Merge "Add clear all animation to Recents Go." into ub-launcher3-master
diff --git a/go/quickstep/src/com/android/quickstep/TaskActionController.java b/go/quickstep/src/com/android/quickstep/TaskActionController.java
index b2d495b..77b287b 100644
--- a/go/quickstep/src/com/android/quickstep/TaskActionController.java
+++ b/go/quickstep/src/com/android/quickstep/TaskActionController.java
@@ -71,7 +71,6 @@
* 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();
diff --git a/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java b/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java
index a1d62c2..1e01725 100644
--- a/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java
+++ b/go/quickstep/src/com/android/quickstep/views/IconRecentsView.java
@@ -19,6 +19,10 @@
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 @@
}
};
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 @@
});
View clearAllView = findViewById(R.id.clear_all_button);
- clearAllView.setOnClickListener(v -> mTaskActionController.clearAllTasks());
+ clearAllView.setOnClickListener(v -> animateClearAllTasks());
}
}
@@ -195,6 +203,76 @@
}
/**
+ * 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.
*/