diff --git a/lib/util/shared_prefe_util.dart b/lib/util/shared_prefe_util.dart
index 729a289..14f7159 100644
--- a/lib/util/shared_prefe_util.dart
+++ b/lib/util/shared_prefe_util.dart
@@ -49,4 +49,9 @@ class SharedPreferencesUtil {
     }
     return defaultVal;
   }
+
+  static Future<bool> clean() async {
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    return  await prefs.clear();
+  }
 }