我关注了https://www.mysysadmintips.com/windows/clients/761-move-android-studio-avd-folder-to-a-new-location。

Start copying a folder "C:\Users\user\.android\avd" to "D:\Android\.android\avd" (or something else). Close Android Studio and running emulators. Press Win + Break and open Advanced System Settings. Then press Environment Variables. Add a user variable ANDROID_SDK_HOME. (I didn't experiment with ANDROID_AVD_HOME.) In Variable value field write D:\Android. If you also moved SDK to another folder, change ANDROID_HOME (I forgot to change it and some emulators didn't launch, see https://stackoverflow.com/a/57408085/2914140). Wait until the folder will finish copying and start Android Studio. Open Android Virtual Device Manager and see a list of emulators. If you don't see emulators and they existed, then probably you entered wrong path into user variable value in step 3. In this case close AS, change the variable and open AS again. Start any emulator. It will try to restore it's state, but it sometimes fails. A black screen can appear instead of Android wallpaper. In this case you can: a. Restart your emulator. To do this close running emulator, then in AVD Manager click Cold Boot Now.

b.如果这没有帮助，打开模拟器设置，在文件“D:\Android\. Android\ avd\Pixel_API_27.ini”中找到。

更改路径到一个新的AVD文件夹。重新启动模拟器。

删除旧的AVD文件夹从“C:\Users\user\.android\ AVD”

看看这个。 使用android命令创建avd，您可以指定文件放置的位置。

-p --path     Location path of the directory where the new AVD will be created

In Windows 10 I had that problem because My C Drive was getting full and I had needed free Space, AVD folder had 14 gig space so I needed to move that folder to another driver, first answer not work for Me so I tested another way to fix it this problem, I make a picture for you if you have the same problem, you don't need to move all of the files in .android folder to another drive (this way not work) just move avd folders in ....android\avd to another drive and open .ini files and change avd folder path from that file to the new path. Like this image:

我希望这对你有用。

注意:小心在ini文件的路径之前和之后有一个你看不到的单独的字符，如果你删除了那个字符，它就不起作用了

您可以更改新AVD的.ini文件:

target=android-7
path=C:\Users\username\.android\avd\VIRTUAL_DEVICE_NAME.avd

我不知道如何指定。ini文件应该存储在哪里:)

用于Windows 10上的Visual Studio 2017

复制C:\Users\ YOURUSERNAME \。android文件夹到(例如)E:\avd

打开环境变量窗口:

进入设置，点击系统。 2 .在界面左侧单击“关于”，在界面右侧选择“系统信息” 底部。 在新窗口中，单击“Advanced system” 左边的设置。 点击环境变量 结果窗口的底部。

添加一个新变量:

变量名:ANDROID_SDK_HOME 变量值:一个目录的路径(例如E:\avd)

不要在变量值中包含.android。

重新启动Visual Studio。

更改SDK和NDK位置到:

工具->选项-> Xamarin -> Android设置

1 -移动AVD到新文件夹

2 - start菜单>控制面板>系统>高级系统设置(左侧)>环境变量 添加一个新的用户变量: 变量名:ANDROID_AVD_HOME 变量值:您选择的目录的路径

3 -更改文件。ini设置新文件夹。

4 -打开Android Studio

WORKS - Windows 2010

更多说明:https://developer.android.com/studio/command-line/variables