【BUG】【K631AN】【应用分身】下载支持应用分身的应用（QQ），开启应用分身，返回桌面，会出现所有应用的分身。

1、进入设置中的应用界面逻辑代码

AppDashboardFragment.java,通过getPreferenceScreenResId()进入应用界面的布局文件app.xml

/*
 * Copyright (C) 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings.applications;

import android.app.settings.SettingsEnums;
import android.content.Context;
import android.provider.SearchIndexableResource;

import com.android.settings.R;
import com.android.settings.dashboard.DashboardFragment;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settingslib.core.AbstractPreferenceController;
import com.android.settingslib.search.SearchIndexable;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/** Settings page for apps. */
@SearchIndexable
public class AppDashboardFragment extends DashboardFragment {

    private static final String TAG = "AppDashboardFragment";
    private AppsPreferenceController mAppsPreferenceController;

    private static List<AbstractPreferenceController> buildPreferenceControllers(Context context) {
        final List<AbstractPreferenceController> controllers = new ArrayList<>();
        controllers.add(new AppsPreferenceController(context));
        return controllers;
    }

    @Override
    public int getMetricsCategory() {
        return SettingsEnums.MANAGE_APPLICATIONS;
    }

    @Override
    protected String getLogTag() {
        return TAG;
    }

    @Override
    public int getHelpResource() {
        return R.string.help_url_apps_and_notifications;
    }

    @Override
    protected int getPreferenceScreenResId() {
        return R.xml.apps;
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        use(SpecialAppAccessPreferenceController.class).setSession(getSettingsLifecycle());
        mAppsPreferenceController = use(AppsPreferenceController.class);
        mAppsPreferenceController.setFragment(this /* fragment */);
        getSettingsLifecycle().addObserver(mAppsPreferenceController);

        final HibernatedAppsPreferenceController hibernatedAppsPreferenceController =
                use(HibernatedAppsPreferenceController.class);
        getSettingsLifecycle().addObserver(hibernatedAppsPreferenceController);
    }

    @Override
    protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
        return buildPreferenceControllers(context);
    }

    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
            new BaseSearchIndexProvider() {
                @Override
                public List<SearchIndexableResource> getXmlResourcesToIndex(
                        Context context, boolean enabled) {
                    final SearchIndexableResource sir = new SearchIndexableResource(context);
                    sir.xmlResId = R.xml.apps;
                    return Arrays.asList(sir);
                }

                @Override
                public List<AbstractPreferenceController> createPreferenceControllers(
                        Context context) {
                    return buildPreferenceControllers(context);
                }
            };
}
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<PreferenceScreen
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:settings="http://schemas.android.com/apk/res-auto"
    android:key="apps_screen"
    android:title="@string/apps_dashboard_title">

    <Preference
        android:key="all_app_infos"
        android:title="@string/all_apps"
        android:summary="@string/summary_placeholder"
        android:order="-999"
        android:fragment="com.android.settings.applications.manageapplications.ManageApplications"
        settings:keywords="@string/keywords_applications_settings"/>
	
    
    <PreferenceCategory
        android:key="recent_apps_category"
        android:title="@string/recent_app_category_title"
        android:order="-998"
        settings:searchable="false">
        

        
        <Preference
            android:key="see_all_apps"
            android:title="@string/default_see_all_apps_title"
            android:icon="@drawable/ic_chevron_right_24dp"
            android:fragment="com.android.settings.applications.manageapplications.ManageApplications"
            android:order="5"
            settings:searchable="false">
        Preference>
    PreferenceCategory>

    <PreferenceCategory
        android:key="general_category"
        android:title="@string/category_name_general"
        android:order="-997"
        android:visibility="gone"
        settings:searchable="false"/>

    <Preference
        android:key="default_apps"
        android:title="@string/app_default_dashboard_title"
        android:order="-996"
        settings:controller="com.android.settings.applications.DefaultAppsPreferenceController">
        <intent android:action="android.settings.MANAGE_DEFAULT_APPS_SETTINGS"/>
    Preference>

    <Preference
        android:key="game_settings"
        android:title="@string/game_settings_title"
        android:summary="@string/game_settings_summary"
        android:order="-995"
        settings:controller="com.android.settings.applications.GameSettingsPreferenceController">
    Preference>

    <PreferenceCategory
        android:key="dashboard_tile_placeholder"
        android:order="10"/>

    <Preference
        android:key="hibernated_apps"
        android:title="@string/unused_apps"
        android:summary="@string/summary_placeholder"
        android:order="15"
        settings:keywords="app_hibernation_key"
        settings:controller="com.android.settings.applications.HibernatedAppsPreferenceController">
        <intent android:action="android.intent.action.MANAGE_UNUSED_APPS"/>
    Preference>

    <Preference
        android:key="special_access"
        android:fragment="com.android.settings.applications.specialaccess.SpecialAccessSettings"
        android:title="@string/special_access"
        android:order="20"
        settings:controller="com.android.settings.applications.SpecialAppAccessPreferenceController"/>
	
    
    <Preference
        android:key="parallel_app"
        android:fragment="com.android.settings.applications.parallelapp.ParallelAppSettings"
        android:title="@string/parallel_app"
        android:order="25"
        settings:controller="com.android.settings.applications.parallelapp.ParallelAppPreferenceController"/>
PreferenceScreen>
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2、进入手机分身的fragment类

ParallelAppSettings.java

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

package com.android.settings.applications.parallelapp;

import android.app.ActivityManager;
import android.app.IActivityManager;
import android.app.settings.SettingsEnums;
import android.content.Context;
import android.content.pm.UserInfo;
import android.os.Bundle;
import android.os.RemoteException;
import android.os.UserHandle;
import android.os.UserManager;
import android.widget.Switch;
import android.util.Log;

import androidx.preference.PreferenceGroup;

import com.android.settings.R;
import com.android.settings.dashboard.DashboardFragment;
import com.android.settings.SettingsActivity;
import com.android.settingslib.applications.ApplicationsState;
import com.android.settingslib.applications.ApplicationsState.AppFilter;

import java.util.List;

public class ParallelAppSettings extends DashboardFragment {
    private static final String TAG = "ParallelAppSettings";
    private static final String KEY = "app_list";
    private AppFilter mFilter;
    private int mCloneUserId = -1;
    private IActivityManager mAms;
    private UserManager mUm;
    PreferenceGroup mAppList;

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        mUm = (UserManager) context.getSystemService(Context.USER_SERVICE);
            mFilter = ApplicationsState.FILTER_ALL_ENABLED;
        use(ManageParallelAppsPreferenceController.class).setSession(getSettingsLifecycle());
        use(ManageParallelAppsPreferenceController.class).setParentFragment(this);
        use(ManageParallelAppsPreferenceController.class).setFilter(mFilter);
        mAms = ActivityManager.getService();
    }

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        // 获取布局文件中PreferenceCategory中key
        mAppList = (PreferenceGroup) findPreference(KEY);
        android.util.Log.d("xin.wang", " Content of mAppList : " + mAppList.getPreferenceCount());
        // 视图反射进入ManageParallelAppsPreferenceController，设置setPreferenceGroup
        use(ManageParallelAppsPreferenceController.class).setPreferenceGroup(mAppList);
    }

    @Override
    public void onResume() {
        super.onResume();
        use(ManageParallelAppsPreferenceController.class).rebuild();
    }

    @Override
    protected String getLogTag() {
        return TAG;
    }

    @Override
    protected int getPreferenceScreenResId() {
        return R.xml.parallel_app_settings;
    }

    @Override
    public int getMetricsCategory() {
        return SettingsEnums.PAGE_UNKNOWN;
    }
}
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user()方法，是父类DashboardFragment的方法

 protected <T extends AbstractPreferenceController> T use(Class<T> clazz) {
         List<AbstractPreferenceController> controllerList = mPreferenceControllers.get(clazz);
          if (controllerList != null) {
              if (controllerList.size() > 1) {
                  Log.w(TAG, "Multiple controllers of Class " + clazz.getSimpleName()
                          + " found, returning first one.");
              }
              return (T) controllerList.get(0);
          }
  
          return null;
      }
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进入布局文件parallel_app_settings.xml

<PreferenceScreen
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:settings="http://schemas.android.com/apk/res-auto"
    android:key="parallel_app_settings"
    android:title="@string/parallel_app"
    settings:controller="com.android.settings.applications.parallelapp.ManageParallelAppsPreferenceController"
    settings:searchable="false">

    <com.android.settingslib.widget.TopIntroPreference
         android:key="support_app"
         android:title="@string/parallel_app_support"/>

    <PreferenceCategory
        android:key="app_list"
        android:order="10"
        settings:searchable="false">
    PreferenceCategory>

PreferenceScreen>
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进入ManageParallelAppsPreferenceController

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings.applications.parallelapp;

import android.app.ActivityManager;
import android.app.Application;
import android.content.Context;
import android.content.pm.PackageInstaller;
import android.content.pm.PackageManager;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.os.UserManager;

import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import androidx.preference.PreferenceGroup;

import com.android.settings.applications.AppStateBaseBridge;
import com.android.settings.core.BasePreferenceController;
import com.android.settings.dashboard.DashboardFragment;
import com.android.settings.R;
import com.android.settings.Utils;
import com.android.settingslib.applications.ApplicationsState;
import com.android.settingslib.applications.ApplicationsState.AppEntry;
import com.android.settingslib.applications.ApplicationsState.AppFilter;
import com.android.settingslib.core.lifecycle.Lifecycle;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.TreeSet;

public class ManageParallelAppsPreferenceController extends BasePreferenceController implements
        ApplicationsState.Callbacks, Preference.OnPreferenceChangeListener {
    private static final String TAG = "ManageParallelAppsPreferenceController";
    private final ApplicationsState mApplicationsState;
    private final PackageInstaller mPackageInstaller;
    private final PackageManager mPm;
    private final UserManager mUm;
    private ApplicationsState.Session mSession;
    private AppFilter mFilter;
    private Context mContext;
    private ParallelAppSettings mParentFragment;
    private HashSet<String> mSupportAppClone;
    PreferenceGroup mAppList;

    public ManageParallelAppsPreferenceController(Context context, String key) {
        super(context, key);

        mContext = context;
        mApplicationsState = ApplicationsState.getInstance(
                (Application) context.getApplicationContext());
        mPm = mContext.getPackageManager();
        mPackageInstaller = mPm.getPackageInstaller();
        mUm = (UserManager) context.getSystemService(Context.USER_SERVICE);
        //get app could cloning by -> com.tencent.mm=>微信,com.sina.weibo=>微博,com.tencent.mobilqq=>QQ,com.ss.android.ugc.aweme=>抖音
        // 读取支持手机分身的应用包名
        String[] supportApps = context.getResources().getStringArray(com.unisoc.internal.R.array.support_app_clone);
        // 将数组转化为列表
        mSupportAppClone = new HashSet<String>(Arrays.asList(supportApps));
    }

    @Override
    public int getAvailabilityStatus() {
        ActivityManager activityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
        boolean isAdmin = mUm.isAdminUser();
        boolean isLowRam = activityManager.isLowRamDevice();
        boolean isSupportAppClone = mContext.getResources().getBoolean(R.bool.config_support_appclone);

        return isAdmin && !isLowRam && isSupportAppClone ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
    }

    @Override
    public void onRebuildComplete(ArrayList<AppEntry> apps) {
        if (apps == null) {
            return;
        }

        final Set<String> appsKeySet = new TreeSet<>();
        final int N = apps.size();
        android.util.Log.d("xin.wang", "apps.size -> " + N);
        for (int i = 0; i < N; i++) {
            final AppEntry entry = apps.get(i);
            android.util.Log.d("xin.wang", "AppEntry entry --> " + entry.toString());
            boolean isSupportClone = mSupportAppClone.contains(entry.info.packageName);
            android.util.Log.d("xin.wang", "get Should Clone for clone --> " + mSupportAppClone);
            android.util.Log.d("xin.wang", "get app packageName : -> " + entry.info.packageName + "<- isSupportClone ->" + isSupportClone );
            int userId = UserHandle.getUserId(entry.info.uid);
            boolean isAdminUser = mUm.isUserAdmin(userId);

            if (mSupportAppClone.contains(entry.info.packageName) && isAdminUser) {
                if (!shouldAddPreference(entry)) {
                    continue;
                }
                final String prefkey = ParallelAppPreference.generateKey(entry);
                appsKeySet.add(prefkey);
                android.util.Log.d("xin.wang", " get appsKeySet -> " + appsKeySet + "<- prefkey ->" + prefkey);
                // 获取布局中key
                ParallelAppPreference preference =
                        (ParallelAppPreference) mAppList.findPreference(prefkey);
                // 当布局为空的时候，实例化一个布局
                if (preference == null) {
                    preference = new ParallelAppPreference(mContext, entry,
                            mApplicationsState, mUm, mPm, mPackageInstaller);
                    preference.setOnPreferenceChangeListener(this);
                    mAppList.addPreference(preference);
                } else {
                    preference.updateState();
                }
                preference.setOrder(i);
            }
        }

        removeUselessPrefs(appsKeySet);
    }

    @Override
    public void onRunningStateChanged(boolean running) {}

    @Override
    public void onPackageListChanged() {
        rebuild();
    }

    @Override
    public void onPackageIconChanged() {}

    @Override
    public void onPackageSizeChanged(String packageName) {}

    @Override
    public void onAllSizesComputed() {}

    @Override
    public void onLauncherInfoChanged() {}

    @Override
    public void onLoadEntriesCompleted() {
        rebuild();
    }

    @Override
    public boolean onPreferenceChange(Preference preference, Object newValue) {
        if (Utils.isMonkeyRunning()) {
            return true;
        }
        if (preference instanceof ParallelAppPreference) {
            ParallelAppPreference parAppPreference = (ParallelAppPreference)preference;
            if ((Boolean)newValue) {
                parAppPreference.openParApp();
            } else {
                parAppPreference.createCloseOptionsDialog(mParentFragment.getActivity());
            }
        }
        return true;
    }

    public void setFilter(AppFilter filter) {
        mFilter = filter;
    }

    public void setSession(Lifecycle lifecycle) {
        mSession = mApplicationsState.newSession(this, lifecycle);
    }

    public void setParentFragment(ParallelAppSettings parentFragment) {
        mParentFragment = parentFragment;
    }

    public void setPreferenceGroup(PreferenceGroup appList) {
        mAppList = appList;
        android.util.Log.d("xin.wang", "setPreferenceGroup: -> appList -> " + appList.getPreferenceCount());
    }

    private boolean shouldAddPreference(AppEntry app) {
        return app != null && UserHandle.isApp(app.info.uid);
    }

    private void removeUselessPrefs(final Set<String> appsKeySet) {
        final int prefCount = mAppList.getPreferenceCount();
        android.util.Log.d("xin.wang", "<- prefCount ->  " + prefCount);
        String prefKey;
        if (prefCount > 0) {
            for (int i = prefCount - 1; i >= 0; i--) {
                Preference pref = mAppList.getPreference(i);
                prefKey = pref.getKey();
                boolean isEmpty = !appsKeySet.isEmpty();
                boolean contains = appsKeySet.contains(prefKey);
                android.util.Log.d("xin.wang", "<- isEmpty -> " + isEmpty + "<- contains -> " + contains + "<- appsKeySet -> " + appsKeySet + "<- preKey ->" + prefKey);
                if (!appsKeySet.isEmpty() && appsKeySet.contains(prefKey)) {
                    continue;
                }
                mAppList.removePreference(pref);
            }
        }
    }

    public void rebuild() {
        final ArrayList<AppEntry> apps = mSession.rebuild(mFilter,
                ApplicationsState.ALPHA_COMPARATOR);
        boolean flag = apps != null;
        if (apps != null) {
            android.util.Log.d("xin.wang", "rebuild: <-- apps -> " + apps.size());
            onRebuildComplete(apps);
        }
    }
}
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进入分身的布局ParallelAppPreference.java

点击swicth开启分身的时候创建一个Toast来提醒

关闭分身弹出dialog，判断是否进行关闭

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings.applications.parallelapp;

import android.app.Activity;
import android.app.ActivityManager;
import android.app.IActivityManager;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.IPackageManager;
import android.content.pm.PackageInstaller;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.UserInfo;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.os.UserManager;
import android.util.Log;
import android.view.View;
import android.widget.Toast;

import androidx.appcompat.app.AlertDialog;
import androidx.preference.DialogPreference;
import androidx.preference.PreferenceViewHolder;

import com.android.settings.R;
import com.android.settingslib.applications.ApplicationsState;
import com.android.settingslib.applications.ApplicationsState.AppEntry;
import com.android.settingslib.widget.AppSwitchPreference;

import java.util.List;

public class ParallelAppPreference extends AppSwitchPreference {
    private final ApplicationsState mApplicationsState;
    private final AppEntry mEntry;
    private final PackageInstaller mPackageInstaller;
    private final PackageManager mPm;
    private final String TAG = "ParallelAppPreference";
    private final UserManager mUm;
    private Activity mActivity;
    private Context mContext;

    public ParallelAppPreference (final Context context, AppEntry entry,
            ApplicationsState applicationsState, UserManager um, PackageManager pm, PackageInstaller pi) {
        super(context);
        mContext = context;
        setWidgetLayoutResource(R.layout.restricted_switch_widget);
        mEntry = entry;
        mEntry.ensureLabel(context);
        mApplicationsState = applicationsState;
        mPm = pm;
        mPackageInstaller = pi;
        mUm = um;
        setKey(generateKey(mEntry));
        if (mEntry.icon == null) {
            mApplicationsState.ensureIcon(mEntry);
        }
        setIcon(mEntry.icon);
        setTitle(mEntry.label);
        updateState();
    }

    static String generateKey(final AppEntry entry) {
        android.util.Log.d("xin.wang", "generateKey: -> AppEntry ->  " + entry.info.packageName + " | " + entry.info.uid);
        return entry.info.packageName + "|" + entry.info.uid;
    }

    @Override
    public void onBindViewHolder(PreferenceViewHolder holder) {
        if (mEntry.icon == null) {
            holder.itemView.post(new Runnable() {
                @Override
                public void run() {
                    mApplicationsState.ensureIcon(mEntry);
                    setIcon(mEntry.icon);
                }
            });
        }
        final View widgetFrame = holder.findViewById(android.R.id.widget_frame);
        widgetFrame.setVisibility(View.VISIBLE);
        super.onBindViewHolder(holder);

        holder.findViewById(R.id.restricted_icon).setVisibility(View.GONE);
        holder.findViewById(android.R.id.switch_widget).setVisibility(View.VISIBLE);
    }
	
    // 更新状态
    public void updateState() {
        boolean isChecked = false;
        boolean hasCloneUser = hasCloneUser();
        try {
            if (hasCloneUser) {
                ApplicationInfo info = mPm.getApplicationInfoAsUser(
                                mEntry.info.packageName, PackageManager.GET_META_DATA, getCloneUser());
                isChecked = (info.flags & ApplicationInfo.FLAG_INSTALLED) != 0 ? true : false;
                android.util.Log.d("xin.wang", "updateState -> 1 -> : " + isChecked);
            }
            android.util.Log.d("xin.wang", "updateState -> 2 -> : " + isChecked);
            setChecked(isChecked);
        } catch (NameNotFoundException e) {
             Log.e(TAG,"can not found Application "+mEntry.label);
        }
    }
    //关闭应用分身的时候弹出的dialog -> parallel_app_close -> 当关闭时分身应用的所有数据将会被清除。您确定要继续吗?
    public void createCloseOptionsDialog(Activity activity) {
        mActivity = activity;
        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
        builder.setMessage(mContext.getResources().getString(R.string.parallel_app_close));
        builder.setPositiveButton(android.R.string.ok, mDialogClickListener);
        builder.setNegativeButton(android.R.string.cancel, mDialogClickListener);
        AlertDialog dialog = builder.create();
        dialog.setCancelable(false);
        dialog.show();
    }
	
    // 开始手机分身
    public void openParApp() {
        if (!hasCloneUser()) {
            createAndStartCloneUser();
        }
        try {
            //应用双开的方法 -> installExistingPackageAsUser(String packageName,int userId);
            int status = mPm.installExistingPackageAsUser(mEntry.info.packageName, getCloneUser());
            android.util.Log.d("xin.wang", "openParApp: -> status -> " + status + "<- mEntry.info.packageName -> " + mEntry.info.packageName);
            if (status == PackageManager.INSTALL_SUCCEEDED) {   //PackageManager.INSTALL_SUCCEEDED -> 返回安装成功的状态码 1
                android.util.Log.d("xin.wang", "openParApp: -> status -> " + status);
                createToast();
            } else {
                Log.d(TAG, "open Parallel App failed status:"+status);
            }
        } catch (PackageManager.NameNotFoundException e) {
            Log.d(TAG, "open Parallel App failed ,"+e);
        }
    }

    // 创建开启分身的Toast -> 分身的 %1$s 已经创建
    private void createToast() {
        String content = String.format(mContext.getResources().getString(R.string.parallel_app_open), mEntry.label);
        Toast.makeText(mContext, content, Toast.LENGTH_LONG).show();
    }
	
