A parent view to redirect touch events to its first child, can be used to extend scrollable area of a small UIScrollView

TouchProxyView.swift

// Make sure you disable user interractions on the first child of this view
class TouchProxyView: UIView {
    override init(frame: CGRect) {
        super.init(frame: frame)
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
    
    override func hitTest(point: CGPoint, withEvent event: UIEvent?) -> UIView? {
        let v = super.hitTest(point, withEvent: event)
        
        if v == self {
            if let c = v?.subviews.first {
                return c
            }
        }
        
        return v
    }
}

Swift 4.2

  override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
    let v = super.hitTest(point, with: event)
    
    if v == self {
      if let c = v?.subviews.first {
        return c
      }
    }
    
    return v

  }