学步园

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博文原创，转载请声明出处

电子咖啡(原id蓝岩)

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IOS中没有checkbox和radio button ,这一点对于做过android的童鞋会觉得挺无语的，没关系，我们自己写一个view来实现自己的单、复选框。

首先在你的资源里面添加2张图片，一张为按钮的选中状态，另一个为没选中状态，分别命名：unchecked.png，checked.png，下面上代码，相信你看得懂。，如有疑问，欢迎留言交流。

UICheckBox.h

#import <UIKit/UIKit.h>

@interface UICheckBox : UIButton

@end

UICheckBox.m

#import "UICheckBox.h"

@implementation UICheckBox

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
       [self setBackGroundImage];
    }
    return self;
}
- (void)setBackGroundImage {
    [self setBackgroundImage:[UIImage imageNamed:@"unchecked.png"] forState:UIControlStateNormal];
    [self setBackgroundImage:[UIImage imageNamed:@"checked.png"] forState:UIControlStateSelected];        
    [self addTarget:self action:@selector(touchUIInside:) forControlEvents:UIControlEventTouchUpInside];
}

-(id)initWithCoder:(NSCoder *)aDecoder{
    self =  [super initWithCoder:aDecoder];
    if (self) {
        [self setBackGroundImage];
    }
    return self;
}

-(IBAction)touchUIInside:(id)sender{
   UICheckBox* cb= (UICheckBox*)sender;
    cb.selected = !cb.selected;  
    
}