SWIFT-View扩展

import Foundation
import UIKit

extension UIView {
    
    //获取视图的X坐标
    public var x:CGFloat{
        get{
            return self.frame.origin.x;
        }
        
        set{
            var frames = self.frame;
            frames.origin.x = CGFloat(newValue);
            self.frame = frames;
        }
    }
    
    //获取视图的Y坐标
    public var y:CGFloat{
        get{
            return self.frame.origin.y;
        }
        
        set{
            var frames = self.frame;
            frames.origin.y = CGFloat(newValue);
            self.frame = frames;
        }
    }
    
    //获取视图的宽
    public var width:CGFloat{
        get{
            return self.frame.size.width;
        }
        
        set{
            var frames = self.frame;
            frames.size.width = CGFloat(newValue);
            self.frame = frames;
        }
    }
    
    //获取视图的高
    public var height:CGFloat{
        get{
            return self.frame.size.height;
        }
        
        set{
            var frames = self.frame;
            frames.size.height = CGFloat(newValue);
            self.frame = frames;
        }
    }
    
    //获取最大的y坐标
    public var bottom:CGFloat{
        get{
            return self.y + self.height;
        }
        
        set{
            var frames = self.frame;
            frames.origin.y = CGFloat(newValue - self.height);
            self.frame = frames;
        }
    }
    
    //获取最大的X坐标
    public var right:CGFloat{
        get{
            return self.x + self.width;
        }
        
        set{
            var frames = self.frame;
            frames.origin.x = CGFloat(newValue - self.width);
            self.frame = frames;
        }
    }
    
    //中心点X坐标
    public var centerX:CGFloat{
        get{
            return self.center.x;
        }
        set{
            self.center = CGPoint(x:CGFloat(newValue),y:self.center.y);
        }
    }
    
    //中心点Y坐标
    public var centerY:CGFloat{
        get{
            return self.center.y;
        }
        set{
            self.center = CGPoint(x:self.center.x,y:CGFloat(newValue));
        }
    }
    
    /// 删除所有的子视图
    func removeAllSubView() -> Void {
        for view : UIView in self.subviews{
            view.removeFromSuperview();
        }
    }