swift - 锁定/解锁 UIView 动画完成 block 中代码的关键部分 - Swift

Question

如何使用 Swift(在子类 UIView 中)锁定和解锁 UIView 动画完成 block 中的关键代码部分？

func MoveCard(sourcePile: Pile, destPile: Pile) {

    // Temporarily disable user interaction
    disableUserInteraction()

    // Move card from source pile to destination pile
    UIView.animateWithDuration(0.1) {
        () -> Void in

        // Move card center
        self.center = destPile.center

        // CRITICAL SECTION OF CODE
        // Add card to destination pile array
        destPile.cards.append(sourcePile.cards.last!)
        // Remove card from source pile array
        sourcePile.cards.removeLast()

        // Reenable user interaction
        enableUserInteraction()
    }
}    

Answer 1

试试这个:

UIView.animateWithDuration(0.1, animations: {
    // your animation code
}, completion: { (complete: Bool) in
    // your completion code
})