Commit 64c5f0c3 authored May 18, 2018 by Tetsutoki Shiozawa Committed by Jorim Jaggi May 22, 2018

[WindowManager] Perform relayout after hiding-window animation

Symptom:
If navibar has been hidden by SYSTEM_UI_FLAG_HIDE_NAVIGATION flag,
it's hard to be shown again. Even though you perform a swipe-from-bottom
gesture, the navibar is not shown.

Root cause:
NavigationBar transition status is not updated. BarController waits for
the next hiding event but it's not notified. And then, BarController
gets a showing request before the previous hiding request is completed.
BarController loses the right transition status.

Solution:
Perform layout after hiding-window animation even if the window does
not have a focus. Relayout makes a chance to BarController to check
whether the navibar is completely hidden or not.

Bug: 80064019
Change-Id: I4c9511643992ea2db250c1deaf18c8d94cc5b61f

parent 6df95fa0

services/core/java/com/android/server/wm/WindowState.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -2298,8 +2298,8 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
		if (DEBUG_FOCUS_LIGHT) Slog.i(TAG,
		"setAnimationLocked: setting mFocusMayChange true");
		mService.mFocusMayChange = true;
		setDisplayLayoutNeeded();
		}
		setDisplayLayoutNeeded();
		// Window is no longer visible -- make sure if we were waiting
		// for it to be displayed before enabling the display, that
		// we allow the display to be enabled now.