Adding a touch Path

gistfile1.m

@implementation RoundTouchButton{
    CGPathRef touchPath;
}

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        // Initialization code
        touchPath = CGPathCreateWithEllipseInRect(CGRectMake(0, 0, self.frame.size.width, self.frame.size.height), NULL);
    }
    return self;
}

- (void)dealloc
{
    CGPathRelease(touchPath);
}

- (void)drawRect:(CGRect)rect
{
    // Drawing code
    // debug
    CGContextRef ctx = UIGraphicsGetCurrentContext();
    CGContextSetFillColorWithColor(ctx, [UIColor purpleColor].CGColor);
    CGContextSetLineWidth(ctx, 1);
    CGContextAddPath(ctx, touchPath);
    CGContextDrawPath(ctx, kCGPathFillStroke);
    UIGraphicsEndImageContext();
}

@end