Android - delete files on SD card on uninstall

android storage external uninstallation
Jack BeNimble picture Jack BeNimble · Jul 4, 2011 · Viewed 12.1k times · Source

My app downloads some multi-media files from a server when it's installed. I do this to save space on the size of the app. However, the drawback of this approach is that when the app is uninstalled, it doesn't delete those files. I've seen reports that this is possible, but I can't seem to make it work. Is there a way to do this on uninstall, or should I just forget about it?

Note that I have the app installed on the SD card by default as well, but I'm not sure if all phones will automatically support this.

Answer

constantine picture constantine · Nov 10, 2012

from http://developer.android.com/guide/topics/data/data-storage.html#filesExternal "If you're using API Level 7 or lower, use getExternalStorageDirectory(), to open a File representing the root of the external storage. You should then write your data in the following directory:

/Android/data/<package_name>/files/

The <package_name> is your Java-style package name, such as "com.example.android.app". If the user's device is running API Level 8 or greater and they uninstall your application, this directory and all its contents will be deleted."

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