@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
ArrayList<Boolean> states = mUserIdsAdapter.getCheckStates();
// no proper parceling method available :(
outState.putSerializable(ARG_CHECK_STATES, states);
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putBoolean(ARG_USE_COMPRESSION, mUseCompression);
}