Android Question How to convert TimerTask part from Java to B4A

Sub Gesture_onDoubleTap(X As Float, Y As Float, MotionEvent As Object)
'    Log("   onDoubleTap x = " & X & ", y = " & Y & ", ev = " & MotionEvent)
    '    ToastMessageShow("Double-Tap", False)
    Dim initial As Double : initial = zoom
    Dim f As Double : f = 1.5 * zoom
    Dim ctr As Vector2D
    Dim increment As Double
    Dim finalzoom As Double
    If f> 3000 Then f=2999
    finalzoom = f
    increment = (finalzoom - initial)/10
    ctr.Initialize(0,0)
    ctr.Xx = x
    ctr.Yy =y
    Dim v As Double : v= zoom + increment
    If v> finalzoom Then
    Else
        centeredZoom(ctr,zoom+increment)
    End If
End Sub

@override
        public boolean onDoubleTap(MotionEvent e)
        {
            //Smooth zoom animation: zoom 1.5X in 200ms
            final float initial = zoom;
            float f = 1.5f * zoom;
            if (f > 3000) f = 2999;
            final float finalzoom = f;
            final float increment = (finalzoom - initial) / 10;

            final Vector2D ctr = new Vector2D(e.getX(), e.getY());

            final Timer rTimer = new Timer();
            TimerTask rTask = new TimerTask()
            {
               @override
                public void run()
                {
                    ((Activity) ctx).runOnUiThread(new Runnable()
                    {
                        @override
                        public void run()
                        {
                            float v = zoom + increment;
                            if (v > finalzoom)
                            {
                                rTimer.cancel();
                            } else
                            {
                                centeredZoom(ctr, zoom + increment);
                            }
                        }
                    });
                }
            };
            rTimer.schedule(rTask, 0, 20);


            return false;
        }