Behavior on x not avaliable on Android whist NumberAnimation on x not available on Desktop

Image
{
	id: animateCapsule
	height: parent.width / 10
	width: height / 2
	property int xFrom: parent.width + height * 8
	property int xTo: -height * 2
	x: xFrom
	y: parent.height * 0.45
	source: "../../images/capsule.png"

	RotationAnimation on rotation
	{
		from: 0
		to: 360
		loops: Animation.Infinite
		duration: 2000
	}

	//@ Desktop works, not available on Android
	Behavior on x
	{
		NumberAnimation
		{
			from: animateCapsule.xFrom
			to: animateCapsule.xTo
			loops: Animation.Infinite
			duration: 2000
		}
	}

	//@ Android works, not available on Desktop
//        NumberAnimation on x
//        {
//            from: animateCapsule.xFrom
//            to: animateCapsule.xTo
//            loops: Animation.Infinite
//            duration: 2000
//        }
}