Sometimes UIButton.currentTitle is always nil, even though you have set it using interface builder and using UIButton.setTitle().

In this instance, use UIButton.titleLabel?.text. Theoretically when I read the documentation, these two are meant to point to the same thing. .currentTitle is read only, and .titleLabel is read and write.

However .titleLabel always returns what I expect, whereas .currentTitle sometimes is unexpectedly nil, even though I have set the text programmatically or through IB.

So for me, I'm going to always use .titleLabel?.text going forward.