动画时将UIImageView放在最前面

Question

制作动画时，如何使UIImageView移至其他子视图/ UIImageView上方/上方？ 请检查图片中的白王

UIView.animateWithDuration(3, animations:{                    
                    self.squares[moveInfo.start.0][moveInfo.start.1].occupyingPieceImageView.frame =
                    self.squares[moveInfo.end.0][moveInfo.end.1].frame

                    }

Answer 1

UIView.animateWithDuration(3, animations:{
                    self.view.bringSubViewToFront(self.squares[moveInfo.start.0][moveInfo.start.1].occupyingPieceImageView)                  
                    self.squares[moveInfo.start.0][moveInfo.start.1].occupyingPieceImageView.frame =
                    self.squares[moveInfo.end.0][moveInfo.end.1].frame

                    }

Answer 2

如果piece是您要位于其兄弟姐妹前面的UIImageView ，请使用：

piece.superview?.bringSubviewToFront(piece)