Merge "fix(magnifier): avoid crash when smashing magnifier shortcut button...

Merge "fix(magnifier): avoid crash when smashing magnifier shortcut button repeatedly" into udc-qpr-dev am: 2d606637

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24761638



Change-Id: I49803b3eeb279940083858460106b2a234bbe3de
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

services/accessibility/java/com/android/server/accessibility/AccessibilityInputFilter.java

@@ -388,11 +388,19 @@ class AccessibilityInputFilter extends InputFilter implements EventStreamTransfo
     @Override
     public void onMotionEvent(MotionEvent transformedEvent, MotionEvent rawEvent,
             int policyFlags) {
+        if (!mInstalled) {
+            Slog.w(TAG, "onMotionEvent called before input filter installed!");
+            return;
+        }
         sendInputEvent(transformedEvent, policyFlags);
     }
 
     @Override
     public void onKeyEvent(KeyEvent event, int policyFlags) {
+        if (!mInstalled) {
+            Slog.w(TAG, "onKeyEvent called before input filter installed!");
+            return;
+        }
         sendInputEvent(event, policyFlags);
     }