Flutter环境变量配置

1.下载Flutter SDK

• 一.、使用git克隆Flutter，命令：gitclone -b beta https://github.com/flutter/flutter.git；
• 二、从官网下载flutter，https://flutter.io/setup-macos/；

2.配置环境变量

在当前用户目录下创建.bash_profile文件，如果该文件已经存在，则直接打开.

打开配置文件

open -e .bash_profile

配置

export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn
export PATH=/Users/hujintao/flutter/bin:$PATH

export ANDROID_HOME=$HOME/Library/Android/sdk
export PATH=$PATH:$ANDROID_HOME/tools
export PATH=$PATH:$ANDROID_HOME/tools/bin
export PATH=$PATH:$ANDROID_HOME/platform-tools

export PATH=$PATH:$ANDROID_HOME/emulator

export RN=/usr/local/bin
export PATH=$RN:$PATH

GRADLE_HOME=/Users/Apple/Desktop/soft/gradle/gradle-4.6
export GRADLE_HOME
export PATH=$PATH:$GRADLE_HOME/bin

export NVM_DIR=~/.nvm
source $(brew --prefix nvm)/nvm.sh

其他问题解决

终端执行命令flutter doctor 检测安装依赖

? 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 (version 3.4)
    ? Flutter plugin not installed; this adds Flutter specific functionality.
    ? Dart plugin not installed; this adds Dart specific functionality.
[!] IntelliJ IDEA Ultimate Edition (version 2018.1.4)
    ? Flutter plugin not installed; this adds Flutter specific functionality.
    ? Dart plugin not installed; this adds Dart specific functionality.
[!] VS Code (version 1.35.1)
    ? Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

android studio 配置

解决方案：打开android studio, 打开plugin；
输入flutter搜索，点击中间的 Search in repositories；
需要安装两个插件:

• Flutter插件： 支持Flutter开发工作流 (运行、调试、热重载等).
• Dart插件： 提供代码分析 (输入代码时进行验证、代码补全等).
  要安装这些:
• 点击install，安装完毕之后重启android studio；

配置模拟器

成功的标志

3.创建新项目

Run the app

//终端下建个文件夹，用命令创建一个flutter项目
1. flutter create myapp
//进入项目
2. cd myapp
//run起来
3. flutter run

效果图：

Android

iOS

运行在所有可用设备

flutter run -d all

原文地址：https://www.cnblogs.com/StevenHuSir/p/Flutter-huan-jing-bian-liang-pei-zhi.html