drawRect radias view

drawRect radias view

- (void)drawRect:(CGRect)rect
{
    // Drawing code
    
    CGContextRef context = UIGraphicsGetCurrentContext();
    
    CGMutablePathRef path = createRoundeRectForRect(self.bounds, 15.0);
    
    CGContextSaveGState(context);
    CGContextSetFillColorWithColor(context, [UIColor redColor].CGColor);
    CGContextAddPath(context, path);
    CGContextFillPath(context);
    CGContextRestoreGState(context);
    
    CGContextRelease(context);
}

#pragma mark - private method
CGMutablePathRef createRoundeRectForRect(CGRect rect, CGFloat radius)
{
    CGMutablePathRef path = CGPathCreateMutable();
    
    CGPathMoveToPoint(path, NULL, CGRectGetMidX(rect), CGRectGetMinY(rect));
    
    CGPathAddArcToPoint(path, NULL, CGRectGetMaxX(rect), CGRectGetMinY(rect),
                        CGRectGetMaxX(rect), CGRectGetMaxY(rect), radius);
    
    CGPathAddArcToPoint(path, NULL, CGRectGetMaxX(rect), CGRectGetMaxY(rect),
                        CGRectGetMinX(rect), CGRectGetMaxY(rect), radius);
    
    CGPathAddArcToPoint(path, NULL, CGRectGetMinX(rect), CGRectGetMaxY(rect),
                        CGRectGetMinX(rect), CGRectGetMinY(rect), radius);
    
    CGPathAddArcToPoint(path, NULL, CGRectGetMinX(rect), CGRectGetMinY(rect),
                        CGRectGetMaxX(rect), CGRectGetMinY(rect), radius);
    
    CGPathCloseSubpath(path);
    
    return path;
}