    // 获取克隆的用户
    private int getCloneUser() {
        int cloneUserId = UserHandle.myUserId();
        int userCount = 0;
        List<UserInfo> users = mUm.getUsers();  //UserManager.getUser() -> 获取所有的用户信息
        for(UserInfo user : users){
            userCount++;
            android.util.Log.d("xin.wang", "getCloneUser: users -> " + userCount);
            if (user.userType != null && user.userType.equals(UserManager.USER_TYPE_PROFILE_CLONE)) {
                cloneUserId = user.id;
            }
        }
        return cloneUserId;
    }
	
    //判断是否克隆
    private boolean hasCloneUser() {
        boolean hasCloneUser = false;
        List<UserInfo> users = mUm.getUsers();  // UserManager.getUsers() -> 获取所有的用户信息
        android.util.Log.d("xin.wang", "hasCloneUser: -> user -> " + users + "<- user.size() -> " + users.size());
        for(UserInfo user : users){
            android.util.Log.d("xin.wang", "hasCloneUser: -> user.userType -> " + user.userType);
            if (user.userType != null && user.userType.equals(UserManager.USER_TYPE_PROFILE_CLONE)) {
                hasCloneUser = true;
                break;
            }
        }
        return hasCloneUser;
    }
	
    //创建第二个user用户
    private void createAndStartCloneUser() {
        String userName = mContext.getResources().getString(R.string.clone_user);
        UserInfo userInfo = mUm.createProfileForUser(userName, UserManager.USER_TYPE_PROFILE_CLONE,
                UserInfo.FLAG_PROFILE, UserHandle.USER_SYSTEM);
        IActivityManager ams = ActivityManager.getService();
        try {
            ams.startUserInBackground(userInfo.getUserHandle().getIdentifier());
        } catch(RemoteException e) {
            Log.d(TAG, "create and start clone user failed");
            e.printStackTrace();
        }
    }
	
    //关闭手机分身的时候弹出的dialog
    private DialogInterface.OnClickListener mDialogClickListener = new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface arg0, int arg1) {
            if (arg1 == DialogInterface.BUTTON_NEGATIVE) { //DialogInterface.BUTTON_NEGATIVE -> 取消按钮，点击dialog的取消按钮
                setChecked(true);
            } else {
                //deletePackageAsUser(String packageName,IPackageDeleteObserver observer,int Flags,int userId);
                mPm.deletePackageAsUser(mEntry.info.packageName, null, 0, getCloneUser());
                android.util.Log.d("xin.wang", "DialogInterface.OnClickListener ->  mEntry.info.packageName -> " + mEntry.info.packageName);
            }
        }
    };
}
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3、计算应用界面中应用的数量

通过该界面的布局文件app.xml中的key-> recent_apps_category

进入AppsPreferenceController.java类中，该类计算当前应用的数量，并且显示当前使用的应用数量

通过分析，可知，该方法中的loadAllAppsCount()加载所有app的数量，该方法实例化InstalledAppCounter类，并重写onCountComplete()方法

/*
 * Copyright (C) 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings.applications;

import android.app.Application;
import android.app.usage.UsageStats;
import android.content.Context;
import android.icu.text.RelativeDateTimeFormatter;
import android.os.UserHandle;
import android.text.TextUtils;
import android.util.ArrayMap;

import androidx.annotation.VisibleForTesting;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.Lifecycle;
import androidx.lifecycle.LifecycleObserver;
import androidx.lifecycle.OnLifecycleEvent;
import androidx.preference.Preference;
import androidx.preference.PreferenceCategory;
import androidx.preference.PreferenceScreen;

import com.android.settings.R;
import com.android.settings.applications.appinfo.AppInfoDashboardFragment;
import com.android.settings.core.BasePreferenceController;
import com.android.settingslib.Utils;
import com.android.settingslib.applications.ApplicationsState;
import com.android.settingslib.utils.StringUtil;
import com.android.settingslib.widget.AppPreference;

import java.util.List;
import java.util.Map;

/**
 * This controller displays up to four recently used apps.
 * If there is no recently used app, we only show up an "App Info" preference.
 */
public class AppsPreferenceController extends BasePreferenceController implements
        LifecycleObserver {

    public static final int SHOW_RECENT_APP_COUNT = 4;

    @VisibleForTesting
    static final String KEY_RECENT_APPS_CATEGORY = "recent_apps_category";
    @VisibleForTesting
    static final String KEY_GENERAL_CATEGORY = "general_category";
    @VisibleForTesting
    static final String KEY_ALL_APP_INFO = "all_app_infos";
    @VisibleForTesting
    static final String KEY_SEE_ALL = "see_all_apps";

    private final ApplicationsState mApplicationsState;
    private final int mUserId;

    @VisibleForTesting
    List<UsageStats> mRecentApps;
    @VisibleForTesting
    PreferenceCategory mRecentAppsCategory;
    @VisibleForTesting
    PreferenceCategory mGeneralCategory;
    @VisibleForTesting
    Preference mAllAppsInfoPref;
    @VisibleForTesting
    Preference mSeeAllPref;

    private Fragment mHost;
    private boolean mInitialLaunch = false;

    public AppsPreferenceController(Context context) {
        super(context, KEY_RECENT_APPS_CATEGORY);
        mApplicationsState = ApplicationsState.getInstance(
                (Application) mContext.getApplicationContext());
        mUserId = UserHandle.myUserId();
    }

    public void setFragment(Fragment fragment) {
        mHost = fragment;
    }

    @Override
    public int getAvailabilityStatus() {
        return AVAILABLE_UNSEARCHABLE;
    }

    @Override
    public void displayPreference(PreferenceScreen screen) {
        super.displayPreference(screen);
        initPreferences(screen);
        refreshUi();
        mInitialLaunch = true;
    }

    @Override
    public void updateState(Preference preference) {
        super.updateState(preference);
        if (!mInitialLaunch) {
            refreshUi();
        }
    }

    /**
     * Called when the apps page pauses.
     */
    @OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
    public void onPause() {
        mInitialLaunch = false;
    }

    @VisibleForTesting
    void refreshUi() {
        loadAllAppsCount();
        mRecentApps = loadRecentApps();
        android.util.Log.d("xin.wang", "mRecentApps -> : " + mRecentApps.size() + "<- loadAllAppsCount -> " + loadRecentApps());
        if (!mRecentApps.isEmpty()) {
            displayRecentApps();
            mAllAppsInfoPref.setVisible(false);
            mRecentAppsCategory.setVisible(true);
            mGeneralCategory.setVisible(true);
            mSeeAllPref.setVisible(true);
        } else {
            mAllAppsInfoPref.setVisible(true);
            mRecentAppsCategory.setVisible(false);
            mGeneralCategory.setVisible(false);
            mSeeAllPref.setVisible(false);
        }
    }
	
    // 计算应用的数量
    @VisibleForTesting
    void loadAllAppsCount() {
        // Show total number of installed apps as See all's summary.
        new InstalledAppCounter(mContext, InstalledAppCounter.IGNORE_INSTALL_REASON,
                mContext.getPackageManager()) {
            @Override
            protected void onCountComplete(int num) {
                if (!mRecentApps.isEmpty()) {
                    mSeeAllPref.setTitle(
                            mContext.getResources().getQuantityString(R.plurals.see_all_apps_title,
                                    num, num));
                    android.util.Log.d("xin.wang", "onCountComplete: -> AppsCount -> " + num);
                } else {
                    mAllAppsInfoPref.setSummary(mContext.getString(R.string.apps_summary, num));
                }
            }
        }.execute();
    }

    @VisibleForTesting
    List<UsageStats> loadRecentApps() {
        final RecentAppStatsMixin recentAppStatsMixin = new RecentAppStatsMixin(mContext,
                SHOW_RECENT_APP_COUNT);
        recentAppStatsMixin.loadDisplayableRecentApps(SHOW_RECENT_APP_COUNT);
        return recentAppStatsMixin.mRecentApps;
    }

    private void initPreferences(PreferenceScreen screen) {
        mRecentAppsCategory = screen.findPreference(KEY_RECENT_APPS_CATEGORY);
        mGeneralCategory = screen.findPreference(KEY_GENERAL_CATEGORY);
        mAllAppsInfoPref = screen.findPreference(KEY_ALL_APP_INFO);
        mSeeAllPref = screen.findPreference(KEY_SEE_ALL);
        mRecentAppsCategory.setVisible(false);
        mGeneralCategory.setVisible(false);
        mAllAppsInfoPref.setVisible(false);
        mSeeAllPref.setVisible(false);
    }

    private void displayRecentApps() {
        if (mRecentAppsCategory != null) {
            final Map<String, Preference> existedAppPreferences = new ArrayMap<>();
            final int prefCount = mRecentAppsCategory.getPreferenceCount();
            android.util.Log.d("xin.wang", "<- prefCount -> : " + prefCount);
            for (int i = 0; i < prefCount; i++) {
                final Preference pref = mRecentAppsCategory.getPreference(i);
                final String key = pref.getKey();
               // android.util.Log.d("xin.wang", "for each key -> : " + key);
                if (!TextUtils.equals(key, KEY_SEE_ALL)) {
                    existedAppPreferences.put(key, pref);
                }
                android.util.Log.d("xin.wang", "<- Map -> " + existedAppPreferences);
            }

            int showAppsCount = 0;
            android.util.Log.d("xin.wang", "List mRecentApps -> : " + mRecentApps);
            for (UsageStats stat : mRecentApps) {
                final String pkgName = stat.getPackageName();
                final ApplicationsState.AppEntry appEntry =
                        mApplicationsState.getEntry(pkgName, mUserId);
                if (appEntry == null) {
                    continue;
                }

                boolean rebindPref = true;
                Preference pref = existedAppPreferences.remove(pkgName);
                if (pref == null) {
                    pref = new AppPreference(mContext);
                    rebindPref = false;
                }

                android.util.Log.d("xin.wang", "pkgName -> : " + pkgName + "<- appEntry.label -> : " + appEntry.label + "<- pref -> " + pref);
                pref.setKey(pkgName);
                pref.setTitle(appEntry.label);
                pref.setIcon(Utils.getBadgedIcon(mContext, appEntry.info));
                pref.setSummary(StringUtil.formatRelativeTime(mContext,
                        System.currentTimeMillis() - stat.getLastTimeUsed(), false,
                        RelativeDateTimeFormatter.Style.SHORT));
                pref.setOrder(showAppsCount++);
                pref.setOnPreferenceClickListener(preference -> {
                    AppInfoBase.startAppInfoFragment(AppInfoDashboardFragment.class,
                            R.string.application_info_label, pkgName, appEntry.info.uid,
                            mHost, 1001 /*RequestCode*/, getMetricsCategory());
                    return true;
                });

                if (!rebindPref) {
                    mRecentAppsCategory.addPreference(pref);
                }
            }

            // Remove unused preferences from pref category.
            for (Preference unusedPref : existedAppPreferences.values()) {
                mRecentAppsCategory.removePreference(unusedPref);
            }
        }
    }
}
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进入超父类AppCounter.java中

doInBackground方法进行计算总数量，该计算方法，通过遍历用户和应用双重遍历进行计算，所以算出来的数量double，所以在doInBackground(Void... params)中，只获取第一个用户，在进行遍历应用

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

package com.android.settings.applications;

import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.UserInfo;
import android.os.AsyncTask;
import android.os.UserHandle;
import android.os.UserManager;

import java.util.List;

public abstract class AppCounter extends AsyncTask<Void, Void, Integer> {

    protected final PackageManager mPm;
    protected final UserManager mUm;

    public AppCounter(Context context, PackageManager packageManager) {
        mPm = packageManager;
        mUm = (UserManager) context.getSystemService(Context.USER_SERVICE);
    }

    @Override
    protected Integer doInBackground(Void... params) {
        //int count = 0;
        //int testNum = 0;
        //int testNum2 = 0;
        //android.util.Log.d("xin.wang", "doInBackground:UserInfo-> " + testNum);
        UserInfo user = mUm.getProfiles(UserHandle.myUserId()).get(0);
        final List<ApplicationInfo> list =
                mPm.getInstalledApplicationsAsUser(PackageManager.GET_DISABLED_COMPONENTS
                                | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS
                                | (user.isAdmin() ? PackageManager.MATCH_ANY_USER : 0),
                        user.id);
        for (ApplicationInfo info : list) {
            //testNum2 ++;
            //android.util.Log.d("xin.wang", "doInBackground: ApplicationInfo -> " + testNum2);
            if (includeInCount(info)) {
                count++;
                //android.util.Log.d("xin.wang", "doInBackground: includeInCount -> " + count);
            }
        }
        /*for (UserInfo user : mUm.getProfiles(UserHandle.myUserId())) {
            testNum ++ ;
            android.util.Log.d("xin.wang", "doInBackground:UserInfo-> " + testNum);
            final List list =
                    mPm.getInstalledApplicationsAsUser(PackageManager.GET_DISABLED_COMPONENTS
                            | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS
                            | (user.isAdmin() ? PackageManager.MATCH_ANY_USER : 0),
                            user.id);
            for (ApplicationInfo info : list) {
                testNum2 ++;
                android.util.Log.d("xin.wang", "doInBackground: ApplicationInfo -> " + testNum2);
                if (includeInCount(info)) {
                    count++;
                    android.util.Log.d("xin.wang", "doInBackground: includeInCount -> " + count);
                }
            }
        }*/
        return count;
    }

    @Override
    protected void onPostExecute(Integer count) {
        onCountComplete(count);
    }

    void executeInForeground() {
        onPostExecute(doInBackground());
    }

    protected abstract void onCountComplete(int num);
    protected abstract boolean includeInCount(ApplicationInfo info);
}
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4、进入所有应用

该界面的方法ManageApplications.java类来显示应用图标和名字

该类有两个内部类适配器

FilterSpinnerAdapter-> SettingsSpinnerAdapter的适配器

ApplicationsAdapter-> RecyclerView的适配器

createHeader()在该方法中创建头部SpinnerHeader，关闭头部的时候只显示一个FILTER_APPS_PERSONAL的应用

 @VisibleForTesting
    void createHeader() {
        final Activity activity = getActivity();
        final FrameLayout pinnedHeader = mRootView.findViewById(R.id.pinned_header);
        mSpinnerHeader = activity.getLayoutInflater()
                .inflate(R.layout.manage_apps_filter_spinner, pinnedHeader, false);
        mFilterSpinner = mSpinnerHeader.findViewById(R.id.filter_spinner);
        mFilterAdapter = new FilterSpinnerAdapter(this);
        mFilterSpinner.setAdapter(mFilterAdapter);
        mFilterSpinner.setOnItemSelectedListener(this);
        mFilterSpinner.setVisibility(View.GONE);
        pinnedHeader.addView(mSpinnerHeader, 0);

        final AppFilterRegistry appFilterRegistry = AppFilterRegistry.getInstance();
        final int filterType = appFilterRegistry.getDefaultFilterType(mListType);
        android.util.Log.d("xin.wang", "createHeader:-> filterType -> " + mListType + "<- filterType -> " + filterType); //filterType = 4 -> FILTER_APPS_ALL
        android.util.Log.d("xin.wang", "createHeader:->mFilterOptions.size()-> " + mFilterAdapter.getCount());
        //mFilterAdapter.enableFilter(filterType);    //filterType = 4 -> FILTER_APPS_ALL

        if (mListType == LIST_TYPE_MAIN) {
            if (UserManager.get(getActivity()).getUserProfiles().size() > 1 && !mIsWorkOnly
                    && !mIsPersonalOnly) {
                mFilterAdapter.enableFilter(FILTER_APPS_PERSONAL);
                //mFilterAdapter.enableFilter(FILTER_APPS_WORK);
            }
        }

        if (mListType == LIST_TYPE_NOTIFICATION) {
            mFilterAdapter.enableFilter(FILTER_APPS_RECENT);
            mFilterAdapter.enableFilter(FILTER_APPS_FREQUENT);
            mFilterAdapter.enableFilter(FILTER_APPS_BLOCKED);
            mFilterAdapter.enableFilter(FILTER_APPS_ALL);
        }
        if (mListType == LIST_TYPE_HIGH_POWER) {
            mFilterAdapter.enableFilter(FILTER_APPS_POWER_ALLOWLIST_ALL);
        }

        setCompositeFilter();
    }
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/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings.applications.manageapplications;

import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE;

import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_ALL;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_BLOCKED;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_DISABLED;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_ENABLED;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_FREQUENT;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_INSTANT;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_PERSONAL;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_POWER_ALLOWLIST;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_POWER_ALLOWLIST_ALL;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_RECENT;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_WORK;
import static com.android.settings.search.actionbar.SearchMenuController.MENU_SEARCH;

import android.annotation.Nullable;
import android.annotation.StringRes;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.settings.SettingsEnums;
import android.app.usage.IUsageStatsManager;
import android.compat.annotation.ChangeId;
import android.compat.annotation.LoggingOnly;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageItemInfo;
import android.content.pm.UserInfo;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.os.UserManager;
import android.preference.PreferenceFrameLayout;
import android.text.TextUtils;
import android.util.ArraySet;
import android.util.IconDrawableFactory;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.Filter;
import android.widget.FrameLayout;
import android.widget.SearchView;
import android.widget.Spinner;

import androidx.annotation.NonNull;
import androidx.annotation.VisibleForTesting;
import androidx.annotation.WorkerThread;
import androidx.coordinatorlayout.widget.CoordinatorLayout;
import androidx.core.view.ViewCompat;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import com.android.internal.compat.IPlatformCompat;
import com.android.settings.R;
import com.android.settings.Settings;
import com.android.settings.Settings.GamesStorageActivity;
import com.android.settings.Settings.HighPowerApplicationsActivity;
import com.android.settings.Settings.ManageExternalSourcesActivity;
import com.android.settings.Settings.OverlaySettingsActivity;
import com.android.settings.Settings.StorageUseActivity;
import com.android.settings.Settings.UsageAccessSettingsActivity;
import com.android.settings.Settings.WriteSettingsActivity;
import com.android.settings.SettingsActivity;
import com.android.settings.Utils;
import com.android.settings.applications.AppInfoBase;
import com.android.settings.applications.AppStateAlarmsAndRemindersBridge;
import com.android.settings.applications.AppStateAppOpsBridge.PermissionState;
import com.android.settings.applications.AppStateBaseBridge;
import com.android.settings.applications.AppStateInstallAppsBridge;
import com.android.settings.applications.AppStateManageExternalStorageBridge;
import com.android.settings.applications.AppStateMediaManagementAppsBridge;
import com.android.settings.applications.AppStateNotificationBridge;
import com.android.settings.applications.AppStateNotificationBridge.NotificationsSentState;
import com.android.settings.applications.AppStateOverlayBridge;
import com.android.settings.applications.AppStatePowerBridge;
import com.android.settings.applications.AppStateUsageBridge;
import com.android.settings.applications.AppStateUsageBridge.UsageState;
import com.android.settings.applications.AppStateWriteSettingsBridge;
import com.android.settings.applications.AppStorageSettings;
import com.android.settings.applications.UsageAccessDetails;
import com.android.settings.applications.appinfo.AlarmsAndRemindersDetails;
import com.android.settings.applications.appinfo.AppInfoDashboardFragment;
import com.android.settings.applications.appinfo.DrawOverlayDetails;
import com.android.settings.applications.appinfo.ExternalSourcesDetails;
import com.android.settings.applications.appinfo.ManageExternalStorageDetails;
import com.android.settings.applications.appinfo.MediaManagementAppsDetails;
import com.android.settings.applications.appinfo.WriteSettingsDetails;
import com.android.settings.core.InstrumentedFragment;
import com.android.settings.core.SubSettingLauncher;
import com.android.settings.dashboard.profileselector.ProfileSelectFragment;
import com.android.settings.fuelgauge.HighPowerDetail;
import com.android.settings.notification.ConfigureNotificationSettings;
import com.android.settings.notification.NotificationBackend;
import com.android.settings.notification.app.AppNotificationSettings;
import com.android.settings.widget.LoadingViewController;
import com.android.settings.wifi.AppStateChangeWifiStateBridge;
import com.android.settings.wifi.ChangeWifiStateDetails;
import com.android.settingslib.applications.ApplicationsState;
import com.android.settingslib.applications.ApplicationsState.AppEntry;
import com.android.settingslib.applications.ApplicationsState.AppFilter;
import com.android.settingslib.applications.ApplicationsState.CompoundFilter;
import com.android.settingslib.applications.ApplicationsState.VolumeFilter;
import com.android.settingslib.applications.AppUtils;
import com.android.settingslib.fuelgauge.PowerAllowlistBackend;
import com.android.settingslib.utils.ThreadUtils;
import com.android.settingslib.widget.settingsspinner.SettingsSpinnerAdapter;

import com.google.android.material.appbar.AppBarLayout;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Set;
import java.util.HashSet;

/**
 * Activity to pick an application that will be used to display installation information and
 * options to uninstall/delete user data for system applications. This activity
 * can be launched through Settings or via the ACTION_MANAGE_PACKAGE_STORAGE
 * intent.
 */
public class ManageApplications extends InstrumentedFragment
        implements View.OnClickListener, OnItemSelectedListener, SearchView.OnQueryTextListener,
        MenuItem.OnActionExpandListener {

    static final String TAG = "ManageApplications";
    static final boolean DEBUG = Build.IS_DEBUGGABLE;

    // Intent extras.
    public static final String EXTRA_CLASSNAME = "classname";
    // Used for storage only.
    public static final String EXTRA_VOLUME_UUID = "volumeUuid";
    public static final String EXTRA_VOLUME_NAME = "volumeName";
    public static final String EXTRA_STORAGE_TYPE = "storageType";
    public static final String EXTRA_WORK_ID = "workId";

    private static final String EXTRA_SORT_ORDER = "sortOrder";
    private static final String EXTRA_SHOW_SYSTEM = "showSystem";
    private static final String EXTRA_HAS_ENTRIES = "hasEntries";
    private static final String EXTRA_HAS_BRIDGE = "hasBridge";
    private static final String EXTRA_FILTER_TYPE = "filterType";
    @VisibleForTesting
    static final String EXTRA_EXPAND_SEARCH_VIEW = "expand_search_view";

    // attributes used as keys when passing values to AppInfoDashboardFragment activity
    public static final String APP_CHG = "chg";

    // constant value that can be used to check return code from sub activity.
    private static final int INSTALLED_APP_DETAILS = 1;
    private static final int ADVANCED_SETTINGS = 2;

    public static final int SIZE_TOTAL = 0;
    public static final int SIZE_INTERNAL = 1;
    public static final int SIZE_EXTERNAL = 2;

    // Storage types. Used to determine what the extra item in the list of preferences is.
    public static final int STORAGE_TYPE_DEFAULT = 0; // Show all apps that are not categorized.
    public static final int STORAGE_TYPE_LEGACY = 1;  // Show apps even if they can be categorized.

