1 files changed, 10 insertions, 0 deletions
diff --git a/core/java/android/app/ClientTransactionHandler.java b/core/java/android/app/ClientTransactionHandler.java
index 07dbb6bee9fd..70badfae4a20 100644
--- a/core/java/android/app/ClientTransactionHandler.java
+++ b/core/java/android/app/ClientTransactionHandler.java
@@ -105,6 +105,16 @@ public abstract class ClientTransactionHandler {
             boolean isForward, String reason);
 
     /**
+     * Notify the activity about top resumed state change.
+     * @param token Target activity token.
+     * @param isTopResumedActivity Current state of the activity, {@code true} if it's the
+     *                             topmost resumed activity in the system, {@code false} otherwise.
+     * @param reason Reason for performing this operation.
+     */
+    public abstract void handleTopResumedActivityChanged(IBinder token,
+            boolean isTopResumedActivity, String reason);
+
+    /**
      * Stop the activity.
      * @param token Target activity token.
      * @param show Flag indicating whether activity is still shown.