gistfile1.m

- (CGSize)intrinsicContentSize {
    
    CGSize boundingSize = CGSizeMake(self.titleLabel.preferredMaxLayoutWidth - self.titleEdgeInsets.left - self.titleEdgeInsets.right, CGFLOAT_MAX);
    
    NSAttributedString *attributedTitle = [self attributedTitleForState:self.state];
    
    CGRect boundingRect;
    
    if(attributedTitle) {
        
        boundingRect = [attributedTitle boundingRectWithSize:boundingSize options:(NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading) context:NULL];
    }
    else {
        
        NSString *title = [self titleForState:self.state];
        
        boundingRect = [title boundingRectWithSize:boundingSize options:(NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading) attributes:@{NSFontAttributeName : self.titleLabel.font} context:NULL];
    }
    
    
    return CGSizeMake(boundingRect.size.width + self.titleEdgeInsets.left + self.titleEdgeInsets.right, boundingRect.size.height + self.titleEdgeInsets.top + self.titleEdgeInsets.bottom);
}