覆盖片段内的活动工具栏（并在片段被销毁时恢复）

Question

I'm trying to hide the activity toolbar inside a fragment when it is attached to the screen. And restore the toolbar when the fragment is detached.

How can I achieve this in a smooth way?

Answer 1

In your fragment you can do it by

@Override
public void onResume() {
    super.onResume();
    ((AppCompatActivity)getActivity()).getSupportActionBar().hide();
    //Replace AppCompateActivity with the activity class you used.
}

@Override
public void onDetach(){
    super.onDetach();
    ((AppCompatActivity)getActivity()).getSupportActionBar().show();
    //Replace AppCompateActivity with the activity class you used.
}