Question

I was wondering how do i attach this(OnGenericMotionListener) listener inside an activity. Do i have to register it to each view? thanks

note: please provide code.

Answer 1

To add any interface to a class in java you just need to add the word implements and then the class name to the top of the activity declaration. So to add the OnGenericMotionListener you would use the code below.

    public class MyActivity extends Activity implements OnGenericMotionListener {

            @Override
            public void onCreate(Bundle savedInstanceState)
            {
               super.onCreate(savedInstanceState);

               TextView myView = new TextView(this);

               myView.setOnGenericMotionListener(this);
            }

            @Override
            public boolean onGenericMotion(View view, MotionEvent event) {


               return false;
            }

     }

This would set the GenericMotionListener for myView so when the event occurs it will call the onGenericMotion function inside of your activity. If you want to attach it to multiple views just use a switch on the id of the view passed to the onGenericMotion function.