Java 类android.view.accessibility.AccessibilityManager.TouchExplorationStateChangeListener 实例源码

@SuppressLint("NewApi")
@Override
public void postInflationStartup() {
    super.postInflationStartup();

    mSnackbarManager = new SnackbarManager(this);
    mDataUseSnackbarController = new DataUseSnackbarController(this, getSnackbarManager());

    mAssistStatusHandler = createAssistStatusHandler();
    if (mAssistStatusHandler != null) {
        if (mTabModelSelector != null) {
            mAssistStatusHandler.setTabModelSelector(mTabModelSelector);
        }
        mAssistStatusHandler.updateAssistState();
    }

    // If a user had ALLOW_LOW_END_DEVICE_UI explicitly set to false then we manually override
    // SysUtils.isLowEndDevice() with a switch so that they continue to see the normal UI. This
    // is only the case for grandfathered-in svelte users. We no longer do so for newer users.
    if (!ChromePreferenceManager.getInstance(this).getAllowLowEndDeviceUi()) {
        CommandLine.getInstance().appendSwitch(
                BaseSwitches.DISABLE_LOW_END_DEVICE_MODE);
    }

    AccessibilityManager manager = (AccessibilityManager)
            getBaseContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
    manager.addAccessibilityStateChangeListener(this);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        mTouchExplorationStateChangeListener = new TouchExplorationStateChangeListener() {
            @Override
            public void onTouchExplorationStateChanged(boolean enabled) {
                checkAccessibility();
            }
        };
        manager.addTouchExplorationStateChangeListener(mTouchExplorationStateChangeListener);
    }

    // Make the activity listen to policy change events
    CombinedPolicyProvider.get().addPolicyChangeListener(this);

    // Set up the animation placeholder to be the SurfaceView. This disables the
    // SurfaceView's 'hole' clipping during animations that are notified to the window.
    mWindowAndroid.setAnimationPlaceholderView(mCompositorViewHolder.getSurfaceView());

    // Inform the WindowAndroid of the keyboard accessory view.
    mWindowAndroid.setKeyboardAccessoryView((ViewGroup) findViewById(R.id.keyboard_accessory));
    initializeToolbar();
    initializeTabModels();
    if (!isFinishing() && getFullscreenManager() != null) {
        getFullscreenManager().initialize(
                (ControlContainer) findViewById(R.id.control_container),
                getTabModelSelector(),
                getControlContainerHeightResource());
    }
}

@SuppressLint("NewApi")
@Override
public void postInflationStartup() {
    super.postInflationStartup();

    mSnackbarManager = new SnackbarManager(this);
    mDataUseSnackbarController = new DataUseSnackbarController(this, getSnackbarManager());

    mAssistStatusHandler = createAssistStatusHandler();
    if (mAssistStatusHandler != null) {
        if (mTabModelSelector != null) {
            mAssistStatusHandler.setTabModelSelector(mTabModelSelector);
        }
        mAssistStatusHandler.updateAssistState();
    }

    // If a user had ALLOW_LOW_END_DEVICE_UI explicitly set to false then we manually override
    // SysUtils.isLowEndDevice() with a switch so that they continue to see the normal UI. This
    // is only the case for grandfathered-in svelte users. We no longer do so for newer users.
    if (!ChromePreferenceManager.getInstance(this).getAllowLowEndDeviceUi()) {
        CommandLine.getInstance().appendSwitch(
                BaseSwitches.DISABLE_LOW_END_DEVICE_MODE);
    }

    AccessibilityManager manager = (AccessibilityManager)
            getBaseContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
    manager.addAccessibilityStateChangeListener(this);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        mTouchExplorationStateChangeListener = new TouchExplorationStateChangeListener() {
            @Override
            public void onTouchExplorationStateChanged(boolean enabled) {
                checkAccessibility();
            }
        };
        manager.addTouchExplorationStateChangeListener(mTouchExplorationStateChangeListener);
    }

    // Make the activity listen to policy change events
    CombinedPolicyProvider.get().addPolicyChangeListener(this);

    // Set up the animation placeholder to be the SurfaceView. This disables the
    // SurfaceView's 'hole' clipping during animations that are notified to the window.
    mWindowAndroid.setAnimationPlaceholderView(mCompositorViewHolder.getSurfaceView());

    // Inform the WindowAndroid of the keyboard accessory view.
    mWindowAndroid.setKeyboardAccessoryView((ViewGroup) findViewById(R.id.keyboard_accessory));
    initializeToolbar();
    initializeTabModels();
    if (!isFinishing() && getFullscreenManager() != null) {
        getFullscreenManager().initialize(
                (ControlContainer) findViewById(R.id.control_container),
                getTabModelSelector(),
                getControlContainerHeightResource());
    }
}

@SuppressLint("NewApi")
@Override
public void postInflationStartup() {
    super.postInflationStartup();

    mWindowAndroid = ((ChromeApplication) getApplicationContext())
            .createActivityWindowAndroid(this);
    mWindowAndroid.restoreInstanceState(getSavedInstanceState());
    mSnackbarManager = new SnackbarManager(getWindow());
    mLoFiBarPopupController = new LoFiBarPopupController(this, getSnackbarManager());

    mAssistStatusHandler = createAssistStatusHandler();
    if (mAssistStatusHandler != null) {
        if (mTabModelSelector != null) {
            mAssistStatusHandler.setTabModelSelector(mTabModelSelector);
        }
        mAssistStatusHandler.updateAssistState();
    }

