下載最新的Flutter SDK

1薇芝、官網下載地址：https://flutter.dev/docs/development/tools/sdk/releases?tab=macos#macos
2沮趣、GitHub下載地址：https://github.com/flutter/flutter/releases
??：在macOS上下載最新的flutter sdk以后，會自動解壓到當前下載文件夾舔株，你要做的就是將解壓后的flutter文件放置到你想進行flutter開發(fā)的文件夾下，并通過pwd命令獲取當前文件夾路徑以備用还棱；

添加環(huán)境變量：

1载慈、通過 bogon:fileDir auth$ cd ~進入到用戶文件夾下；
2珍手、使用bogon:~ auth$ vi .bash_profile命令打開bash命令文件办铡，配置flutter環(huán)境變量；
注意：此處若有.bash_profile文件可以使用上述命令直接進行編輯琳要，若沒有料扰，則使用touch .bash_profile命令創(chuàng)建該文件，再使用上述命令進入編輯頁面
3焙蹭、在vi界面點擊i，再復制粘貼如下代碼：

export PUB_HOSTED_URL=https://pub.flutter-io.cn #國內用戶需要設置
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn #國內用戶需要設置
export PATH=剛才下載后解壓的flutter文件路徑/flutter/bin:$PATH

修改以后的文件如下圖所示：

image.png

bogon:~ auth$ flutter -h
Manage your Flutter app development.

Common commands:

  flutter create <output directory>
    Create a new Flutter project in the specified directory.

  flutter run [options]
    Run your Flutter application on an attached device or in an emulator.

Usage: flutter <command> [arguments]

Global options:
-h, --help                  Print this usage information.
-v, --verbose               Noisy logging, including all shell commands executed.
                            If used with --help, shows hidden options.

-d, --device-id             Target device id or name (prefixes allowed).
    --version               Reports the version of this tool.
    --suppress-analytics    Suppress analytics reporting when this command runs.
    --bug-report            Captures a bug report file to submit to the Flutter team.
                            Contains local paths, device identifiers, and log snippets.

    --packages              Path to your ".packages" file.
                            (required, since the current directory does not contain a ".packages" file)

Available commands:
  analyze                  Analyze the project's Dart code.
  attach                   Attach to a running application.
  bash-completion          Output command line shell completion setup scripts.
  build                    Flutter build commands.
  channel                  List or switch flutter channels.
  clean                    Delete the build/ and .dart_tool/ directories.
  config                   Configure Flutter settings.
  create                   Create a new Flutter project.
  devices                  List all connected devices.
  doctor                   Show information about the installed tooling.
  drive                    Runs Flutter Driver tests for the current project.
  emulators                List, launch and create emulators.
  format                   Format one or more dart files.
  help                     Display help information for flutter.
  install                  Install a Flutter app on an attached device.
  logs                     Show log output for running Flutter apps.
  make-host-app-editable   Moves host apps from generated directories to non-generated directories so that they
                           can be edited by developers.
  packages                 Commands for managing Flutter packages.
  precache                 Populates the Flutter tool's cache of binary artifacts.
  run                      Run your Flutter app on an attached device.
  screenshot               Take a screenshot from a connected device.
  stop                     Stop your Flutter app on an attached device.
  test                     Run Flutter unit tests for the current project.
  trace                    Start and stop tracing for a running Flutter app.
  upgrade                  Upgrade your copy of Flutter.
  version                  List or switch flutter versions.

Run "flutter help <command>" for more information about a command.
Run "flutter help -v" for verbose help output, including less commonly used options.

查看本機的flutter開發(fā)環(huán)境支持凡橱，按需進行開發(fā)環(huán)境搭建

bogon:~ auth$ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[?] Flutter (Channel stable, v1.5.4-hotfix.2, on Mac OS X 10.14.5 18F132, locale zh-Hans-CN)
 
[!] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    ! Some Android licenses not accepted.  To resolve this, run: flutter doctor --android-licenses
[!] iOS toolchain - develop for iOS devices (Xcode 10.1)
    ? 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
    ? CocoaPods not installed.
        CocoaPods is used to retrieve the iOS platform side's plugin code that responds to your plugin usage on
        the Dart side.
        Without resolving iOS dependencies with CocoaPods, plugins will not work on iOS.
        For more info, see https://flutter.dev/platform-plugins
      To install:
        brew install cocoapods
        pod setup
[!] Android Studio
    ? Flutter plugin not installed; this adds Flutter specific functionality.
    ? Dart plugin not installed; this adds Dart specific functionality.
[!] IntelliJ IDEA Ultimate Edition (version 2018.2.4)
    ? Flutter plugin not installed; this adds Flutter specific functionality.
    ? Dart plugin not installed; this adds Dart specific functionality.
[!] VS Code (version 1.34.0)
    ? Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[!] Connected device
    ! No devices available

! Doctor found issues in 6 categories.