UITapGestureRecognizer

I was using the following in iosView but now I have changed to Mobile it no longer works, is there a fix for this?

UITapGestureRecognizer1.numberOfTapsRequired = 1
UITapGestureRecognizer1.numberOfTouchesRequired = 1
declare sub setUserInteractionEnabled lib UIKitLib selector "setUserInteractionEnabled:" (obj_id as ptr, yesNo as Boolean)
setUserInteractionEnabled(WaveCanvas.Handle, True)
AddGestureRecognizer(UITapGestureRecognizer1)

How about making a sample project. You’ve got one declare there for four commands that need declares.