在Flutter中导航到新屏幕

本文介绍了在Flutter中导航到新屏幕的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

您如何在Flutter中导航到新屏幕？

这些问题相似，但问的比我多。

How do you navigate to a new screen in Flutter?

These questions are similar, but are asking more than I am.

Flutter - Navigate to a new screen, and clear all the previous screens
Flutter: How do I navigate to a new screen using DropDownMenuItems
Flutter: Move to a new screen without back
flutter navigation to new screen not working

I am adding an answer below.

解决方案

Navigate to a new screen:

Navigator.of(context).push(MaterialPageRoute(builder: (context) => NewScreen()));

where context is the BuildContext of a widget and NewScreen is the name of the second widget layout.

Code

main.dart

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: HomeScreen(),
    );
  }
}

class HomeScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Home Screen')),
      body: Center(
        child: RaisedButton(
          child: Text(
            'Navigate to a new screen >>',
            style: TextStyle(fontSize: 24.0),
          ),
          onPressed: () {
            _navigateToNextScreen(context);
          },
        ),
      ),
    );
  }

  void _navigateToNextScreen(BuildContext context) {
    Navigator.of(context).push(MaterialPageRoute(builder: (context) => NewScreen()));
  }
}

class NewScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('New Screen')),
      body: Center(
        child: Text(
          'This is a new screen',
          style: TextStyle(fontSize: 24.0),
        ),
      ),
    );
  }
}

在Flutter中导航到新屏幕

问题描述

Navigate to a new screen:

Code

See also