Question

嘿我想创建一套游戏应用程序，现在我希望我的卡片（UIViews）移动到newPosition。在动画结束后，我希望此视图从超级视图中删除

   func btnUp(card: CardSubview, frame: CGRect) {

        let newPosition = CGRect(x: (self.superview?.frame.minX)!, y: (self.superview?.frame.maxY)!, width: card.bounds.width, height: card.bounds.height)
        //UIView.animate(withDuration: 3.0, animations: {card.frame = newPosition})
        UIView.animate(withDuration: 3.0, animations: {card.frame = newPosition}, completion: {if card.frame == newPosition {card.removeFromSuperview()}})

    }

这是有效但如果我想添加完成，我会收到此错误：

无法转换类型＆＃39;（） - ＆gt;的值（）＆＃39;预期的参数类型＆＃39;（（Bool） - ＆gt; Void）？＆＃39; **

所以我做错了什么？

Answer 1

试试这个：

您需要设置completion block变量

func btnUp(card: CardSubview, frame: CGRect) {

    let newPosition = CGRect(x: (self.superview?.frame.minX)!, y: (self.superview?.frame.maxY)!, width: card.bounds.width, height: card.bounds.height)
    //UIView.animate(withDuration: 3.0, animations: {card.frame = newPosition})
    UIView.animate(withDuration: 3.0, animations: {
        card.frame = newPosition
        }, completion: { finish in
             if card.frame == newPosition {card.removeFromSuperview()

        }})
}

Answer 2

UIView.animate(withDuration: 0.25, animations: {
   view.transform = CGAffineTransform(translationX: view.frame.maxX, y: 0)
},completion:{(completed:Bool) in
   if(completed){view.removeFromSuperview()}
})

Answer 3

Apple documentation说：

<强>完成

动画序列结束时要执行的块对象。这个   block没有返回值，并且只接受一个布尔参数   表示动画是否真正在之前完成   完成处理程序被调用。

因此，您需要将该布尔参数赋予完成处理程序：

For i2 = 1 To 99
        ModuleN = "B1M10"+i2
        BeckDIE = ModuleN
        BeckDIV = ModuleN
        ExIntCellE = Sheets("Internal").Cells(RowStart + i2, EnableModify).Value
        ExIntCellV = Sheets("Internal").Cells(RowStart + i2, ValueModify).Value
        Config.Controls(BeckDIE).Enabled = ExIntCellE
        Config.Controls(BeckDIV).Value = ExIntCellV
Next i2

如何为动画添加完成？

3 个答案: