diff --git a/uni_modules/uni-usercapturescreen/utssdk/app-android/index.uts b/uni_modules/uni-usercapturescreen/utssdk/app-android/index.uts
index fd92a79a318574235fcc6189a0e1abf75e539016..99cf531e58733d6ae0c68ace8dc08e7c0d99b530 100644
--- a/uni_modules/uni-usercapturescreen/utssdk/app-android/index.uts
+++ b/uni_modules/uni-usercapturescreen/utssdk/app-android/index.uts
@@ -85,6 +85,14 @@ export const onUserCaptureScreen : OnUserCaptureScreen = function (callback : Us
 	observer?.stopWatching();
 	observer = new ScreenFileObserver(directory_screenshot);
 	observer?.startWatching();
+	
+	
+	UTSAndroid.onAppActivityDestroy(function(){
+		observer?.stopWatching()
+		observer = null
+	})
+	
+	
 }
 
 /**