UIView的分类--iOS

最新推荐文章于 2017-09-06 08:58:57 发布

转载最新推荐文章于 2017-09-06 08:58:57 发布 · 156 阅读

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原文链接：http://www.cnblogs.com/PJXWang/p/5854811.html

本文介绍了一种在iOS开发中为UIView自定义属性的方法，包括x坐标、y坐标、宽度、高度、中心点X值和中心点Y值的直接设置，简化了布局调整过程。

#import <UIKit/UIKit.h>

@interface UIView (PJXExtension)

@property(assign,nonatomic) CGFloat x; //x坐标

@property(assign,nonatomic) CGFloat y; //y坐标

@property(assign,nonatomic) CGFloat width; //宽度

@property(assign,nonatomic) CGFloat height; //高度

@property(assign,nonatomic) CGFloat centerX; //中心点X值

@property(assign,nonatomic) CGFloat centerY; //中心点Y值

@end

#import "UIView+PJXExtension.h"

@implementation UIView (PJXExtension)

//x

-(void)setX:(CGFloat)x{

CGRect frame = self.frame;

frame.origin.x = x;

self.frame = frame;

}

-(CGFloat)x{

return self.frame.origin.x;

}

//y

-(void)setY:(CGFloat)y{

CGRect frame = self.frame;

frame.origin.y = y;

self.frame = frame;

}

-(CGFloat)y{

return self.frame.origin.y;

}

//width

-(void)setWidth:(CGFloat)width{

CGRect frame = self.frame;

frame.size.width = width;

self.frame = frame;

}

-(CGFloat)width{

return self.frame.size.width;

}

//height

-(void)setHeight:(CGFloat)height{

CGRect frame = self.frame;

frame.size.height = height;

self.frame = frame;

}

-(CGFloat)height{

return self.frame.size.height;

}

//centerX

-(void)setCenterX:(CGFloat)centerX{

CGRect frame = self.frame;

frame.origin.x = centerX - frame.size.width/2.0;

self.frame = frame;

}

-(CGFloat)centerX{

return CGRectGetMidX(self.frame);

}

//centerY

-(void)setCenterY:(CGFloat)centerY{

CGRect frame = self.frame;

frame.origin.y = centerY - frame.size.height/2.0;

self.frame = frame;

}

-(CGFloat)centerY{

return CGRectGetMidY(self.frame);

}

//中心X

-(CGFloat)centerX

{

return self.center.x;

}

-(void)setCenterX:(CGFloat)centerX

{

CGPoint center = self.center;

center.x = centerX;

self.center = center;

}

//中心点Y

-(CGFloat)centerY

{

return self.center.y;

}

-(void)setCenterY:(CGFloat)centerY

{

CGPoint center = self.center;

center.y = centerY;

self.center = center;

}

@end

转载于:https://www.cnblogs.com/PJXWang/p/5854811.html