android的本地通讯录获取以及RecyclerView展示

实体类

package com.example.mydailer.po;

public class User {
    private String name;
    private String telPhone;

    public User(String name, String telPhone) {
        this.name = name;
        this.telPhone = telPhone;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getTelPhone() {
        return telPhone;
    }

    public void setTelPhone(String telPhone) {
        this.telPhone = telPhone;
    }
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

数据适配器

package com.example.mydailer;

import android.content.Context;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.mydailer.po.User;

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

public class Adapter extends RecyclerView.Adapter<Adapter.ViewHolder> {

    private static final String TAG="Adapter";
    private String[] names;
    private int[] icons;
    private String[] introduces;
    private List<User> user;
    List<String> contactsList=new ArrayList<String>();


    public Adapter() {
    }

    public Adapter(List<User> user) {
        this.user = user;
    }


    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        ViewHolder holder=new  ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.recycler_item, parent, false));
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {

        holder.name.setText(user.get(position).getName());
       // names= user.get(position).getName();
        holder.introduce.setText(user.get(position).getTelPhone());
    }

    @Override
    public int getItemCount() {

        return user == null ? 0 : user.size();
    }

    private  LayoutInflater mlayoutInflater;
    public static class ViewHolder extends RecyclerView.ViewHolder{
        TextView name;
        ImageView iv;
        TextView introduce;
        public ViewHolder(View view){
            super(view);
            name =(TextView) view.findViewById(R.id.name);
            iv=(ImageView) view.findViewById(R.id.iv);
            introduce=(TextView) view.findViewById(R.id.introduce);
        }
    }
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72

MainActivity

package com.example.mydailer;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;


import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import com.example.mydailer.po.User;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MainActivity extends AppCompatActivity {

    private RecyclerView mrecyclerView;
    private Adapter adapter;
     List<User> userList =new ArrayList<>();


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
     mrecyclerView =findViewById(R.id.recyclerView_txl);
     mrecyclerView.setLayoutManager(new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false));


        //这个地方就是请求权限
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS)
                != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(
                    MainActivity.this,new String[]{Manifest.permission.READ_CONTACTS},1);
        } else {
            readContacts();
        }
        //readContacts();
    }
//读取联系人
    private void readContacts()
    {
        Cursor cursor=null;
        try {
            cursor =getContentResolver().query(
                    ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    null,null,null,null);
            while (cursor.moveToNext()) {
                int i_name=cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME);
                String displayName = cursor.getString(i_name);
                int i_number=cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
                String number = cursor.getString(i_number);
                userList.add(new User(displayName,number));

            }
            Adapter adapter =new Adapter(userList);
            mrecyclerView.setAdapter(adapter);

        }catch (Exception e)
        {
            e.printStackTrace();
        }finally {
            if (cursor!=null)
            {
                cursor.close();
            }
        }
    }
//    private void tocall() {
//
//
//            Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + editTextPhoneString));
//            startActivity(intent);
//        }
    }


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91

activity_main

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context=".MainActivity">

  <androidx.recyclerview.widget.RecyclerView

        android:id="@+id/recyclerView_txl"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_centerVertical="true"

        android:layout_centerHorizontal="true"/>

LinearLayout>
































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

recycler_item

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:padding="10dp">

    <ImageView
        android:id="@+id/iv"
        android:layout_width="80dp"
        android:layout_height="60dp"
        android:src="@drawable/txr" />

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:layout_marginTop="5dp">

        <TextView
            android:id="@+id/name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="通讯人"
            android:textColor="#FF8F03"
            android:textSize="20sp" />

        <TextView
            android:id="@+id/introduce"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@+id/name"
            android:layout_marginTop="10dp"
            android:ellipsize="end"
            android:maxLines="2"
            android:text="河南郑州，7月19日"
            android:textColor="#FF716C6D"
            android:textSize="16sp" />


    RelativeLayout>

LinearLayout>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.example.mydailer">
    <uses-permission android:name="android.permission.READ_CONTACTS"/>
    <uses-permission android:name="android.permission.CALL_PHONE"/>
    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.MyDailer"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            intent-filter>
        activity>
    application>

manifest>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

记得要添加这两条权限

    <uses-permission android:name="android.permission.READ_CONTACTS"/>
    <uses-permission android:name="android.permission.CALL_PHONE"/>
1
2