    // If a user had ALLOW_LOW_END_DEVICE_UI explicitly set to false then we manually override
    // SysUtils.isLowEndDevice() with a switch so that they continue to see the normal UI. This
    // is only the case for grandfathered-in svelte users. We no longer do so for newer users.
    if (!ChromePreferenceManager.getInstance(this).getAllowLowEndDeviceUi()) {
        CommandLine.getInstance().appendSwitch(
                BaseSwitches.DISABLE_LOW_END_DEVICE_MODE);
    }

    AccessibilityManager manager = (AccessibilityManager)
            getBaseContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
    manager.addAccessibilityStateChangeListener(this);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        mTouchExplorationStateChangeListener = new TouchExplorationStateChangeListener() {
            @Override
            public void onTouchExplorationStateChanged(boolean enabled) {
                checkAccessibility();
            }
        };
        manager.addTouchExplorationStateChangeListener(mTouchExplorationStateChangeListener);
    }

    // Make the activity listen to policy change events
    getChromeApplication().addPolicyChangeListener(this);

    // Set up the animation placeholder to be the SurfaceView. This disables the
    // SurfaceView's 'hole' clipping during animations that are notified to the window.
    mWindowAndroid.setAnimationPlaceholderView(mCompositorViewHolder.getSurfaceView());

    // Inform the WindowAndroid of the keyboard accessory view.
    mWindowAndroid.setKeyboardAccessoryView((ViewGroup) findViewById(R.id.keyboard_accessory));
    final View controlContainer = findViewById(R.id.control_container);
    if (controlContainer != null) {
        mFirstDrawListener = new ViewTreeObserver.OnPreDrawListener() {
            @Override
            public boolean onPreDraw() {
                controlContainer.getViewTreeObserver()
                        .removeOnPreDrawListener(mFirstDrawListener);
                mFirstDrawListener = null;
                onFirstDrawComplete();
                return true;
            }
        };
        controlContainer.getViewTreeObserver().addOnPreDrawListener(mFirstDrawListener);
    }
    initializeToolbar();
}

@SuppressLint("NewApi")
@Override
public void postInflationStartup() {
    super.postInflationStartup();

    mSnackbarManager = new SnackbarManager(this, null);
    mDataUseSnackbarController = new DataUseSnackbarController(this, getSnackbarManager());

    mAssistStatusHandler = createAssistStatusHandler();
    if (mAssistStatusHandler != null) {
        if (mTabModelSelector != null) {
            mAssistStatusHandler.setTabModelSelector(mTabModelSelector);
        }
        mAssistStatusHandler.updateAssistState();
    }

    // If a user had ALLOW_LOW_END_DEVICE_UI explicitly set to false then we manually override
    // SysUtils.isLowEndDevice() with a switch so that they continue to see the normal UI. This
    // is only the case for grandfathered-in svelte users. We no longer do so for newer users.
    if (!ChromePreferenceManager.getInstance().getAllowLowEndDeviceUi()) {
        CommandLine.getInstance().appendSwitch(
                BaseSwitches.DISABLE_LOW_END_DEVICE_MODE);
    }

    AccessibilityManager manager = (AccessibilityManager)
            getBaseContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
    manager.addAccessibilityStateChangeListener(this);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        mTouchExplorationStateChangeListener = new TouchExplorationStateChangeListener() {
            @Override
            public void onTouchExplorationStateChanged(boolean enabled) {
                checkAccessibility();
            }
        };
        manager.addTouchExplorationStateChangeListener(mTouchExplorationStateChangeListener);
    }

    // Make the activity listen to policy change events
    CombinedPolicyProvider.get().addPolicyChangeListener(this);
    mDidAddPolicyChangeListener = true;

    // Set up the animation placeholder to be the SurfaceView. This disables the
    // SurfaceView's 'hole' clipping during animations that are notified to the window.
    getWindowAndroid().setAnimationPlaceholderView(mCompositorViewHolder.getCompositorView());

    // Inform the WindowAndroid of the keyboard accessory view.
    getWindowAndroid().setKeyboardAccessoryView(
            (ViewGroup) findViewById(R.id.keyboard_accessory));
    initializeToolbar();
    initializeTabModels();
    if (!isFinishing() && getFullscreenManager() != null) {
        getFullscreenManager().initialize(
                (ControlContainer) findViewById(R.id.control_container),
                getTabModelSelector(),
                getControlContainerHeightResource());
    }

    if (mBottomSheet != null) {
        mBottomSheet.setTabModelSelector(mTabModelSelector);
        mBottomSheet.setFullscreenManager(mFullscreenManager);

        mFadingBackgroundView = (FadingBackgroundView) findViewById(R.id.fading_focus_target);
        mBottomSheet.addObserver(new EmptyBottomSheetObserver() {
            @Override
            public void onTransitionPeekToHalf(float transitionFraction) {
                mFadingBackgroundView.setViewAlpha(transitionFraction);
            }
        });
        mFadingBackgroundView.addObserver(mBottomSheet);

        mBottomSheetContentController =
                (BottomSheetContentController) ((ViewStub) findViewById(R.id.bottom_nav_stub))
                        .inflate();
        int controlContainerHeight =
                ((ControlContainer) findViewById(R.id.control_container)).getView().getHeight();
        mBottomSheetContentController.init(
                mBottomSheet, controlContainerHeight, mTabModelSelector, this);
    }
    ((BottomContainer) findViewById(R.id.bottom_container)).initialize(mFullscreenManager);
}