主要参考flutter中文官方,结合自己操作过程的问题整理的这篇文章

使用镜像

由于在国内访问Flutter有时可能会受到限制，Flutter官方为中国开发者搭建了临时镜像，大家可以将如下环境变量加入到用户环境变量中：

export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn

注意： 此镜像为临时镜像，并不能保证一直可用，读者可以参考详情请参考 Using Flutter in China 以获得有关镜像服务器的最新动态。

获取Flutter SDK

1.去Flutter官网下载官网地址 或者 去github上下载git地址
2.解压安装包到你想安装的目录，如：

cd ~/Users/#自己的账户名#
unzip ~/Downloads/flutter_macos_v0.5.1-beta.zip  #下载的zip文件#

3.添加flutter相关工具到path中：(在步骤2当前路径下)

export PATH=`pwd`/flutter/bin:$PATH

运行 flutter doctor

[✓] Flutter (Channel stable, v1.0.0, on Mac OS X 10.13.6 17G4015, locale
    zh-Hans-CN)
[!] Android toolchain - develop for Android devices
    ✗ No valid Android SDK platforms found in
      /Users/chengguangfa/Library/Android/sdk/platforms. Directory was empty.
[!] 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
[✓] Android Studio (version 3.3)
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
[!] Connected device
    ! No devices available

[✓]表示没有问题, ✗表示有错误需要按照提示去安装

1.先修复iOS toolchain 问题

[!] iOS toolchain - develop for iOS devices (Xcode 10.1)
✗ libimobiledevice and ideviceinstaller are not installed. To install with
Brew, run:
brew update #step1
brew install --HEAD usbmuxd #step2
brew link usbmuxd #step3
brew install --HEAD libimobiledevice #step4
brew install ideviceinstaller #step5

前三步的时候没啥问题, 到第四步的时候死活装不上提示:
Cloning into '/Users/chengguangfa/Library/Caches/Homebrew/libimobiledevice--git'... fatal: unable to access 'https://git.libimobiledevice.org/libimobiledevice.git/': LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to git.libimobiledevice.org:443
的错误SSL_ERROR_SYSCALL,
查了下资料才知道是被墙了. 挂着梯子,再次brew install --HEAD libimobiledevice, 成功!!!

bogon:flutter_Place chengguangfa$  brew install --HEAD libimobiledevice
==> Cloning https://git.libimobiledevice.org/libimobiledevice.git
Cloning into '/Users/chengguangfa/Library/Caches/Homebrew/libimobiledevice--git'...
==> Checking out branch master
Already on 'master'
Your branch is up to date with 'origin/master'.
==> ./autogen.sh
==> ./configure --disable-silent-rules --prefix=/usr/local/Cellar/libimobiledevi
==> make install
🍺  /usr/local/Cellar/libimobiledevice/HEAD-0584aa9_3: 67 files, 1MB, built in 8 minutes 24 seconds
Removing: /Users/chengguangfa/Library/Caches/Homebrew/libimobiledevice--1.2.0_3.high_sierra.bottle.tar.gz... (280.8KB)

修复完iOS toolchain的问题后, 继续flutter doctor

bogon:flutter_Place chengguangfa$ flutter doctor
[✓] Flutter (Channel stable, v1.0.0, on Mac OS X 10.13.6 17G4015, 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.io/setup/#android-setup for detailed
      instructions).
      If 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.
[✓] iOS toolchain - develop for iOS devices (Xcode 10.1)
[!] Android Studio (not installed)
[!] Connected device
    ! No devices available

其他的主要是Andriod Studio 没安装的问题,

安装Android Studio

要为Android开发Flutter应用，您可以使用Mac，Windows或Linux（64位）机器.

Flutter需要安装和配置Android Studio:

1. 下载并安装 Android Studio.

2. 启动Android Studio，然后执行“Android Studio安装向导”。这将安装最新的Android SDK，Android SDK平台工具和Android SDK构建工具，这是Flutter为Android开发时所必需的

3. 打开android studio, 打开plugin

   
   
   image.png

4. 安装Flutter,安装Flutter会提示你安装dart, 点击安装

   
   
   image.png

5. 点击install,顺利的话安装完毕之后重启android studio

开始你的Flutter之旅吧....