Is the onTap support for Datafield?

Hi,

I am trying to write something on my Datafield so if runners tap on the touchable watch face, the datafield can display a different data. However, I am not able to get the onTap() function to response. Is that the onTap() or onHold() still not supporting datafield?

using Toybox.Application;

class LapEpH4RacerApp extends Application.AppBase {

    function initialize() {
        AppBase.initialize();
    }

    //! onStart() is called on application start up
    function onStart(state) {
    }

    //! onStop() is called when your application is exiting
    function onStop(state) {
    }

    //! Return the initial view of your application here
    function getInitialView() as Array<Views or InputDelegates>? {
        var view = new $.LapEpH4RacerView();
        var delegate = new $.SomeOneTouchMe();
        return [ view, delegate ] as Array<Views or InputDelegates>;
    }

}

import Toybox.WatchUi;
using Toybox.Activity as Act;
using Toybox.Graphics as Gfx;
using Toybox.System as Sys;
using Toybox.FitContributor as Fit;
using Toybox.Timer as Timer;
using Toybox.Application as App;

class SomeOneTouchMe extends WatchUi.BehaviorDelegate {

    private var _view as WatchUi.DataField;

    public function initialize() {
        BehaviorDelegate.initialize();

    }

    public function onTap() as Boolean {
        System.print("Touched!!");
        WatchUi.requestUpdate();
        return false;
    }

    // public function onTimerStart() as Boolean {
    //     _view.onTimerStart();
    //     return true;
    // }

    // public function onTimerLap() as Boolean {
    //     _view.onTimerLap();
    //     return true;
    // }

}


class LapEpH4RacerView extends WatchUi.DataField
{
    enum
    {
        STOPPED,
        PAUSED,
        RUNNING
    }
    
    .
    .
    .
    .
    

    //! constructor
    function initialize()
    {
        DataField.initialize();

        var info = Act.getActivityInfo();

        .
        .
        .
        .
        //! If the activity timer is greater than 0, then we don't know the lap or timer state.
        if( (info.timerTime != null) && (info.timerTime > 0) )
        {
            mLapCertainty = "?";
        }
        ephToMatch = App.getApp().getProperty("session1");
        isInTrainingMode = App.getApp().getProperty("inTraining");
    }