构建一个基于UIView的类别

　　很多时候，如果我们想给我们的控件赋值，例如给控件的长度、宽度等赋值，很麻烦

　　需要先获取到当前frame，再整个临时frame来保存，修改赋值后再还给当前的frame，这都是重复性高的苦力活，解决方法就是写一个类别，这些步骤都挂起来，大家一起用。

　　话不多说看类别：

头文件：

　　

 //
 //  UIView+Extension.h
 //  XibaTest
 //
 //  Created by bos on 15-6-11.
 //  Copyright (c) 2015年 axiba. All rights reserved.
 //

 #import <UIKit/UIKit.h>

 @interface UIView (Extension)

 @property (nonatomic,assign) CGFloat x;
 @property (nonatomic,assign) CGFloat y;
 @property (nonatomic,assign) CGFloat centerX;
 @property (nonatomic,assign) CGFloat centerY;
 @property (nonatomic,assign) CGFloat width;
 @property (nonatomic ,assign) CGFloat height;
 @property (nonatomic, assign) CGSize size;
 @property (nonatomic,assign) CGPoint orign;

 @end

代码文件：

 //
 //  UIView+Extension.m
 //  XibaTest
 //
 //  Created by bos on 15-6-11.
 //  Copyright (c) 2015年 axiba. All rights reserved.
 //

 #import "UIView+Extension.h"

 @implementation UIView (Extension)

 -(void)setX:(CGFloat)x
 {
     CGRect frame = self.frame;
     frame.origin.x = x;
     self.frame = frame;
 }
 -(CGFloat)x
 {
     return self.frame.origin.x;
 }

 -(void)setY:(CGFloat)y
 {
     CGRect frame = self.frame;
     frame.origin.y = y;

     self.frame = frame;
 }
 -(CGFloat)y
 {
     return self.frame.origin.y;
 }

 -(void)setCenterX:(CGFloat)centerX
 {
     CGPoint center = self.center;
     center.x = centerX;
     self.center = center;
 }
 -(CGFloat)centerX
 {
     return self.center.x;
 }

 -(void)setCenterY:(CGFloat)centerY
 {
     CGPoint center = self.center;
     center.y = centerY;
     self.center = center;
 }
 -(CGFloat)centerY
 {
     return self.center.y;
 }

 -(void)setWidth:(CGFloat)width
 {
     CGRect frame = self.frame;
     frame.size.width = width;

     self.frame = frame;
 }
 -(CGFloat)width
 {
     return self.frame.size.width;
 }

 -(void)setHeight:(CGFloat)height
 {
     CGRect frame = self.frame;
     frame.size.height = height;

     self.frame = frame;
 }
 -(CGFloat)height
 {
     return self.frame.size.height;
 }

 -(void)setSize:(CGSize)size
 {
     CGRect frame = self.frame;
     frame.size =size;
     self.frame = frame;
 }
 -(CGSize)size
 {
     return self.frame.size;
 }

 -(void)setOrign:(CGPoint)orign
 {
     CGRect frame = self.frame;
     frame.origin = orign;

     self.frame = frame;
 }
 -(CGPoint)orign
 {
     return self.frame.origin;
 }

 @end

　　写完类别，记得引入，可以在个别控制器中单独引入，也可以在pch文件中 　#import "UIView+Extension.h" ,大家一起用。