UIButton touchUp被吞下

Question

快速触摸UIButton并不能完成所有触摸操作 给接收者。

有追索权吗？

iOS 12，以防万一。真实设备和模拟器

Answer 1

我正在对处理程序中的触摸进行动画处理：

        // https://stackoverflow.com/questions/46021640/how-to-sequence-two-animations-with-delay-in-between
        let scaleForwardAnimationDuration: TimeInterval = 0.15
        let transformBackAnimationDuration: TimeInterval = 0.1
        let animationDuration: TimeInterval = scaleForwardAnimationDuration + transformBackAnimationDuration

        UIView.animateKeyframes(withDuration: animationDuration, delay: 0, options: [], animations: {
            UIView.addKeyframe(withRelativeStartTime: 0, relativeDuration: scaleForwardAnimationDuration) {
                sender.transform = CGAffineTransform(scaleX: 0.75, y: 0.75)
            }

            UIView.addKeyframe(withRelativeStartTime: scaleForwardAnimationDuration, relativeDuration: transformBackAnimationDuration) {
                sender.transform = .identity
            }
        })

导致输入下降 由于.allowUserInteraction 外部动画块的选项中缺少