Adding autolayout constraints to navigation controller programmatically

Question

I am trying to add constraints to a UI label I added on a navigation bar. The UI label shows a running timer

Here is my code,

self.label = [[UILabel          


        

Answer 1

I ended up adding the timer label as a right button bar item on the navigation bar. It is a hacky way to do it. But since adding constraints is not possible, it is a workaround.