| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package io.flutter.view; |
| |
| import android.annotation.SuppressLint; |
| import android.annotation.TargetApi; |
| import android.app.Activity; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.graphics.Bitmap; |
| import android.graphics.Insets; |
| import android.graphics.PixelFormat; |
| import android.graphics.Rect; |
| import android.graphics.SurfaceTexture; |
| import android.os.Build; |
| import android.os.Handler; |
| import android.text.format.DateFormat; |
| import android.util.AttributeSet; |
| import android.util.SparseArray; |
| import android.view.DisplayCutout; |
| import android.view.KeyEvent; |
| import android.view.MotionEvent; |
| import android.view.PointerIcon; |
| import android.view.Surface; |
| import android.view.SurfaceHolder; |
| import android.view.SurfaceView; |
| import android.view.View; |
| import android.view.ViewConfiguration; |
| import android.view.ViewStructure; |
| import android.view.WindowInsets; |
| import android.view.WindowManager; |
| import android.view.accessibility.AccessibilityManager; |
| import android.view.accessibility.AccessibilityNodeProvider; |
| import android.view.autofill.AutofillValue; |
| import android.view.inputmethod.EditorInfo; |
| import android.view.inputmethod.InputConnection; |
| import android.view.inputmethod.InputMethodManager; |
| import androidx.annotation.NonNull; |
| import androidx.annotation.RequiresApi; |
| import androidx.annotation.UiThread; |
| import io.flutter.Log; |
| import io.flutter.app.FlutterPluginRegistry; |
| import io.flutter.embedding.android.AndroidTouchProcessor; |
| import io.flutter.embedding.android.KeyChannelResponder; |
| import io.flutter.embedding.android.KeyboardManager; |
| import io.flutter.embedding.engine.dart.DartExecutor; |
| import io.flutter.embedding.engine.renderer.FlutterRenderer; |
| import io.flutter.embedding.engine.renderer.SurfaceTextureWrapper; |
| import io.flutter.embedding.engine.systemchannels.AccessibilityChannel; |
| import io.flutter.embedding.engine.systemchannels.KeyEventChannel; |
| import io.flutter.embedding.engine.systemchannels.LifecycleChannel; |
| import io.flutter.embedding.engine.systemchannels.LocalizationChannel; |
| import io.flutter.embedding.engine.systemchannels.MouseCursorChannel; |
| import io.flutter.embedding.engine.systemchannels.NavigationChannel; |
| import io.flutter.embedding.engine.systemchannels.PlatformChannel; |
| import io.flutter.embedding.engine.systemchannels.SettingsChannel; |
| import io.flutter.embedding.engine.systemchannels.SystemChannel; |
| import io.flutter.embedding.engine.systemchannels.TextInputChannel; |
| import io.flutter.plugin.common.ActivityLifecycleListener; |
| import io.flutter.plugin.common.BinaryMessenger; |
| import io.flutter.plugin.editing.TextInputPlugin; |
| import io.flutter.plugin.localization.LocalizationPlugin; |
| import io.flutter.plugin.mouse.MouseCursorPlugin; |
| import io.flutter.plugin.platform.PlatformPlugin; |
| import io.flutter.plugin.platform.PlatformViewsController; |
| import io.flutter.util.ViewUtils; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| /** |
| * Deprecated Android view containing a Flutter app. |
| * |
| * @deprecated {@link io.flutter.embedding.android.FlutterView} is the new API that now replaces |
| * this class. See https://flutter.dev/go/android-project-migration for more migration details. |
| */ |
| @Deprecated |
| public class FlutterView extends SurfaceView |
| implements BinaryMessenger, TextureRegistry, MouseCursorPlugin.MouseCursorViewDelegate { |
| /** |
| * Interface for those objects that maintain and expose a reference to a {@code FlutterView} (such |
| * as a full-screen Flutter activity). |
| * |
| * <p>This indirection is provided to support applications that use an activity other than {@link |
| * io.flutter.app.FlutterActivity} (e.g. Android v4 support library's {@code FragmentActivity}). |
| * It allows Flutter plugins to deal in this interface and not require that the activity be a |
| * subclass of {@code FlutterActivity}. |
| */ |
| public interface Provider { |
| /** |
| * Returns a reference to the Flutter view maintained by this object. This may be {@code null}. |
| * |
| * @return a reference to the Flutter view maintained by this object. |
| */ |
| FlutterView getFlutterView(); |
| } |
| |
| private static final String TAG = "FlutterView"; |
| |
| static final class ViewportMetrics { |
| float devicePixelRatio = 1.0f; |
| int physicalWidth = 0; |
| int physicalHeight = 0; |
| int physicalViewPaddingTop = 0; |
| int physicalViewPaddingRight = 0; |
| int physicalViewPaddingBottom = 0; |
| int physicalViewPaddingLeft = 0; |
| int physicalViewInsetTop = 0; |
| int physicalViewInsetRight = 0; |
| int physicalViewInsetBottom = 0; |
| int physicalViewInsetLeft = 0; |
| int systemGestureInsetTop = 0; |
| int systemGestureInsetRight = 0; |
| int systemGestureInsetBottom = 0; |
| int systemGestureInsetLeft = 0; |
| int physicalTouchSlop = -1; |
| } |
| |
| private final DartExecutor dartExecutor; |
| private final FlutterRenderer flutterRenderer; |
| private final NavigationChannel navigationChannel; |
| private final KeyEventChannel keyEventChannel; |
| private final LifecycleChannel lifecycleChannel; |
| private final LocalizationChannel localizationChannel; |
| private final PlatformChannel platformChannel; |
| private final SettingsChannel settingsChannel; |
| private final SystemChannel systemChannel; |
| private final InputMethodManager mImm; |
| private final TextInputPlugin mTextInputPlugin; |
| private final LocalizationPlugin mLocalizationPlugin; |
| private final MouseCursorPlugin mMouseCursorPlugin; |
| private final KeyboardManager mKeyboardManager; |
| private final AndroidTouchProcessor androidTouchProcessor; |
| private AccessibilityBridge mAccessibilityNodeProvider; |
| private final SurfaceHolder.Callback mSurfaceCallback; |
| private final ViewportMetrics mMetrics; |
| private final List<ActivityLifecycleListener> mActivityLifecycleListeners; |
| private final List<FirstFrameListener> mFirstFrameListeners; |
| private final AtomicLong nextTextureId = new AtomicLong(0L); |
| private FlutterNativeView mNativeView; |
| private boolean mIsSoftwareRenderingEnabled = false; // using the software renderer or not |
| private boolean didRenderFirstFrame = false; |
| |
| private final AccessibilityBridge.OnAccessibilityChangeListener onAccessibilityChangeListener = |
| new AccessibilityBridge.OnAccessibilityChangeListener() { |
| @Override |
| public void onAccessibilityChanged( |
| boolean isAccessibilityEnabled, boolean isTouchExplorationEnabled) { |
| resetWillNotDraw(isAccessibilityEnabled, isTouchExplorationEnabled); |
| } |
| }; |
| |
| public FlutterView(Context context) { |
| this(context, null); |
| } |
| |
| public FlutterView(Context context, AttributeSet attrs) { |
| this(context, attrs, null); |
| } |
| |
| public FlutterView(Context context, AttributeSet attrs, FlutterNativeView nativeView) { |
| super(context, attrs); |
| |
| Activity activity = ViewUtils.getActivity(getContext()); |
| if (activity == null) { |
| throw new IllegalArgumentException("Bad context"); |
| } |
| |
| if (nativeView == null) { |
| mNativeView = new FlutterNativeView(activity.getApplicationContext()); |
| } else { |
| mNativeView = nativeView; |
| } |
| |
| dartExecutor = mNativeView.getDartExecutor(); |
| flutterRenderer = new FlutterRenderer(mNativeView.getFlutterJNI()); |
| mIsSoftwareRenderingEnabled = mNativeView.getFlutterJNI().getIsSoftwareRenderingEnabled(); |
| mMetrics = new ViewportMetrics(); |
| mMetrics.devicePixelRatio = context.getResources().getDisplayMetrics().density; |
| mMetrics.physicalTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop(); |
| setFocusable(true); |
| setFocusableInTouchMode(true); |
| |
| mNativeView.attachViewAndActivity(this, activity); |
| |
| mSurfaceCallback = |
| new SurfaceHolder.Callback() { |
| @Override |
| public void surfaceCreated(SurfaceHolder holder) { |
| assertAttached(); |
| mNativeView.getFlutterJNI().onSurfaceCreated(holder.getSurface()); |
| } |
| |
| @Override |
| public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { |
| assertAttached(); |
| mNativeView.getFlutterJNI().onSurfaceChanged(width, height); |
| } |
| |
| @Override |
| public void surfaceDestroyed(SurfaceHolder holder) { |
| assertAttached(); |
| mNativeView.getFlutterJNI().onSurfaceDestroyed(); |
| } |
| }; |
| getHolder().addCallback(mSurfaceCallback); |
| |
| mActivityLifecycleListeners = new ArrayList<>(); |
| mFirstFrameListeners = new ArrayList<>(); |
| |
