行动后生成Flutter路线？ [英] Generating Flutter route after action?

问题描述

成功登录后，我试图自动返回到菜单屏幕，但无法生成Widget构建和/或上下文。我正在使用无状态小组件进行此操作。这是我的代码。我想在最后一个打印语句之后调用路由...

I'm trying to automatically route back to my menu screen after a successful login and I'm having trouble generating a Widget build and/or context. I'm doing this in a Stateless Widget. Here is my code. I would like to call route after the last print statement...

Future<Null> _handleSignIn() async {
    try {
      await _googleSignIn.disconnect();
      GoogleSignInAccount googleUser = await _googleSignIn.signIn();
      GoogleSignInAuthentication googleAuth = await googleUser.authentication;

      print(googleAuth.idToken);

      await FirebaseAuth.instance.signInWithGoogle(idToken: googleAuth.idToken, accessToken: googleAuth.accessToken);


    } catch (error) {
      print(error);
    }
    print("Let's Do This");
    print(_googleSignIn.currentUser.displayName);
    print(FirebaseAuth.instance.currentUser);
  }

推荐答案

根据您的理解问题，基本上您需要设置登录按钮，以将用户重定向到成功登录后希望到达的任何位置。

From what I understand from your question you basically need to setup your sign in button to redirect the users to wherever you want them to be after a successful sign in.

您可以按以下方式设置onPressed呼叫，那么您应该可以从这里：

You can setup your onPressed call as follows, and you should be fine from here:

onPressed: () {_handleSignIn().whenComplete( ()=>Navigator.of(context).pushNamed("/MyHome"));
                      }

注意，您不能在自己的外部使用导航器构建方法，因此您始终需要处理小部件中的导航部分。 检查对此答案的评论。

Note that you can not use Navigator outside your build method, hence you always need to handle the navigation parts within your widgets. Check the comment on this answer.

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