Inverse UIlabel text color when its frame intersects an UIView

Question

Hi Im trying to change the text color of a UILabel in the case when the labels rect intersects an UIView, i was thinking maybe there is a property or something i can use. L

Answer 1

Take a look at this tutorial for creating alpha masks with text. Using this technique you can implement a standard progress bar that moves across both the foreground and the background view to achieve the effect you want.