How to handle event soft keyboard hidden?

Question

My note application has 2 fragments on a screen: A list of notes fragment and a note detail fragment to display the selected note in the second fragment, it has an input text field (android:inputType="textMultiLine"). As I want to handle event keyboard hidden so I can save the change user has made when they close the keyboard. Can anyone give me a clue to do this task?

Answer 1

Here's how i handle it on my Note Detail fragment:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    this.view = inflater.inflate(R.layout.fragment_note_detail_of_style_searching, container , false);

    listviewFilter = (ListView) view.findViewById(R.id.listview_filter);
    noteDetailView = view.findViewById(R.id.note_detail_of_style_view);
    photoDetailView = view.findViewById(R.id.gv_note_detail_photo);

    view.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

        @Override
        public void onGlobalLayout() {                
            int heightDiff = view.getRootView().getHeight() - view.getHeight();
            if (heightDiff > 200) { 
                isWatchingKeyboard = true;
                photoDetailView.setVisibility(View.GONE);
                return; //must exit now
            }

            if(isWatchingKeyboard){
                isWatchingKeyboard = false;
                viewForFocus.requestFocus();
                photoDetailView.setVisibility(View.VISIBLE);
            }
        }
    });

    return this.view;
}