Warning: this may be a pre-Lollipop answer.

Fragment doesn't get re-inflated on configuration change, but you can achieve the effect as follows by creating it with a FrameLayout and (re)populating that manually:

public class MyFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
FrameLayout frameLayout = new FrameLayout(getActivity());
populateViewForOrientation(inflater, frameLayout);
return frameLayout;
} @Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
LayoutInflater inflater = LayoutInflater.from(getActivity());
populateViewForOrientation(inflater, (ViewGroup) getView());
} private void populateViewForOrientation(LayoutInflater inflater, ViewGroup viewGroup) {
viewGroup.removeAllViewsInLayout();
View subview = inflater.inflate(R.layout.my_fragment, viewGroup); // Find your buttons in subview, set up onclicks, set up callbacks to your parent fragment or activity here.
}
}

I'm not particularly happy with the getActivity() and related calls here, but I don't think there's another way to get hold of those things.

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