    /**
     * Intents with action {@code android.settings.MANAGE_APP_OVERLAY_PERMISSION}
     * and data URI scheme {@code package} don't go to the app-specific screen for managing the
     * permission anymore. Instead, they redirect to this screen for managing all the apps that have
     * requested such permission.
     */
    @ChangeId
    @LoggingOnly
    private static final long CHANGE_RESTRICT_SAW_INTENT = 135920175L;

    // sort order
    @VisibleForTesting
    int mSortOrder = R.id.sort_order_alpha;

    // whether showing system apps.
    private boolean mShowSystem;

    private ApplicationsState mApplicationsState;

    public int mListType;
    private AppFilterItem mFilter;
    private ApplicationsAdapter mApplications;

    private View mLoadingContainer;
    private SearchView mSearchView;

    // Size resource used for packages whose size computation failed for some reason
    CharSequence mInvalidSizeStr;

    private String mCurrentPkgName;
    private int mCurrentUid;

    private Menu mOptionsMenu;

    public static final int LIST_TYPE_MAIN = 0;
    public static final int LIST_TYPE_NOTIFICATION = 1;
    public static final int LIST_TYPE_STORAGE = 3;
    public static final int LIST_TYPE_USAGE_ACCESS = 4;
    public static final int LIST_TYPE_HIGH_POWER = 5;
    public static final int LIST_TYPE_OVERLAY = 6;
    public static final int LIST_TYPE_WRITE_SETTINGS = 7;
    public static final int LIST_TYPE_MANAGE_SOURCES = 8;
    public static final int LIST_TYPE_GAMES = 9;
    public static final int LIST_TYPE_WIFI_ACCESS = 10;
    public static final int LIST_MANAGE_EXTERNAL_STORAGE = 11;
    public static final int LIST_TYPE_ALARMS_AND_REMINDERS = 12;
    public static final int LIST_TYPE_MEDIA_MANAGEMENT_APPS = 13;

    // List types that should show instant apps.
    public static final Set LIST_TYPES_WITH_INSTANT = new ArraySet<>(Arrays.asList(
            LIST_TYPE_MAIN,
            LIST_TYPE_STORAGE));

    @VisibleForTesting
    View mSpinnerHeader;
    @VisibleForTesting
    FilterSpinnerAdapter mFilterAdapter;
    @VisibleForTesting
    RecyclerView mRecyclerView;
    // Whether or not search view is expanded.
    @VisibleForTesting
    boolean mExpandSearch;

    private View mRootView;
    private Spinner mFilterSpinner;
    private IUsageStatsManager mUsageStatsManager;
    private UserManager mUserManager;
    private NotificationBackend mNotificationBackend;
    private ResetAppsHelper mResetAppsHelper;
    private String mVolumeUuid;
    private int mStorageType;
    private boolean mIsWorkOnly;
    private int mWorkUserId;
    private boolean mIsPersonalOnly;
    private View mEmptyView;
    private int mFilterType;
    private AppBarLayout mAppBarLayout;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setHasOptionsMenu(true);
        final Activity activity = getActivity();
        mUserManager = activity.getSystemService(UserManager.class);
        mApplicationsState = ApplicationsState.getInstance(activity.getApplication());

        Intent intent = activity.getIntent();
        Bundle args = getArguments();
        int screenTitle = intent.getIntExtra(
                SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE_RESID, R.string.all_apps);
        String className = args != null ? args.getString(EXTRA_CLASSNAME) : null;
        if (className == null) {
            className = intent.getComponent().getClassName();
        }
        if (className.equals(StorageUseActivity.class.getName())) {
            if (args != null && args.containsKey(EXTRA_VOLUME_UUID)) {
                mVolumeUuid = args.getString(EXTRA_VOLUME_UUID);
                mStorageType = args.getInt(EXTRA_STORAGE_TYPE, STORAGE_TYPE_DEFAULT);
                mListType = LIST_TYPE_STORAGE;
            } else {
                // No volume selected, display a normal list, sorted by size.
                mListType = LIST_TYPE_MAIN;
            }
            mSortOrder = R.id.sort_order_size;
        } else if (className.equals(UsageAccessSettingsActivity.class.getName())) {
            mListType = LIST_TYPE_USAGE_ACCESS;
            screenTitle = R.string.usage_access;
        } else if (className.equals(HighPowerApplicationsActivity.class.getName())) {
            mListType = LIST_TYPE_HIGH_POWER;
            // Default to showing system.
            mShowSystem = true;
            screenTitle = R.string.high_power_apps;
        } else if (className.equals(OverlaySettingsActivity.class.getName())) {
            mListType = LIST_TYPE_OVERLAY;
            screenTitle = R.string.system_alert_window_settings;

            reportIfRestrictedSawIntent(intent);
        } else if (className.equals(WriteSettingsActivity.class.getName())) {
            mListType = LIST_TYPE_WRITE_SETTINGS;
            screenTitle = R.string.write_settings;
        } else if (className.equals(ManageExternalSourcesActivity.class.getName())) {
            mListType = LIST_TYPE_MANAGE_SOURCES;
            screenTitle = R.string.install_other_apps;
        } else if (className.equals(GamesStorageActivity.class.getName())) {
            mListType = LIST_TYPE_GAMES;
            mSortOrder = R.id.sort_order_size;
        } else if (className.equals(Settings.ChangeWifiStateActivity.class.getName())) {
            mListType = LIST_TYPE_WIFI_ACCESS;
            screenTitle = R.string.change_wifi_state_title;
        } else if (className.equals(Settings.ManageExternalStorageActivity.class.getName())) {
            mListType = LIST_MANAGE_EXTERNAL_STORAGE;
            screenTitle = R.string.manage_external_storage_title;
        }  else if (className.equals(Settings.MediaManagementAppsActivity.class.getName())) {
            mListType = LIST_TYPE_MEDIA_MANAGEMENT_APPS;
            screenTitle = R.string.media_management_apps_title;
        } else if (className.equals(Settings.AlarmsAndRemindersActivity.class.getName())) {
            mListType = LIST_TYPE_ALARMS_AND_REMINDERS;
            screenTitle = R.string.alarms_and_reminders_title;
        } else if (className.equals(Settings.NotificationAppListActivity.class.getName())) {
            mListType = LIST_TYPE_NOTIFICATION;
            mUsageStatsManager = IUsageStatsManager.Stub.asInterface(
                    ServiceManager.getService(Context.USAGE_STATS_SERVICE));
            mNotificationBackend = new NotificationBackend();
            mSortOrder = R.id.sort_order_recent_notification;
            screenTitle = R.string.app_notifications_title;
        } else {
            if (screenTitle == -1) {
                screenTitle = R.string.all_apps;
            }
            mListType = LIST_TYPE_MAIN;
        }
        final AppFilterRegistry appFilterRegistry = AppFilterRegistry.getInstance();
        mFilter = appFilterRegistry.get(appFilterRegistry.getDefaultFilterType(mListType));
        mIsPersonalOnly = args != null ? args.getInt(ProfileSelectFragment.EXTRA_PROFILE)
                == ProfileSelectFragment.ProfileType.PERSONAL : false;
        mIsWorkOnly = args != null ? args.getInt(ProfileSelectFragment.EXTRA_PROFILE)
                == ProfileSelectFragment.ProfileType.WORK : false;
        mWorkUserId = args != null ? args.getInt(EXTRA_WORK_ID) : UserHandle.myUserId();
        if (mIsWorkOnly && mWorkUserId == UserHandle.myUserId()) {
            mWorkUserId = Utils.getManagedProfileId(mUserManager, UserHandle.myUserId());
        }

        mExpandSearch = activity.getIntent().getBooleanExtra(EXTRA_EXPAND_SEARCH_VIEW, false);

        if (savedInstanceState != null) {
            mSortOrder = savedInstanceState.getInt(EXTRA_SORT_ORDER, mSortOrder);
            mShowSystem = savedInstanceState.getBoolean(EXTRA_SHOW_SYSTEM, mShowSystem);
            mFilterType =
                    savedInstanceState.getInt(EXTRA_FILTER_TYPE, AppFilterRegistry.FILTER_APPS_ALL);
            mExpandSearch = savedInstanceState.getBoolean(EXTRA_EXPAND_SEARCH_VIEW);
        }

        mInvalidSizeStr = activity.getText(R.string.invalid_size_value);

        mResetAppsHelper = new ResetAppsHelper(activity);

        if (screenTitle > 0) {
            activity.setTitle(screenTitle);
        }
    }

    private void reportIfRestrictedSawIntent(Intent intent) {
        try {
            Uri data = intent.getData();
            if (data == null || !TextUtils.equals("package", data.getScheme())) {
                // Not a restricted intent
                return;
            }
            IBinder activityToken = getActivity().getActivityToken();
            int callingUid = ActivityManager.getService().getLaunchedFromUid(activityToken);
            if (callingUid == -1) {
                Log.w(TAG, "Error obtaining calling uid");
                return;
            }
            IPlatformCompat platformCompat = IPlatformCompat.Stub.asInterface(
                    ServiceManager.getService(Context.PLATFORM_COMPAT_SERVICE));
            if (platformCompat == null) {
                Log.w(TAG, "Error obtaining IPlatformCompat service");
                return;
            }
            platformCompat.reportChangeByUid(CHANGE_RESTRICT_SAW_INTENT, callingUid);
        } catch (RemoteException e) {
            Log.w(TAG, "Error reporting SAW intent restriction", e);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        if (mListType == LIST_TYPE_OVERLAY && !Utils.isSystemAlertWindowEnabled(getContext())) {
            mRootView = inflater.inflate(R.layout.manage_applications_apps_unsupported, null);
            setHasOptionsMenu(false);
            return mRootView;
        }

        mRootView = inflater.inflate(R.layout.manage_applications_apps, null);
        mLoadingContainer = mRootView.findViewById(R.id.loading_container);
        mEmptyView = mRootView.findViewById(android.R.id.empty);
        mRecyclerView = mRootView.findViewById(R.id.apps_list);

        mApplications = new ApplicationsAdapter(mApplicationsState, this, mFilter,
                savedInstanceState);
        if (savedInstanceState != null) {
            mApplications.mHasReceivedLoadEntries =
                    savedInstanceState.getBoolean(EXTRA_HAS_ENTRIES, false);
            mApplications.mHasReceivedBridgeCallback =
                    savedInstanceState.getBoolean(EXTRA_HAS_BRIDGE, false);
        }
        mRecyclerView.setItemAnimator(null);
        mRecyclerView.setLayoutManager(new LinearLayoutManager(
                getContext(), RecyclerView.VERTICAL, false /* reverseLayout */));
        mRecyclerView.setAdapter(mApplications);
        android.util.Log.d("xin.wang", "onCreateView:mRecyclerView.setAdapter-> " + Thread.currentThread().getName());

        // We have to do this now because PreferenceFrameLayout looks at it
        // only when the view is added.
        if (container instanceof PreferenceFrameLayout) {
            ((PreferenceFrameLayout.LayoutParams) mRootView.getLayoutParams()).removeBorders = true;
        }

        createHeader();

        mResetAppsHelper.onRestoreInstanceState(savedInstanceState);

        mAppBarLayout = getActivity().findViewById(R.id.app_bar);
        disableToolBarScrollableBehavior();

        return mRootView;
    }


    @VisibleForTesting
    void createHeader() {
        final Activity activity = getActivity();
        final FrameLayout pinnedHeader = mRootView.findViewById(R.id.pinned_header);
        mSpinnerHeader = activity.getLayoutInflater()
                .inflate(R.layout.manage_apps_filter_spinner, pinnedHeader, false);
        mFilterSpinner = mSpinnerHeader.findViewById(R.id.filter_spinner);
        mFilterAdapter = new FilterSpinnerAdapter(this);
        mFilterSpinner.setAdapter(mFilterAdapter);
        mFilterSpinner.setOnItemSelectedListener(this);
        mFilterSpinner.setVisibility(View.GONE);
        pinnedHeader.addView(mSpinnerHeader, 0);

        final AppFilterRegistry appFilterRegistry = AppFilterRegistry.getInstance();
        final int filterType = appFilterRegistry.getDefaultFilterType(mListType);
        android.util.Log.d("xin.wang", "createHeader:-> filterType -> " + mListType + "<- filterType -> " + filterType); //filterType = 4 -> FILTER_APPS_ALL
        android.util.Log.d("xin.wang", "createHeader:->mFilterOptions.size()-> " + mFilterAdapter.getCount());
        //mFilterAdapter.enableFilter(filterType);    //filterType = 4 -> FILTER_APPS_ALL

        if (mListType == LIST_TYPE_MAIN) {
            if (UserManager.get(getActivity()).getUserProfiles().size() > 1 && !mIsWorkOnly
                    && !mIsPersonalOnly) {
                mFilterAdapter.enableFilter(FILTER_APPS_PERSONAL);
                //mFilterAdapter.enableFilter(FILTER_APPS_WORK);
            }
        }

        if (mListType == LIST_TYPE_NOTIFICATION) {
            mFilterAdapter.enableFilter(FILTER_APPS_RECENT);
            mFilterAdapter.enableFilter(FILTER_APPS_FREQUENT);
            mFilterAdapter.enableFilter(FILTER_APPS_BLOCKED);
            mFilterAdapter.enableFilter(FILTER_APPS_ALL);
        }
        if (mListType == LIST_TYPE_HIGH_POWER) {
            mFilterAdapter.enableFilter(FILTER_APPS_POWER_ALLOWLIST_ALL);
        }

        setCompositeFilter();
    }

    @VisibleForTesting
    @Nullable
    static AppFilter getCompositeFilter(int listType, int storageType, String volumeUuid) {
        AppFilter filter = new VolumeFilter(volumeUuid);
        if (listType == LIST_TYPE_STORAGE) {
            if (storageType == STORAGE_TYPE_DEFAULT) {
                filter = new CompoundFilter(ApplicationsState.FILTER_APPS_EXCEPT_GAMES, filter);
            }
            return filter;
        }
        if (listType == LIST_TYPE_GAMES) {
            return new CompoundFilter(ApplicationsState.FILTER_GAMES, filter);
        }
        return null;
    }

    @Override
    public int getMetricsCategory() {
        switch (mListType) {
            case LIST_TYPE_MAIN:
                return SettingsEnums.MANAGE_APPLICATIONS;
            case LIST_TYPE_NOTIFICATION:
                return SettingsEnums.MANAGE_APPLICATIONS_NOTIFICATIONS;
            case LIST_TYPE_STORAGE:
                return SettingsEnums.APPLICATIONS_STORAGE_APPS;
            case LIST_TYPE_GAMES:
                return SettingsEnums.APPLICATIONS_STORAGE_GAMES;
            case LIST_TYPE_USAGE_ACCESS:
                return SettingsEnums.USAGE_ACCESS;
            case LIST_TYPE_HIGH_POWER:
                return SettingsEnums.APPLICATIONS_HIGH_POWER_APPS;
            case LIST_TYPE_OVERLAY:
                return SettingsEnums.SYSTEM_ALERT_WINDOW_APPS;
            case LIST_TYPE_WRITE_SETTINGS:
                return SettingsEnums.SYSTEM_ALERT_WINDOW_APPS;
            case LIST_TYPE_MANAGE_SOURCES:
                return SettingsEnums.MANAGE_EXTERNAL_SOURCES;
            case LIST_TYPE_WIFI_ACCESS:
                return SettingsEnums.CONFIGURE_WIFI;
            case LIST_MANAGE_EXTERNAL_STORAGE:
                return SettingsEnums.MANAGE_EXTERNAL_STORAGE;
            case LIST_TYPE_ALARMS_AND_REMINDERS:
                return SettingsEnums.ALARMS_AND_REMINDERS;
            case LIST_TYPE_MEDIA_MANAGEMENT_APPS:
                return SettingsEnums.MEDIA_MANAGEMENT_APPS;
            default:
                return SettingsEnums.PAGE_UNKNOWN;
        }
    }

    @Override
    public void onStart() {
        super.onStart();
        updateView();
        if (mApplications != null) {
            mApplications.resume(mSortOrder);
            mApplications.updateLoading();
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mResetAppsHelper.onSaveInstanceState(outState);
        outState.putInt(EXTRA_SORT_ORDER, mSortOrder);
        outState.putInt(EXTRA_FILTER_TYPE, mFilter.getFilterType());
        outState.putBoolean(EXTRA_SHOW_SYSTEM, mShowSystem);
        //add bug 1702049:NullPointerException on a null object reference
        if (mApplications != null) {
            outState.putBoolean(EXTRA_HAS_ENTRIES, mApplications.mHasReceivedLoadEntries);
            outState.putBoolean(EXTRA_HAS_BRIDGE, mApplications.mHasReceivedBridgeCallback);
            if (mSearchView != null) {
                outState.putBoolean(EXTRA_EXPAND_SEARCH_VIEW, !mSearchView.isIconified());
            }
            mApplications.onSaveInstanceState(outState);
        }
    }

    @Override
    public void onStop() {
        super.onStop();
        if (mApplications != null) {
            mApplications.pause();
        }
        mResetAppsHelper.stop();
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();

        if (mApplications != null) {
            mApplications.release();
        }
        mRootView = null;
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == INSTALLED_APP_DETAILS && mCurrentPkgName != null) {
            if (mListType == LIST_TYPE_NOTIFICATION) {
                mApplications.mExtraInfoBridge.forceUpdate(mCurrentPkgName, mCurrentUid);
            } else if (mListType == LIST_TYPE_HIGH_POWER || mListType == LIST_TYPE_OVERLAY
                    || mListType == LIST_TYPE_WRITE_SETTINGS) {
                mApplications.mExtraInfoBridge.forceUpdate(mCurrentPkgName, mCurrentUid);
            } else {
                mApplicationsState.requestSize(mCurrentPkgName, UserHandle.getUserId(mCurrentUid));
            }
        }
    }

    private void setCompositeFilter() {
        AppFilter compositeFilter = getCompositeFilter(mListType, mStorageType, mVolumeUuid);
        if (compositeFilter == null) {
            compositeFilter = mFilter.getFilter();
        }
        if (mIsWorkOnly) {
            compositeFilter = new CompoundFilter(compositeFilter, ApplicationsState.FILTER_WORK);
        }
        if (mIsPersonalOnly) {
            compositeFilter = new CompoundFilter(compositeFilter,
                    ApplicationsState.FILTER_PERSONAL);
        }
        mApplications.setCompositeFilter(compositeFilter);
    }

