Add null check in a11y callback

Bug: 65475473
Test: Verified it still builds
Change-Id: I9ad1249c44cb73153066f67164c90333779d284e

diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 22faeed..8f250a9 100644 (file)
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -7714,7 +7714,7 @@ public final class ViewRootImpl implements ViewParent,
         public void onAccessibilityStateChanged(boolean enabled) {
             if (enabled) {
                 ensureConnection();
-                if (mAttachInfo.mHasWindowFocus) {
+                if (mAttachInfo.mHasWindowFocus && (mView != null)) {
                     mView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
                     View focusedView = mView.findFocus();
                     if (focusedView != null && focusedView != mView) {