commit 6482df5602b083eb6b8cc512a2e71f0f297c48b9
author Jorim Jaggi <jjaggi@google.com> Wed Jun 26 17:35:32 2019 +0200
committer Jorim Jaggi <jjaggi@google.com> Thu Jun 27 11:15:14 2019 +0000
tree 0e0e14af7b7d9a191cd52cd584ad641537afe579
parent 13775aa4bbe612287414571e6581770c0be9d750

Request invalidate root when legacy nav bar bg changes

...because only invalidating the root window node will ensure that
onPostDraw() will be called again.

Test: Open com.planeth.rhythm
Fixes: 135207159
Change-Id: I03f814eb7435d91287968f3dcb72f579ab4a35ed

core/java/com/android/internal/policy/DecorView.java

diff --git a/core/java/com/android/internal/policy/DecorView.java b/core/java/com/android/internal/policy/DecorView.java
index afe7954..6f4f337 100644
--- a/core/java/com/android/internal/policy/DecorView.java
+++ b/core/java/com/android/internal/policy/DecorView.java
@@ -84,6 +84,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewOutlineProvider;
+import android.view.ViewRootImpl;
 import android.view.ViewStub;
 import android.view.ViewTreeObserver;
 import android.view.Window;
@@ -1150,8 +1151,15 @@
                     navBarToRightEdge || navBarToLeftEdge, navBarToLeftEdge,
                     0 /* sideInset */, animate && !disallowAnimate,
                     mForceWindowDrawsBarBackgrounds);
+            boolean oldDrawLegacy = mDrawLegacyNavigationBarBackground;
             mDrawLegacyNavigationBarBackground = mNavigationColorViewState.visible
                     && (mWindow.getAttributes().flags & FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) == 0;
+            if (oldDrawLegacy != mDrawLegacyNavigationBarBackground) {
+                ViewRootImpl vri = getViewRootImpl();
+                if (vri != null) {
+                    vri.requestInvalidateRootRenderNode();
+                }
+            }
 
             boolean statusBarNeedsRightInset = navBarToRightEdge
                     && mNavigationColorViewState.present;