    // utility method used to start sub activity
    private void startApplicationDetailsActivity() {
        switch (mListType) {
            case LIST_TYPE_NOTIFICATION:
                startAppInfoFragment(AppNotificationSettings.class, R.string.notifications_title);
                break;
            case LIST_TYPE_USAGE_ACCESS:
                startAppInfoFragment(UsageAccessDetails.class, R.string.usage_access);
                break;
            case LIST_TYPE_STORAGE:
                startAppInfoFragment(AppStorageSettings.class, R.string.storage_settings);
                break;
            case LIST_TYPE_HIGH_POWER:
                HighPowerDetail.show(this, mCurrentUid, mCurrentPkgName, INSTALLED_APP_DETAILS);
                break;
            case LIST_TYPE_OVERLAY:
                startAppInfoFragment(DrawOverlayDetails.class, R.string.overlay_settings);
                break;
            case LIST_TYPE_WRITE_SETTINGS:
                startAppInfoFragment(WriteSettingsDetails.class, R.string.write_system_settings);
                break;
            case LIST_TYPE_MANAGE_SOURCES:
                startAppInfoFragment(ExternalSourcesDetails.class, R.string.install_other_apps);
                break;
            case LIST_TYPE_GAMES:
                startAppInfoFragment(AppStorageSettings.class, R.string.game_storage_settings);
                break;
            case LIST_TYPE_WIFI_ACCESS:
                startAppInfoFragment(ChangeWifiStateDetails.class,
                        R.string.change_wifi_state_title);
                break;
            case LIST_MANAGE_EXTERNAL_STORAGE:
                startAppInfoFragment(ManageExternalStorageDetails.class,
                        R.string.manage_external_storage_title);
                break;
            case LIST_TYPE_ALARMS_AND_REMINDERS:
                startAppInfoFragment(AlarmsAndRemindersDetails.class,
                        R.string.alarms_and_reminders_label);
                break;
            case LIST_TYPE_MEDIA_MANAGEMENT_APPS:
                startAppInfoFragment(MediaManagementAppsDetails.class,
                        R.string.media_management_apps_title);
                break;
            // TODO: Figure out if there is a way where we can spin up the profile's settings
            // process ahead of time, to avoid a long load of data when user clicks on a managed
            // app. Maybe when they load the list of apps that contains managed profile apps.
            default:
                startAppInfoFragment(
                        AppInfoDashboardFragment.class, R.string.application_info_label);
                break;
        }
    }

    private void startAppInfoFragment(Class fragment, int titleRes) {
        AppInfoBase.startAppInfoFragment(fragment, titleRes, mCurrentPkgName, mCurrentUid, this,
                INSTALLED_APP_DETAILS, getMetricsCategory());
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        final Activity activity = getActivity();
        if (activity == null) {
            return;
        }
        mOptionsMenu = menu;
        inflater.inflate(R.menu.manage_apps, menu);

        final MenuItem searchMenuItem = menu.findItem(R.id.search_app_list_menu);
        if (searchMenuItem != null) {
            searchMenuItem.setOnActionExpandListener(this);
            mSearchView = (SearchView) searchMenuItem.getActionView();
            mSearchView.setQueryHint(getText(R.string.search_settings));
            mSearchView.setOnQueryTextListener(this);
            if (mExpandSearch) {
                searchMenuItem.expandActionView();
            }
        }

        updateOptionsMenu();
    }

    @Override
    public boolean onMenuItemActionExpand(MenuItem item) {
        // To prevent a large space on tool bar.
        mAppBarLayout.setExpanded(false /*expanded*/, false /*animate*/);
        // To prevent user can expand the collapsing tool bar view.
        ViewCompat.setNestedScrollingEnabled(mRecyclerView, false);
        return true;
    }

    @Override
    public boolean onMenuItemActionCollapse(MenuItem item) {
        // We keep the collapsed status after user cancel the search function.
        mAppBarLayout.setExpanded(false /*expanded*/, false /*animate*/);
        ViewCompat.setNestedScrollingEnabled(mRecyclerView, true);
        return true;
    }

    @Override
    public void onPrepareOptionsMenu(Menu menu) {
        updateOptionsMenu();
    }

    @Override
    public void onDestroyOptionsMenu() {
        mOptionsMenu = null;
    }

    @StringRes
    int getHelpResource() {
        switch (mListType) {
            case LIST_TYPE_NOTIFICATION:
                return R.string.help_uri_notifications;
            case LIST_TYPE_USAGE_ACCESS:
                return R.string.help_url_usage_access;
            case LIST_TYPE_STORAGE:
                return R.string.help_uri_apps_storage;
            case LIST_TYPE_HIGH_POWER:
                return R.string.help_uri_apps_high_power;
            case LIST_TYPE_OVERLAY:
                return R.string.help_uri_apps_overlay;
            case LIST_TYPE_WRITE_SETTINGS:
                return R.string.help_uri_apps_write_settings;
            case LIST_TYPE_MANAGE_SOURCES:
                return R.string.help_uri_apps_manage_sources;
            case LIST_TYPE_GAMES:
                return R.string.help_uri_apps_overlay;
            case LIST_TYPE_WIFI_ACCESS:
                return R.string.help_uri_apps_wifi_access;
            case LIST_MANAGE_EXTERNAL_STORAGE:
                return R.string.help_uri_manage_external_storage;
            case LIST_TYPE_ALARMS_AND_REMINDERS:
                return R.string.help_uri_alarms_and_reminders;
            case LIST_TYPE_MEDIA_MANAGEMENT_APPS:
                return R.string.help_uri_media_management_apps;
            default:
            case LIST_TYPE_MAIN:
                return R.string.help_uri_apps;
        }
    }

    void updateOptionsMenu() {
        if (mOptionsMenu == null) {
            return;
        }
        mOptionsMenu.findItem(R.id.advanced).setVisible(false);

        mOptionsMenu.findItem(R.id.sort_order_alpha).setVisible(mListType == LIST_TYPE_STORAGE
                && mSortOrder != R.id.sort_order_alpha);
        mOptionsMenu.findItem(R.id.sort_order_size).setVisible(mListType == LIST_TYPE_STORAGE
                && mSortOrder != R.id.sort_order_size);

        mOptionsMenu.findItem(R.id.show_system).setVisible(!mShowSystem
                && mListType != LIST_TYPE_HIGH_POWER && wheatherShowSystemOption());
        mOptionsMenu.findItem(R.id.hide_system).setVisible(mShowSystem
                && mListType != LIST_TYPE_HIGH_POWER && wheatherShowSystemOption());
        mOptionsMenu.findItem(R.id.reset_app_preferences).setVisible(mListType == LIST_TYPE_MAIN);

        // Hide notification menu items, because sorting happens when filtering
        mOptionsMenu.findItem(R.id.sort_order_recent_notification).setVisible(false);
        mOptionsMenu.findItem(R.id.sort_order_frequent_notification).setVisible(false);
        final MenuItem searchItem = mOptionsMenu.findItem(MENU_SEARCH);
        if (searchItem != null) {
            searchItem.setVisible(false);
        }
    }

    //hide the optionsmenu of hide-system and show-system in the work interface
    private boolean wheatherShowSystemOption() {
        boolean hasManageProfile = false;
        List users = mUserManager.getUsers();
        android.util.Log.d("xin.wang", "wheatherShowSystemOption: " + users + "<- users.size->" + users.size());
        for(UserInfo user : users){
            if (user.isManagedProfile()) {
                hasManageProfile = true;
                break;
            }
        }
        if (mIsWorkOnly && !mIsPersonalOnly) {
            if (!hasManageProfile) {
                return false;
            }
        }
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int menuId = item.getItemId();
        int i = item.getItemId();
        if (i == R.id.sort_order_alpha || i == R.id.sort_order_size) {
            if (mApplications != null) {
                mApplications.rebuild(menuId);
            }
        } else if (i == R.id.show_system || i == R.id.hide_system) {
            mShowSystem = !mShowSystem;
            mApplications.rebuild();
        } else if (i == R.id.reset_app_preferences) {
            mResetAppsHelper.buildResetDialog();
            return true;
        } else if (i == R.id.advanced) {
            if (mListType == LIST_TYPE_NOTIFICATION) {
                new SubSettingLauncher(getContext())
                        .setDestination(ConfigureNotificationSettings.class.getName())
                        .setTitleRes(R.string.configure_notification_settings)
                        .setSourceMetricsCategory(getMetricsCategory())
                        .setResultListener(this, ADVANCED_SETTINGS)
                        .launch();
            } else {
                Intent intent = new Intent(
                        android.provider.Settings.ACTION_MANAGE_DEFAULT_APPS_SETTINGS);
                startActivityForResult(intent, ADVANCED_SETTINGS);
            }
            return true;
        } else {// Handle the home button
            return false;
        }
        updateOptionsMenu();
        return true;
    }

    @Override
    public void onClick(View view) {
        if (mApplications == null) {
            return;
        }
        final int position = mRecyclerView.getChildAdapterPosition(view);

        if (position == RecyclerView.NO_POSITION) {
            Log.w(TAG, "Cannot find position for child, skipping onClick handling");
            return;
        }
        if (mApplications.getApplicationCount() > position) {
            ApplicationsState.AppEntry entry = mApplications.getAppEntry(position);
            mCurrentPkgName = entry.info.packageName;
            mCurrentUid = entry.info.uid;
            startApplicationDetailsActivity();
            // We disable the scrolling ability in onMenuItemActionCollapse, we should recover it
            // if user selects any app item.
            ViewCompat.setNestedScrollingEnabled(mRecyclerView, true);
        }
    }

    @Override
    public void onItemSelected(AdapterView parent, View view, int position, long id) {
        mFilter = mFilterAdapter.getFilter(position);
        setCompositeFilter();
        mApplications.setFilter(mFilter);

        if (DEBUG) {
            Log.d(TAG, "Selecting filter " + getContext().getText(mFilter.getTitle()));
        }
    }

    @Override
    public void onNothingSelected(AdapterView parent) {
    }

    @Override
    public boolean onQueryTextSubmit(String query) {
        return false;
    }

    @Override
    public boolean onQueryTextChange(String newText) {
        mApplications.filterSearch(newText);
        return false;
    }

    public void updateView() {
        updateOptionsMenu();
        final Activity host = getActivity();
        if (host != null) {
            host.invalidateOptionsMenu();
        }
    }

    public void setHasDisabled(boolean hasDisabledApps) {
        if (mListType != LIST_TYPE_MAIN) {
            return;
        }
        mFilterAdapter.setFilterEnabled(FILTER_APPS_ENABLED, hasDisabledApps);
        mFilterAdapter.setFilterEnabled(FILTER_APPS_DISABLED, hasDisabledApps);
    }

    public void setHasInstant(boolean haveInstantApps) {
        if (LIST_TYPES_WITH_INSTANT.contains(mListType)) {
            mFilterAdapter.setFilterEnabled(FILTER_APPS_INSTANT, haveInstantApps);
        }
    }

    private void disableToolBarScrollableBehavior() {
        final CoordinatorLayout.LayoutParams params =
                (CoordinatorLayout.LayoutParams) mAppBarLayout.getLayoutParams();
        final AppBarLayout.Behavior behavior = new AppBarLayout.Behavior();
        behavior.setDragCallback(
                new AppBarLayout.Behavior.DragCallback() {
                    @Override
                    public boolean canDrag(@NonNull AppBarLayout appBarLayout) {
                        return false;
                    }
                });
        params.setBehavior(behavior);
    }

    static class FilterSpinnerAdapter extends SettingsSpinnerAdapter {

        private final ManageApplications mManageApplications;
        private final Context mContext;

        // Use ArrayAdapter for view logic, but have our own list for managing
        // the options available.
        private final ArrayList mFilterOptions = new ArrayList<>();

        public FilterSpinnerAdapter(ManageApplications manageApplications) {
            super(manageApplications.getContext());
            mContext = manageApplications.getContext();
            mManageApplications = manageApplications;
        }

        public AppFilterItem getFilter(int position) {
            return mFilterOptions.get(position);
        }

        public void setFilterEnabled(@AppFilterRegistry.FilterType int filter, boolean enabled) {
            if (enabled) {
                enableFilter(filter);
            } else {
                disableFilter(filter);
            }
        }

        public void enableFilter(@AppFilterRegistry.FilterType int filterType) {
            final AppFilterItem filter = AppFilterRegistry.getInstance().get(filterType);
            if (mFilterOptions.contains(filter)) {
                return;
            }
            if (DEBUG) {
                Log.d(TAG, "Enabling filter " + mContext.getText(filter.getTitle()));
            }
            mFilterOptions.add(filter);
            Collections.sort(mFilterOptions);
            updateFilterView(mFilterOptions.size() > 1);
            notifyDataSetChanged();
            if (mFilterOptions.size() == 1) {
                if (DEBUG) {
                    Log.d(TAG, "Auto selecting filter " + filter + " " + mContext.getText(
                            filter.getTitle()));
                }
                mManageApplications.mFilterSpinner.setSelection(0);
                mManageApplications.onItemSelected(null, null, 0, 0);
            }
            if (mFilterOptions.size() > 1) {
                final AppFilterItem previousFilter = AppFilterRegistry.getInstance().get(
                        mManageApplications.mFilterType);
                final int index = mFilterOptions.indexOf(previousFilter);
                if (index != -1) {
                    android.util.Log.d("xin.wang", "enableFilter: previousFilter -> " + previousFilter + "<- index -> " + index);
                    mManageApplications.mFilterSpinner.setSelection(index);
                    mManageApplications.onItemSelected(null, null, index, 0);
                }
            }
        }

        public void disableFilter(@AppFilterRegistry.FilterType int filterType) {
            final AppFilterItem filter = AppFilterRegistry.getInstance().get(filterType);
            if (!mFilterOptions.remove(filter)) {
                return;
            }
            if (DEBUG) {
                Log.d(TAG, "Disabling filter " + filter + " " + mContext.getText(
                        filter.getTitle()));
            }
            Collections.sort(mFilterOptions);
            updateFilterView(mFilterOptions.size() > 1);
            notifyDataSetChanged();
            if (mManageApplications.mFilter == filter) {
                if (mFilterOptions.size() > 0) {
                    if (DEBUG) {
                        Log.d(TAG, "Auto selecting filter " + mFilterOptions.get(0)
                                + mContext.getText(mFilterOptions.get(0).getTitle()));
                    }
                    android.util.Log.d("xin.wang", "disableFilter: Auto selecting filter -> " + mContext.getText(mFilterOptions.get(0).getTitle()));
                    mManageApplications.mFilterSpinner.setSelection(0);
                    mManageApplications.onItemSelected(null, null, 0, 0);
                }
            }
        }

        @Override
        public int getCount() {
            android.util.Log.d("xin.wang", "getCount: mFilterOptions.size()->" + mFilterOptions.size());
            return mFilterOptions.size();
        }

        @Override
        public CharSequence getItem(int position) {
            return mContext.getText(mFilterOptions.get(position).getTitle());
        }

        @VisibleForTesting
        void updateFilterView(boolean hasFilter) {
            // If we need to add a floating filter in this screen, we should have an extra top
            // padding for putting floating filter view. Otherwise, the content of list will be
            // overlapped by floating filter.
            if (hasFilter) {
                mManageApplications.mSpinnerHeader.setVisibility(View.VISIBLE);
            } else {
                mManageApplications.mSpinnerHeader.setVisibility(View.GONE);
            }
        }
    }

    static class ApplicationsAdapter extends RecyclerView.Adapter
            implements ApplicationsState.Callbacks, AppStateBaseBridge.Callback {

        private static final String STATE_LAST_SCROLL_INDEX = "state_last_scroll_index";
        private static final int VIEW_TYPE_APP = 0;
        private static final int VIEW_TYPE_EXTRA_VIEW = 1;

        private final ApplicationsState mState;
        private final ApplicationsState.Session mSession;
        private final ManageApplications mManageApplications;
        private final Context mContext;
        private final AppStateBaseBridge mExtraInfoBridge;
        private final LoadingViewController mLoadingViewController;
        private final IconDrawableFactory mIconDrawableFactory;

        private AppFilterItem mAppFilter;
        private ArrayList mEntries;
        private ArrayList mOriginalEntries;
        private boolean mResumed;
        private int mLastSortMode = -1;
        private int mWhichSize = SIZE_TOTAL;
        private AppFilter mCompositeFilter;
        private boolean mHasReceivedLoadEntries;
        private boolean mHasReceivedBridgeCallback;
        private SearchFilter mSearchFilter;
        private PowerAllowlistBackend mBackend;
        private HashSet mSupportAppClone;
        // This is to remember and restore the last scroll position when this
        // fragment is paused. We need this special handling because app entries are added gradually
        // when we rebuild the list after the user made some changes, like uninstalling an app.
        private int mLastIndex = -1;

        @VisibleForTesting
        OnScrollListener mOnScrollListener;
        private RecyclerView mRecyclerView;


        public ApplicationsAdapter(ApplicationsState state, ManageApplications manageApplications,
                AppFilterItem appFilter, Bundle savedInstanceState) {
            setHasStableIds(true);
            mState = state;
            mSession = state.newSession(this);
            mManageApplications = manageApplications;
            mLoadingViewController = new LoadingViewController(
                    mManageApplications.mLoadingContainer,
                    mManageApplications.mRecyclerView,
                    mManageApplications.mEmptyView
            );
            mContext = manageApplications.getActivity();
            mIconDrawableFactory = IconDrawableFactory.newInstance(mContext);
            mAppFilter = appFilter;
            mBackend = PowerAllowlistBackend.getInstance(mContext);
            String[] supportApps = mContext.getResources().getStringArray(com.unisoc.internal.R.array.support_app_clone);
            mSupportAppClone = new HashSet(Arrays.asList(supportApps));
            android.util.Log.d("xin.wang", "ApplicationsAdapter -> mSupportAppClone -> : " + mSupportAppClone);
            if (mManageApplications.mListType == LIST_TYPE_NOTIFICATION) {
                mExtraInfoBridge = new AppStateNotificationBridge(mContext, mState, this,
                        manageApplications.mUsageStatsManager,
                        manageApplications.mUserManager,
                        manageApplications.mNotificationBackend);
            } else if (mManageApplications.mListType == LIST_TYPE_USAGE_ACCESS) {
                mExtraInfoBridge = new AppStateUsageBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_HIGH_POWER) {
                mBackend.refreshList();
                mExtraInfoBridge = new AppStatePowerBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_OVERLAY) {
                mExtraInfoBridge = new AppStateOverlayBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_WRITE_SETTINGS) {
                mExtraInfoBridge = new AppStateWriteSettingsBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_MANAGE_SOURCES) {
                mExtraInfoBridge = new AppStateInstallAppsBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_WIFI_ACCESS) {
                mExtraInfoBridge = new AppStateChangeWifiStateBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_MANAGE_EXTERNAL_STORAGE) {
                mExtraInfoBridge = new AppStateManageExternalStorageBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_ALARMS_AND_REMINDERS) {
                mExtraInfoBridge = new AppStateAlarmsAndRemindersBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_MEDIA_MANAGEMENT_APPS) {
                mExtraInfoBridge = new AppStateMediaManagementAppsBridge(mContext, mState, this);
            } else {
                mExtraInfoBridge = null;
            }
            if (savedInstanceState != null) {
                mLastIndex = savedInstanceState.getInt(STATE_LAST_SCROLL_INDEX);
            }
        }

        @Override
        public void onAttachedToRecyclerView(@NonNull RecyclerView recyclerView) {
            super.onAttachedToRecyclerView(recyclerView);
            mRecyclerView = recyclerView;
            mOnScrollListener = new OnScrollListener(this);
            mRecyclerView.addOnScrollListener(mOnScrollListener);
        }

        @Override
        public void onDetachedFromRecyclerView(@NonNull RecyclerView recyclerView) {
            super.onDetachedFromRecyclerView(recyclerView);
            mRecyclerView.removeOnScrollListener(mOnScrollListener);
            mOnScrollListener = null;
            mRecyclerView = null;
        }

        public void setCompositeFilter(AppFilter compositeFilter) {
            mCompositeFilter = compositeFilter;
            rebuild();
        }

        public void setFilter(AppFilterItem appFilter) {
            mAppFilter = appFilter;

            // Notification filters require resorting the list
            if (mManageApplications.mListType == LIST_TYPE_NOTIFICATION) {
                if (FILTER_APPS_FREQUENT == appFilter.getFilterType()) {
                    rebuild(R.id.sort_order_frequent_notification);
                } else if (FILTER_APPS_RECENT == appFilter.getFilterType()) {
                    rebuild(R.id.sort_order_recent_notification);
                } else if (FILTER_APPS_BLOCKED == appFilter.getFilterType()) {
                    rebuild(R.id.sort_order_alpha);
                } else {
                    rebuild(R.id.sort_order_alpha);
                }
            } else {
                rebuild();
            }
        }

        public void resume(int sort) {
            if (DEBUG) Log.i(TAG, "Resume!  mResumed=" + mResumed);
            if (!mResumed) {
                mResumed = true;
                mSession.onResume();
                mLastSortMode = sort;
                if (mExtraInfoBridge != null) {
                    mExtraInfoBridge.resume();
                }
                rebuild();
            } else {
                rebuild(sort);
            }
        }

        public void pause() {
            if (mResumed) {
                mResumed = false;
                mSession.onPause();
                if (mExtraInfoBridge != null) {
                    mExtraInfoBridge.pause();
                }
            }
        }

        public void onSaveInstanceState(Bundle outState) {
            // Record the current scroll position before pausing.
            final LinearLayoutManager layoutManager =
                    (LinearLayoutManager) mManageApplications.mRecyclerView.getLayoutManager();
            outState.putInt(STATE_LAST_SCROLL_INDEX, layoutManager.findFirstVisibleItemPosition());
        }

        public void release() {
            mSession.onDestroy();
            if (mExtraInfoBridge != null) {
                mExtraInfoBridge.release();
            }
        }

        public void rebuild(int sort) {
            if (sort == mLastSortMode) {
                return;
            }
            mManageApplications.mSortOrder = sort;
            mLastSortMode = sort;
            rebuild();
        }

