Fix blinking bug when no notifications on lockscreen. (ad46ffef) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java

+11 −6

Original line number	Diff line number	Diff line
		@@ -903,10 +903,8 @@ public class NotificationPanelView extends PanelView implements
		}
		}
		private void updateNotificationTranslucency() {
		float alpha = (mNotificationStackScroller.getNotificationsTopY()
		+ mNotificationStackScroller.getItemHeight())
		/ (mQsMinExpansionHeight
		+ mNotificationStackScroller.getItemHeight() / 2);
		float alpha = (getNotificationsTopY() + mNotificationStackScroller.getItemHeight())
		/ (mQsMinExpansionHeight + mNotificationStackScroller.getItemHeight() / 2);
		alpha = Math.max(0, Math.min(alpha, 1));
		alpha = (float) Math.pow(alpha, 0.75);

		@@ -989,7 +987,7 @@ public class NotificationPanelView extends PanelView implements

		// When on Keyguard, we hide the header as soon as the top card of the notification
		// stack scroller is close enough (collision distance) to the bottom of the header.
		alpha = mNotificationStackScroller.getNotificationsTopY()
		alpha = getNotificationsTopY()
		/
		(mQsMinExpansionHeight + mNotificationsHeaderCollideDistance);

		@@ -997,7 +995,7 @@ public class NotificationPanelView extends PanelView implements

		// In SHADE_LOCKED, the top card is already really close to the header. Hide it as
		// soon as we start translating the stack.
		alpha = mNotificationStackScroller.getNotificationsTopY() / mQsMinExpansionHeight;
		alpha = getNotificationsTopY() / mQsMinExpansionHeight;
		}
		alpha = Math.max(0, Math.min(alpha, 1));
		alpha = (float) Math.pow(alpha, 0.75);
		@@ -1006,6 +1004,13 @@ public class NotificationPanelView extends PanelView implements
		setQsTranslation(mQsExpansionHeight);
		}

		private float getNotificationsTopY() {
		if (mNotificationStackScroller.getNotGoneChildCount() == 0) {
		return getExpandedHeight();
		}
		return mNotificationStackScroller.getNotificationsTopY();
		}

		@Override
		protected void onExpandingStarted() {
		super.onExpandingStarted();