| // Create all platform channels |
| navigationChannel = new NavigationChannel(dartExecutor); |
| keyEventChannel = new KeyEventChannel(dartExecutor); |
| lifecycleChannel = new LifecycleChannel(dartExecutor); |
| localizationChannel = new LocalizationChannel(dartExecutor); |
| platformChannel = new PlatformChannel(dartExecutor); |
| systemChannel = new SystemChannel(dartExecutor); |
| settingsChannel = new SettingsChannel(dartExecutor); |
| |
| // Create and set up plugins |
| PlatformPlugin platformPlugin = new PlatformPlugin(activity, platformChannel); |
| addActivityLifecycleListener( |
| new ActivityLifecycleListener() { |
| @Override |
| public void onPostResume() { |
| platformPlugin.updateSystemUiOverlays(); |
| } |
| }); |
| mImm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE); |
| PlatformViewsController platformViewsController = |
| mNativeView.getPluginRegistry().getPlatformViewsController(); |
| mTextInputPlugin = |
| new TextInputPlugin(this, new TextInputChannel(dartExecutor), platformViewsController); |
| mKeyboardManager = |
| new KeyboardManager( |
| this, |
| mTextInputPlugin, |
| new KeyChannelResponder[] {new KeyChannelResponder(keyEventChannel)}); |
| |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { |
| mMouseCursorPlugin = new MouseCursorPlugin(this, new MouseCursorChannel(dartExecutor)); |
| } else { |
| mMouseCursorPlugin = null; |
| } |
| mLocalizationPlugin = new LocalizationPlugin(context, localizationChannel); |
| androidTouchProcessor = |
| new AndroidTouchProcessor(flutterRenderer, /*trackMotionEvents=*/ false); |
| platformViewsController.attachToFlutterRenderer(flutterRenderer); |
| mNativeView |
| .getPluginRegistry() |
| .getPlatformViewsController() |
| .attachTextInputPlugin(mTextInputPlugin); |
| mNativeView.getFlutterJNI().setLocalizationPlugin(mLocalizationPlugin); |
| |
| // Send initial platform information to Dart |
| mLocalizationPlugin.sendLocalesToFlutter(getResources().getConfiguration()); |
| sendUserPlatformSettingsToDart(); |
| } |
| |
| @NonNull |
| public DartExecutor getDartExecutor() { |
| return dartExecutor; |
| } |
| |
| @Override |
| public boolean dispatchKeyEvent(KeyEvent event) { |
| Log.e(TAG, "dispatchKeyEvent: " + event.toString()); |
| if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { |
| // Tell Android to start tracking this event. |
| getKeyDispatcherState().startTracking(event, this); |
| } else if (event.getAction() == KeyEvent.ACTION_UP) { |
| // Stop tracking the event. |
| getKeyDispatcherState().handleUpEvent(event); |
| } |
| // If the key processor doesn't handle it, then send it on to the |
| // superclass. The key processor will typically handle all events except |
| // those where it has re-dispatched the event after receiving a reply from |
| // the framework that the framework did not handle it. |
| return (isAttached() && mKeyboardManager.handleEvent(event)) || super.dispatchKeyEvent(event); |
| } |
| |
| public FlutterNativeView getFlutterNativeView() { |
| return mNativeView; |
| } |
| |
| public FlutterPluginRegistry getPluginRegistry() { |
| return mNativeView.getPluginRegistry(); |
| } |
| |
| public String getLookupKeyForAsset(String asset) { |
| return FlutterMain.getLookupKeyForAsset(asset); |
| } |
| |
| public String getLookupKeyForAsset(String asset, String packageName) { |
| return FlutterMain.getLookupKeyForAsset(asset, packageName); |
| } |
| |
| public void addActivityLifecycleListener(ActivityLifecycleListener listener) { |
| mActivityLifecycleListeners.add(listener); |
| } |
| |
| public void onStart() { |
| lifecycleChannel.appIsInactive(); |
| } |
| |
| public void onPause() { |
| lifecycleChannel.appIsInactive(); |
| } |
| |
| public void onPostResume() { |
| for (ActivityLifecycleListener listener : mActivityLifecycleListeners) { |
| listener.onPostResume(); |
| } |
| lifecycleChannel.appIsResumed(); |
| } |
| |
| public void onStop() { |
| lifecycleChannel.appIsPaused(); |
| } |
| |
| public void onMemoryPressure() { |
| mNativeView.getFlutterJNI().notifyLowMemoryWarning(); |
| systemChannel.sendMemoryPressureWarning(); |
| } |
| |
| /** |
| * Returns true if the Flutter experience associated with this {@code FlutterView} has rendered |
| * its first frame, or false otherwise. |
| */ |
| public boolean hasRenderedFirstFrame() { |