        @Override
        public ApplicationViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            final View view;
            if (mManageApplications.mListType == LIST_TYPE_NOTIFICATION) {
                view = ApplicationViewHolder.newView(parent, true /* twoTarget */);
            } else {
                view = ApplicationViewHolder.newView(parent, false /* twoTarget */);
            }
            return new ApplicationViewHolder(view);
        }

        @Override
        public int getItemViewType(int position) {
            return VIEW_TYPE_APP;
        }

        public void rebuild() {
            if (!mHasReceivedLoadEntries
                    || (mExtraInfoBridge != null && !mHasReceivedBridgeCallback)) {
                // Don't rebuild the list until all the app entries are loaded.
                if (DEBUG) {
                    Log.d(TAG, "Not rebuilding until all the app entries loaded."
                            + " !mHasReceivedLoadEntries=" + !mHasReceivedLoadEntries
                            + " !mExtraInfoBridgeNull=" + (mExtraInfoBridge != null)
                            + " !mHasReceivedBridgeCallback=" + !mHasReceivedBridgeCallback);
                }
                return;
            }
            ApplicationsState.AppFilter filterObj;
            Comparator comparatorObj;
            boolean emulated = Environment.isExternalStorageEmulated();
            if (emulated) {
                mWhichSize = SIZE_TOTAL;
            } else {
                mWhichSize = SIZE_INTERNAL;
            }
            filterObj = mAppFilter.getFilter();
            if (mCompositeFilter != null) {
                filterObj = new CompoundFilter(filterObj, mCompositeFilter);
            }
            if (!mManageApplications.mShowSystem) {
                if (LIST_TYPES_WITH_INSTANT.contains(mManageApplications.mListType)) {
                    filterObj = new CompoundFilter(filterObj,
                            ApplicationsState.FILTER_DOWNLOADED_AND_LAUNCHER_AND_INSTANT);
                } else {
                    filterObj = new CompoundFilter(filterObj,
                            ApplicationsState.FILTER_DOWNLOADED_AND_LAUNCHER);
                }
            }
            if (mLastSortMode == R.id.sort_order_size) {
                switch (mWhichSize) {
                    case SIZE_INTERNAL:
                        comparatorObj = ApplicationsState.INTERNAL_SIZE_COMPARATOR;
                        break;
                    case SIZE_EXTERNAL:
                        comparatorObj = ApplicationsState.EXTERNAL_SIZE_COMPARATOR;
                        break;
                    default:
                        comparatorObj = ApplicationsState.SIZE_COMPARATOR;
                        break;
                }
            } else if (mLastSortMode == R.id.sort_order_recent_notification) {
                comparatorObj = AppStateNotificationBridge.RECENT_NOTIFICATION_COMPARATOR;
            } else if (mLastSortMode == R.id.sort_order_frequent_notification) {
                comparatorObj = AppStateNotificationBridge.FREQUENCY_NOTIFICATION_COMPARATOR;
            } else {
                comparatorObj = ApplicationsState.ALPHA_COMPARATOR;
            }

            final AppFilter finalFilterObj = new CompoundFilter(filterObj,
                    ApplicationsState.FILTER_NOT_HIDE);
            ThreadUtils.postOnBackgroundThread(() -> {
                mSession.rebuild(finalFilterObj, comparatorObj, false);
            });
        }

        @VisibleForTesting
        void filterSearch(String query) {
            if (mSearchFilter == null) {
                mSearchFilter = new SearchFilter();
            }
            // If we haven't load apps list completely, don't filter anything.
            if (mOriginalEntries == null) {
                Log.w(TAG, "Apps haven't loaded completely yet, so nothing can be filtered");
                return;
            }
            mSearchFilter.filter(query);
        }

        private static boolean packageNameEquals(PackageItemInfo info1, PackageItemInfo info2) {
            if (info1 == null || info2 == null) {
                return false;
            }
            if (info1.packageName == null || info2.packageName == null) {
                return false;
            }
            return info1.packageName.equals(info2.packageName);
        }

        private ArrayList removeDuplicateIgnoringUser(
                ArrayList entries) {
            int size = entries.size();
            // returnList will not have more entries than entries
            ArrayList returnEntries = new ArrayList<>(size);

            // assume appinfo of same package but different users are grouped together
            PackageItemInfo lastInfo = null;
            for (int i = 0; i < size; i++) {
                AppEntry appEntry = entries.get(i);
                PackageItemInfo info = appEntry.info;
                if (!packageNameEquals(lastInfo, appEntry.info)) {
                    returnEntries.add(appEntry);
                }
                lastInfo = info;
            }
            returnEntries.trimToSize();
            return returnEntries;
        }

        @Override
        public void onRebuildComplete(ArrayList entries) {
            //android.util.Log.d("xin.wang", "onRebuildComplete:-> entries-> " + entries);
            android.util.Log.d("xin.wang", "哈哈哈onRebuildComplete:-> entries-> " + entries.size());
            if (DEBUG) {
                Log.d(TAG, "onRebuildComplete size=" + entries.size());
            }
            final int filterType = mAppFilter.getFilterType();
            if (filterType == FILTER_APPS_POWER_ALLOWLIST
                    || filterType == FILTER_APPS_POWER_ALLOWLIST_ALL) {
                entries = removeDuplicateIgnoringUser(entries);
                android.util.Log.d("xin.wang", "onRebuildComplete: entries -> " + entries.size());
            }
            //only show the cloned third-party apps in the interface of work
            if (mManageApplications.mIsWorkOnly && !mManageApplications.mIsPersonalOnly) {
                ArrayList cloneEntries = new ArrayList();
                int cloneNum = 0;
                for (ApplicationsState.AppEntry entry : entries) {
                    cloneNum ++;
                    android.util.Log.d("xin.wang", "哈哈哈onRebuildComplete: cloneNum -> " + cloneNum);
                    int userId = UserHandle.getUserId(entry.info.uid);
                    UserInfo userInfo = mManageApplications.mUserManager.getUserInfo(userId);
                    boolean isManagedProfile = userInfo.isManagedProfile();

                    if (isManagedProfile) {
                        cloneEntries.add(entry);
                        android.util.Log.d("xin.wang", "isManagedProfile: -> cloneEntries " + cloneEntries + "<- cloneEntries.size() -> " + cloneEntries.size());
                        continue;
                    }
                    boolean isCloneProfile = userInfo.isCloneProfile();
                    boolean contains = mSupportAppClone.contains(entry.info.packageName);
                    android.util.Log.d("xin.wang", "onRebuildComplete: isCloneProfile -> " + isCloneProfile + "<- contains -> " + contains);
                    if (mSupportAppClone.contains(entry.info.packageName) && isCloneProfile) {
                        android.util.Log.d("xin.wang", "onRebuildComplete:mSupportAppClone-> " + mSupportAppClone + "<- entry.info.packageName->" + entry.info.packageName);
                        cloneEntries.add(entry);
                        android.util.Log.d("xin.wang", "mSupportAppClone.contains(entry.info.packageName): ->  cloneEntries " + cloneEntries + "<- cloneEntries.size() -> " + cloneEntries.size());
                    }
                }
                mEntries = cloneEntries;
                android.util.Log.d("xin.wang", "onRebuildComplete:cloneEntries ->  " + cloneEntries + "<- cloneEntries.size() ->  " + cloneEntries.size());
                mOriginalEntries = cloneEntries;
            } else {
                mEntries = entries;
                android.util.Log.d("xin.wang", "哈哈哈onRebuildComplete: mEntries -> " + mEntries.size());
                mOriginalEntries = entries;
            }

            notifyDataSetChanged();
            if (getItemCount() == 0) {
                mLoadingViewController.showEmpty(false /* animate */);
            } else {
                mLoadingViewController.showContent(false /* animate */);

                if (mManageApplications.mSearchView != null
                        && mManageApplications.mSearchView.isVisibleToUser()) {
                    final CharSequence query = mManageApplications.mSearchView.getQuery();
                    if (!TextUtils.isEmpty(query)) {
                        filterSearch(query.toString());
                    }
                }
            }
            // Restore the last scroll position if the number of entries added so far is bigger than
            // it.
            if (mLastIndex != -1 && getItemCount() > mLastIndex) {
                mManageApplications.mRecyclerView.getLayoutManager().scrollToPosition(mLastIndex);
                mLastIndex = -1;
            }

            if (mManageApplications.mListType == LIST_TYPE_USAGE_ACCESS) {
                // No enabled or disabled filters for usage access.
                return;
            }

            mManageApplications.setHasDisabled(mState.haveDisabledApps());
            mManageApplications.setHasInstant(mState.haveInstantApps());
        }

        @VisibleForTesting
        void updateLoading() {
            final boolean appLoaded = mHasReceivedLoadEntries && mSession.getAllApps().size() != 0;
            if (appLoaded) {
                mLoadingViewController.showContent(false /* animate */);
            } else {
                mLoadingViewController.showLoadingViewDelayed();
            }
        }

        @Override
        public void onExtraInfoUpdated() {
            mHasReceivedBridgeCallback = true;
            rebuild();
        }

        @Override
        public void onRunningStateChanged(boolean running) {
            mManageApplications.getActivity().setProgressBarIndeterminateVisibility(running);
        }

        @Override
        public void onPackageListChanged() {
            rebuild();
        }

        @Override
        public void onPackageIconChanged() {
            // We ensure icons are loaded when their item is displayed, so
            // don't care about icons loaded in the background.
        }

        @Override
        public void onLoadEntriesCompleted() {
            mHasReceivedLoadEntries = true;
            // We may have been skipping rebuilds until this came in, trigger one now.
            rebuild();
        }

        @Override
        public void onPackageSizeChanged(String packageName) {
            if (mEntries == null) {
                return;
            }
            final int size = mEntries.size();
            for (int i = 0; i < size; i++) {
                final AppEntry entry = mEntries.get(i);
                android.util.Log.d("xin.wang", "onPackageSizeChanged: -> entry -> " + entry.info.packageName + "<- size -> " + size + "<- mEntries -> " + mEntries);
                final ApplicationInfo info = entry.info;
                if (info == null && !TextUtils.equals(packageName, info.packageName)) {
                    continue;
                }
                if (TextUtils.equals(mManageApplications.mCurrentPkgName, info.packageName)) {
                    // We got the size information for the last app the
                    // user viewed, and are sorting by size...  they may
                    // have cleared data, so we immediately want to resort
                    // the list with the new size to reflect it to the user.
                    rebuild();
                    return;
                } else {
                    mOnScrollListener.postNotifyItemChange(i);
                }
            }
        }

        @Override
        public void onLauncherInfoChanged() {
            if (!mManageApplications.mShowSystem) {
                rebuild();
            }
        }

        @Override
        public void onAllSizesComputed() {
            if (mLastSortMode == R.id.sort_order_size) {
                rebuild();
            }
        }

        @Override
        public int getItemCount() {
            if (mEntries == null) {
                return 0;
            }
            android.util.Log.d("xin.wang", "getItemCount: " + mEntries.size());
            return mEntries.size();
        }

        public int getApplicationCount() {
            return mEntries != null ? mEntries.size() : 0;
        }

        public AppEntry getAppEntry(int position) {
            return mEntries.get(position);
        }

        @Override
        public long getItemId(int position) {
            if (position == mEntries.size()) {
                return -1;
            }
            return mEntries.get(position).id;
        }

        public boolean isEnabled(int position) {
            if (getItemViewType(position) == VIEW_TYPE_EXTRA_VIEW
                    || mManageApplications.mListType != LIST_TYPE_HIGH_POWER) {
                return true;
            }
            ApplicationsState.AppEntry entry = mEntries.get(position);

            return !mBackend.isSysAllowlisted(entry.info.packageName)
                    && !mBackend.isDefaultActiveApp(entry.info.packageName);
        }

        @Override
        public void onBindViewHolder(ApplicationViewHolder holder, int position) {
            // Bind the data efficiently with the holder
            final ApplicationsState.AppEntry entry = mEntries.get(position);
            android.util.Log.d("xin.wang", "onBindViewHolder: ApplicationsState.AppEntry -> " + entry + "<- entry -> ");
            synchronized (entry) {
                mState.ensureLabelDescription(entry);
                holder.setTitle(entry.label, entry.labelDescription);
                android.util.Log.d("xin.wang", "onBindViewHolder -> entry.label -> : " + entry.label + "<- entry.labelDescription -> " + entry.labelDescription);
                mState.ensureIcon(entry);
                holder.setIcon(entry.icon);
                updateSummary(holder, entry);
                updateSwitch(holder, entry);
                holder.updateDisableView(entry.info);
            }
            holder.setEnabled(isEnabled(position));

            holder.itemView.setOnClickListener(mManageApplications);
        }

        private void updateSummary(ApplicationViewHolder holder, AppEntry entry) {
            switch (mManageApplications.mListType) {
                case LIST_TYPE_NOTIFICATION:
                    if (entry.extraInfo != null
                            && entry.extraInfo instanceof NotificationsSentState) {
                        holder.setSummary(AppStateNotificationBridge.getSummary(mContext,
                                (NotificationsSentState) entry.extraInfo, mLastSortMode));
                    } else {
                        holder.setSummary(null);
                    }
                    break;
                case LIST_TYPE_USAGE_ACCESS:
                    if (entry.extraInfo != null
                            && entry.extraInfo instanceof PermissionState) {
                        holder.setSummary(
                                (new UsageState((PermissionState) entry.extraInfo)).isPermissible()
                                        ? R.string.app_permission_summary_allowed
                                        : R.string.app_permission_summary_not_allowed);
                    } else {
                        holder.setSummary(null);
                    }
                    break;
                case LIST_TYPE_HIGH_POWER:
                    holder.setSummary(HighPowerDetail.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_OVERLAY:
                    holder.setSummary(DrawOverlayDetails.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_WRITE_SETTINGS:
                    holder.setSummary(WriteSettingsDetails.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_MANAGE_SOURCES:
                    holder.setSummary(ExternalSourcesDetails.getPreferenceSummary(mContext, entry));
                    break;
                case LIST_TYPE_WIFI_ACCESS:
                    holder.setSummary(ChangeWifiStateDetails.getSummary(mContext, entry));
                    break;
                case LIST_MANAGE_EXTERNAL_STORAGE:
                    holder.setSummary(ManageExternalStorageDetails.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_ALARMS_AND_REMINDERS:
                    holder.setSummary(AlarmsAndRemindersDetails.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_MEDIA_MANAGEMENT_APPS:
                    holder.setSummary(MediaManagementAppsDetails.getSummary(mContext, entry));
                    break;
                default:
                    holder.updateSizeText(entry, mManageApplications.mInvalidSizeStr, mWhichSize);
                    break;
            }
        }

        private void updateSwitch(ApplicationViewHolder holder, AppEntry entry) {
            switch (mManageApplications.mListType) {
                case LIST_TYPE_NOTIFICATION:
                    holder.updateSwitch(((AppStateNotificationBridge) mExtraInfoBridge)
                                    .getSwitchOnCheckedListener(entry),
                            AppStateNotificationBridge.enableSwitch(entry),
                            AppStateNotificationBridge.checkSwitch(entry));
                    if (entry.extraInfo != null
                            && entry.extraInfo instanceof NotificationsSentState) {
                        holder.setSummary(AppStateNotificationBridge.getSummary(mContext,
                                (NotificationsSentState) entry.extraInfo, mLastSortMode));
                    } else {
                        holder.setSummary(null);
                    }
                    break;
            }
        }

        public static class OnScrollListener extends RecyclerView.OnScrollListener {
            private int mScrollState = SCROLL_STATE_IDLE;
            private boolean mDelayNotifyDataChange;
            private ApplicationsAdapter mAdapter;

            public OnScrollListener(ApplicationsAdapter adapter) {
                mAdapter = adapter;
            }

            @Override
            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
                mScrollState = newState;
                if (mScrollState == SCROLL_STATE_IDLE && mDelayNotifyDataChange) {
                    mDelayNotifyDataChange = false;
                    mAdapter.notifyDataSetChanged();
                }
            }

            public void postNotifyItemChange(int index) {
                if (mScrollState == SCROLL_STATE_IDLE) {
                    mAdapter.notifyItemChanged(index);
                } else {
                    mDelayNotifyDataChange = true;
                }
            }
        }

        /**
         * An array filter that constrains the content of the array adapter with a substring.
         * Item that does not contains the specified substring will be removed from the list.

         */
        private class SearchFilter extends Filter {
            @WorkerThread
            @Override
            protected FilterResults performFiltering(CharSequence query) {
                final ArrayList matchedEntries;
                if (TextUtils.isEmpty(query)) {
                    matchedEntries = mOriginalEntries;
                } else {
                    matchedEntries = new ArrayList<>();
                    for (ApplicationsState.AppEntry entry : mOriginalEntries) {
                        if (entry.label.toLowerCase().contains(query.toString().toLowerCase())) {
                            matchedEntries.add(entry);
                        }
                    }
                }
                final FilterResults results = new FilterResults();
                results.values = matchedEntries;
                results.count = matchedEntries.size();
                return results;
            }

            @Override
            protected void publishResults(CharSequence constraint, FilterResults results) {
                mEntries = (ArrayList) results.values;
                notifyDataSetChanged();
            }
        }
    }
}
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/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings.applications.manageapplications;

import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE;

import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_ALL;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_BLOCKED;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_DISABLED;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_ENABLED;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_FREQUENT;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_INSTANT;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_PERSONAL;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_POWER_ALLOWLIST;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_POWER_ALLOWLIST_ALL;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_RECENT;
import static com.android.settings.applications.manageapplications.AppFilterRegistry.FILTER_APPS_WORK;
import static com.android.settings.search.actionbar.SearchMenuController.MENU_SEARCH;

import android.annotation.Nullable;
import android.annotation.StringRes;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.settings.SettingsEnums;
import android.app.usage.IUsageStatsManager;
import android.compat.annotation.ChangeId;
import android.compat.annotation.LoggingOnly;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageItemInfo;
import android.content.pm.UserInfo;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.os.UserManager;
import android.preference.PreferenceFrameLayout;
import android.text.TextUtils;
import android.util.ArraySet;
import android.util.IconDrawableFactory;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.Filter;
import android.widget.FrameLayout;
import android.widget.SearchView;
import android.widget.Spinner;

import androidx.annotation.NonNull;
import androidx.annotation.VisibleForTesting;
import androidx.annotation.WorkerThread;
import androidx.coordinatorlayout.widget.CoordinatorLayout;
import androidx.core.view.ViewCompat;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import com.android.internal.compat.IPlatformCompat;
import com.android.settings.R;
import com.android.settings.Settings;
import com.android.settings.Settings.GamesStorageActivity;
import com.android.settings.Settings.HighPowerApplicationsActivity;
import com.android.settings.Settings.ManageExternalSourcesActivity;
import com.android.settings.Settings.OverlaySettingsActivity;
import com.android.settings.Settings.StorageUseActivity;
import com.android.settings.Settings.UsageAccessSettingsActivity;
import com.android.settings.Settings.WriteSettingsActivity;
import com.android.settings.SettingsActivity;
import com.android.settings.Utils;
import com.android.settings.applications.AppInfoBase;
import com.android.settings.applications.AppStateAlarmsAndRemindersBridge;
import com.android.settings.applications.AppStateAppOpsBridge.PermissionState;
import com.android.settings.applications.AppStateBaseBridge;
import com.android.settings.applications.AppStateInstallAppsBridge;
import com.android.settings.applications.AppStateManageExternalStorageBridge;
import com.android.settings.applications.AppStateMediaManagementAppsBridge;
import com.android.settings.applications.AppStateNotificationBridge;
import com.android.settings.applications.AppStateNotificationBridge.NotificationsSentState;
import com.android.settings.applications.AppStateOverlayBridge;
import com.android.settings.applications.AppStatePowerBridge;
import com.android.settings.applications.AppStateUsageBridge;
import com.android.settings.applications.AppStateUsageBridge.UsageState;
import com.android.settings.applications.AppStateWriteSettingsBridge;
import com.android.settings.applications.AppStorageSettings;
import com.android.settings.applications.UsageAccessDetails;
import com.android.settings.applications.appinfo.AlarmsAndRemindersDetails;
import com.android.settings.applications.appinfo.AppInfoDashboardFragment;
import com.android.settings.applications.appinfo.DrawOverlayDetails;
import com.android.settings.applications.appinfo.ExternalSourcesDetails;
import com.android.settings.applications.appinfo.ManageExternalStorageDetails;
import com.android.settings.applications.appinfo.MediaManagementAppsDetails;
import com.android.settings.applications.appinfo.WriteSettingsDetails;
import com.android.settings.core.InstrumentedFragment;
import com.android.settings.core.SubSettingLauncher;
import com.android.settings.dashboard.profileselector.ProfileSelectFragment;
import com.android.settings.fuelgauge.HighPowerDetail;
import com.android.settings.notification.ConfigureNotificationSettings;
import com.android.settings.notification.NotificationBackend;
import com.android.settings.notification.app.AppNotificationSettings;
import com.android.settings.widget.LoadingViewController;
import com.android.settings.wifi.AppStateChangeWifiStateBridge;
import com.android.settings.wifi.ChangeWifiStateDetails;
import com.android.settingslib.applications.ApplicationsState;
import com.android.settingslib.applications.ApplicationsState.AppEntry;
import com.android.settingslib.applications.ApplicationsState.AppFilter;
import com.android.settingslib.applications.ApplicationsState.CompoundFilter;
import com.android.settingslib.applications.ApplicationsState.VolumeFilter;
import com.android.settingslib.applications.AppUtils;
import com.android.settingslib.fuelgauge.PowerAllowlistBackend;
import com.android.settingslib.utils.ThreadUtils;
import com.android.settingslib.widget.settingsspinner.SettingsSpinnerAdapter;

import com.google.android.material.appbar.AppBarLayout;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Set;
import java.util.HashSet;

