Android Studio如何安装Flutter(windows系统)？
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android Studio安装Flutter
Android Studio安装Flutter
本文适用于已经有Android Studio开发基础的同学，默认已经装好Android Studio、Android SDK，jdk，git等环境。
在AS中安装Flutter和Dart插件
下载Flutter SDK
1、Flutter官方下载链接
2、将下载好的zip包解压到你想要安装的路径
配置环境变量
1、win10如何打开环境变量界面。
首先，win+R打开运行窗口；
然后，输入sysdm.cpl命令，打开系统属性窗口；
最后，点击高级，点击环境变量按钮，打开环境变量界面。
2、配置系统变量
首先，新建系统变量，变量值是flutter的路径，最好复制过来。
然后，在系统变量中找到Path，编辑Path，新建下面两行，一行一行添加，添加好之后点击确定。
%FLUTTER_HOME%\\bin
%FLUTTER_HOME%\\bin\\cache\\dart-sdk
3、配置用户变量
分别新建如下两个用户变量：
PUB_HOSTED_URL
https://pub.flutter-io.cn
FLUTTER_STORAGE_BASE_URL
https://storage.flutter-io.cn
最后点击确定-确定，这样环境变量就配置好了。
运行flutter doctor
打开cmd，运行flutter doctor，不出意外的话，会出现如下报错。
Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!
Running "flutter pub get" in flutter_tools... 10.8s
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.3.6, on Microsoft Windows [版本 10.0.19044.2006], 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.dev/docs/get-started/install/windows#android-setup for detailed instructions).
If the Android SDK has been installed to a custom location, please use
`flutter config --android-sdk` to update to that location.
[X] Chrome - develop for the web (Cannot find Chrome executable at .\\Google\\Chrome\\Application\\chrome.exe)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[X] Visual Studio - develop for Windows
X Visual Studio not installed; this is necessary for Windows development.
Download at https://visualstudio.microsoft.com/downloads/.
Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2021.2)
[√] Connected device (2 available)
[√] HTTP Host Availability
! Doctor found issues in 3 categories.
别着急，我们先来看第一条：
[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.dev/docs/get-started/install/windows#android-setup for detailed instructions).
If the Android SDK has been installed to a custom location, please use
`flutter config --android-sdk` to update to that location.
意思是无法定位Android SDK，此时只需配置ANDROID_HOME就好了。
新建用户变量，注意这里是用户变量，变量值为Android SDK的目录，最好也复制过来。
如果忘记了Android SDK的安装目录，可以在AS里查看。
配置好之后，重启电脑，注意这里必须重启，否则不生效。
然后运行flutter doctor，发现报错发生了改变。
Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.3.6, on Microsoft Windows [版本 10.0.19044.2006], locale zh-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 33.0.0)
X cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
X Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
[X] Chrome - develop for the web (Cannot find Chrome executable at .\\Google\\Chrome\\Application\\chrome.exe)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[X] Visual Studio - develop for Windows
X Visual Studio not installed; this is necessary for Windows development.
Download at https://visualstudio.microsoft.com/downloads/.
Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2021.2)
[√] Connected device (2 available)
[√] HTTP Host Availability
! Doctor found issues in 3 categories.
发现已经能找到SDK了，但是报了新的错，首先看第一条：
X cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
意思是cmdline-tools没有安装，打开AS，来装一下这个插件。
装好后，再运行flutter doctor，
Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.3.6, on Microsoft Windows [版本 10.0.19044.2006], locale zh-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 33.0.0)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[X] Chrome - develop for the web (Cannot find Chrome executable at .\\Google\\Chrome\\Application\\chrome.exe)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[X] Visual Studio - develop for Windows
X Visual Studio not installed; this is necessary for Windows development.
Download at https://visualstudio.microsoft.com/downloads/.
Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2021.2)
[√] Connected device (2 available)
[√] HTTP Host Availability
! Doctor found issues in 3 categories.
发现这条警告：
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
我们根据它的提示，运行 flutter doctor --android-licenses，然后一路选择y直至结束。
再运行flutter doctor，
Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.3.6, on Microsoft Windows [版本 10.0.19044.2006], locale zh-CN)
[√] Android toolchain - develop for Android devices (Android SDK version 33.0.0)
[X] Chrome - develop for the web (Cannot find Chrome executable at .\\Google\\Chrome\\Application\\chrome.exe)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[X] Visual Studio - develop for Windows
X Visual Studio not installed; this is necessary for Windows development.
Download at https://visualstudio.microsoft.com/downloads/.
Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2021.2)
[√] Connected device (2 available)
[√] HTTP Host Availability
! Doctor found issues in 2 categories.
