@Override
protected Boolean doInBackground(Void... params) {
final CountDownLatch countDownLatch = new CountDownLatch(1);
StatFs stat = new StatFs(Environment.getDataDirectory().getAbsolutePath());
try {
if (canCleanInternalCache(CleanerService.this)) {
mFreeStorageAndNotifyMethod.invoke(
getPackageManager(),
(long) stat.getBlockCount() * (long) stat.getBlockSize(),
new IPackageDataObserver.Stub() {
@Override
public void onRemoveCompleted(String packageName, boolean succeeded)
throws RemoteException {
countDownLatch.countDown();
}
});
} else {
countDownLatch.countDown();
}
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
if (isExternalStorageWritable()) {
final File externalDataDirectory =
new File(
Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data");
final String externalCachePath = externalDataDirectory.getAbsolutePath() + "/%s/cache";
final File[] files = externalDataDirectory.listFiles();
for (File file : files) {
if (!deleteDirectory(
new File(String.format(externalCachePath, file.getName())), true)) {
Log.e(TAG, "External storage suddenly becomes unavailable");
return false;
}
}
} else {
Log.d(TAG, "External storage is unavailable");
}
}
countDownLatch.await();
} catch (InterruptedException | IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
return false;
}
return true;
}