/**
 * Activity to pick an application that will be used to display installation information and
 * options to uninstall/delete user data for system applications. This activity
 * can be launched through Settings or via the ACTION_MANAGE_PACKAGE_STORAGE
 * intent.
 */
public class ManageApplications extends InstrumentedFragment
        implements View.OnClickListener, OnItemSelectedListener, SearchView.OnQueryTextListener,
        MenuItem.OnActionExpandListener {

    static final String TAG = "ManageApplications";
    static final boolean DEBUG = Build.IS_DEBUGGABLE;

    // Intent extras.
    public static final String EXTRA_CLASSNAME = "classname";
    // Used for storage only.
    public static final String EXTRA_VOLUME_UUID = "volumeUuid";
    public static final String EXTRA_VOLUME_NAME = "volumeName";
    public static final String EXTRA_STORAGE_TYPE = "storageType";
    public static final String EXTRA_WORK_ID = "workId";

    private static final String EXTRA_SORT_ORDER = "sortOrder";
    private static final String EXTRA_SHOW_SYSTEM = "showSystem";
    private static final String EXTRA_HAS_ENTRIES = "hasEntries";
    private static final String EXTRA_HAS_BRIDGE = "hasBridge";
    private static final String EXTRA_FILTER_TYPE = "filterType";
    @VisibleForTesting
    static final String EXTRA_EXPAND_SEARCH_VIEW = "expand_search_view";

    // attributes used as keys when passing values to AppInfoDashboardFragment activity
    public static final String APP_CHG = "chg";

    // constant value that can be used to check return code from sub activity.
    private static final int INSTALLED_APP_DETAILS = 1;
    private static final int ADVANCED_SETTINGS = 2;

    public static final int SIZE_TOTAL = 0;
    public static final int SIZE_INTERNAL = 1;
    public static final int SIZE_EXTERNAL = 2;

    // Storage types. Used to determine what the extra item in the list of preferences is.
    public static final int STORAGE_TYPE_DEFAULT = 0; // Show all apps that are not categorized.
    public static final int STORAGE_TYPE_LEGACY = 1;  // Show apps even if they can be categorized.

    /**
     * Intents with action {@code android.settings.MANAGE_APP_OVERLAY_PERMISSION}
     * and data URI scheme {@code package} don't go to the app-specific screen for managing the
     * permission anymore. Instead, they redirect to this screen for managing all the apps that have
     * requested such permission.
     */
    @ChangeId
    @LoggingOnly
    private static final long CHANGE_RESTRICT_SAW_INTENT = 135920175L;

    // sort order
    @VisibleForTesting
    int mSortOrder = R.id.sort_order_alpha;

    // whether showing system apps.
    private boolean mShowSystem;

    private ApplicationsState mApplicationsState;

    public int mListType;
    private AppFilterItem mFilter;
    private ApplicationsAdapter mApplications;

    private View mLoadingContainer;
    private SearchView mSearchView;

    // Size resource used for packages whose size computation failed for some reason
    CharSequence mInvalidSizeStr;

    private String mCurrentPkgName;
    private int mCurrentUid;

    private Menu mOptionsMenu;

    public static final int LIST_TYPE_MAIN = 0;
    public static final int LIST_TYPE_NOTIFICATION = 1;
    public static final int LIST_TYPE_STORAGE = 3;
    public static final int LIST_TYPE_USAGE_ACCESS = 4;
    public static final int LIST_TYPE_HIGH_POWER = 5;
    public static final int LIST_TYPE_OVERLAY = 6;
    public static final int LIST_TYPE_WRITE_SETTINGS = 7;
    public static final int LIST_TYPE_MANAGE_SOURCES = 8;
    public static final int LIST_TYPE_GAMES = 9;
    public static final int LIST_TYPE_WIFI_ACCESS = 10;
    public static final int LIST_MANAGE_EXTERNAL_STORAGE = 11;
    public static final int LIST_TYPE_ALARMS_AND_REMINDERS = 12;
    public static final int LIST_TYPE_MEDIA_MANAGEMENT_APPS = 13;

    // List types that should show instant apps.
    public static final Set<Integer> LIST_TYPES_WITH_INSTANT = new ArraySet<>(Arrays.asList(
            LIST_TYPE_MAIN,
            LIST_TYPE_STORAGE));

    @VisibleForTesting
    View mSpinnerHeader;
    @VisibleForTesting
    FilterSpinnerAdapter mFilterAdapter;
    @VisibleForTesting
    RecyclerView mRecyclerView;
    // Whether or not search view is expanded.
    @VisibleForTesting
    boolean mExpandSearch;

    private View mRootView;
    private Spinner mFilterSpinner;
    private IUsageStatsManager mUsageStatsManager;
    private UserManager mUserManager;
    private NotificationBackend mNotificationBackend;
    private ResetAppsHelper mResetAppsHelper;
    private String mVolumeUuid;
    private int mStorageType;
    private boolean mIsWorkOnly;
    private int mWorkUserId;
    private boolean mIsPersonalOnly;
    private View mEmptyView;
    private int mFilterType;
    private AppBarLayout mAppBarLayout;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setHasOptionsMenu(true);
        final Activity activity = getActivity();
        mUserManager = activity.getSystemService(UserManager.class);
        mApplicationsState = ApplicationsState.getInstance(activity.getApplication());

        Intent intent = activity.getIntent();
        Bundle args = getArguments();
        int screenTitle = intent.getIntExtra(
                SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE_RESID, R.string.all_apps);
        String className = args != null ? args.getString(EXTRA_CLASSNAME) : null;
        if (className == null) {
            className = intent.getComponent().getClassName();
        }
        if (className.equals(StorageUseActivity.class.getName())) {
            if (args != null && args.containsKey(EXTRA_VOLUME_UUID)) {
                mVolumeUuid = args.getString(EXTRA_VOLUME_UUID);
                mStorageType = args.getInt(EXTRA_STORAGE_TYPE, STORAGE_TYPE_DEFAULT);
                mListType = LIST_TYPE_STORAGE;
            } else {
                // No volume selected, display a normal list, sorted by size.
                mListType = LIST_TYPE_MAIN;
            }
            mSortOrder = R.id.sort_order_size;
        } else if (className.equals(UsageAccessSettingsActivity.class.getName())) {
            mListType = LIST_TYPE_USAGE_ACCESS;
            screenTitle = R.string.usage_access;
        } else if (className.equals(HighPowerApplicationsActivity.class.getName())) {
            mListType = LIST_TYPE_HIGH_POWER;
            // Default to showing system.
            mShowSystem = true;
            screenTitle = R.string.high_power_apps;
        } else if (className.equals(OverlaySettingsActivity.class.getName())) {
            mListType = LIST_TYPE_OVERLAY;
            screenTitle = R.string.system_alert_window_settings;

            reportIfRestrictedSawIntent(intent);
        } else if (className.equals(WriteSettingsActivity.class.getName())) {
            mListType = LIST_TYPE_WRITE_SETTINGS;
            screenTitle = R.string.write_settings;
        } else if (className.equals(ManageExternalSourcesActivity.class.getName())) {
            mListType = LIST_TYPE_MANAGE_SOURCES;
            screenTitle = R.string.install_other_apps;
        } else if (className.equals(GamesStorageActivity.class.getName())) {
            mListType = LIST_TYPE_GAMES;
            mSortOrder = R.id.sort_order_size;
        } else if (className.equals(Settings.ChangeWifiStateActivity.class.getName())) {
            mListType = LIST_TYPE_WIFI_ACCESS;
            screenTitle = R.string.change_wifi_state_title;
        } else if (className.equals(Settings.ManageExternalStorageActivity.class.getName())) {
            mListType = LIST_MANAGE_EXTERNAL_STORAGE;
            screenTitle = R.string.manage_external_storage_title;
        }  else if (className.equals(Settings.MediaManagementAppsActivity.class.getName())) {
            mListType = LIST_TYPE_MEDIA_MANAGEMENT_APPS;
            screenTitle = R.string.media_management_apps_title;
        } else if (className.equals(Settings.AlarmsAndRemindersActivity.class.getName())) {
            mListType = LIST_TYPE_ALARMS_AND_REMINDERS;
            screenTitle = R.string.alarms_and_reminders_title;
        } else if (className.equals(Settings.NotificationAppListActivity.class.getName())) {
            mListType = LIST_TYPE_NOTIFICATION;
            mUsageStatsManager = IUsageStatsManager.Stub.asInterface(
                    ServiceManager.getService(Context.USAGE_STATS_SERVICE));
            mNotificationBackend = new NotificationBackend();
            mSortOrder = R.id.sort_order_recent_notification;
            screenTitle = R.string.app_notifications_title;
        } else {
            if (screenTitle == -1) {
                screenTitle = R.string.all_apps;
            }
            mListType = LIST_TYPE_MAIN;
        }
        final AppFilterRegistry appFilterRegistry = AppFilterRegistry.getInstance();
        mFilter = appFilterRegistry.get(appFilterRegistry.getDefaultFilterType(mListType));
        mIsPersonalOnly = args != null ? args.getInt(ProfileSelectFragment.EXTRA_PROFILE)
                == ProfileSelectFragment.ProfileType.PERSONAL : false;
        mIsWorkOnly = args != null ? args.getInt(ProfileSelectFragment.EXTRA_PROFILE)
                == ProfileSelectFragment.ProfileType.WORK : false;
        mWorkUserId = args != null ? args.getInt(EXTRA_WORK_ID) : UserHandle.myUserId();
        if (mIsWorkOnly && mWorkUserId == UserHandle.myUserId()) {
            mWorkUserId = Utils.getManagedProfileId(mUserManager, UserHandle.myUserId());
        }

        mExpandSearch = activity.getIntent().getBooleanExtra(EXTRA_EXPAND_SEARCH_VIEW, false);

        if (savedInstanceState != null) {
            mSortOrder = savedInstanceState.getInt(EXTRA_SORT_ORDER, mSortOrder);
            mShowSystem = savedInstanceState.getBoolean(EXTRA_SHOW_SYSTEM, mShowSystem);
            mFilterType =
                    savedInstanceState.getInt(EXTRA_FILTER_TYPE, AppFilterRegistry.FILTER_APPS_ALL);
            mExpandSearch = savedInstanceState.getBoolean(EXTRA_EXPAND_SEARCH_VIEW);
        }

        mInvalidSizeStr = activity.getText(R.string.invalid_size_value);

        mResetAppsHelper = new ResetAppsHelper(activity);

        if (screenTitle > 0) {
            activity.setTitle(screenTitle);
        }
    }

    private void reportIfRestrictedSawIntent(Intent intent) {
        try {
            Uri data = intent.getData();
            if (data == null || !TextUtils.equals("package", data.getScheme())) {
                // Not a restricted intent
                return;
            }
            IBinder activityToken = getActivity().getActivityToken();
            int callingUid = ActivityManager.getService().getLaunchedFromUid(activityToken);
            if (callingUid == -1) {
                Log.w(TAG, "Error obtaining calling uid");
                return;
            }
            IPlatformCompat platformCompat = IPlatformCompat.Stub.asInterface(
                    ServiceManager.getService(Context.PLATFORM_COMPAT_SERVICE));
            if (platformCompat == null) {
                Log.w(TAG, "Error obtaining IPlatformCompat service");
                return;
            }
            platformCompat.reportChangeByUid(CHANGE_RESTRICT_SAW_INTENT, callingUid);
        } catch (RemoteException e) {
            Log.w(TAG, "Error reporting SAW intent restriction", e);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        if (mListType == LIST_TYPE_OVERLAY && !Utils.isSystemAlertWindowEnabled(getContext())) {
            mRootView = inflater.inflate(R.layout.manage_applications_apps_unsupported, null);
            setHasOptionsMenu(false);
            return mRootView;
        }

        mRootView = inflater.inflate(R.layout.manage_applications_apps, null);
        mLoadingContainer = mRootView.findViewById(R.id.loading_container);
        mEmptyView = mRootView.findViewById(android.R.id.empty);
        mRecyclerView = mRootView.findViewById(R.id.apps_list);

        mApplications = new ApplicationsAdapter(mApplicationsState, this, mFilter,
                savedInstanceState);
        if (savedInstanceState != null) {
            mApplications.mHasReceivedLoadEntries =
                    savedInstanceState.getBoolean(EXTRA_HAS_ENTRIES, false);
            mApplications.mHasReceivedBridgeCallback =
                    savedInstanceState.getBoolean(EXTRA_HAS_BRIDGE, false);
        }
        mRecyclerView.setItemAnimator(null);
        mRecyclerView.setLayoutManager(new LinearLayoutManager(
                getContext(), RecyclerView.VERTICAL, false /* reverseLayout */));
        mRecyclerView.setAdapter(mApplications);
        android.util.Log.d("xin.wang", "onCreateView:mRecyclerView.setAdapter-> " + Thread.currentThread().getName());

        // We have to do this now because PreferenceFrameLayout looks at it
        // only when the view is added.
        if (container instanceof PreferenceFrameLayout) {
            ((PreferenceFrameLayout.LayoutParams) mRootView.getLayoutParams()).removeBorders = true;
        }

        createHeader();

        mResetAppsHelper.onRestoreInstanceState(savedInstanceState);

        mAppBarLayout = getActivity().findViewById(R.id.app_bar);
        disableToolBarScrollableBehavior();

        return mRootView;
    }


    @VisibleForTesting
    void createHeader() {
        final Activity activity = getActivity();
        final FrameLayout pinnedHeader = mRootView.findViewById(R.id.pinned_header);
        mSpinnerHeader = activity.getLayoutInflater()
                .inflate(R.layout.manage_apps_filter_spinner, pinnedHeader, false);
        mFilterSpinner = mSpinnerHeader.findViewById(R.id.filter_spinner);
        mFilterAdapter = new FilterSpinnerAdapter(this);
        mFilterSpinner.setAdapter(mFilterAdapter);
        mFilterSpinner.setOnItemSelectedListener(this);
        mFilterSpinner.setVisibility(View.GONE);
        pinnedHeader.addView(mSpinnerHeader, 0);

        final AppFilterRegistry appFilterRegistry = AppFilterRegistry.getInstance();
        final int filterType = appFilterRegistry.getDefaultFilterType(mListType);
        android.util.Log.d("xin.wang", "createHeader:-> filterType -> " + mListType + "<- filterType -> " + filterType); //filterType = 4 -> FILTER_APPS_ALL
        android.util.Log.d("xin.wang", "createHeader:->mFilterOptions.size()-> " + mFilterAdapter.getCount());
        //mFilterAdapter.enableFilter(filterType);    //filterType = 4 -> FILTER_APPS_ALL

        if (mListType == LIST_TYPE_MAIN) {
            if (UserManager.get(getActivity()).getUserProfiles().size() > 1 && !mIsWorkOnly
                    && !mIsPersonalOnly) {
                mFilterAdapter.enableFilter(FILTER_APPS_PERSONAL);
                //mFilterAdapter.enableFilter(FILTER_APPS_WORK);
            }
        }

        if (mListType == LIST_TYPE_NOTIFICATION) {
            mFilterAdapter.enableFilter(FILTER_APPS_RECENT);
            mFilterAdapter.enableFilter(FILTER_APPS_FREQUENT);
            mFilterAdapter.enableFilter(FILTER_APPS_BLOCKED);
            mFilterAdapter.enableFilter(FILTER_APPS_ALL);
        }
        if (mListType == LIST_TYPE_HIGH_POWER) {
            mFilterAdapter.enableFilter(FILTER_APPS_POWER_ALLOWLIST_ALL);
        }

        setCompositeFilter();
    }

    @VisibleForTesting
    @Nullable
    static AppFilter getCompositeFilter(int listType, int storageType, String volumeUuid) {
        AppFilter filter = new VolumeFilter(volumeUuid);
        if (listType == LIST_TYPE_STORAGE) {
            if (storageType == STORAGE_TYPE_DEFAULT) {
                filter = new CompoundFilter(ApplicationsState.FILTER_APPS_EXCEPT_GAMES, filter);
            }
            return filter;
        }
        if (listType == LIST_TYPE_GAMES) {
            return new CompoundFilter(ApplicationsState.FILTER_GAMES, filter);
        }
        return null;
    }

    @Override
    public int getMetricsCategory() {
        switch (mListType) {
            case LIST_TYPE_MAIN:
                return SettingsEnums.MANAGE_APPLICATIONS;
            case LIST_TYPE_NOTIFICATION:
                return SettingsEnums.MANAGE_APPLICATIONS_NOTIFICATIONS;
            case LIST_TYPE_STORAGE:
                return SettingsEnums.APPLICATIONS_STORAGE_APPS;
            case LIST_TYPE_GAMES:
                return SettingsEnums.APPLICATIONS_STORAGE_GAMES;
            case LIST_TYPE_USAGE_ACCESS:
                return SettingsEnums.USAGE_ACCESS;
            case LIST_TYPE_HIGH_POWER:
                return SettingsEnums.APPLICATIONS_HIGH_POWER_APPS;
            case LIST_TYPE_OVERLAY:
                return SettingsEnums.SYSTEM_ALERT_WINDOW_APPS;
            case LIST_TYPE_WRITE_SETTINGS:
                return SettingsEnums.SYSTEM_ALERT_WINDOW_APPS;
            case LIST_TYPE_MANAGE_SOURCES:
                return SettingsEnums.MANAGE_EXTERNAL_SOURCES;
            case LIST_TYPE_WIFI_ACCESS:
                return SettingsEnums.CONFIGURE_WIFI;
            case LIST_MANAGE_EXTERNAL_STORAGE:
                return SettingsEnums.MANAGE_EXTERNAL_STORAGE;
            case LIST_TYPE_ALARMS_AND_REMINDERS:
                return SettingsEnums.ALARMS_AND_REMINDERS;
            case LIST_TYPE_MEDIA_MANAGEMENT_APPS:
                return SettingsEnums.MEDIA_MANAGEMENT_APPS;
            default:
                return SettingsEnums.PAGE_UNKNOWN;
        }
    }

    @Override
    public void onStart() {
        super.onStart();
        updateView();
        if (mApplications != null) {
            mApplications.resume(mSortOrder);
            mApplications.updateLoading();
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mResetAppsHelper.onSaveInstanceState(outState);
        outState.putInt(EXTRA_SORT_ORDER, mSortOrder);
        outState.putInt(EXTRA_FILTER_TYPE, mFilter.getFilterType());
        outState.putBoolean(EXTRA_SHOW_SYSTEM, mShowSystem);
        //add bug 1702049:NullPointerException on a null object reference
        if (mApplications != null) {
            outState.putBoolean(EXTRA_HAS_ENTRIES, mApplications.mHasReceivedLoadEntries);
            outState.putBoolean(EXTRA_HAS_BRIDGE, mApplications.mHasReceivedBridgeCallback);
            if (mSearchView != null) {
                outState.putBoolean(EXTRA_EXPAND_SEARCH_VIEW, !mSearchView.isIconified());
            }
            mApplications.onSaveInstanceState(outState);
        }
    }

