Avoid visibility change on navBar view if null

Nav bar view could not be instantiated when changing
navigation modes or when NavigationModeController
notifies of action OVERLAY_CHANGED via its broadcast
receiver.

Fixes: 153275085
Change-Id: I76b96aaded82f3172dad101eb897b286935e448e

1 files changed, 3 insertions, 1 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarFragment.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarFragment.java
index dc1db50549a8..3105155f28e8 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarFragment.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarFragment.java
@@ -625,7 +625,9 @@ public class NavigationBarFragment extends LifecycleFragment implements Callback
             // mOrientedHandle is initialized lazily
             mOrientationHandle.setVisibility(View.GONE);
         }
-        mNavigationBarView.setVisibility(View.VISIBLE);
+        if (mNavigationBarView != null) {
+            mNavigationBarView.setVisibility(View.VISIBLE);
+        }
     }
 
     private int deltaRotation(int oldRotation, int newRotation) {