android 在已删除的包中没有收到 Intent ACTION_PACKA

文档 说:

被移除的包没有收到这个 Intent.

Android 2.2 添加了 getExternalFilesDir()，它将指向外部存储上的一个位置，Android 将在您的应用程序卸载时自动清理该位置.但是，这仅适用于 Android 2.2，并且有迹象表明它目前运行得不是特别好.但是，在 2011 年要牢记这一点.

除此之外，您真正能做的就是在某处为用户提供一个菜单选项来进行清理，并希望用户在卸载您之前使用它.

When my android app is removed, I would like to also remove files the app has created on the SD card, as these can consume many megabytes and are only of use to my app.

It seems that receiving the PACKAGE REMOVED intent would be the place to do this. However, my broadcast receiver is never called--it seems to have been deleted before the PACKAGE REMOVED intent is sent

The code is:

public class UninstallReceiver extends BroadcastReceiver {
 @Override
 public void onReceive(Context context, Intent intent) {
  String action= intent.getAction();
  Log.i("U", "ACTION " + action);
  etc.
 }
}

and, in the manifest:

 <application android:debuggable="true"
  android:icon="@drawable/icon"
  android:label="@string/app_name">

  <receiver android:name ="com.boom.UninstallReceiver">
   <intent-filter>
        <action android:name="android.intent.action.PACKAGE_REMOVED"/> 
     <data android:scheme="package" />
   </intent-filter>
  </receiver>

The documentation says:

The package that is being removed does not receive this Intent.

Android 2.2 added getExternalFilesDir(), which will point to a place on the external storage that Android will automatically clean up when your application is uninstalled. However, that is only for Android 2.2, and there are indications that it does not work particularly well at the moment. However, it is something to keep in mind for 2011.

Beyond that, all you can really do is offer a menu choice somewhere for the user to do the cleanup, and hope users use it before uninstalling you.

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