    @Override
    public void onStop() {
        super.onStop();
        if (mApplications != null) {
            mApplications.pause();
        }
        mResetAppsHelper.stop();
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();

        if (mApplications != null) {
            mApplications.release();
        }
        mRootView = null;
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == INSTALLED_APP_DETAILS && mCurrentPkgName != null) {
            if (mListType == LIST_TYPE_NOTIFICATION) {
                mApplications.mExtraInfoBridge.forceUpdate(mCurrentPkgName, mCurrentUid);
            } else if (mListType == LIST_TYPE_HIGH_POWER || mListType == LIST_TYPE_OVERLAY
                    || mListType == LIST_TYPE_WRITE_SETTINGS) {
                mApplications.mExtraInfoBridge.forceUpdate(mCurrentPkgName, mCurrentUid);
            } else {
                mApplicationsState.requestSize(mCurrentPkgName, UserHandle.getUserId(mCurrentUid));
            }
        }
    }

    private void setCompositeFilter() {
        AppFilter compositeFilter = getCompositeFilter(mListType, mStorageType, mVolumeUuid);
        if (compositeFilter == null) {
            compositeFilter = mFilter.getFilter();
        }
        if (mIsWorkOnly) {
            compositeFilter = new CompoundFilter(compositeFilter, ApplicationsState.FILTER_WORK);
        }
        if (mIsPersonalOnly) {
            compositeFilter = new CompoundFilter(compositeFilter,
                    ApplicationsState.FILTER_PERSONAL);
        }
        mApplications.setCompositeFilter(compositeFilter);
    }

    // utility method used to start sub activity
    private void startApplicationDetailsActivity() {
        switch (mListType) {
            case LIST_TYPE_NOTIFICATION:
                startAppInfoFragment(AppNotificationSettings.class, R.string.notifications_title);
                break;
            case LIST_TYPE_USAGE_ACCESS:
                startAppInfoFragment(UsageAccessDetails.class, R.string.usage_access);
                break;
            case LIST_TYPE_STORAGE:
                startAppInfoFragment(AppStorageSettings.class, R.string.storage_settings);
                break;
            case LIST_TYPE_HIGH_POWER:
                HighPowerDetail.show(this, mCurrentUid, mCurrentPkgName, INSTALLED_APP_DETAILS);
                break;
            case LIST_TYPE_OVERLAY:
                startAppInfoFragment(DrawOverlayDetails.class, R.string.overlay_settings);
                break;
            case LIST_TYPE_WRITE_SETTINGS:
                startAppInfoFragment(WriteSettingsDetails.class, R.string.write_system_settings);
                break;
            case LIST_TYPE_MANAGE_SOURCES:
                startAppInfoFragment(ExternalSourcesDetails.class, R.string.install_other_apps);
                break;
            case LIST_TYPE_GAMES:
                startAppInfoFragment(AppStorageSettings.class, R.string.game_storage_settings);
                break;
            case LIST_TYPE_WIFI_ACCESS:
                startAppInfoFragment(ChangeWifiStateDetails.class,
                        R.string.change_wifi_state_title);
                break;
            case LIST_MANAGE_EXTERNAL_STORAGE:
                startAppInfoFragment(ManageExternalStorageDetails.class,
                        R.string.manage_external_storage_title);
                break;
            case LIST_TYPE_ALARMS_AND_REMINDERS:
                startAppInfoFragment(AlarmsAndRemindersDetails.class,
                        R.string.alarms_and_reminders_label);
                break;
            case LIST_TYPE_MEDIA_MANAGEMENT_APPS:
                startAppInfoFragment(MediaManagementAppsDetails.class,
                        R.string.media_management_apps_title);
                break;
            // TODO: Figure out if there is a way where we can spin up the profile's settings
            // process ahead of time, to avoid a long load of data when user clicks on a managed
            // app. Maybe when they load the list of apps that contains managed profile apps.
            default:
                startAppInfoFragment(
                        AppInfoDashboardFragment.class, R.string.application_info_label);
                break;
        }
    }

    private void startAppInfoFragment(Class<?> fragment, int titleRes) {
        AppInfoBase.startAppInfoFragment(fragment, titleRes, mCurrentPkgName, mCurrentUid, this,
                INSTALLED_APP_DETAILS, getMetricsCategory());
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        final Activity activity = getActivity();
        if (activity == null) {
            return;
        }
        mOptionsMenu = menu;
        inflater.inflate(R.menu.manage_apps, menu);

        final MenuItem searchMenuItem = menu.findItem(R.id.search_app_list_menu);
        if (searchMenuItem != null) {
            searchMenuItem.setOnActionExpandListener(this);
            mSearchView = (SearchView) searchMenuItem.getActionView();
            mSearchView.setQueryHint(getText(R.string.search_settings));
            mSearchView.setOnQueryTextListener(this);
            if (mExpandSearch) {
                searchMenuItem.expandActionView();
            }
        }

        updateOptionsMenu();
    }

    @Override
    public boolean onMenuItemActionExpand(MenuItem item) {
        // To prevent a large space on tool bar.
        mAppBarLayout.setExpanded(false /*expanded*/, false /*animate*/);
        // To prevent user can expand the collapsing tool bar view.
        ViewCompat.setNestedScrollingEnabled(mRecyclerView, false);
        return true;
    }

    @Override
    public boolean onMenuItemActionCollapse(MenuItem item) {
        // We keep the collapsed status after user cancel the search function.
        mAppBarLayout.setExpanded(false /*expanded*/, false /*animate*/);
        ViewCompat.setNestedScrollingEnabled(mRecyclerView, true);
        return true;
    }

    @Override
    public void onPrepareOptionsMenu(Menu menu) {
        updateOptionsMenu();
    }

    @Override
    public void onDestroyOptionsMenu() {
        mOptionsMenu = null;
    }

    @StringRes
    int getHelpResource() {
        switch (mListType) {
            case LIST_TYPE_NOTIFICATION:
                return R.string.help_uri_notifications;
            case LIST_TYPE_USAGE_ACCESS:
                return R.string.help_url_usage_access;
            case LIST_TYPE_STORAGE:
                return R.string.help_uri_apps_storage;
            case LIST_TYPE_HIGH_POWER:
                return R.string.help_uri_apps_high_power;
            case LIST_TYPE_OVERLAY:
                return R.string.help_uri_apps_overlay;
            case LIST_TYPE_WRITE_SETTINGS:
                return R.string.help_uri_apps_write_settings;
            case LIST_TYPE_MANAGE_SOURCES:
                return R.string.help_uri_apps_manage_sources;
            case LIST_TYPE_GAMES:
                return R.string.help_uri_apps_overlay;
            case LIST_TYPE_WIFI_ACCESS:
                return R.string.help_uri_apps_wifi_access;
            case LIST_MANAGE_EXTERNAL_STORAGE:
                return R.string.help_uri_manage_external_storage;
            case LIST_TYPE_ALARMS_AND_REMINDERS:
                return R.string.help_uri_alarms_and_reminders;
            case LIST_TYPE_MEDIA_MANAGEMENT_APPS:
                return R.string.help_uri_media_management_apps;
            default:
            case LIST_TYPE_MAIN:
                return R.string.help_uri_apps;
        }
    }

    void updateOptionsMenu() {
        if (mOptionsMenu == null) {
            return;
        }
        mOptionsMenu.findItem(R.id.advanced).setVisible(false);

        mOptionsMenu.findItem(R.id.sort_order_alpha).setVisible(mListType == LIST_TYPE_STORAGE
                && mSortOrder != R.id.sort_order_alpha);
        mOptionsMenu.findItem(R.id.sort_order_size).setVisible(mListType == LIST_TYPE_STORAGE
                && mSortOrder != R.id.sort_order_size);

        mOptionsMenu.findItem(R.id.show_system).setVisible(!mShowSystem
                && mListType != LIST_TYPE_HIGH_POWER && wheatherShowSystemOption());
        mOptionsMenu.findItem(R.id.hide_system).setVisible(mShowSystem
                && mListType != LIST_TYPE_HIGH_POWER && wheatherShowSystemOption());
        mOptionsMenu.findItem(R.id.reset_app_preferences).setVisible(mListType == LIST_TYPE_MAIN);

        // Hide notification menu items, because sorting happens when filtering
        mOptionsMenu.findItem(R.id.sort_order_recent_notification).setVisible(false);
        mOptionsMenu.findItem(R.id.sort_order_frequent_notification).setVisible(false);
        final MenuItem searchItem = mOptionsMenu.findItem(MENU_SEARCH);
        if (searchItem != null) {
            searchItem.setVisible(false);
        }
    }

    //hide the optionsmenu of hide-system and show-system in the work interface
    private boolean wheatherShowSystemOption() {
        boolean hasManageProfile = false;
        List<UserInfo> users = mUserManager.getUsers();
        android.util.Log.d("xin.wang", "wheatherShowSystemOption: " + users + "<- users.size->" + users.size());
        for(UserInfo user : users){
            if (user.isManagedProfile()) {
                hasManageProfile = true;
                break;
            }
        }
        if (mIsWorkOnly && !mIsPersonalOnly) {
            if (!hasManageProfile) {
                return false;
            }
        }
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int menuId = item.getItemId();
        int i = item.getItemId();
        if (i == R.id.sort_order_alpha || i == R.id.sort_order_size) {
            if (mApplications != null) {
                mApplications.rebuild(menuId);
            }
        } else if (i == R.id.show_system || i == R.id.hide_system) {
            mShowSystem = !mShowSystem;
            mApplications.rebuild();
        } else if (i == R.id.reset_app_preferences) {
            mResetAppsHelper.buildResetDialog();
            return true;
        } else if (i == R.id.advanced) {
            if (mListType == LIST_TYPE_NOTIFICATION) {
                new SubSettingLauncher(getContext())
                        .setDestination(ConfigureNotificationSettings.class.getName())
                        .setTitleRes(R.string.configure_notification_settings)
                        .setSourceMetricsCategory(getMetricsCategory())
                        .setResultListener(this, ADVANCED_SETTINGS)
                        .launch();
            } else {
                Intent intent = new Intent(
                        android.provider.Settings.ACTION_MANAGE_DEFAULT_APPS_SETTINGS);
                startActivityForResult(intent, ADVANCED_SETTINGS);
            }
            return true;
        } else {// Handle the home button
            return false;
        }
        updateOptionsMenu();
        return true;
    }

    @Override
    public void onClick(View view) {
        if (mApplications == null) {
            return;
        }
        final int position = mRecyclerView.getChildAdapterPosition(view);

        if (position == RecyclerView.NO_POSITION) {
            Log.w(TAG, "Cannot find position for child, skipping onClick handling");
            return;
        }
        if (mApplications.getApplicationCount() > position) {
            ApplicationsState.AppEntry entry = mApplications.getAppEntry(position);
            mCurrentPkgName = entry.info.packageName;
            mCurrentUid = entry.info.uid;
            startApplicationDetailsActivity();
            // We disable the scrolling ability in onMenuItemActionCollapse, we should recover it
            // if user selects any app item.
            ViewCompat.setNestedScrollingEnabled(mRecyclerView, true);
        }
    }

    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
        mFilter = mFilterAdapter.getFilter(position);
        setCompositeFilter();
        mApplications.setFilter(mFilter);

        if (DEBUG) {
            Log.d(TAG, "Selecting filter " + getContext().getText(mFilter.getTitle()));
        }
    }

    @Override
    public void onNothingSelected(AdapterView<?> parent) {
    }

    @Override
    public boolean onQueryTextSubmit(String query) {
        return false;
    }

    @Override
    public boolean onQueryTextChange(String newText) {
        mApplications.filterSearch(newText);
        return false;
    }

    public void updateView() {
        updateOptionsMenu();
        final Activity host = getActivity();
        if (host != null) {
            host.invalidateOptionsMenu();
        }
    }

    public void setHasDisabled(boolean hasDisabledApps) {
        if (mListType != LIST_TYPE_MAIN) {
            return;
        }
        mFilterAdapter.setFilterEnabled(FILTER_APPS_ENABLED, hasDisabledApps);
        mFilterAdapter.setFilterEnabled(FILTER_APPS_DISABLED, hasDisabledApps);
    }

    public void setHasInstant(boolean haveInstantApps) {
        if (LIST_TYPES_WITH_INSTANT.contains(mListType)) {
            mFilterAdapter.setFilterEnabled(FILTER_APPS_INSTANT, haveInstantApps);
        }
    }

    private void disableToolBarScrollableBehavior() {
        final CoordinatorLayout.LayoutParams params =
                (CoordinatorLayout.LayoutParams) mAppBarLayout.getLayoutParams();
        final AppBarLayout.Behavior behavior = new AppBarLayout.Behavior();
        behavior.setDragCallback(
                new AppBarLayout.Behavior.DragCallback() {
                    @Override
                    public boolean canDrag(@NonNull AppBarLayout appBarLayout) {
                        return false;
                    }
                });
        params.setBehavior(behavior);
    }

    static class FilterSpinnerAdapter extends SettingsSpinnerAdapter<CharSequence> {

        private final ManageApplications mManageApplications;
        private final Context mContext;

        // Use ArrayAdapter for view logic, but have our own list for managing
        // the options available.
        private final ArrayList<AppFilterItem> mFilterOptions = new ArrayList<>();

        public FilterSpinnerAdapter(ManageApplications manageApplications) {
            super(manageApplications.getContext());
            mContext = manageApplications.getContext();
            mManageApplications = manageApplications;
        }

        public AppFilterItem getFilter(int position) {
            return mFilterOptions.get(position);
        }

        public void setFilterEnabled(@AppFilterRegistry.FilterType int filter, boolean enabled) {
            if (enabled) {
                enableFilter(filter);
            } else {
                disableFilter(filter);
            }
        }

        public void enableFilter(@AppFilterRegistry.FilterType int filterType) {
            final AppFilterItem filter = AppFilterRegistry.getInstance().get(filterType);
            if (mFilterOptions.contains(filter)) {
                return;
            }
            if (DEBUG) {
                Log.d(TAG, "Enabling filter " + mContext.getText(filter.getTitle()));
            }
            mFilterOptions.add(filter);
            Collections.sort(mFilterOptions);
            updateFilterView(mFilterOptions.size() > 1);
            notifyDataSetChanged();
            if (mFilterOptions.size() == 1) {
                if (DEBUG) {
                    Log.d(TAG, "Auto selecting filter " + filter + " " + mContext.getText(
                            filter.getTitle()));
                }
                mManageApplications.mFilterSpinner.setSelection(0);
                mManageApplications.onItemSelected(null, null, 0, 0);
            }
            if (mFilterOptions.size() > 1) {
                final AppFilterItem previousFilter = AppFilterRegistry.getInstance().get(
                        mManageApplications.mFilterType);
                final int index = mFilterOptions.indexOf(previousFilter);
                if (index != -1) {
                    android.util.Log.d("xin.wang", "enableFilter: previousFilter -> " + previousFilter + "<- index -> " + index);
                    mManageApplications.mFilterSpinner.setSelection(index);
                    mManageApplications.onItemSelected(null, null, index, 0);
                }
            }
        }

        public void disableFilter(@AppFilterRegistry.FilterType int filterType) {
            final AppFilterItem filter = AppFilterRegistry.getInstance().get(filterType);
            if (!mFilterOptions.remove(filter)) {
                return;
            }
            if (DEBUG) {
                Log.d(TAG, "Disabling filter " + filter + " " + mContext.getText(
                        filter.getTitle()));
            }
            Collections.sort(mFilterOptions);
            updateFilterView(mFilterOptions.size() > 1);
            notifyDataSetChanged();
            if (mManageApplications.mFilter == filter) {
                if (mFilterOptions.size() > 0) {
                    if (DEBUG) {
                        Log.d(TAG, "Auto selecting filter " + mFilterOptions.get(0)
                                + mContext.getText(mFilterOptions.get(0).getTitle()));
                    }
                    android.util.Log.d("xin.wang", "disableFilter: Auto selecting filter -> " + mContext.getText(mFilterOptions.get(0).getTitle()));
                    mManageApplications.mFilterSpinner.setSelection(0);
                    mManageApplications.onItemSelected(null, null, 0, 0);
                }
            }
        }

        @Override
        public int getCount() {
            android.util.Log.d("xin.wang", "getCount: mFilterOptions.size()->" + mFilterOptions.size());
            return mFilterOptions.size();
        }

        @Override
        public CharSequence getItem(int position) {
            return mContext.getText(mFilterOptions.get(position).getTitle());
        }

        @VisibleForTesting
        void updateFilterView(boolean hasFilter) {
            // If we need to add a floating filter in this screen, we should have an extra top
            // padding for putting floating filter view. Otherwise, the content of list will be
            // overlapped by floating filter.
            if (hasFilter) {
                mManageApplications.mSpinnerHeader.setVisibility(View.VISIBLE);
            } else {
                mManageApplications.mSpinnerHeader.setVisibility(View.GONE);
            }
        }
    }

    static class ApplicationsAdapter extends RecyclerView.Adapter<ApplicationViewHolder>
            implements ApplicationsState.Callbacks, AppStateBaseBridge.Callback {

        private static final String STATE_LAST_SCROLL_INDEX = "state_last_scroll_index";
        private static final int VIEW_TYPE_APP = 0;
        private static final int VIEW_TYPE_EXTRA_VIEW = 1;

        private final ApplicationsState mState;
        private final ApplicationsState.Session mSession;
        private final ManageApplications mManageApplications;
        private final Context mContext;
        private final AppStateBaseBridge mExtraInfoBridge;
        private final LoadingViewController mLoadingViewController;
        private final IconDrawableFactory mIconDrawableFactory;

        private AppFilterItem mAppFilter;
        private ArrayList<ApplicationsState.AppEntry> mEntries;
        private ArrayList<ApplicationsState.AppEntry> mOriginalEntries;
        private boolean mResumed;
        private int mLastSortMode = -1;
        private int mWhichSize = SIZE_TOTAL;
        private AppFilter mCompositeFilter;
        private boolean mHasReceivedLoadEntries;
        private boolean mHasReceivedBridgeCallback;
        private SearchFilter mSearchFilter;
        private PowerAllowlistBackend mBackend;
        private HashSet<String> mSupportAppClone;
        // This is to remember and restore the last scroll position when this
        // fragment is paused. We need this special handling because app entries are added gradually
        // when we rebuild the list after the user made some changes, like uninstalling an app.
        private int mLastIndex = -1;

        @VisibleForTesting
        OnScrollListener mOnScrollListener;
        private RecyclerView mRecyclerView;


        public ApplicationsAdapter(ApplicationsState state, ManageApplications manageApplications,
                AppFilterItem appFilter, Bundle savedInstanceState) {
            setHasStableIds(true);
            mState = state;
            mSession = state.newSession(this);
            mManageApplications = manageApplications;
            mLoadingViewController = new LoadingViewController(
                    mManageApplications.mLoadingContainer,
                    mManageApplications.mRecyclerView,
                    mManageApplications.mEmptyView
            );
            mContext = manageApplications.getActivity();
            mIconDrawableFactory = IconDrawableFactory.newInstance(mContext);
            mAppFilter = appFilter;
            mBackend = PowerAllowlistBackend.getInstance(mContext);
            String[] supportApps = mContext.getResources().getStringArray(com.unisoc.internal.R.array.support_app_clone);
            mSupportAppClone = new HashSet<String>(Arrays.asList(supportApps));
            android.util.Log.d("xin.wang", "ApplicationsAdapter -> mSupportAppClone -> : " + mSupportAppClone);
            if (mManageApplications.mListType == LIST_TYPE_NOTIFICATION) {
                mExtraInfoBridge = new AppStateNotificationBridge(mContext, mState, this,
                        manageApplications.mUsageStatsManager,
                        manageApplications.mUserManager,
                        manageApplications.mNotificationBackend);
            } else if (mManageApplications.mListType == LIST_TYPE_USAGE_ACCESS) {
                mExtraInfoBridge = new AppStateUsageBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_HIGH_POWER) {
                mBackend.refreshList();
                mExtraInfoBridge = new AppStatePowerBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_OVERLAY) {
                mExtraInfoBridge = new AppStateOverlayBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_WRITE_SETTINGS) {
                mExtraInfoBridge = new AppStateWriteSettingsBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_MANAGE_SOURCES) {
                mExtraInfoBridge = new AppStateInstallAppsBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_WIFI_ACCESS) {
                mExtraInfoBridge = new AppStateChangeWifiStateBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_MANAGE_EXTERNAL_STORAGE) {
                mExtraInfoBridge = new AppStateManageExternalStorageBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_ALARMS_AND_REMINDERS) {
                mExtraInfoBridge = new AppStateAlarmsAndRemindersBridge(mContext, mState, this);
            } else if (mManageApplications.mListType == LIST_TYPE_MEDIA_MANAGEMENT_APPS) {
                mExtraInfoBridge = new AppStateMediaManagementAppsBridge(mContext, mState, this);
            } else {
                mExtraInfoBridge = null;
            }
            if (savedInstanceState != null) {
                mLastIndex = savedInstanceState.getInt(STATE_LAST_SCROLL_INDEX);
            }
        }

        @Override
        public void onAttachedToRecyclerView(@NonNull RecyclerView recyclerView) {
            super.onAttachedToRecyclerView(recyclerView);
            mRecyclerView = recyclerView;
            mOnScrollListener = new OnScrollListener(this);
            mRecyclerView.addOnScrollListener(mOnScrollListener);
        }

