Quick Settings 中 Tile 的加载

系统启动后，启动 SystemUI
SystemServer::run -> SystemServer::startBootstrapServices-> SystemServer::startOtherServices() -> startSystemUi(context);
SystemUI 加载 Quick Settings：
SystemUIService::onCreate() -> SystemUIApplication::startServicesIfNeeded -> StatusBar::start() -> StatusBar::createAndAddWindows -> StatusBar::makeStatusBarView

public class StatusBar extends SystemUI ... {
    ...
    protected void makeStatusBarView(@Nullable RegisterStatusBarResult result) {
        ...
        // Set up the quick settings tile panel
        final View container = mNotificationShadeWindowView.findViewById(R.id.qs_frame);
        if (container != null) {
            FragmentHostManager fragmentHostManager = FragmentHostManager.get(container);
            ExtensionFragmentListener.attachExtensonToFragment(container, QS.TAG, R.id.qs_frame,
                    mExtensionController
                            .newExtension(QS.class)
                            .withPlugin(QS.class)
                            .withDefault(this::createDefaultQSFragment)
                            .build());
            mBrightnessMirrorController = new BrightnessMirrorController(
                    mNotificationShadeWindowView,
                    mNotificationPanelViewController,
                    mNotificationShadeDepthControllerLazy.get(),
                    (visible) -> {
                        mBrightnessMirrorVisible = visible;
                        updateScrimController();
                    });
            fragmentHostManager.addTagListener(QS.TAG, (tag, f) -> {
                QS qs = (QS) f;
                if (qs instanceof QSFragment) {
                    mQSPanel = ((QSFragment) qs).getQsPanel();
                    mQSPanel.setBrightnessMirror(mBrightnessMirrorController);
                }
            });
        }
        ...
    }
}
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

由上述代码可知，Quick Settings 对应 StatusBar::createDefaultQSFragment 方法创建的 Fragment，并被放置 mNotificationShadeWindowView 中的 R.id.qs_frame 下

public class StatusBar extends SystemUI ... {
    ...
    protected QS createDefaultQSFragment() {
        return FragmentHostManager.get(mNotificationShadeWindowView).create(QSFragment.class);
    }
    ...
}
1
2
3
4
5
6
7

从 QSFragment::onCreateView 方法可知，对应的布局文件为 R.layout.qs_panel

public class QSFragment extends LifecycleFragment implements QS, CommandQueue.Callbacks,
        StatusBarStateController.StateListener {
    ...
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
            Bundle savedInstanceState) {
        inflater = mInjectionInflater.injectable(
                inflater.cloneInContext(new ContextThemeWrapper(getContext(),
                        R.style.Theme_SystemUI_QuickSettings)));
        return inflater.inflate(R.layout.qs_panel, container, false);
    }
    ...
}
1
2
3
4
5
6
7
8
9
10
11
12
13

在 R.layout.qs_panel 中，掌管 Tile 显示的部分是 QSPanel，在布局文件中定义如下

    ...
        
            
        
    ...

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

在 QSFragment::onViewCreated 中获得 QSPanelController 的实例，并初始化它

public class QSFragment extends LifecycleFragment implements QS, CommandQueue.Callbacks,
        StatusBarStateController.StateListener {
    ...
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
            Bundle savedInstanceState) {
        inflater = mInjectionInflater.injectable(
                inflater.cloneInContext(new ContextThemeWrapper(getContext(),
                        R.style.Theme_SystemUI_QuickSettings)));
        return inflater.inflate(R.layout.qs_panel, container, false);
    }
    ...
}
1
2
3
4
5
6
7
8
9
10
11
12
13

Tile 首次加载时的调用栈 log

QSTileHost: java.lang.RuntimeException
QSTileHost:    at com.android.systemui.qs.QSTileHost.getTiles(QSTileHost.java:230)
QSTileHost:    at com.android.systemui.qs.QSPanelControllerBase.setTiles(QSPanelControllerBase.java:186)
QSTileHost:    at com.android.systemui.qs.QSPanelControllerBase.onViewAttached(QSPanelControllerBase.java:158)
QSTileHost:    at com.android.systemui.qs.QSPanelController.onViewAttached(QSPanelController.java:147)
QSTileHost:    at com.android.systemui.util.ViewController$1.onViewAttachedToWindow(ViewController.java:52)
QSTileHost:    at com.android.systemui.util.ViewController.init(ViewController.java:80)
QSTileHost:    at com.android.systemui.qs.QSFragment.onViewCreated(QSFragment.java:178)
QSTileHost:    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1313)
1
2
3
4
5
6
7
8
9

com.android.systemui.qs.QSTileHost#loadTileSpecs
com.android.systemui.qs.QSTileHost#onTuningChanged
com.android.systemui.qs.QSTileHost#QSTileHost
挪动 QS 中 Tile 的调用栈 log

