UIView.animate - Swift 3 - 完成

Question

如何在 Swift 3 中完成一个简单的完成块？

我想在动画完成时设置self.isOpen = true：

            UIView.animate(withDuration: 0.25, delay: 0.0, options: [], animations: {
                self.isOpen = true
                self.drawerView?.frame = CGRect(x: 0, y: 0, width: (self.drawerView?.frame.size.width)!, height: (self.drawerView?.frame.size.height)!)
                self.contentView?.frame = CGRect(x: 200, y: 0, width: (self.contentView?.frame.size.width)!, height: (self.contentView?.frame.size.height)!)
            }, completion: nil)

顺带一提：

学习 Swift 3 atm 几乎是不可能的，因为互联网上什么都没有:(

我还搜索了整个文档，甚至没有提到 "animate" 这个词，但找不到任何内容：

https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/index.html#//apple_ref/doc/uid/TP40014097-CH3-ID0

Answer 1

你这样添加：

UIView.animate(withDuration: 0.25, delay: 0.0, options: [], animations: {
    self.drawerView?.frame = CGRect(x: 0, y: 0, width: (self.drawerView?.frame.size.width)!, height: (self.drawerView?.frame.size.height)!)
    self.contentView?.frame = CGRect(x: 200, y: 0, width: (self.contentView?.frame.size.width)!, height: (self.contentView?.frame.size.height)!)
}, completion: { (finished: Bool) in
    self.isOpen = true
})

UIView.animate - Swift 3 - 完成

UIView.animate - Swift 3 - completion

uiviewanimation

ios

swift3