implement scrollView events in Android

[RE-EDIT]

I am trying to implement these events in the scrollView:

• OnSingleTap
• OnDoubleTap
• PaningStart
• OnPanning
• PanningEnd
• PinchingStart
• OnPinching
• PinchingEnd
• RotatingStart
• OnRotating
• RotatingEnd
• OnLongPress

The application is a collection of UI parts that function as one UI part. I have categorized them under a relative layout which I've placed in the scrollView.

I am completely new at this and I would appreciate any help offered. Thanks.

[RE-EDIT]

code sample:

public class Mobclassname extends ScrollView {
    private Object[] children;
    private ArrayList<Object> uiParts = null;
    private Context context;


    public MobGadgetFile(Context context, NSDictionary dict) {
        super(context);
        this.context = context;
        setProperties(dict);

        uiParts = ObjectMgr.createUIParts(context, children);
        RelativeLayout rl = new RelativeLayout(context);

        MobUtils.addUIparts(uiParts, rl);


        HorizontalScrollView hscroll = new HorizontalScrollVi开发者_JS百科ew(context);
        hscroll.addView(rl);
        this.addView(hscroll);

    }

I am doing everything in code therefore I don't have any xml layout file. This is my specification.

Thanks.