diff --git a/uni_modules/uni-usercapturescreen/utssdk/app-android/index.uts b/uni_modules/uni-usercapturescreen/utssdk/app-android/index.uts
index 0774e5de66caa76e3f0196addd3794681d224e99..a555dad9e9a51293fd7b2343f4203d95584e7b18 100644
--- a/uni_modules/uni-usercapturescreen/utssdk/app-android/index.uts
+++ b/uni_modules/uni-usercapturescreen/utssdk/app-android/index.uts
@@ -84,6 +84,14 @@ export const onUserCaptureScreen : OnUserCaptureScreen = function (callback : Us
 	observer?.stopWatching();
 	observer = new ScreenFileObserver(directory_screenshot);
 	observer?.startWatching();
+	
+	
+	UTSAndroid.onAppActivityDestroy(function(){
+		observer?.stopWatching()
+		observer = null
+	})
+	
+	
 }
 
 /**