QSTileHost: saveTilesToSettings() Called: com.android.systemui.qs.QSTileHost@93fba
QSTileHost: java.lang.RuntimeException
QSTileHost:    at com.android.systemui.qs.QSTileHost.saveTilesToSettings(QSTileHost.java:403)
QSTileHost:    at com.android.systemui.qs.QSTileHost.changeTiles(QSTileHost.java:472)
QSTileHost:    at com.android.systemui.qs.customize.TileAdapter.saveSpecs(TileAdapter.java:184)
QSTileHost:    at com.android.systemui.qs.customize.TileAdapter.move(TileAdapter.java:520)
QSTileHost:    at com.android.systemui.qs.customize.TileAdapter.move(TileAdapter.java:500)
QSTileHost:    at com.android.systemui.qs.customize.TileAdapter.access$1900(TileAdapter.java:70)
QSTileHost:    at com.android.systemui.qs.customize.TileAdapter$5.onMove(TileAdapter.java:821)
QSTileHost:    at androidx.recyclerview.widget.ItemTouchHelper.moveIfNecessary(ItemTouchHelper.java:885)
QSTileHost:    at androidx.recyclerview.widget.ItemTouchHelper$2.onTouchEvent(ItemTouchHelper.java:389)
QSTileHost:    at androidx.recyclerview.widget.RecyclerView.dispatchToOnItemTouchListeners(RecyclerView.java:3338)
QSTileHost:    at androidx.recyclerview.widget.RecyclerView.onTouchEvent(RecyclerView.java:3532)
QSTileHost:    at android.view.View.dispatchTouchEvent(View.java:14551)
QSTileHost:    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3114)
QSTileHost:    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2787)
QSTileHost:    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3120)
QSTileHost:    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2801)
QSTileHost:    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3120)
QSTileHost:    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2801)
QSTileHost:    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3120)
QSTileHost:    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2801)
QSTileHost:    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3120)
QSTileHost:    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2801)
QSTileHost:    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3120)
QSTileHost:    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2801)
QSTileHost:    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3120)
QSTileHost:    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2801)
QSTileHost:    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:3120)
QSTileHost:    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2801)
QSTileHost:    at com.android.systemui.statusbar.phone.NotificationShadeWindowView.dispatchTouchEvent(NotificationShadeWindowView.java:176)
QSTileHost:    at android.view.View.dispatchPointerEvent(View.java:14810)
QSTileHost:    at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:6351)
QSTileHost:    at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:6152)
QSTileHost:    at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5630)
QSTileHost:    at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5687)
QSTileHost:    at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5653)
QSTileHost:    at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:5818)
QSTileHost:    at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5661)
QSTileHost:    at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:5875)
QSTileHost:    at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5634)
QSTileHost:    at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:5687)
QSTileHost:    at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:5653)
QSTileHost:    at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:5661)
QSTileHost:    at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:5634)
QSTileHost:    at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:8574)
QSTileHost:    at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:8525)
QSTileHost:    at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:8493)
QSTileHost:    at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:8697)
QSTileHost:    at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:260)
QSTileHost:    at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method)
QSTileHost:    at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:240)
QSTileHost:    at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:8654)
QSTileHost:    at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:8783)
QSTileHost:    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1120)
QSTileHost:    at android.view.Choreographer.doCallbacks(Choreographer.java:926)
QSTileHost:    at android.view.Choreographer.doFrame(Choreographer.java:851)
QSTileHost:    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1105)
QSTileHost:    at android.os.Handler.handleCallback(Handler.java:938)
QSTileHost:    at android.os.Handler.dispatchMessage(Handler.java:99)
QSTileHost:    at android.os.Looper.loopOnce(Looper.java:356)
QSTileHost:    at android.os.Looper.loop(Looper.java:475)
QSTileHost:    at android.app.ActivityThread.main(ActivityThread.java:7889)
QSTileHost:    at java.lang.reflect.Method.invoke(Native Method)
QSTileHost:    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
QSTileHost:    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1009)
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

参考
https://blog.csdn.net/zplxl99/article/details/74906133?spm=1001.2101.3001.6650.1&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7Edefault-1.queryctrv2&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7Edefault-1.queryctrv2&utm_relevant_index=2