Flutter環境變量配置

1.下載Flutter SDK

• 一.、使用git克隆Flutter，命令：gitclone -b beta https://github.com/flutter/flutter.git；

• 二、從官網下載flutter，https://flutter.io/setup-macos/；

2.配置環境變量

在當前用戶目錄下創建.bash_profile文件，如果該文件已經存在，則直接打開.

打開配置文件

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

其他問題解決

終端執行命令flutter doctor 檢測安裝依賴

✗ 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

 解決方案：打開android studio, 打開plugin；
輸入flutter搜索，點擊中間的 Search in repositories；
需要安裝兩個插件:

• Flutter插件： 支持Flutter開發工作流 (運行、調試、熱重載等).
• Dart插件： 提供代碼分析 (輸入代碼時進行驗證、代碼補全等).
  要安裝這些:
• 點擊install，安裝完畢之后重啟android studio；

配置模擬器

成功的標志

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3.創建新項目

Run the app

//終端下建個文件夾，用命令創建一個flutter項目
1. flutter create myapp
//進入項目
2. cd myapp
//run起來
3. flutter run

效果圖：

Android

iOS

運行在所有可用設備

flutter run -d all