CheckBox by Vladimir Kalinichenko

MBCheckBox.h

#import "MBButton.h"

@interface MBCheckBox : MBButton

@property (nonatomic) BOOL isActive;

- (void)setActivated:(BOOL)activated animated:(BOOL)animated;

@end

MBCheckBox.m

#import "MBCheckBox.h"

static NSString *checkBoxOn = @"loginCheckBoxOn";
static NSString *checkBoxOff = @"loginCheckBox";

@interface MBCheckBox()



@end


@implementation MBCheckBox

- (void)touchEnded{
    [super touchEnded];
    if(self.isActive){
        [self setActivated:NO animated:YES];
    }else{
        [self setActivated:YES animated:YES];
    }
}

- (void)setActivated:(BOOL)activated animated:(BOOL)animated{
    self.isActive = activated;
    UIImage *imageForState;
    if(self.isActive){
        imageForState = [UIImage imageNamed:checkBoxOn];
    }else{
        imageForState = [UIImage imageNamed:checkBoxOff];
    }
    CGRect boundsOld = self.picture.bounds;
    CGRect bounds = boundsOld;
    bounds.size.height /= 1.5;
    bounds.size.width /= 1.5;
    [UIView animateWithDuration:0.1 animations:^{
        self.picture.bounds = bounds;
    } completion:^(BOOL finished) {
        dispatch_async(dispatch_get_main_queue(), ^{
            self.picture.image = imageForState;
        });
        [UIView animateWithDuration:0.05 animations:^{
            self.picture.bounds = boundsOld;
        }];
    }];
}

@end