Calculate Height of Text from Width of an UILabel

UILabel *type;

type.frame=[self calculateHeightOfTextFromWidth:type withText:type.text];

-(CGRect) calculateHeightOfTextFromWidth:(UILabel*)detailLabel withText:(NSString*)text

{

    

    CGRect currentFrame = detailLabel.frame;

    CGSize max = CGSizeMake(detailLabel.frame.size.width, 500);

    CGSize expected = [text sizeWithFont:detailLabel.font constrainedToSize:max lineBreakMode:detailLabel.lineBreakMode]; 

    currentFrame.size.height = expected.height;

    return currentFrame;

}