Swift: userInteractionEnabled for subviews in spinning wheel concept

Question

I am trying spinning wheel concept in iOS. My base tutorial is here

UIControl is core here. Superview's userinteraction was disabled always.

So how to enable userinteraction for its subviews alone?

I have added UITapGestureRecognizer to SmallRoundViews. Gesture is not working.

If I change superview's userinteraction to enable, gesture is working. But, its not spinning.

If I change superview's userinteraction to disable, spinning is working. But gesture is not working.

I need everything to be done. Can you guide me?

I don't know for sure but I can think of at least one reason for this to be impossible: Since interactions are propagated from the parent to its children it is likely that the parent does not delegate anything if interaction is disabled, period. Pseudo: `if userInteractionDisabled return else delegateToChildren()` — luk2302, Dec 29 '17 at 12:45

score 2 · Accepted Answer · answered Jan 01 '18 at 16:20

Following code is working for,

If I change superview's userinteraction to true, both UITapGestureRecognizer and spinning is working..

Override UITouch method in UIControl subclass.

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {

        let touch : UITouch = touches.first!
        self.beginTracking(touch, with: event)
}
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {

        let touch : UITouch = touches.first!
        self.continueTracking(touch, with: event)
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {

        let touch : UITouch = touches.first!
        self.endTracking(touch, with: event)

}

Swift: userInteractionEnabled for subviews in spinning wheel concept

1 Answers1