        @Override
        public void onDetachedFromRecyclerView(@NonNull RecyclerView recyclerView) {
            super.onDetachedFromRecyclerView(recyclerView);
            mRecyclerView.removeOnScrollListener(mOnScrollListener);
            mOnScrollListener = null;
            mRecyclerView = null;
        }

        public void setCompositeFilter(AppFilter compositeFilter) {
            mCompositeFilter = compositeFilter;
            rebuild();
        }

        public void setFilter(AppFilterItem appFilter) {
            mAppFilter = appFilter;

            // Notification filters require resorting the list
            if (mManageApplications.mListType == LIST_TYPE_NOTIFICATION) {
                if (FILTER_APPS_FREQUENT == appFilter.getFilterType()) {
                    rebuild(R.id.sort_order_frequent_notification);
                } else if (FILTER_APPS_RECENT == appFilter.getFilterType()) {
                    rebuild(R.id.sort_order_recent_notification);
                } else if (FILTER_APPS_BLOCKED == appFilter.getFilterType()) {
                    rebuild(R.id.sort_order_alpha);
                } else {
                    rebuild(R.id.sort_order_alpha);
                }
            } else {
                rebuild();
            }
        }

        public void resume(int sort) {
            if (DEBUG) Log.i(TAG, "Resume!  mResumed=" + mResumed);
            if (!mResumed) {
                mResumed = true;
                mSession.onResume();
                mLastSortMode = sort;
                if (mExtraInfoBridge != null) {
                    mExtraInfoBridge.resume();
                }
                rebuild();
            } else {
                rebuild(sort);
            }
        }

        public void pause() {
            if (mResumed) {
                mResumed = false;
                mSession.onPause();
                if (mExtraInfoBridge != null) {
                    mExtraInfoBridge.pause();
                }
            }
        }

        public void onSaveInstanceState(Bundle outState) {
            // Record the current scroll position before pausing.
            final LinearLayoutManager layoutManager =
                    (LinearLayoutManager) mManageApplications.mRecyclerView.getLayoutManager();
            outState.putInt(STATE_LAST_SCROLL_INDEX, layoutManager.findFirstVisibleItemPosition());
        }

        public void release() {
            mSession.onDestroy();
            if (mExtraInfoBridge != null) {
                mExtraInfoBridge.release();
            }
        }

        public void rebuild(int sort) {
            if (sort == mLastSortMode) {
                return;
            }
            mManageApplications.mSortOrder = sort;
            mLastSortMode = sort;
            rebuild();
        }

        @Override
        public ApplicationViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            final View view;
            if (mManageApplications.mListType == LIST_TYPE_NOTIFICATION) {
                view = ApplicationViewHolder.newView(parent, true /* twoTarget */);
            } else {
                view = ApplicationViewHolder.newView(parent, false /* twoTarget */);
            }
            return new ApplicationViewHolder(view);
        }

        @Override
        public int getItemViewType(int position) {
            return VIEW_TYPE_APP;
        }

        public void rebuild() {
            if (!mHasReceivedLoadEntries
                    || (mExtraInfoBridge != null && !mHasReceivedBridgeCallback)) {
                // Don't rebuild the list until all the app entries are loaded.
                if (DEBUG) {
                    Log.d(TAG, "Not rebuilding until all the app entries loaded."
                            + " !mHasReceivedLoadEntries=" + !mHasReceivedLoadEntries
                            + " !mExtraInfoBridgeNull=" + (mExtraInfoBridge != null)
                            + " !mHasReceivedBridgeCallback=" + !mHasReceivedBridgeCallback);
                }
                return;
            }
            ApplicationsState.AppFilter filterObj;
            Comparator<AppEntry> comparatorObj;
            boolean emulated = Environment.isExternalStorageEmulated();
            if (emulated) {
                mWhichSize = SIZE_TOTAL;
            } else {
                mWhichSize = SIZE_INTERNAL;
            }
            filterObj = mAppFilter.getFilter();
            if (mCompositeFilter != null) {
                filterObj = new CompoundFilter(filterObj, mCompositeFilter);
            }
            if (!mManageApplications.mShowSystem) {
                if (LIST_TYPES_WITH_INSTANT.contains(mManageApplications.mListType)) {
                    filterObj = new CompoundFilter(filterObj,
                            ApplicationsState.FILTER_DOWNLOADED_AND_LAUNCHER_AND_INSTANT);
                } else {
                    filterObj = new CompoundFilter(filterObj,
                            ApplicationsState.FILTER_DOWNLOADED_AND_LAUNCHER);
                }
            }
            if (mLastSortMode == R.id.sort_order_size) {
                switch (mWhichSize) {
                    case SIZE_INTERNAL:
                        comparatorObj = ApplicationsState.INTERNAL_SIZE_COMPARATOR;
                        break;
                    case SIZE_EXTERNAL:
                        comparatorObj = ApplicationsState.EXTERNAL_SIZE_COMPARATOR;
                        break;
                    default:
                        comparatorObj = ApplicationsState.SIZE_COMPARATOR;
                        break;
                }
            } else if (mLastSortMode == R.id.sort_order_recent_notification) {
                comparatorObj = AppStateNotificationBridge.RECENT_NOTIFICATION_COMPARATOR;
            } else if (mLastSortMode == R.id.sort_order_frequent_notification) {
                comparatorObj = AppStateNotificationBridge.FREQUENCY_NOTIFICATION_COMPARATOR;
            } else {
                comparatorObj = ApplicationsState.ALPHA_COMPARATOR;
            }

            final AppFilter finalFilterObj = new CompoundFilter(filterObj,
                    ApplicationsState.FILTER_NOT_HIDE);
            ThreadUtils.postOnBackgroundThread(() -> {
                mSession.rebuild(finalFilterObj, comparatorObj, false);
            });
        }

        @VisibleForTesting
        void filterSearch(String query) {
            if (mSearchFilter == null) {
                mSearchFilter = new SearchFilter();
            }
            // If we haven't load apps list completely, don't filter anything.
            if (mOriginalEntries == null) {
                Log.w(TAG, "Apps haven't loaded completely yet, so nothing can be filtered");
                return;
            }
            mSearchFilter.filter(query);
        }

        private static boolean packageNameEquals(PackageItemInfo info1, PackageItemInfo info2) {
            if (info1 == null || info2 == null) {
                return false;
            }
            if (info1.packageName == null || info2.packageName == null) {
                return false;
            }
            return info1.packageName.equals(info2.packageName);
        }

        private ArrayList<ApplicationsState.AppEntry> removeDuplicateIgnoringUser(
                ArrayList<ApplicationsState.AppEntry> entries) {
            int size = entries.size();
            // returnList will not have more entries than entries
            ArrayList<ApplicationsState.AppEntry> returnEntries = new ArrayList<>(size);

            // assume appinfo of same package but different users are grouped together
            PackageItemInfo lastInfo = null;
            for (int i = 0; i < size; i++) {
                AppEntry appEntry = entries.get(i);
                PackageItemInfo info = appEntry.info;
                if (!packageNameEquals(lastInfo, appEntry.info)) {
                    returnEntries.add(appEntry);
                }
                lastInfo = info;
            }
            returnEntries.trimToSize();
            return returnEntries;
        }

        @Override
        public void onRebuildComplete(ArrayList<AppEntry> entries) {
            //android.util.Log.d("xin.wang", "onRebuildComplete:-> entries-> " + entries);
            android.util.Log.d("xin.wang", "哈哈哈onRebuildComplete:-> entries-> " + entries.size());
            if (DEBUG) {
                Log.d(TAG, "onRebuildComplete size=" + entries.size());
            }
            final int filterType = mAppFilter.getFilterType();
            if (filterType == FILTER_APPS_POWER_ALLOWLIST
                    || filterType == FILTER_APPS_POWER_ALLOWLIST_ALL) {
                entries = removeDuplicateIgnoringUser(entries);
                android.util.Log.d("xin.wang", "onRebuildComplete: entries -> " + entries.size());
            }
            //only show the cloned third-party apps in the interface of work
            if (mManageApplications.mIsWorkOnly && !mManageApplications.mIsPersonalOnly) {
                ArrayList<ApplicationsState.AppEntry> cloneEntries = new ArrayList();
                int cloneNum = 0;
                for (ApplicationsState.AppEntry entry : entries) {
                    cloneNum ++;
                    android.util.Log.d("xin.wang", "哈哈哈onRebuildComplete: cloneNum -> " + cloneNum);
                    int userId = UserHandle.getUserId(entry.info.uid);
                    UserInfo userInfo = mManageApplications.mUserManager.getUserInfo(userId);
                    boolean isManagedProfile = userInfo.isManagedProfile();

                    if (isManagedProfile) {
                        cloneEntries.add(entry);
                        android.util.Log.d("xin.wang", "isManagedProfile: -> cloneEntries " + cloneEntries + "<- cloneEntries.size() -> " + cloneEntries.size());
                        continue;
                    }
                    boolean isCloneProfile = userInfo.isCloneProfile();
                    boolean contains = mSupportAppClone.contains(entry.info.packageName);
                    android.util.Log.d("xin.wang", "onRebuildComplete: isCloneProfile -> " + isCloneProfile + "<- contains -> " + contains);
                    if (mSupportAppClone.contains(entry.info.packageName) && isCloneProfile) {
                        android.util.Log.d("xin.wang", "onRebuildComplete:mSupportAppClone-> " + mSupportAppClone + "<- entry.info.packageName->" + entry.info.packageName);
                        cloneEntries.add(entry);
                        android.util.Log.d("xin.wang", "mSupportAppClone.contains(entry.info.packageName): ->  cloneEntries " + cloneEntries + "<- cloneEntries.size() -> " + cloneEntries.size());
                    }
                }
                mEntries = cloneEntries;
                android.util.Log.d("xin.wang", "onRebuildComplete:cloneEntries ->  " + cloneEntries + "<- cloneEntries.size() ->  " + cloneEntries.size());
                mOriginalEntries = cloneEntries;
            } else {
                mEntries = entries;
                android.util.Log.d("xin.wang", "哈哈哈onRebuildComplete: mEntries -> " + mEntries.size());
                mOriginalEntries = entries;
            }

            notifyDataSetChanged();
            if (getItemCount() == 0) {
                mLoadingViewController.showEmpty(false /* animate */);
            } else {
                mLoadingViewController.showContent(false /* animate */);

                if (mManageApplications.mSearchView != null
                        && mManageApplications.mSearchView.isVisibleToUser()) {
                    final CharSequence query = mManageApplications.mSearchView.getQuery();
                    if (!TextUtils.isEmpty(query)) {
                        filterSearch(query.toString());
                    }
                }
            }
            // Restore the last scroll position if the number of entries added so far is bigger than
            // it.
            if (mLastIndex != -1 && getItemCount() > mLastIndex) {
                mManageApplications.mRecyclerView.getLayoutManager().scrollToPosition(mLastIndex);
                mLastIndex = -1;
            }

            if (mManageApplications.mListType == LIST_TYPE_USAGE_ACCESS) {
                // No enabled or disabled filters for usage access.
                return;
            }

            mManageApplications.setHasDisabled(mState.haveDisabledApps());
            mManageApplications.setHasInstant(mState.haveInstantApps());
        }

        @VisibleForTesting
        void updateLoading() {
            final boolean appLoaded = mHasReceivedLoadEntries && mSession.getAllApps().size() != 0;
            if (appLoaded) {
                mLoadingViewController.showContent(false /* animate */);
            } else {
                mLoadingViewController.showLoadingViewDelayed();
            }
        }

        @Override
        public void onExtraInfoUpdated() {
            mHasReceivedBridgeCallback = true;
            rebuild();
        }

        @Override
        public void onRunningStateChanged(boolean running) {
            mManageApplications.getActivity().setProgressBarIndeterminateVisibility(running);
        }

        @Override
        public void onPackageListChanged() {
            rebuild();
        }

        @Override
        public void onPackageIconChanged() {
            // We ensure icons are loaded when their item is displayed, so
            // don't care about icons loaded in the background.
        }

        @Override
        public void onLoadEntriesCompleted() {
            mHasReceivedLoadEntries = true;
            // We may have been skipping rebuilds until this came in, trigger one now.
            rebuild();
        }

        @Override
        public void onPackageSizeChanged(String packageName) {
            if (mEntries == null) {
                return;
            }
            final int size = mEntries.size();
            for (int i = 0; i < size; i++) {
                final AppEntry entry = mEntries.get(i);
                android.util.Log.d("xin.wang", "onPackageSizeChanged: -> entry -> " + entry.info.packageName + "<- size -> " + size + "<- mEntries -> " + mEntries);
                final ApplicationInfo info = entry.info;
                if (info == null && !TextUtils.equals(packageName, info.packageName)) {
                    continue;
                }
                if (TextUtils.equals(mManageApplications.mCurrentPkgName, info.packageName)) {
                    // We got the size information for the last app the
                    // user viewed, and are sorting by size...  they may
                    // have cleared data, so we immediately want to resort
                    // the list with the new size to reflect it to the user.
                    rebuild();
                    return;
                } else {
                    mOnScrollListener.postNotifyItemChange(i);
                }
            }
        }

        @Override
        public void onLauncherInfoChanged() {
            if (!mManageApplications.mShowSystem) {
                rebuild();
            }
        }

        @Override
        public void onAllSizesComputed() {
            if (mLastSortMode == R.id.sort_order_size) {
                rebuild();
            }
        }

        @Override
        public int getItemCount() {
            if (mEntries == null) {
                return 0;
            }
            android.util.Log.d("xin.wang", "getItemCount: " + mEntries.size());
            return mEntries.size();
        }

        public int getApplicationCount() {
            return mEntries != null ? mEntries.size() : 0;
        }

        public AppEntry getAppEntry(int position) {
            return mEntries.get(position);
        }

        @Override
        public long getItemId(int position) {
            if (position == mEntries.size()) {
                return -1;
            }
            return mEntries.get(position).id;
        }

        public boolean isEnabled(int position) {
            if (getItemViewType(position) == VIEW_TYPE_EXTRA_VIEW
                    || mManageApplications.mListType != LIST_TYPE_HIGH_POWER) {
                return true;
            }
            ApplicationsState.AppEntry entry = mEntries.get(position);

            return !mBackend.isSysAllowlisted(entry.info.packageName)
                    && !mBackend.isDefaultActiveApp(entry.info.packageName);
        }

        @Override
        public void onBindViewHolder(ApplicationViewHolder holder, int position) {
            // Bind the data efficiently with the holder
            final ApplicationsState.AppEntry entry = mEntries.get(position);
            android.util.Log.d("xin.wang", "onBindViewHolder: ApplicationsState.AppEntry -> " + entry + "<- entry -> ");
            synchronized (entry) {
                mState.ensureLabelDescription(entry);
                holder.setTitle(entry.label, entry.labelDescription);
                android.util.Log.d("xin.wang", "onBindViewHolder -> entry.label -> : " + entry.label + "<- entry.labelDescription -> " + entry.labelDescription);
                mState.ensureIcon(entry);
                holder.setIcon(entry.icon);
                updateSummary(holder, entry);
                updateSwitch(holder, entry);
                holder.updateDisableView(entry.info);
            }
            holder.setEnabled(isEnabled(position));

            holder.itemView.setOnClickListener(mManageApplications);
        }

        private void updateSummary(ApplicationViewHolder holder, AppEntry entry) {
            switch (mManageApplications.mListType) {
                case LIST_TYPE_NOTIFICATION:
                    if (entry.extraInfo != null
                            && entry.extraInfo instanceof NotificationsSentState) {
                        holder.setSummary(AppStateNotificationBridge.getSummary(mContext,
                                (NotificationsSentState) entry.extraInfo, mLastSortMode));
                    } else {
                        holder.setSummary(null);
                    }
                    break;
                case LIST_TYPE_USAGE_ACCESS:
                    if (entry.extraInfo != null
                            && entry.extraInfo instanceof PermissionState) {
                        holder.setSummary(
                                (new UsageState((PermissionState) entry.extraInfo)).isPermissible()
                                        ? R.string.app_permission_summary_allowed
                                        : R.string.app_permission_summary_not_allowed);
                    } else {
                        holder.setSummary(null);
                    }
                    break;
                case LIST_TYPE_HIGH_POWER:
                    holder.setSummary(HighPowerDetail.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_OVERLAY:
                    holder.setSummary(DrawOverlayDetails.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_WRITE_SETTINGS:
                    holder.setSummary(WriteSettingsDetails.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_MANAGE_SOURCES:
                    holder.setSummary(ExternalSourcesDetails.getPreferenceSummary(mContext, entry));
                    break;
                case LIST_TYPE_WIFI_ACCESS:
                    holder.setSummary(ChangeWifiStateDetails.getSummary(mContext, entry));
                    break;
                case LIST_MANAGE_EXTERNAL_STORAGE:
                    holder.setSummary(ManageExternalStorageDetails.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_ALARMS_AND_REMINDERS:
                    holder.setSummary(AlarmsAndRemindersDetails.getSummary(mContext, entry));
                    break;
                case LIST_TYPE_MEDIA_MANAGEMENT_APPS:
                    holder.setSummary(MediaManagementAppsDetails.getSummary(mContext, entry));
                    break;
                default:
                    holder.updateSizeText(entry, mManageApplications.mInvalidSizeStr, mWhichSize);
                    break;
            }
        }

        private void updateSwitch(ApplicationViewHolder holder, AppEntry entry) {
            switch (mManageApplications.mListType) {
                case LIST_TYPE_NOTIFICATION:
                    holder.updateSwitch(((AppStateNotificationBridge) mExtraInfoBridge)
                                    .getSwitchOnCheckedListener(entry),
                            AppStateNotificationBridge.enableSwitch(entry),
                            AppStateNotificationBridge.checkSwitch(entry));
                    if (entry.extraInfo != null
                            && entry.extraInfo instanceof NotificationsSentState) {
                        holder.setSummary(AppStateNotificationBridge.getSummary(mContext,
                                (NotificationsSentState) entry.extraInfo, mLastSortMode));
                    } else {
                        holder.setSummary(null);
                    }
                    break;
            }
        }

        public static class OnScrollListener extends RecyclerView.OnScrollListener {
            private int mScrollState = SCROLL_STATE_IDLE;
            private boolean mDelayNotifyDataChange;
            private ApplicationsAdapter mAdapter;

            public OnScrollListener(ApplicationsAdapter adapter) {
                mAdapter = adapter;
            }

            @Override
            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
                mScrollState = newState;
                if (mScrollState == SCROLL_STATE_IDLE && mDelayNotifyDataChange) {
                    mDelayNotifyDataChange = false;
                    mAdapter.notifyDataSetChanged();
                }
            }

            public void postNotifyItemChange(int index) {
                if (mScrollState == SCROLL_STATE_IDLE) {
                    mAdapter.notifyItemChanged(index);
                } else {
                    mDelayNotifyDataChange = true;
                }
            }
        }

        /**
         * An array filter that constrains the content of the array adapter with a substring.
         * Item that does not contains the specified substring will be removed from the list.

         */
        private class SearchFilter extends Filter {
            @WorkerThread
            @Override
            protected FilterResults performFiltering(CharSequence query) {
                final ArrayList<ApplicationsState.AppEntry> matchedEntries;
                if (TextUtils.isEmpty(query)) {
                    matchedEntries = mOriginalEntries;
                } else {
                    matchedEntries = new ArrayList<>();
                    for (ApplicationsState.AppEntry entry : mOriginalEntries) {
                        if (entry.label.toLowerCase().contains(query.toString().toLowerCase())) {
                            matchedEntries.add(entry);
                        }
                    }
                }
                final FilterResults results = new FilterResults();
                results.values = matchedEntries;
                results.count = matchedEntries.size();
                return results;
            }

            @Override
            protected void publishResults(CharSequence constraint, FilterResults results) {
                mEntries = (ArrayList<ApplicationsState.AppEntry>) results.values;
                notifyDataSetChanged();
            }
        }
    }
}

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5、开启手机分身后所有应用的显示

个人区域存放所有应用

工作区域显示双开的应用

实现的逻辑类ProfileSelectManageApplications

/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings.dashboard.profileselector;

import android.os.Bundle;

import androidx.fragment.app.Fragment;

import com.android.settings.applications.manageapplications.ManageApplications;

/**
 * Application Setting page for personal/managed profile.
 */
public class ProfileSelectManageApplications extends ProfileSelectFragment {

    @Override
    public Fragment[] getFragments() {
        final Bundle workOnly = getArguments() != null ? getArguments().deepCopy() : new Bundle();
        workOnly.putInt(EXTRA_PROFILE, ProfileSelectFragment.ProfileType.WORK);
        final Fragment workFragment = new ManageApplications();
        workFragment.setArguments(workOnly);

        final Bundle personalOnly = getArguments() != null ? getArguments() : new Bundle();
        personalOnly.putInt(EXTRA_PROFILE, ProfileSelectFragment.ProfileType.PERSONAL);
        final Fragment personalFragment = new ManageApplications();
        personalFragment.setArguments(personalOnly);
        return new Fragment[]{
                personalFragment, //0
                workFragment
        };
    }
}
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