更新日期：2017年03月12日

對(duì)于UIView的一些 extension 方法（動(dòng)畫等...）

1.平移動(dòng)畫

 /// 視圖位移 x
    ///
    /// - Parameters:
    ///   - x: 坐標(biāo)點(diǎn)x
    ///   - duration: 動(dòng)畫時(shí)間
    func moveViewWithAnimateXPoint(XPoint x:CGFloat , duration:CGFloat) ->Void {
        
        UIView.animate(withDuration: TimeInterval(duration), delay: 0, options: .curveEaseInOut, animations: {
            // 動(dòng)畫操作
            self.frame.origin.x = x
            
        }, completion: nil)
        
    }
    /// 視圖位移 y
    ///
    /// - Parameters:
    ///   - y: 坐標(biāo)點(diǎn)y
    ///   - duration: 動(dòng)畫時(shí)間
    func moveViewWithAnimateYPoint(YPoint y:CGFloat , duration:CGFloat) -> Void {
        UIView.animate(withDuration: TimeInterval(duration), delay: 0, options: .curveEaseInOut, animations: {
            // 動(dòng)畫操作
            self.frame.origin.y = y
            
        }, completion: nil)

    }
    /// 根據(jù)坐標(biāo)點(diǎn)進(jìn)行位移動(dòng)畫
    ///
    /// - Parameters:
    ///   - point: CGPoint
    ///   - duration: 動(dòng)畫時(shí)長(zhǎng)
    func moveViewWithAnimateToPoint(Point point:CGPoint ,duration:CGFloat ) -> Void {
        self.moveViewWithAnimateXPoint(XPoint: point.x, duration: duration)
        self.moveViewWithAnimateYPoint(YPoint: point.y, duration: duration)
    }

    /// 根據(jù)視圖中心點(diǎn)進(jìn)行位移
    ///
    /// - Parameters:
    ///   - point: center
    ///   - duration: 動(dòng)畫時(shí)長(zhǎng)
    func moveViewWithAnimateToCenterPoint(CenterPoint point:CGPoint , duration:CGFloat ) -> Void {
        UIView.animate(withDuration: TimeInterval(duration), delay: 0, options: .curveEaseInOut, animations: {
            // 動(dòng)畫操作
            self.center = point
        }, completion: nil)
    }

對(duì)于UIImage的一些擴(kuò)展

1.圖片壓縮

/// 圖片的寬
    var width:CGFloat { return self.size.width }
    
    /// 圖片的高
    var height:CGFloat { return self.size.height }

    /// 壓縮圖片
    ///
    /// - Parameter costomWidth: 指定寬度
    /// - Returns: 壓縮過后的圖片
    func imageReduceSize(byWidth costomWidth:CGFloat) -> UIImage {
        
        let costomHeight = (costomWidth / width) * height
        UIGraphicsBeginImageContext(CGSize(width: costomWidth, height: costomHeight))
        self.draw(in: CGRect(x: 0, y: 0, width: costomWidth, height: costomHeight))
        let newImage:UIImage = UIGraphicsGetImageFromCurrentImageContext()!
        UIGraphicsEndImageContext()
        
        return newImage
    }