/** Detach from view. */
@Override
public void onDestroyView() {
mContentShown = false;
mIsContentEmpty = false;
mProgressContainer = mContentContainer = mContentView = mEmptyView = null;
super.onDestroyView();
}
/** Attach to view once the view hierarchy has been created. */
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
ensureContent();
}