Merge "Add clear all animation to Recents Go." into ub-launcher3-master (a978f4d7) · Commits · e / os / android_packages_apps_Trebuchet

go/quickstep/src/com/android/quickstep/TaskActionController.java

+0 −1

Original line number	Diff line number	Diff line
		@@ -71,7 +71,6 @@ public final class TaskActionController {
		* Clears all tasks and updates the model and view.
		*/
		public void clearAllTasks() {
		// TODO: Play an animation so transition is more natural.
		int count = mAdapter.getItemCount();
		ActivityManagerWrapper.getInstance().removeAllRecentTasks();
		mLoader.clearAllTasks();

go/quickstep/src/com/android/quickstep/views/IconRecentsView.java

+79 −1

Original line number	Diff line number	Diff line
		@@ -19,6 +19,10 @@ import static androidx.recyclerview.widget.LinearLayoutManager.VERTICAL;

		import android.animation.Animator;
		import android.animation.AnimatorListenerAdapter;
		import android.animation.AnimatorSet;
		import android.animation.ObjectAnimator;
		import android.animation.PropertyValuesHolder;
		import android.animation.ValueAnimator;
		import android.content.Context;
		import android.util.AttributeSet;
		import android.util.FloatProperty;
		@@ -65,6 +69,10 @@ public final class IconRecentsView extends FrameLayout {
		}
		};
		private static final long CROSSFADE_DURATION = 300;
		private static final long ITEM_ANIMATE_OUT_DURATION = 150;
		private static final long ITEM_ANIMATE_OUT_DELAY_BETWEEN = 40;
		private static final float ITEM_ANIMATE_OUT_TRANSLATION_X_RATIO = .25f;
		private static final long CLEAR_ALL_FADE_DELAY = 120;

		/**
		* A ratio representing the view's relative placement within its padded space. For example, 0
		@@ -119,7 +127,7 @@ public final class IconRecentsView extends FrameLayout {
		});

		View clearAllView = findViewById(R.id.clear_all_button);
		clearAllView.setOnClickListener(v -> mTaskActionController.clearAllTasks());
		clearAllView.setOnClickListener(v -> animateClearAllTasks());
		}
		}

		@@ -194,6 +202,76 @@ public final class IconRecentsView extends FrameLayout {
		return view.getThumbnailView();
		}

		/**
		* Clear all tasks and animate out.
		*/
		private void animateClearAllTasks() {
		TaskItemView[] itemViews = getTaskViews();

		AnimatorSet clearAnim = new AnimatorSet();
		long currentDelay = 0;

		// Animate each item view to the right and fade out.
		for (TaskItemView itemView : itemViews) {
		PropertyValuesHolder transXproperty = PropertyValuesHolder.ofFloat(TRANSLATION_X,
		0, itemView.getWidth() * ITEM_ANIMATE_OUT_TRANSLATION_X_RATIO);
		PropertyValuesHolder alphaProperty = PropertyValuesHolder.ofFloat(ALPHA, 1.0f, 0f);
		ObjectAnimator itemAnim = ObjectAnimator.ofPropertyValuesHolder(itemView,
		transXproperty, alphaProperty);
		itemAnim.setDuration(ITEM_ANIMATE_OUT_DURATION);
		itemAnim.setStartDelay(currentDelay);

		clearAnim.play(itemAnim);
		currentDelay += ITEM_ANIMATE_OUT_DELAY_BETWEEN;
		}

		// Animate view fading and leave recents when faded enough.
		ValueAnimator contentAlpha = ValueAnimator.ofFloat(1.0f, 0f)
		.setDuration(CROSSFADE_DURATION);
		contentAlpha.setStartDelay(CLEAR_ALL_FADE_DELAY);
		contentAlpha.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
		private boolean mLeftRecents = false;

		@Override
		public void onAnimationUpdate(ValueAnimator valueAnimator) {
		mContentView.setAlpha((float) valueAnimator.getAnimatedValue());
		// Leave recents while fading out.
		if ((float) valueAnimator.getAnimatedValue() < .5f && !mLeftRecents) {
		mActivityHelper.leaveRecents();
		mLeftRecents = true;
		}
		}
		});

		clearAnim.play(contentAlpha);
		clearAnim.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(Animator animation) {
		for (TaskItemView itemView : itemViews) {
		itemView.setTranslationX(0);
		itemView.setAlpha(1.0f);
		}
		mContentView.setVisibility(GONE);
		mTaskActionController.clearAllTasks();
		}
		});
		clearAnim.start();
		}

		/**
		* Get attached task item views ordered by most recent.
		*
		* @return array of attached task item views
		*/
		private TaskItemView[] getTaskViews() {
		int taskCount = mTaskRecyclerView.getChildCount();
		TaskItemView[] itemViews = new TaskItemView[taskCount];
		for (int i = 0; i < taskCount; i ++) {
		itemViews[i] = (TaskItemView) mTaskRecyclerView.getChildAt(i);
		}
		return itemViews;
		}

		/**
		* Update the content view so that the appropriate view is shown based off the current list
		* of tasks.