在EditText外点击后如何隐藏android上的软键盘？在片段中

public class YourFragment extends Fragment {

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

        // 点击EditText外部时隐藏软键盘
        rootView.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                hideKeyboard();
                return false;
            }
        });

        return rootView;
    }

    private void hideKeyboard() {
        View rootView = getView();
        if (rootView != null) {
            InputMethodManager imm = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.hideSoftInputFromWindow(rootView.getWindowToken(), 0);
        }
    }
}