Autoshrink on a UILabel with multiple lines

Question

Is it possible to use the autoshrink property in conjunction on multiple lines on a UILabel? for example, the large text size possible on 2 available lines.

Answer 1

Thank you to DaGaMs for this solution.

I've updated it as follows:

1 - To work with iOS 6 (since both minimumFontSize and UILineBreakModeWordWrap are deprecated) 2 - To strip whitespace from the label's text, as it will cause the resizing to fail (you don't want to know how long it took me to find that bug)

-(void)adjustFontSizeToFit 
{
    self.text = [self.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];

    UIFont *font = self.font;
    CGSize size = self.frame.size;

    for (CGFloat maxSize = self.font.pointSize; maxSize >= self.minimumScaleFactor; maxSize -= 1.f)
    {
        font = [font fontWithSize:maxSize];
        CGSize constraintSize = CGSizeMake(size.width, MAXFLOAT);
        CGSize labelSize = [self.text sizeWithFont:font constrainedToSize:constraintSize lineBreakMode:NSLineBreakByWordWrapping];
        if(labelSize.height <= size.height)
        {
            self.font = font;
            [self setNeedsLayout];
            break;
        }
    }
    // set the font to the minimum size anyway
    self.font = font;
    [self setNeedsLayout];
}