windows+vscode+夜神模拟器 flutter环境配置

最新推荐文章于 2025-06-13 11:17:12 发布

clemente620

最新推荐文章于 2025-06-13 11:17:12 发布

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分类专栏： Flutter & Dart

本文链接：https://blog.youkuaiyun.com/weixin_38130913/article/details/99702007

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安装jdk
下载右边的安装包以获取最新版本 stable 的 Flutter SDK
将压缩包解压，然后把其中的 flutter 目录整个放在你预想的 Flutter SDK 安装目录中（比如 C:\src\flutter；请勿将该目录放在一些需要额外操作权限的目录，比如 C:\Program Files\）。
找到 flutter 目录中的 flutter_console.bat 文件，双击执行该批处理脚本。输入flutter doctor
更新 path 环境变量

把 flutter\bin 目录的完整路径以 ; 作为分隔加到已有的path变量的值后面
你需要关闭和重新启动已经打开的各个控制台窗口，这样下次启动控制台时才能访问到刚才修改的变量
在将 Path 变量更新后，打开一个新的控制台窗口输入flutter doctor查看缺少的相关依赖
- 缺少android sdk
- 没有安装android studio (当然也可以用vscode)
- 没有连接安卓设备
解决方案是安装 Android Studio （Flutter 依赖 Android Studio 的全量安装来为其提供 Android 平台的支持包括Android SDK）

更换国内镜像打开中文官网

清华大学 TUNA 协会
FLUTTER_STORAGE_BASE_URL: https://mirrors.tuna.tsinghua.edu.cn/flutter
PUB_HOSTED_URL: https://mirrors.tuna.tsinghua.edu.cn/dart-pub

新增到windows系统环境变量如图
在这里插入图片描述

Android Studio太笨重如果想用vscode怎么办
首先需要装 dart 和 flutter插件

创建Flutter项目
接下来进行Flutter项目的新建，我们可以通过命令面板或者快捷键Ctrl+Shif+P打开命令面板，找到Flutter：New Project：

回车填入项目名称

第一个demo想摸模板

其中，Android相关的修改和配置在android目录下，结构和Android应用项目结构一样；IOS相关修改和配置在ios目录下，结构和IOS应用项目结构一样。最重要的flutter代码文件是在lib目录下，类文件以.dart结尾，语法结构为Dart语法结构。大致如下：

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: Column(
          // Column is also layout widget. It takes a list of children and
          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
          //
          // Invoke "debug painting" (press "p" in the console, choose the
          // "Toggle Debug Paint" action from the Flutter Inspector in Android
          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
          // to see the wireframe for each widget.
          //
          // Column has various properties to control how it sizes itself and
          // how it positions its children. Here we use mainAxisAlignment to
          // center the children vertically; the main axis here is the vertical
          // axis because Columns are vertical (the cross axis would be
          // horizontal).
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.display1,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}