| return didRenderFirstFrame; |
| } |
| |
| /** |
| * Provide a listener that will be called once when the FlutterView renders its first frame to the |
| * underlaying SurfaceView. |
| */ |
| public void addFirstFrameListener(FirstFrameListener listener) { |
| mFirstFrameListeners.add(listener); |
| } |
| |
| /** Remove an existing first frame listener. */ |
| public void removeFirstFrameListener(FirstFrameListener listener) { |
| mFirstFrameListeners.remove(listener); |
| } |
| |
| /** |
| * Reverts this back to the {@link SurfaceView} defaults, at the back of its window and opaque. |
| */ |
| public void disableTransparentBackground() { |
| setZOrderOnTop(false); |
| getHolder().setFormat(PixelFormat.OPAQUE); |
| } |
| |
| public void setInitialRoute(String route) { |
| navigationChannel.setInitialRoute(route); |
| } |
| |
| public void pushRoute(String route) { |
| navigationChannel.pushRoute(route); |
| } |
| |
| public void popRoute() { |
| navigationChannel.popRoute(); |
| } |
| |
| private void sendUserPlatformSettingsToDart() { |
| // Lookup the current brightness of the Android OS. |
| boolean isNightModeOn = |
| (getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK) |
| == Configuration.UI_MODE_NIGHT_YES; |
| SettingsChannel.PlatformBrightness brightness = |
| isNightModeOn |
| ? SettingsChannel.PlatformBrightness.dark |
| : SettingsChannel.PlatformBrightness.light; |
| |
| settingsChannel |
| .startMessage() |
| .setTextScaleFactor(getResources().getConfiguration().fontScale) |
| .setUse24HourFormat(DateFormat.is24HourFormat(getContext())) |
| .setPlatformBrightness(brightness) |
| .send(); |
| } |
| |
| @Override |
| protected void onConfigurationChanged(Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| mLocalizationPlugin.sendLocalesToFlutter(newConfig); |
| sendUserPlatformSettingsToDart(); |
| } |
| |
| float getDevicePixelRatio() { |
| return mMetrics.devicePixelRatio; |
| } |
| |
| public FlutterNativeView detach() { |
| if (!isAttached()) return null; |
| getHolder().removeCallback(mSurfaceCallback); |
| mNativeView.detachFromFlutterView(); |
| |
| FlutterNativeView view = mNativeView; |
| mNativeView = null; |
| return view; |
| } |
| |
| public void destroy() { |
| if (!isAttached()) return; |
| |
| getHolder().removeCallback(mSurfaceCallback); |
| releaseAccessibilityNodeProvider(); |
| |
| mNativeView.destroy(); |
| mNativeView = null; |
| } |
| |
| @Override |
| public InputConnection onCreateInputConnection(EditorInfo outAttrs) { |
| return mTextInputPlugin.createInputConnection(this, mKeyboardManager, outAttrs); |
| } |
| |
| @Override |
| public boolean checkInputConnectionProxy(View view) { |
| return mNativeView |
| .getPluginRegistry() |
| .getPlatformViewsController() |
| .checkInputConnectionProxy(view); |
| } |
| |
| @Override |
| public void onProvideAutofillVirtualStructure(ViewStructure structure, int flags) { |
| super.onProvideAutofillVirtualStructure(structure, flags); |
| mTextInputPlugin.onProvideAutofillVirtualStructure(structure, flags); |
| } |
| |
| @Override |
| public void autofill(SparseArray<AutofillValue> values) { |
| mTextInputPlugin.autofill(values); |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent event) { |
| if (!isAttached()) { |
| return super.onTouchEvent(event); |
| } |
| |
| // TODO(abarth): This version check might not be effective in some |
| // versions of Android that statically compile code and will be upset |
| // at the lack of |requestUnbufferedDispatch|. Instead, we should factor |
| // version-dependent code into separate classes for each supported |
| // version and dispatch dynamically. |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { |
| requestUnbufferedDispatch(event); |
| } |
| |
| return androidTouchProcessor.onTouchEvent(event); |
| } |
| |
| @Override |
| public boolean onHoverEvent(MotionEvent event) { |
| if (!isAttached()) { |
| return super.onHoverEvent(event); |
| } |
| |
| boolean handled = mAccessibilityNodeProvider.onAccessibilityHoverEvent(event); |
| if (!handled) { |
| // TODO(ianh): Expose hover events to the platform, |
| // implementing ADD, REMOVE, etc. |
| } |
| return handled; |
| } |
| |
| /** |
| * Invoked by Android when a generic motion event occurs, e.g., joystick movement, mouse hover, |
| * track pad touches, scroll wheel movements, etc. |
