ios - 如何让CAKeyframeAnimation在动画期间与用户交互？

Question

CAKeyframeAnimation 不喜欢这样:

[UIView animateWithDuration:0.0 delay:0.0 options:UIViewAnimationOptionAllowUserInteraction animations:^{
    ..
} completion:nil];

我们无法设置options:UIViewAnimationOptionAllowUserInteraction。有谁有一个好主意让它在动画期间与用户交互？

Answer 1

我解决了设置计时器以在动画期间更新帧的问题。

//Timer: To update the UI frame
Timer.scheduledTimer(timeInterval: 0.15, target: self, selector: #selector(updateFrame), userInfo: nil, repeats: true)

//Timer Selector
@objc func updateFrame(){
    //getting the layer presentation bounds
    let layer = "button, label...".layer.presentation()!

    let point = CGPoint(x: layer.frame.origin.x, y: layer.frame.origin.y)
    let size = CGSize(width: layer.frame.width, height: layer.frame.height)
    // Update the UI element frame location
    "ui element".frame = CGRect(origin: point, size: size)
}