1 files changed, 10 insertions, 0 deletions
diff --git a/core/java/android/widget/ActivityChooserModel.java b/core/java/android/widget/ActivityChooserModel.java
index 91d7447..1578154 100644
--- a/core/java/android/widget/ActivityChooserModel.java
+++ b/core/java/android/widget/ActivityChooserModel.java
@@ -764,6 +764,16 @@ public class ActivityChooserModel extends DataSetObservable {
     }
 
     /**
+     * Gets whether the given observer is already registered.
+     *
+     * @param observer The observer.
+     * @return True if already registered.
+     */
+    public boolean isRegisteredObserver(DataSetObserver observer) {
+        return mObservers.contains(observer);
+    }
+
+    /**
      * Represents a record in the history.
      */
     public final static class HistoricalRecord {