| * |
| * <p>Flutter handles all of its own gesture detection and processing, therefore this method |
| * forwards all {@link MotionEvent} data from Android to Flutter. |
| */ |
| @Override |
| public boolean onGenericMotionEvent(MotionEvent event) { |
| boolean handled = isAttached() && androidTouchProcessor.onGenericMotionEvent(event); |
| return handled ? true : super.onGenericMotionEvent(event); |
| } |
| |
| @Override |
| protected void onSizeChanged(int width, int height, int oldWidth, int oldHeight) { |
| mMetrics.physicalWidth = width; |
| mMetrics.physicalHeight = height; |
| updateViewportMetrics(); |
| super.onSizeChanged(width, height, oldWidth, oldHeight); |
| } |
| |
| // TODO(garyq): Add support for notch cutout API |
| // Decide if we want to zero the padding of the sides. When in Landscape orientation, |
| // android may decide to place the software navigation bars on the side. When the nav |
| // bar is hidden, the reported insets should be removed to prevent extra useless space |
| // on the sides. |
| private enum ZeroSides { |
| NONE, |
| LEFT, |
| RIGHT, |
| BOTH |
| } |
| |
| private ZeroSides calculateShouldZeroSides() { |
| // We get both orientation and rotation because rotation is all 4 |
| // rotations relative to default rotation while orientation is portrait |
| // or landscape. By combining both, we can obtain a more precise measure |
| // of the rotation. |
| Context context = getContext(); |
| int orientation = context.getResources().getConfiguration().orientation; |
| int rotation = |
| ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)) |
| .getDefaultDisplay() |
| .getRotation(); |
| |
| if (orientation == Configuration.ORIENTATION_LANDSCAPE) { |
| if (rotation == Surface.ROTATION_90) { |
| return ZeroSides.RIGHT; |
| } else if (rotation == Surface.ROTATION_270) { |
| // In android API >= 23, the nav bar always appears on the "bottom" (USB) side. |
| return Build.VERSION.SDK_INT >= 23 ? ZeroSides.LEFT : ZeroSides.RIGHT; |
| } |
| // Ambiguous orientation due to landscape left/right default. Zero both sides. |
| else if (rotation == Surface.ROTATION_0 || rotation == Surface.ROTATION_180) { |
| return ZeroSides.BOTH; |
| } |
| } |
| // Square orientation deprecated in API 16, we will not check for it and return false |
| // to be safe and not remove any unique padding for the devices that do use it. |
| return ZeroSides.NONE; |
| } |
| |
| // TODO(garyq): Use new Android R getInsets API |
| // TODO(garyq): The keyboard detection may interact strangely with |
| // https://github.com/flutter/flutter/issues/22061 |
| |
| // Uses inset heights and screen heights as a heuristic to determine if the insets should |
| // be padded. When the on-screen keyboard is detected, we want to include the full inset |
| // but when the inset is just the hidden nav bar, we want to provide a zero inset so the space |
| // can be used. |
| @TargetApi(20) |
| @RequiresApi(20) |
| private int guessBottomKeyboardInset(WindowInsets insets) { |
| int screenHeight = getRootView().getHeight(); |
| // Magic number due to this being a heuristic. This should be replaced, but we have not |
| // found a clean way to do it yet (Sept. 2018) |
| final double keyboardHeightRatioHeuristic = 0.18; |
| if (insets.getSystemWindowInsetBottom() < screenHeight * keyboardHeightRatioHeuristic) { |
| // Is not a keyboard, so return zero as inset. |
| return 0; |
| } else { |
| // Is a keyboard, so return the full inset. |
| return insets.getSystemWindowInsetBottom(); |
| } |
| } |
| |
| // This callback is not present in API < 20, which means lower API devices will see |
| // the wider than expected padding when the status and navigation bars are hidden. |
| // The annotations to suppress "InlinedApi" and "NewApi" lints prevent lint warnings |
| // caused by usage of Android Q APIs. These calls are safe because they are |
| // guarded. |
| @Override |
| @TargetApi(20) |
| @RequiresApi(20) |
| @SuppressLint({"InlinedApi", "NewApi"}) |
| public final WindowInsets onApplyWindowInsets(WindowInsets insets) { |
| // getSystemGestureInsets() was introduced in API 29 and immediately deprecated in 30. |
| if (Build.VERSION.SDK_INT == Build.VERSION_CODES.Q) { |
| Insets systemGestureInsets = insets.getSystemGestureInsets(); |
| mMetrics.systemGestureInsetTop = systemGestureInsets.top; |
