1、优化ListView刷新数据

lib/widget/my_refresh_list_public.dart

@@ -181,8 +181,10 @@ class _MyListViewPublicState extends State<MyListViewPublic> {
       stateType = StateType.success; //显示成功布局
     }
     _isLoading = false;
+    if (mounted) {
       setState(() {});
     }
+  }
 
   void _requestError(r,s) {
     stateType = StateType.error; //显示异常布局