如何避免再次在颤动中加载相同的屏幕? [英] how can i avoid loading again same screen in flutter?

问题描述

我在PopupMenuItem中有登录和注册项目.当登录屏幕打开时，如果我再次点击登录项，它将再次进入登录屏幕.我想阻止打开登录屏幕(如果已打开).我该如何处理这个问题

I have login and registration items in PopupMenuItem. when the login screen is opened then if I tap again the login item it will again the login screen. I want to prevent from open the login screen if it already opened. how can I will deal with this issue

推荐答案

将其更改为pushReplacement

Navigator.pushReplacement( context, MaterialPageRoute(builder: (context) => Login()));
     

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