| mMetrics.systemGestureInsetRight = systemGestureInsets.right; |
| mMetrics.systemGestureInsetBottom = systemGestureInsets.bottom; |
| mMetrics.systemGestureInsetLeft = systemGestureInsets.left; |
| } |
| |
| boolean statusBarVisible = (SYSTEM_UI_FLAG_FULLSCREEN & getWindowSystemUiVisibility()) == 0; |
| boolean navigationBarVisible = |
| (SYSTEM_UI_FLAG_HIDE_NAVIGATION & getWindowSystemUiVisibility()) == 0; |
| |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) { |
| int mask = 0; |
| if (navigationBarVisible) { |
| mask = mask | android.view.WindowInsets.Type.navigationBars(); |
| } |
| if (statusBarVisible) { |
| mask = mask | android.view.WindowInsets.Type.statusBars(); |
| } |
| Insets uiInsets = insets.getInsets(mask); |
| mMetrics.physicalViewPaddingTop = uiInsets.top; |
| mMetrics.physicalViewPaddingRight = uiInsets.right; |
| mMetrics.physicalViewPaddingBottom = uiInsets.bottom; |
| mMetrics.physicalViewPaddingLeft = uiInsets.left; |
| |
| Insets imeInsets = insets.getInsets(android.view.WindowInsets.Type.ime()); |
| mMetrics.physicalViewInsetTop = imeInsets.top; |
| mMetrics.physicalViewInsetRight = imeInsets.right; |
| mMetrics.physicalViewInsetBottom = imeInsets.bottom; // Typically, only bottom is non-zero |
| mMetrics.physicalViewInsetLeft = imeInsets.left; |
| |
| Insets systemGestureInsets = |
| insets.getInsets(android.view.WindowInsets.Type.systemGestures()); |
| mMetrics.systemGestureInsetTop = systemGestureInsets.top; |
| mMetrics.systemGestureInsetRight = systemGestureInsets.right; |
| mMetrics.systemGestureInsetBottom = systemGestureInsets.bottom; |
| mMetrics.systemGestureInsetLeft = systemGestureInsets.left; |
| |
| // TODO(garyq): Expose the full rects of the display cutout. |
| |
| // Take the max of the display cutout insets and existing padding to merge them |
| DisplayCutout cutout = insets.getDisplayCutout(); |
| if (cutout != null) { |
| Insets waterfallInsets = cutout.getWaterfallInsets(); |
| mMetrics.physicalViewPaddingTop = |
| Math.max( |
| Math.max(mMetrics.physicalViewPaddingTop, waterfallInsets.top), |
| cutout.getSafeInsetTop()); |
| mMetrics.physicalViewPaddingRight = |
| Math.max( |
| Math.max(mMetrics.physicalViewPaddingRight, waterfallInsets.right), |
| cutout.getSafeInsetRight()); |
| mMetrics.physicalViewPaddingBottom = |
| Math.max( |
| Math.max(mMetrics.physicalViewPaddingBottom, waterfallInsets.bottom), |
| cutout.getSafeInsetBottom()); |
| mMetrics.physicalViewPaddingLeft = |
| Math.max( |
| Math.max(mMetrics.physicalViewPaddingLeft, waterfallInsets.left), |
| cutout.getSafeInsetLeft()); |
| } |
| } else { |
| // We zero the left and/or right sides to prevent the padding the |
| // navigation bar would have caused. |
| ZeroSides zeroSides = ZeroSides.NONE; |
| if (!navigationBarVisible) { |
| zeroSides = calculateShouldZeroSides(); |
| } |
| |
| // Status bar (top), navigation bar (bottom) and left/right system insets should |
| // partially obscure the content (padding). |
| mMetrics.physicalViewPaddingTop = statusBarVisible ? insets.getSystemWindowInsetTop() : 0; |
| mMetrics.physicalViewPaddingRight = |
| zeroSides == ZeroSides.RIGHT || zeroSides == ZeroSides.BOTH |
| ? 0 |
| : insets.getSystemWindowInsetRight(); |
| mMetrics.physicalViewPaddingBottom = |
| navigationBarVisible && guessBottomKeyboardInset(insets) == 0 |
| ? insets.getSystemWindowInsetBottom() |
| : 0; |
| mMetrics.physicalViewPaddingLeft = |
| zeroSides == ZeroSides.LEFT || zeroSides == ZeroSides.BOTH |
| ? 0 |
| : insets.getSystemWindowInsetLeft(); |
| |
| // Bottom system inset (keyboard) should adjust scrollable bottom edge (inset). |
| mMetrics.physicalViewInsetTop = 0; |
| mMetrics.physicalViewInsetRight = 0; |
| mMetrics.physicalViewInsetBottom = guessBottomKeyboardInset(insets); |
| mMetrics.physicalViewInsetLeft = 0; |
| } |
| |
| updateViewportMetrics(); |
| return super.onApplyWindowInsets(insets); |
| } |
| |
| @Override |
| @SuppressWarnings("deprecation") |
| protected boolean fitSystemWindows(Rect insets) { |
| if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) { |
| // Status bar, left/right system insets partially obscure content (padding). |
| mMetrics.physicalViewPaddingTop = insets.top; |
| mMetrics.physicalViewPaddingRight = insets.right; |
| mMetrics.physicalViewPaddingBottom = 0; |
