Bring UIImageView to front while animating

Question

How can we make an UIImageView to go over/above other subview/UIImageView while animating? Please check the white king in the picture

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)