Change the height of UILabel dynamically based on content

Question

I have a UILabel as subview of UIButton and I am passing the value from another view and populating in UILabel. Now, I want that

Answer 1

This is the very simplest function for getting dynamic height for labels. You can just use this function.
Here ceil is the predefind function for returns the smallest integer value. And MAXHEIGHT is maximum height for uilabel for example you can give 1000 also for future caluclations...

-(CGFloat) getHeightForLabels : (UILabel *) label
    {

        CGSize widthMaxHeight = CGSizeMake(label.frame.size.width, MAXHEIGHT);
        CGSize size;

        NSStringDrawingContext *context = [[NSStringDrawingContext alloc] init];
        CGSize boundingRect = [label.text boundingRectWithSize:widthMaxHeight
                                                      options:NSStringDrawingUsesLineFragmentOrigin
                                                   attributes:@{NSFontAttributeName:label.font}
                                                      context:context].size;

        size = CGSizeMake(ceil(boundingRect.width), ceil(boundingRect.height));

        return size.height;
    }