| mMetrics.physicalViewPaddingLeft = insets.left; |
| |
| // Bottom system inset (keyboard) should adjust scrollable bottom edge (inset). |
| mMetrics.physicalViewInsetTop = 0; |
| mMetrics.physicalViewInsetRight = 0; |
| mMetrics.physicalViewInsetBottom = insets.bottom; |
| mMetrics.physicalViewInsetLeft = 0; |
| updateViewportMetrics(); |
| return true; |
| } else { |
| return super.fitSystemWindows(insets); |
| } |
| } |
| |
| private boolean isAttached() { |
| return mNativeView != null && mNativeView.isAttached(); |
| } |
| |
| void assertAttached() { |
| if (!isAttached()) throw new AssertionError("Platform view is not attached"); |
| } |
| |
| private void preRun() { |
| resetAccessibilityTree(); |
| } |
| |
| void resetAccessibilityTree() { |
| if (mAccessibilityNodeProvider != null) { |
| mAccessibilityNodeProvider.reset(); |
| } |
| } |
| |
| private void postRun() {} |
| |
| public void runFromBundle(FlutterRunArguments args) { |
| assertAttached(); |
| preRun(); |
| mNativeView.runFromBundle(args); |
| postRun(); |
| } |
| |
| /** |
| * Return the most recent frame as a bitmap. |
| * |
| * @return A bitmap. |
| */ |
| public Bitmap getBitmap() { |
| assertAttached(); |
| return mNativeView.getFlutterJNI().getBitmap(); |
| } |
| |
| private void updateViewportMetrics() { |
| if (!isAttached()) return; |
| mNativeView |
| .getFlutterJNI() |
| .setViewportMetrics( |
| mMetrics.devicePixelRatio, |
| mMetrics.physicalWidth, |
| mMetrics.physicalHeight, |
| mMetrics.physicalViewPaddingTop, |
| mMetrics.physicalViewPaddingRight, |
| mMetrics.physicalViewPaddingBottom, |
| mMetrics.physicalViewPaddingLeft, |
| mMetrics.physicalViewInsetTop, |
| mMetrics.physicalViewInsetRight, |
| mMetrics.physicalViewInsetBottom, |
| mMetrics.physicalViewInsetLeft, |
| mMetrics.systemGestureInsetTop, |
| mMetrics.systemGestureInsetRight, |
| mMetrics.systemGestureInsetBottom, |
| mMetrics.systemGestureInsetLeft, |
| mMetrics.physicalTouchSlop); |
| } |
| |
| // Called by FlutterNativeView to notify first Flutter frame rendered. |
| public void onFirstFrame() { |
| didRenderFirstFrame = true; |
| |
| // Allow listeners to remove themselves when they are called. |
| List<FirstFrameListener> listeners = new ArrayList<>(mFirstFrameListeners); |
| for (FirstFrameListener listener : listeners) { |
| listener.onFirstFrame(); |
| } |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| |
| PlatformViewsController platformViewsController = |
| getPluginRegistry().getPlatformViewsController(); |
| mAccessibilityNodeProvider = |
| new AccessibilityBridge( |
| this, |
| new AccessibilityChannel(dartExecutor, getFlutterNativeView().getFlutterJNI()), |
| (AccessibilityManager) getContext().getSystemService(Context.ACCESSIBILITY_SERVICE), |
| getContext().getContentResolver(), |
| platformViewsController); |
| mAccessibilityNodeProvider.setOnAccessibilityChangeListener(onAccessibilityChangeListener); |
| |
| resetWillNotDraw( |
| mAccessibilityNodeProvider.isAccessibilityEnabled(), |
| mAccessibilityNodeProvider.isTouchExplorationEnabled()); |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| releaseAccessibilityNodeProvider(); |
| } |
| |
| // TODO(mattcarroll): Confer with Ian as to why we need this method. Delete if possible, otherwise |
| // add comments. |
| private void resetWillNotDraw(boolean isAccessibilityEnabled, boolean isTouchExplorationEnabled) { |
| if (!mIsSoftwareRenderingEnabled) { |
| setWillNotDraw(!(isAccessibilityEnabled || isTouchExplorationEnabled)); |
| } else { |
| setWillNotDraw(false); |
| } |
| } |
| |
| @Override |
| public AccessibilityNodeProvider getAccessibilityNodeProvider() { |
| if (mAccessibilityNodeProvider != null && mAccessibilityNodeProvider.isAccessibilityEnabled()) { |
| return mAccessibilityNodeProvider; |
| } else { |
| // TODO(goderbauer): when a11y is off this should return a one-off snapshot of |
| // the a11y |
| // tree. |
| return null; |
| } |
| } |
| |
| private void releaseAccessibilityNodeProvider() { |
| if (mAccessibilityNodeProvider != null) { |
| mAccessibilityNodeProvider.release(); |
| mAccessibilityNodeProvider = null; |
| } |
| } |
| |
| @Override |
| @TargetApi(Build.VERSION_CODES.N) |
| @RequiresApi(Build.VERSION_CODES.N) |
| @NonNull |
| public PointerIcon getSystemPointerIcon(int type) { |
