From c58d756f877b6b63da28be67ac9d9d451721ec72 Mon Sep 17 00:00:00 2001
From: tiger_huang <tiger_huang@htc.com>
Date: Thu, 23 Oct 2014 20:24:19 +0800
Subject: [PATCH] Prevent wrong system ui visibility callback after the user
 swipe

If we return vis without clearing clearable flags, it will be set to
IStatusBarService in updateSystemUiVisibilityLw(), and then be
callbacked to WMS via statusBarVisibilityChanged(), and then be
dispatched to the client; which is wrong because WMS should dispatch
the new value to the client, not the old one.

https://code.google.com/p/android/issues/detail?id=79991

Change-Id: I2a06d1fbe66e854e639d86a39784f8c6a3303674
---
 .../src/com/android/internal/policy/impl/PhoneWindowManager.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
index 07f549048bc8e..0dc66ba93d00f 100644
--- a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -5183,6 +5183,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         if (denyTransientStatus || denyTransientNav) {
             // clear the clearable flags instead
             clearClearableFlagsLw();
+            vis &= ~View.SYSTEM_UI_CLEARABLE_FLAGS;
         }
 
         vis = mStatusBarController.updateVisibilityLw(transientStatusBarAllowed, oldVis, vis);