Onbackpressed in fragment not working while implementing interface

Question

I am trying to override onbackpressed method inside fragment . But it gives me syntax error that it should override a super method in interface. Why so? I have other methods like ondestroy also in my fragment class but no error. Why for this backpressed alone. I tried onkeydown also. Same error. Pasting below my code.

  public TestClass extends Fragment implements    Testinterface
{  @Override //error must override or implement    supertype method
 public void onBackPressed ()
{
 if (check)
Do somethin
 else
  getActivity().finish ()
  //super.onBackPressed () // error here if I use this
  }

Answer 1

You have to implement on key down in fragment, check for key code. The onBackPress() method can be used in an Activity -- which is the logical parent of your fragment.

Try this:

frag.getView().setFocusableInTouchMode(true);
frag.getView().setOnKeyListener( new OnKeyListener(){
    @Override
    public boolean onKey( View v, int keyCode, KeyEvent event ){
        if( keyCode == KeyEvent.KEYCODE_BACK ){
            return true;
        }
        return false;
    }
} );