[automerge] Offset animation layer for TaskFragment open/close 2p: 06617390e3 (26351e28) · Commits · e / os / android_frameworks_base

libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/TaskFragmentAnimationAdapter.java

+18 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,12 @@ import androidx.annotation.NonNull;
		* The base adapter can be used for {@link RemoteAnimationTarget} that is simple open/close.
		*/
		class TaskFragmentAnimationAdapter {

		/**
		* If {@link #mOverrideLayer} is set to this value, we don't want to override the surface layer.
		*/
		private static final int LAYER_NO_OVERRIDE = -1;

		final Animation mAnimation;
		final RemoteAnimationTarget mTarget;
		final SurfaceControl mLeash;
		@@ -42,6 +48,7 @@ class TaskFragmentAnimationAdapter {
		final float[] mVecs = new float[4];
		final Rect mRect = new Rect();
		private boolean mIsFirstFrame = true;
		private int mOverrideLayer = LAYER_NO_OVERRIDE;

		TaskFragmentAnimationAdapter(@NonNull Animation animation,
		@NonNull RemoteAnimationTarget target) {
		@@ -58,10 +65,21 @@ class TaskFragmentAnimationAdapter {
		mLeash = leash;
		}

		/**
		* Surface layer to be set at the first frame of the animation. We will not set the layer if it
		* is set to {@link #LAYER_NO_OVERRIDE}.
		*/
		final void overrideLayer(int layer) {
		mOverrideLayer = layer;
		}

		/** Called on frame update. */
		final void onAnimationUpdate(@NonNull SurfaceControl.Transaction t, long currentPlayTime) {
		if (mIsFirstFrame) {
		t.show(mLeash);
		if (mOverrideLayer != LAYER_NO_OVERRIDE) {
		t.setLayer(mLeash, mOverrideLayer);
		}
		mIsFirstFrame = false;
		}

libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/TaskFragmentAnimationRunner.java

+23 −7

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@ import static android.view.WindowManager.TRANSIT_OLD_TASK_FRAGMENT_CHANGE;
		import static android.view.WindowManager.TRANSIT_OLD_TASK_FRAGMENT_CLOSE;
		import static android.view.WindowManager.TRANSIT_OLD_TASK_FRAGMENT_OPEN;
		import static android.view.WindowManager.TRANSIT_OLD_TASK_OPEN;
		import static android.view.WindowManagerPolicyConstants.TYPE_LAYER_OFFSET;

		import android.animation.Animator;
		import android.animation.ValueAnimator;
		@@ -181,18 +182,22 @@ class TaskFragmentAnimationRunner extends IRemoteAnimationRunner.Stub {

		private List<TaskFragmentAnimationAdapter> createOpenAnimationAdapters(
		@NonNull RemoteAnimationTarget[] targets) {
		return createOpenCloseAnimationAdapters(targets,
		return createOpenCloseAnimationAdapters(targets, true /* isOpening */,
		mAnimationSpec::loadOpenAnimation);
		}

		private List<TaskFragmentAnimationAdapter> createCloseAnimationAdapters(
		@NonNull RemoteAnimationTarget[] targets) {
		return createOpenCloseAnimationAdapters(targets,
		return createOpenCloseAnimationAdapters(targets, false /* isOpening */,
		mAnimationSpec::loadCloseAnimation);
		}

		/**
		* Creates {@link TaskFragmentAnimationAdapter} for OPEN and CLOSE types of transition.
		* @param isOpening {@code true} for OPEN type, {@code false} for CLOSE type.
		*/
		private List<TaskFragmentAnimationAdapter> createOpenCloseAnimationAdapters(
		@NonNull RemoteAnimationTarget[] targets,
		@NonNull RemoteAnimationTarget[] targets, boolean isOpening,
		@NonNull BiFunction<RemoteAnimationTarget, Rect, Animation> animationProvider) {
		// We need to know if the target window is only a partial of the whole animation screen.
		// If so, we will need to adjust it to make the whole animation screen looks like one.
		@@ -210,14 +215,25 @@ class TaskFragmentAnimationRunner extends IRemoteAnimationRunner.Stub {
		}
		}

		// For OPEN transition, open windows should be above close windows.
		// For CLOSE transition, open windows should be below close windows.
		int offsetLayer = TYPE_LAYER_OFFSET;
		final List<TaskFragmentAnimationAdapter> adapters = new ArrayList<>();
		for (RemoteAnimationTarget target : openingTargets) {
		adapters.add(createOpenCloseAnimationAdapter(target, animationProvider,
		openingWholeScreenBounds));
		final TaskFragmentAnimationAdapter adapter = createOpenCloseAnimationAdapter(target,
		animationProvider, openingWholeScreenBounds);
		if (isOpening) {
		adapter.overrideLayer(offsetLayer++);
		}
		adapters.add(adapter);
		}
		for (RemoteAnimationTarget target : closingTargets) {
		adapters.add(createOpenCloseAnimationAdapter(target, animationProvider,
		closingWholeScreenBounds));
		final TaskFragmentAnimationAdapter adapter = createOpenCloseAnimationAdapter(target,
		animationProvider, closingWholeScreenBounds);
		if (!isOpening) {
		adapter.overrideLayer(offsetLayer++);
		}
		adapters.add(adapter);
		}
		return adapters;
		}