UIScrollViewのタップの遅延をなくす

サブクラスを作る

説明

delaysContentTouches
遅延させるか？

A Boolean value that determines whether the scroll view delays the handling of touch-down gestures

touchesShouldCancel(in view: UIView) -> Bool
ドラッグしだしたらキャンセルするか？

Returns whether to cancel touches related to the content subview and start dragging.

class NoTapDelayScrollView: UIScrollView {

    override init(frame: CGRect) {
        super.init(frame: frame)
        delaysContentTouches = false
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        delaysContentTouches = false
    }
    
    override func touchesShouldCancel(in view: UIView) -> Bool {
        return true
    }
}