ios - 如何使用 Swift 从右到左和从左到右设置自定义 View 的动画

Question

我设计了一个 View 。通常，当我单击按钮时，此 View 将显示和隐藏。现在我正在尝试从左到右和从右到左为该 View 设置动画。下面是我的代码，但它不起作用。请检查一下。

if(self.openedView) {
        self.openedView = false;
        UIView.animate(withDuration: 0.3, delay: 0.0, options: .curveEaseIn, animations: {() -> Void in



        }, completion: {(_ finished: Bool) -> Void in
        })

         shareMainView.isHidden = true;
    } else {
         self.openedView = true;
        UIView.animate(withDuration: 0.3, delay: 0.0, options: .curveEaseOut, animations: {() -> Void in
        }, completion: {(_ finished: Bool) -> Void in
            /*done*/
        })

        shareMainView.isHidden = false;
    }

shareMainView.isHidden = false;这是我的 View ，它将随动画打开和隐藏。

Answer 1

extension UIView {
  func comingFromRight(containerView: UIView) {
    let offset = CGPoint(x: containerView.frame.maxX, y: 0)
    let x: CGFloat = 0, y: CGFloat = 0
    self.transform = CGAffineTransform(translationX: offset.x + x, y: offset.y + y)
    self.isHidden = false
    UIView.animate(
        withDuration: 1, delay: 0, usingSpringWithDamping: 0.47, initialSpringVelocity: 3,
        options: .curveEaseOut, animations: {
            self.transform = .identity
            self.alpha = 1
    })

} } 

您可以像这样使用它:

anyView.comingFromRight(containerView: anyView.superview)