Flutter环境配置

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配置Flutter环境变量

运行Flutter命令

win + R 快捷键，输入cmd，回车，输入flutter doctor，回车。

Windows PowerShell
版权全部 (C) Microsoft Corporation。保留全部权利。

PS C:\Users\boy> flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, v1.2.1, on Microsoft Windows [Version 10.0.17134.590], locale zh-CN)
[X] Android toolchain - develop for Android devices
    X 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.

[!] Android Studio (not installed)
[!] Connected device
    ! No devices available

! Doctor found issues in 3 categories.
PS C:\Users\boy> ^C
PS C:\Users\boy>
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报错

[X] 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.
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解决问题 配置ANDROID_HOME环境变量而且添加到path

运行 flutter doctor

Windows PowerShell
版权全部 (C) Microsoft Corporation。保留全部权利。

PS C:\Users\boy> flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, v1.2.1, on Microsoft Windows [Version 10.0.17134.590], locale zh-CN)
[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[!] Android Studio (not installed)
[!] Connected device
    ! No devices available
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报错

[!] Android Studio (not installed)
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解决方案：下载最新的Android Studio，自行安装便可。 https://developer.android.google.cn/studio

运行 flutter doctor

Windows PowerShell
版权全部 (C) Microsoft Corporation。保留全部权利。

PS C:\Users\boy> flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, v1.2.1, on Microsoft Windows [Version 10.0.17134.590], locale zh-CN)
[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[!] Android Studio (version 3.3)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[!] IntelliJ IDEA Ultimate Edition (version 2018.2)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[√] Connected device (1 available)
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报错

[!] Android Studio (version 3.3)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
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解决方案 须要安装两个插件:

• Flutter插件： 支持Flutter开发工做流 (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:

启动Android Studio.

1. 打开插件首选项 (Preferences>Plugins on macOS, File>Settings>Plugins on Windows & Linux).
2. 选择 Browse repositories…, 选择 Flutter 插件并点击 install.
3. 重启Android Studio后插件生效.

具体安装以下：

运行 flutter doctor

Windows PowerShell
版权全部 (C) Microsoft Corporation。保留全部权利。

PS C:\Users\boy> flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, v1.2.1, on Microsoft Windows [Version 10.0.17134.590], locale zh-CN)
[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[√] Android Studio (version 3.3)
[!] IntelliJ IDEA Ultimate Edition (version 2018.2)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[√] Connected device (1 available)

! Doctor found issues in 1 category.
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[!] IntelliJ IDEA Ultimate Edition (version 2018.2)这个是IntelliJ IDEA编译器，咱们只要Android Studio可用就好，你们忽视就好。

建立Flutter项目

运行Flutter工程