1.优化首页重启的问题

lib/util/net_util.dart

@@ -170,9 +170,12 @@ class NetUtil {
         ///非法用户
         if (result[GlobalConfig.HTTP_RESPONSE_KEY_CODE]?.toString() == '401000') {
           try {
-            Future.delayed(Duration(seconds: 0)).then((onValue) {
+            Future.delayed(Duration(seconds: 0)).then((onValue) async {
-              BuildContext context = navigatorKey.currentState.overlay.context;
+              String token= await SharedPreferencesUtil.getStringValue(GlobalConfig.SHARED_KEY_TOKEN);
-              Provider.of<UserInfoNotifier>(context, listen: false).unLogin();
+              if(token!=null&&token.length>2){
+                BuildContext context = navigatorKey.currentState.overlay.context;
+                Provider.of<UserInfoNotifier>(context, listen: false).unLogin();
+              }
             });
           } catch (e, s) {
             Logger.error(e, s);