Fragment onHiddenChanged not called

I had same problem.

I used standart guideline practic work with fragment (Building a Flexible UI). I have two fragment (ListItemsFragment and InfoItemFragment). When used normal screen size, I replace ListItemsFragment at InfoItemFragment and the method onHiddenChanged doesn't call automatic.

FragmentTransaction mFragmentTransaction = getFragmentManager().beginTransaction();
mFragmentTransaction.replace(R.id.container_fragment, new InfoItemFragment(), "tag_fr_infoItem");
mFragmentTransaction.addToBackStack(null);
mFragmentTransaction.commit();

I think we must called in hide method FragmentTransaction. For example:

    ListItemsFragment  mListItemsFragment;
    FragmentTransaction mFragmentTransaction = getFragmentManager().beginTransaction();
    mFragmentTransaction.replace(R.id.container_fragment, new InfoItemFragment(), "tag_fr_infoItem");
    if (mListItemsFragment != null) {
        mFragmentTransaction.hide(mListItemsFragment);
    }
    mFragmentTransaction.addToBackStack(null);
    mFragmentTransaction.commit();

And now the method onHiddenChanged work fine. When user click back button mListItemsFragment again show and method onHiddenChanged called automatic.

In documentation said: this will be called whenever the fragment changes state from that

I think we must manual change value then method will be called.

Still looking for an answer? onHiddenChanged doesn't get called the first time an fragment is shown. Only when it changes state.

From the documentation:

Called when the hidden state (as returned by isHidden()) of the fragment has changed. Fragments start out not hidden; this will be called whenever the fragment changes state from that.

You can use setUserVisibleHint method to solve some similar problem. Hope it can help you.

@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
    super.setUserVisibleHint(isVisibleToUser);
    if (isVisibleToUser) {
        // Do some your work
    } else {
        // Do your Work
    }
}