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1 回答

• 0

  您可以通过为 onPressed 帐户图标传递 async 函数轻松实现此目的 . 你的 async 函数看起来像 .

  例：

  //On Home Page, for account icon pressed
  Future<void> checkCredsAndNavigate(){
    bool loggedIn = _checkIfLoggedIn(); // this might be a function that gets status of user login, you can fetch from prefs, state, etc.
    if(!loggedIn){
      var data = await Navigator.of(context).pushNamed('YOUR_LOGIN_ROUTE_NAME');
      if(data == null){ // Check for data, will be null when user cancels login
        return;
      }
    }
    Navigator.of(context).pushNamed('YOUR_ACCOUNT_ROUTE_NAME');
  }
  
  
  //On Login page,
  // On successful login call
  Navigator.of(context).pop(data); // this data can be anything like user id, or just a boolean indicating successful login,etc.
  
  //To cancel login, call
  Navigator.of(context).pop();
  

  希望这可以帮助！

  回复于 2024-04-26T16:45:29+08:00