How can I clear the Android app cache?
- by Srao
I am writing a app which can programatically clear application cache of all the third party apps installed on the device. Following is the code snippet for Android 2.2
public static void trimCache(Context myAppctx) {
Context context = myAppctx.createPackageContext("com.thirdparty.game",
Context.CONTEXT_INCLUDE_CO|Context.CONTEXT_IGNORE_SECURITY);
File cachDir = context.getCacheDir();
Log.v("Trim", "dir " + cachDir.getPath());
if (cachDir!= null && cachDir.isDirectory()) {
Log.v("Trim", "can read " + cachDir.canRead());
String[] fileNames = cachDir.list();
//Iterate for the fileName and delete
}
}
My manifest has following permissions:
android.permission.CLEAR_APP_CACHE
android.permission.DELETE_CACHE_FILES
Now the problem is that the name of the cache directory is printed but the list of files cachDir.list() always returns null. I am not able to delete the cache directory since the file list is always null.
Is there any other way to clear the application cache?
