232      阿里云  技术社区[云栖]

UIView扩展，很实用

//
//  UIView+Ext.h
//  HomeLinkProject
//
//  Created by huangyibiao on 14-6-1.
//  Copyright (c) 2014年 huangyibiao. All rights reserved.
//

#import <UIKit/UIKit.h>

///< UIView的扩展类
///< @author huangyibiao
@interface UIView (Ext)

/**
 * @brief Shortcut for frame.origin.x.
 *        Sets frame.origin.x = originX
 */
@property (nonatomic) CGFloat originX;

/**
 * @brief Shortcut for frame.origin.y
 *        Sets frame.origin.y = originY
 */
@property (nonatomic) CGFloat originY;

/**
 * @brief Shortcut for frame.origin.x + frame.size.width
 *       Sets frame.origin.x = rightX - frame.size.width
 */
@property (nonatomic) CGFloat rightX;

/**
 * @brief Shortcut for frame.origin.y + frame.size.height
 *        Sets frame.origin.y = bottomY - frame.size.height
 */
@property (nonatomic) CGFloat bottomY;

/**
 * @brief Shortcut for frame.size.width
 *        Sets frame.size.width = width
 */
@property (nonatomic) CGFloat width;

/**
 * @brief Shortcut for frame.size.height
 *        Sets frame.size.height = height
 */
@property (nonatomic) CGFloat height;

/**
 * @brief Shortcut for center.x
 * Sets center.x = centerX
 */
@property (nonatomic) CGFloat centerX;

/**
 * @brief Shortcut for center.y
 *        Sets center.y = centerY
 */
@property (nonatomic) CGFloat centerY;

/**
 * @brief Shortcut for frame.origin
 */
@property (nonatomic) CGPoint origin;

/**
 * @brief Shortcut for frame.size
 */
@property (nonatomic) CGSize size;

///< 移除此view上的所有子视图
- (void)removeAllSubviews;

@end

//
//  UIView+Ext.m
//  HomeLinkProject
//
//  Created by huangyibiao on 14-6-1.
//  Copyright (c) 2014年 huangyibiao. All rights reserved.
//

#import "UIView+Ext.h"

@implementation UIView (Ext)

- (CGFloat)originX {
    return self.frame.origin.x;
}

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

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

- (void)setOriginY:(CGFloat)originY {
    CGRect frame = self.frame;
    frame.origin.y = originY;
    self.frame = frame;
    return;
}

- (CGFloat)rightX {
    return [self originX] + [self width];
}

- (void)setRightX:(CGFloat)rightX {
    CGRect frame = self.frame;
    frame.origin.x = rightX - [self width];
    self.frame = frame;
    return;
}

- (CGFloat)bottomY {
    return [self originY] + [self height];
}

- (void)setBottomY:(CGFloat)bottomY {
    CGRect frame = self.frame;
    frame.origin.y = bottomY - [self height];
    self.frame = frame;
    return;
}

- (CGFloat)centerX {
    return self.center.x;
}

- (void)setCenterX:(CGFloat)centerX {
    self.center = CGPointMake(centerX, self.center.y);
    return;
}

- (CGFloat)centerY {
    return self.center.y;
}

- (void)setCenterY:(CGFloat)centerY {
    self.center = CGPointMake(self.center.x, centerY);
    return;
}

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

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

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

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

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

- (void)setOrigin:(CGPoint)origin {
    CGRect frame = self.frame;
    frame.origin = origin;
    self.frame = frame;
    return;
}

- (CGSize)size {
    return self.frame.size;
}

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

///< 移除此view上的所有子视图
- (void)removeAllSubviews {
    for (UIView *view in self.subviews) {
        [view removeFromSuperview];
    }
    return;
}

@end

最后更新：2017-04-03 05:39:42

  上一篇： js遍历 子节点 子元素

  下一篇： 性能测试服务（PTS）公测