How do I calculate the UILabel height dynamically [duplicate]

Answer 1

I'm adjust height, with 2 lines in my label

lblUserQuestion.preferredMaxLayoutWidth = 100.0f;

100.0f, it's a size i wanted, and another line,

[lblUserQuestion sizeToFit];

My method complete is,

UILabel *lblUserQuestion = [[UILabel alloc] initWithFrame:CGRectMake(61, 25, self.frame.size.width-61-20, 37.0f)];
    lblUserQuestion.numberOfLines= 0;
    lblUserQuestion.font =[UIFont fontWithName:@"HelveticaNeue-Thin" size:14.];
lblUserQuestion.adjustsFontSizeToFitWidth = YES;
    lblUserQuestion.minimumScaleFactor = 0.5;
    lblUserQuestion.preferredMaxLayoutWidth= 100.0f;
    lblUserQuestion.text = _photoToVote.label;