Buttons are disabled in a ScrollView - iOS Swift

Question

I have a button in a view inside a view inside a ScrollView:

UIScrollView
-ContentView
--PhoneNumberView
---UIButton

If the scrolling ability of the ScrollView is disabled the button clicks normally. However, if the scrolling is enabled the button seems to be disabled.

This is how I sent the content size of the ScrollView:

var contentRect = CGRectZero;
for view in self.contentView.subviews {
     contentRect = CGRectUnion(contentRect, view.frame)
}
scrollView.contentSize = contentRect.size
scrollView.contentSize.height = scrollView.contentSize.height+20

and I also set those properties

scrollView.userInteractionEnabled = true
scrollView.exclusiveTouch = true
scrollView.canCancelContentTouches = true
scrollView.delaysContentTouches = true

and I finally tried to create a subclass of UIScrollView and I ended up with this:

class myScrollView: UIScrollView {

    override func touchesShouldCancelInContentView(view: UIView) -> Bool {
        return false
    }
}

but still the button is not active whenever there is any scrolling.

How can I fix that?

Answer 1

Set the color of the ContentView & Scrollview. I think you are setting wrong contentsize. And your PhoneNumberView is outside the contentsize height.

EDIT

Answer 2

By setting

scrollView.exclusiveTouch = true

you tell scrollView to handle touches exclusively, so touches won't reach its subviews, so set this property to false

This line of code

scrollView.delaysContentTouches = true

basically delays touches on scrollview subviews, if you want button to respond immediately then set this property to false too.