Flutter安装文档：
- 官方文档：
- 中文文档：
Dart升级
- Dart安装参考前面文章（Dart安装和初体验）：
- 后续学习我们采用最新Flutter版本，因此建议升级Dart最新版本（当前： 3.2.0 ）：
brew upgrade dart
$ brew info dart==> dart-lang/dart/dart: stable 3.2.0, HEADSDKhttps://dart.devConflicts with: dart-beta (because dart-beta ships the same binaries)/usr/local/Cellar/dart/3.2.0 (1,022 files, 560.8MB) * Built from source on 2023-11-19 at 10:04:05From: https://github.com/dart-lang/homebrew-dart/blob/HEAD/Formula/dart.rb==> Options--HEAD Install HEAD version==> CaveatsPlease note the path to the Dart SDK: /usr/local/opt/dart/libexecVS Code安装
VS Code是免费的，支持Flutter的研发、调试和运行，没有理由不使用它作为Flutter的研发IDE（IntelliJ IDEA非常强大，可惜是收费）。
下载和安装VS Code下载：
- 首先通过官网下载VS Code：
- 点击下载之后，发现下载速度很慢：右键复制下载链接，然后把域名换成 “ vscode.cdn.azure.cn ”，重新通过浏览器打开进行下载，速度杠杠的
VS Code安装成功之后，就进行Flutter安装和配置。
Flutter SDK安装
我们可以从GitHub原始仓库和Gitee镜像仓库下载，由于中国访问GitHub网速太慢，建议从 Gitee镜像仓库 下载：
# 源代码目录 [/Users/obullxl/FlutterSpace]$ cd /Users/obullxl/FlutterSpace# Gitee下载 [推荐方式]$ git clone -b stable https://gitee.com/mirrors/Flutter.git flutter# GitHub下载 [网速可能较慢]$ git clone -b stable https://github.com/flutter/flutter.git flutter Flutter SDK有多个版本，如 beta 、 master 、 stable 等，其中beta/master为开发分支， stable 为稳定分支，建议使用 稳定分支 ：
- 查看所有分支：
flutter channel - 切换本地分支：
flutter channel xxx - 查看当前版本：
flutter --version - 升级最新版本：
flutter upgrade - 检测Flutter配置：
flutter doctor
# 切换到Flutter源代码目录$ cd /Users/obullxl/FlutterSpace/flutter# 查看Flutter所有分支 [建议stable分支]$ flutter channelFlutter channels: master main beta* stable# 切换到stable分支$ flutter channel stable# 查看当前版本，由于我的Flutter是之前安装的版本[3.7.1]$ flutter --versionFlutter 3.7.1 • channel stable • https://gitee.com/mirrors/Flutter.gitFramework • revision 7048ed95a5 (10 months ago) • 2023-02-01 09:07:31 -0800Engine • revision 800594f1f4Tools • Dart 2.19.1 • DevTools 2.20.1# 升级Flutter版本$ flutter upgrade# 再次查看Flutter版本，已经是最终版本[3.16.0]$ flutter --versionFlutter 3.16.0 • channel stable • https://gitee.com/mirrors/Flutter.gitFramework • revision db7ef5bf9f (3 days ago) • 2023-11-15 11:25:44 -0800Engine • revision 74d16627b9Tools • Dart 3.2.0 • DevTools 2.28.2# 检测Flutter配置情况$ flutter doctorDoctor summary (to see all details, run flutter doctor -v):[!] Flutter (Channel stable, 3.16.0, on macOS 12.6.7 21G651 darwin-x64, locale zh-Hans-CN) ! Warning: `dart` on your path resolves to /usr/local/Cellar/dart/3.1.2/libexec/bin/dart, which is not inside your current Flutter SDK checkout at /Users/obullxl/FlutterSpace/flutter. Consider adding /Users/obullxl/FlutterSpace/flutter/bin to the front of your path.[!] Android toolchain - develop for Android devices (Android SDK version 33.0.1) ✗ cmdline-tools component is missing Run `path/to/sdkmanager --install "cmdline-tools;latest"` See https://developer.android.com/studio/command-line for more details. ✗ Android license status unknown. Run `flutter doctor --android-licenses` to accept the SDK licenses. See https://flutter.dev/docs/get-started/install/macos#android-setup for more details.[✓] Xcode - develop for iOS and macOS (Xcode 14.2)[✓] Chrome - develop for the web[✓] Android Studio (version 2021.3)[✓] IntelliJ IDEA Ultimate Edition (version 2021.1.3)[✓] VS Code (version 1.84.0)[✓] Connected device (2 available)[✓] Network resources! Doctor found issues in 2 categories.Flutter 仓库配置
和Java编程需要配置Maven国内仓库一样，Flutter也需要配置国内仓库，否则访问国外仓库要么访问不了，要么网速太慢。
在环境变量中，增加如下配置：
# 建软连接 [便于后面统一管理]$ cd /opt$ sudo ln -s /Users/obullxl/FlutterSpace/flutter ./flutter# 系统变量$ sudo vi /etc/profile# 增加内容export PUB_HOSTED_URL=https://pub.flutter-io.cnexport FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cnexport FLUTTER_GIT_URL=https://gitee.com/mirrors/Flutter.gitexport PATH=$PATH:/opt/flutter/bin# 生效环境变量$ source /etc/profile最后
至此，Flutter安装和配置已经完成了，接下来我们就通过VS Code编写Flutter App了！
我的本博客原地址：