Subclass simple UIButton to checkbox - iphone

Question

i am subclassing UIButton to create a simple Checkbox behavior. here is the code :
#import "RadioButton.h"
#implementation RadioButton
#synthesize isSelected;
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
[self ChangeButtonState];
}
-(void)ChangeButtonState{
if (!isSelected) {
isSelected = YES;
[self setBackgroundImage:[UIImage imageNamed:#"radiobtn_on.png"] forState:UIControlStateNormal];
}
else{
isSelected = NO;
[self setBackgroundImage:[UIImage imageNamed:#"radiobtn_off.png"] forState:UIControlStateNormal];
}
}
-(id)init{
self.adjustsImageWhenHighlighted=YES;
self.alpha = 1;
[self ChangeButtonState];
isSelected = NO;
[self setBackgroundImage:[UIImage imageNamed:#"radiobtn_off.png"] forState:UIControlStateNormal];
return self;
}
- (id)initWithFrame:(CGRect)frame
{
[self setBackgroundImage:[UIImage imageNamed:#"radiobtn_off.png"] forState:UIControlStateNormal];
isSelected = NO;
self = [super initWithFrame:frame];
if (self) {
// Initialization code
}
return self;
}
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect
{
// Drawing code
}
*/
#end
first, when i set the class in the interface builder to a button when i launch the app i dont see anything until i hit this invisible button.
the seconed thing is the images looks dark then the original
help would be great!
thanks!

Answer 1

try your stuff in - (void)awakeFromNib. define this method in your subclass. When you assign your custom class in xib then this method will be called and apply your logic there.