NSString UILabel 밑줄 긋기

- (void) setUnderLine:(UILabel*)label

{

    //글자 세팅

    NSString* str = @"Hello World";

    NSMutableAttributedString* attStr = [[NSMutableAttributedString alloc] initWithString:str];

    

    NSRange range1 = [str rangeOfString:@"Hello"];

    

    //밑줄 긋기

    [attStr addAttributes:@{NSUnderlineStyleAttributeName:@(NSUnderlineStyleSingle), NSUnderlineColorAttributeName:[UIColor greenColor]} range:range1];

    

    [label setAttributedText:attStr];

}

굵은 = NSUnderlineStyleThick