Apps google map zoom problem

[SilentCoder]

I am using google maps in my android application. I want to implement onDoubleTap() zoom in function. I have written some code but still i need some help. i am sharing my code here. I will really appriciate if somebody point out my mistake or if im on right track le me know what to do next. i am struck at this point.

@Override
public boolean onTouchEvent(MotionEvent event){
this.detector.onTouchEvent(event);
return super.onTouchEvent(event);
}
@Override
public boolean onDoubleTap(MotionEvent e) {
return false;
}
@Override
public boolean onDoubleTapEvent(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}

BR,