A small category on UILabel to allow for auto shrinking of text for multi line UILabels. Based on the implementation described here: http://www.11pixel.com/blog/28/resize-multi-line-text-to-fit-uilabel-on-iphone/

UILabel+AutoShrink.m

@implementation UILabel (AutoShrink)

- (void)resizeTextToFit
{
    int currentFontSize = (int) self.font.pointSize;
    int minimumFontSize = (int) (self.minimumScaleFactor*currentFontSize);
    
    UIFont *font = self.font;
    
    for(int i = currentFontSize; i > minimumFontSize; i=i-2)
    {
        font = [font fontWithSize:i];
        
        
        CGRect boundingRect = [self.text boundingRectWithSize:CGSizeMake(self.bounds.size.width, MAXFLOAT)
                                                      options:NSStringDrawingUsesLineFragmentOrigin
                                                   attributes:@{NSFontAttributeName:font}
                                                      context:nil];
        
        if (boundingRect.size.height <= self.bounds.size.height) break;
    }
    
    self.font = font;
}

@end