| return PointerIcon.getSystemIcon(getContext(), type); |
| } |
| |
| @Override |
| @UiThread |
| public TaskQueue makeBackgroundTaskQueue() { |
| return null; |
| } |
| |
| @Override |
| @UiThread |
| public void send(String channel, ByteBuffer message) { |
| send(channel, message, null); |
| } |
| |
| @Override |
| @UiThread |
| public void send(String channel, ByteBuffer message, BinaryReply callback) { |
| if (!isAttached()) { |
| Log.d(TAG, "FlutterView.send called on a detached view, channel=" + channel); |
| return; |
| } |
| mNativeView.send(channel, message, callback); |
| } |
| |
| @Override |
| @UiThread |
| public void setMessageHandler(String channel, BinaryMessageHandler handler, TaskQueue taskQueue) { |
| mNativeView.setMessageHandler(channel, handler, taskQueue); |
| } |
| |
| /** Listener will be called on the Android UI thread once when Flutter renders the first frame. */ |
| public interface FirstFrameListener { |
| void onFirstFrame(); |
| } |
| |
| @Override |
| public TextureRegistry.SurfaceTextureEntry createSurfaceTexture() { |
| final SurfaceTexture surfaceTexture = new SurfaceTexture(0); |
| return registerSurfaceTexture(surfaceTexture); |
| } |
| |
| @Override |
| public TextureRegistry.SurfaceTextureEntry registerSurfaceTexture( |
| @NonNull SurfaceTexture surfaceTexture) { |
| surfaceTexture.detachFromGLContext(); |
| final SurfaceTextureRegistryEntry entry = |
| new SurfaceTextureRegistryEntry(nextTextureId.getAndIncrement(), surfaceTexture); |
| mNativeView.getFlutterJNI().registerTexture(entry.id(), entry.textureWrapper()); |
| return entry; |
| } |
| |
| final class SurfaceTextureRegistryEntry implements TextureRegistry.SurfaceTextureEntry { |
| private final long id; |
| private final SurfaceTextureWrapper textureWrapper; |
| private boolean released; |
| |
| SurfaceTextureRegistryEntry(long id, SurfaceTexture surfaceTexture) { |
| this.id = id; |
| this.textureWrapper = new SurfaceTextureWrapper(surfaceTexture); |
| |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { |
| // The callback relies on being executed on the UI thread (unsynchronised read of |
| // mNativeView |
| // and also the engine code check for platform thread in |
| // Shell::OnPlatformViewMarkTextureFrameAvailable), |
| // so we explicitly pass a Handler for the current thread. |
| this.surfaceTexture().setOnFrameAvailableListener(onFrameListener, new Handler()); |
| } else { |
| // Android documentation states that the listener can be called on an arbitrary thread. |
| // But in practice, versions of Android that predate the newer API will call the listener |
| // on the thread where the SurfaceTexture was constructed. |
| this.surfaceTexture().setOnFrameAvailableListener(onFrameListener); |
| } |
| } |
| |
| private SurfaceTexture.OnFrameAvailableListener onFrameListener = |
| new SurfaceTexture.OnFrameAvailableListener() { |
| @Override |
| public void onFrameAvailable(SurfaceTexture texture) { |
| if (released || mNativeView == null) { |
| // Even though we make sure to unregister the callback before releasing, as of Android |
| // O |
| // SurfaceTexture has a data race when accessing the callback, so the callback may |
| // still be called by a stale reference after released==true and mNativeView==null. |
| return; |
| } |
| mNativeView |
| .getFlutterJNI() |
| .markTextureFrameAvailable(SurfaceTextureRegistryEntry.this.id); |
| } |
| }; |
| |
| public SurfaceTextureWrapper textureWrapper() { |
| return textureWrapper; |
| } |
| |
| @Override |
| public SurfaceTexture surfaceTexture() { |
| return textureWrapper.surfaceTexture(); |
| } |
| |
| @Override |
| public long id() { |
| return id; |
| } |
| |
| @Override |
| public void release() { |
| if (released) { |
| return; |
| } |
| released = true; |
| |
| // The ordering of the next 3 calls is important: |
| // First we remove the frame listener, then we release the SurfaceTexture, and only after we |
| // unregister |
| // the texture which actually deletes the GL texture. |
| |
| // Otherwise onFrameAvailableListener might be called after mNativeView==null |
| // (https://github.com/flutter/flutter/issues/20951). See also the check in onFrameAvailable. |
| surfaceTexture().setOnFrameAvailableListener(null); |
| textureWrapper.release(); |
| mNativeView.getFlutterJNI().unregisterTexture(id); |
| } |
| } |
| } |
