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。