Flutter 开发环境搭建

下载

官网地址（可能下载费劲）：获取最新的 Flutter SDK

github上的地址（比上面强点）：flutter-github

安装

下载 flutter 安装包，通过上面两个渠道下载 flutter 的安装包

在桌面创建一个 flutter 的安装目录 workspace/flutter

mkdir ~/Desktop/workspace/flutter && cd ~/Desktop/workspace/flutter

将上面下载的 flutter 安装包解压到您上面创建的文件夹内
```
unzip ~/Downloads/flutter_macos_v1.7.8+hotfix.4-stable.zip
```

设置环境变量，根据您自己的情况将下面内容添加到 $HOME/.bash_profile 或者 $HOME/.zshrc 文件，

# 国内用户需要设置
export PUB_HOSTED_URL=https://pub.flutter-io.cn
# 国内用户需要设置
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn
# flutter 环境变量
export PATH=~/Desktop/workspace/flutter/bin:$PATH

注意： 上面设置 flutter 环境变量时，要设置为您自己的 flutter 解压的位置

检查是否需要安装其它依赖项来完成安装

~ flutter doctor

  ╔════════════════════════════════════════════════════════════════════════════╗
  ║                 Welcome to Flutter! - https://flutter.dev                  ║
  ║                                                                            ║
  ║ The Flutter tool anonymously reports feature usage statistics and crash    ║
  ║ reports to Google in order to help Google contribute improvements to       ║
  ║ Flutter over time.                                                         ║
  ║                                                                            ║
  ║ Read about data we send with crash reports:                                ║
  ║ https://github.com/flutter/flutter/wiki/Flutter-CLI-crash-reporting        ║
  ║                                                                            ║
  ║ See Google's privacy policy:                                               ║
  ║ https://www.google.com/intl/en/policies/privacy/                           ║
  ║                                                                            ║
  ║ Use "flutter config --no-analytics" to disable analytics and crash         ║
  ║ reporting.                                                                 ║
  ╚════════════════════════════════════════════════════════════════════════════╝


Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.7.8+hotfix.4, on Mac OS X 10.14.6 18G84, locale zh-Hans-CN)
[✗] Android toolchain - develop for Android devices
    ✗ Unable to locate Android SDK.
      Install Android Studio from: https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK components.
      (or visit https://flutter.dev/setup/#android-setup for detailed instructions).
      If the Android SDK has been installed to a custom location, set ANDROID_HOME to that location.
      You may also want to add it to your PATH environment variable.

[✓] Xcode - develop for iOS and macOS (Xcode 10.3)
[✗] iOS tools - develop for iOS devices
    ✗ libimobiledevice and ideviceinstaller are not installed. To install with Brew, run:
        brew update
        brew install --HEAD usbmuxd
        brew link usbmuxd
        brew install --HEAD libimobiledevice
        brew install ideviceinstaller
    ✗ ios-deploy not installed. To install:
        brew install ios-deploy
[!] Android Studio (not installed)
[!] VS Code (version 1.36.1)
    ✗ Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[!] Connected device
    ! No devices available

! Doctor found issues in 5 categories.

按照上面的提示，将必要软件或者服务装好，就完成了 flutter 开发环境的安装🎉。