发现前面的报错都解决了，剩下的这两条报错是由于没有装Chrome和Visual Studio的原因，不处理也可以使用。
好了，这样我们就打开AS中准备新建Flutter项目吧。
配置Flutter和Dart的安装路径
在新建Flutter项目前，我们先来配置一下Flutter和Dart的安装路径。
一切准备就绪，接下来就让我们开始新建第一个Flutter项目吧。
第一个Flutter项目
点击File—New—New Flutter Project。
注意flutter项目的命名规范，要求单词之间以下划线连接。
构建完成后运行。
Flutter就安装成功了，就请开始你的Flutter之旅吧！
Android Studio Dart 和 Flutter 插件未安装
【中文标题】Android Studio Dart 和 Flutter 插件未安装【英文标题】：Android Studio Dart And Flutter Plugin is not installed 【发布时间】：2021-01-29 20:14:20 【问题描述】：这是flutter doctor 结果：
[√] Flutter (Channel stable, 1.22.1, on Microsoft Windows [Version 10.0.18362.30], locale en-US)
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
[!] Android Studio
X Flutter plugin not installed; this adds Flutter specific functionality.
X Dart plugin not installed; this adds Dart specific functionality.
[!] Connected device
! No devices available
! Doctor found issues in 2 categories.
我已经安装了flutter 插件。但问题仍然存在。我该如何解决这个问题？
【问题讨论】：
有关颤振问题的相关错误报告：github.com/flutter/flutter/issues/37670 【参考方案1】：只需在您的终端上运行它（Mac 用户）
ln -s ~/Library/Application\ Support/Google/AndroidStudio4.1/plugins ~/Library/Application\ Support/AndroidStudio4.1
【讨论】：
这里是明智的解决方案！ 在互联网上关于这个问题的许多建议中，这是唯一对我有用的东西。 感谢您拯救了我的一天，感谢您为 Android Studio 4.2 ln -s ~/Library/Application\ Support/Google/AndroidStudio4.2/plugins ~/Library/Application\ Support/AndroidStudio4.2跨度> 【参考方案2】：大家好
我建议大家按照 Flutter 文档网站告诉您的步骤进行操作
windows用户-->有些人被flutter医生检测到了flutter和dart插件，没有的人很少
我在尝试安装时遇到了这个问题... 我做了所有事情，比如安装了颤振和飞镖插件，但我的颤振医生还没有检测到插件......
以下步骤对我有用
flutter channel dev
flutter upgrade
flutter config --android-studio-dir="C:\Program Files\Android\Android Studio"
flutter doctor -v
注意：--- flutter config --android-studio-dir="C:\Program Files\Android\Android Studio" 应该是示例 flutter config "C:\Program Files\Android\Android Studio"
以上步骤对我有用，我希望它也能帮助你:)
【讨论】：
【参考方案3】：将频道主更改为开发。 然后升级。
flutter channel dev
flutter channel upgrade
再试一次
flutter doctor
注意：我认为这是 Android Studio 4.1 的问题...
【讨论】：
【参考方案4】：既然你说你在 Android Studio 中安装了 Flutter 插件，并且如果 Android Studio 正确显示了你安装的插件，那么没有理由相信任何第三方工具会报告其他情况。
此外，这不会影响您的 Flutter 开发，您的 IDE 插件将在 IDE 中按预期工作，并且 Flutter 工具的命令独立于所使用的 IDE 工作。
Android Studio 4.1 显然是changed its default plugin install path。
相关github问题：[flutter_tools] IDE plugin validators should be deprecated #61246
Flutter 不直接使用 IDE 插件，因此医生未能检测到它们不会影响任何行为（这很烦人）。
【讨论】：
【参考方案5】：-
打开终端：
run> 颤振通道开发
run>flutter 频道升级
【讨论】：
【参考方案6】：打开终端： Mac 用户： 颤振配置 --android-studio-dir=/Applications/Android\ Studio.app
【讨论】：
这在flutter找不到Android Studio时很有用。【参考方案7】：从 Android Studio 重新安装 Flutter 插件
【讨论】：
【参考方案8】：您使用的是 Android Studio V 4.1 吗？ Android Studio V4.1 有一个问题。 尝试重新安装 Android Studio 但版本 4.0.1 并重试，这可能会解决您的问题。
【讨论】：
【参考方案9】：-
打开 Android 工作室
按照路径 配置 > 插件 > 市场 > 搜索 Flutter & Dart > 安装
重启IDE(Android studio)
打开终端并导出 Flutter 路径
并运行 flutter doctor -v
【讨论】：
【参考方案10】：如果您要升级现有项目：
运行
git clone https://github.com/flutter/flutter.git
在您的终端中。
一定要删除你App根目录下的Flutter文件夹。否则你会弹出超过 50k 的错误
【讨论】：
【参考方案11】：检查你的颤振路径
which flutter
如果你得到/path-to-flutter-sdk/bin//flutter 或类似的，你可能在你的$HOME/.rc_file 中添加了一个额外的/。去掉最后一个'/'，重启终端再试一次
【讨论】：
【参考方案12】：这对我有用
flutter channel dev
flutter doctor
【讨论】：
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