ios自定义checkbox

//Author：smilelance

//From：http://blog.youkuaiyun.com/smilelance

#import <UIKit/UIKit.h>

@interface PDECheckBox : UIButton

{

BOOL isChecked;

}

- (id)initWithCenter:(CGPoint)center;

- (BOOL)isChecked;

- (void)setCheckState:(BOOL)checked;

- (void)switchCheckState;

@end

#import "PDECheckBox.h"

#define IMAGE_CHECKED @"checkbox_gray_sel.png"

#define IMAGE_UNCHECKED @"checkbox_gray.png"

@implementation PDECheckBox

- (id)initWithFrame:(CGRect)frame

{

self = [super initWithFrame:frame];

if (self) {

// Initialization code

}

return self;

}

- (id)initWithCenter:(CGPoint)center

{

// UIImage *imgChecked = [UIImage imageNamed:IMAGE_CHECKED];

UIImage *imgUnChecked = [UIImageimageNamed:IMAGE_UNCHECKED];

CGSize size = imgUnChecked.size;

CGRect frame = CGRectMake(center.x-size.width/2, center.y-size.height/2,

size.width, size.height);

self = [super initWithFrame:frame];

if (self) {

// Initialization code

[selfsetImage:imgUnChecked forState:UIControlStateNormal];

isChecked = NO;

[selfaddTarget:selfaction:@selector(switchCheckState)forControlEvents:UIControlEventTouchUpInside];

}

return self;

}

- (BOOL)isChecked

{

returnisChecked;

}

- (void)switchCheckState

{

[selfsetCheckState:!isChecked];

}

- (void)setCheckState:(BOOL)checked

{

if (checked != isChecked) {

isChecked = checked;

if (isChecked) {

[selfsetImage:[UIImageimageNamed:IMAGE_CHECKED]forState:UIControlStateNormal];

}else {

[selfsetImage:[UIImageimageNamed:IMAGE_UNCHECKED]forState:UIControlStateNormal];

}

}

}

@end