Android: 如何創建AVD以及選擇合適target類型

Android 1.5中引入了AVD(Android Virtual Device)。在模擬器上運行你的應用程序之前必須首先創建一個你的AVD(所以，可以理解爲AVD就是一個配置好了的模擬器)。

創建AVD你需要運行：android create avd命令，先看一下它的用法：

Usage:
  android [global options] action [action options]
 
Global options:
  -h --help This help.
  -s --silent Silent mode: only errors are printed out.
  -v --verbose Verbose mode: errors, warnings and informational messages are pr
inted.
 
Action "create avd":
  Creates a new Android Virtual Device.
Options:
  -t --target Target id of the new AVD [required]
  -c --sdcard Path to a shared SD card image, or size of a new sdcard for the
new AVD
  -p --path Location path of the directory where the new AVD will be created
 
  -n --name Name of the new AVD [required]
  -f --force Force creation (override an existing AVD)
  -s --skin Skin of the new AVD


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從幫助中可以看到，創建一個新的avd，你必須要指定的有兩處，一個是-n，即name，這個很簡單，給你的avd起一個通俗的名字就ok了。另外一個是-t，即target。SDK1.5中目前有兩種類型的target：platform,Add-on。Platform是android的平臺target,add-on是android的插件target。

我們可以先通過命令查看一下當前的android都提供了哪些target：

$ android list targets
Available Android targets:
id: 1
     Name: Android 1.1
     Type: Platform
     API level: 2
     Skins: HVGA (default), HVGA-L, HVGA-P, QVGA-L, QVGA-P
id: 2
     Name: Android 1.5
     Type: Platform
     API level: 3
     Skins: HVGA (default), HVGA-L, HVGA-P, QVGA-L, QVGA-P
id: 3
     Name: Google APIs
     Type: Add-On
     Vendor: Google Inc.
     Description: Android + Google APIs
     Based on Android 1.5 (API level 3)
     Libraries:
      * com.google.android.maps (maps.jar)
          API for Google Maps
     Skins: HVGA (default), HVGA-L, QVGA-P, HVGA-P, QVGA-L


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這些都是android 1.5自帶的，如果你使用了一些自己的add-on,那麼這裏也會顯示。關於如何使用自己的add-on，以後有時間會做介紹。

說了這麼多，大家應該對avd 的target有了一定的瞭解。回到原題，在創建一個avd的時候，如何選擇target呢，這裏有幾點需要注意：

 

最後以一個例子來結束，例如我想創建一個基本的android 1.5模擬器avd:

$ android create avd -t 2 –n my1p5AVD

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如果想查看你目前所有的avd,執行android list avd,就會看到所有的avd詳細信息。