The most simple way is to just add a gesture recognizer to the actual view (be it a UILabel or some custom view of your own). In order for the gesture recognizer to work, the view must be set userInteractionEnabled. Here’s an example, assuming that your label view (or whatever it is) is called labelView: … Read more
I’m not sure if this is entirely accurate, but it should be pretty close, hopefully. It may not take truncated strings into account, or the height of the label, but that’s something you might be able to do manually. The method – (CGSize)sizeWithFont:(UIFont *)font minFontSize:(CGFloat)minFontSize actualFontSize:(CGFloat *)actualFontSize forWidth:(CGFloat)width lineBreakMode:(UILineBreakMode)lineBreakMode will return the text size, and … Read more
Example with UILabel: UILabel *label = (UILabel *)[self.view viewWithTag:1]; good luck!
If you use the new UIFont methods then you’re pretty much there – you just need to add the observer to listen for changes. Rather than setting a specific font size, you should use the preferredFontForTextStyle: and related methods when styling your labels (if you’re using Interface Builder you can select a style directly in … Read more