Fix one cause of slow scrolling in Recents (67b03701) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/SwipeHelper.java

+16 −12

Original line number	Diff line number	Diff line
		@@ -154,6 +154,13 @@ public class SwipeHelper implements Gefingerpoken {
		return Math.max(mMinAlpha, result);
		}

		private void updateAlphaFromOffset(View animView, boolean dismissable) {
		if (FADE_OUT_DURING_SWIPE && dismissable) {
		animView.setAlpha(getAlphaForOffset(animView));
		}
		invalidateGlobalRegion(animView);
		}

		// invalidate the view's own bounds all the way up the view hierarchy
		public static void invalidateGlobalRegion(View view) {
		invalidateGlobalRegion(
		@@ -290,10 +297,7 @@ public class SwipeHelper implements Gefingerpoken {
		});
		anim.addUpdateListener(new AnimatorUpdateListener() {
		public void onAnimationUpdate(ValueAnimator animation) {
		if (FADE_OUT_DURING_SWIPE && canAnimViewBeDismissed) {
		animView.setAlpha(getAlphaForOffset(animView));
		}
		invalidateGlobalRegion(animView);
		updateAlphaFromOffset(animView, canAnimViewBeDismissed);
		}
		});
		anim.start();
		@@ -307,10 +311,12 @@ public class SwipeHelper implements Gefingerpoken {
		anim.setDuration(duration);
		anim.addUpdateListener(new AnimatorUpdateListener() {
		public void onAnimationUpdate(ValueAnimator animation) {
		if (FADE_OUT_DURING_SWIPE && canAnimViewBeDismissed) {
		animView.setAlpha(getAlphaForOffset(animView));
		updateAlphaFromOffset(animView, canAnimViewBeDismissed);
		}
		invalidateGlobalRegion(animView);
		});
		anim.addListener(new AnimatorListenerAdapter() {
		public void onAnimationEnd(Animator animator) {
		updateAlphaFromOffset(animView, canAnimViewBeDismissed);
		}
		});
		anim.start();
		@@ -347,10 +353,8 @@ public class SwipeHelper implements Gefingerpoken {
		}
		}
		setTranslation(mCurrAnimView, delta);
		if (FADE_OUT_DURING_SWIPE && mCanCurrViewBeDimissed) {
		mCurrAnimView.setAlpha(getAlphaForOffset(mCurrAnimView));
		}
		invalidateGlobalRegion(mCurrView);

		updateAlphaFromOffset(mCurrAnimView, mCanCurrViewBeDimissed);
		}
		break;
		case MotionEvent.ACTION_UP: