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-rw-r--r--core/java/android/app/MediaRouteButton.java3
1 files changed, 2 insertions, 1 deletions
diff --git a/core/java/android/app/MediaRouteButton.java b/core/java/android/app/MediaRouteButton.java
index 181c90758e8e..70a5e15c6c27 100644
--- a/core/java/android/app/MediaRouteButton.java
+++ b/core/java/android/app/MediaRouteButton.java
@@ -19,6 +19,7 @@ package android.app;
import com.android.internal.R;
import com.android.internal.app.MediaRouteDialogPresenter;
+import android.annotation.NonNull;
import android.content.Context;
import android.content.ContextWrapper;
import android.content.res.TypedArray;
@@ -279,7 +280,7 @@ public class MediaRouteButton extends View {
}
@Override
- protected boolean verifyDrawable(Drawable who) {
+ protected boolean verifyDrawable(@NonNull Drawable who) {
return super.verifyDrawable(who) || who == mRemoteIndicator;
}