Finding and debugging constraints

- [Instructor] One of the most frustrating things…about working with layout constraints…is debugging them in code.…Luckily Xcode lets us add identifiers…to our constraints to make finding them a little bit easier.…Let's go into the storyboard and select…the newsletter view from the document outline.…We want to find its height constraint,…so we'll go into its sub folder…called Constraints, select height.…Make sure the Utilities panel is open…and that we're in the Attributes Inspector tab.…

And here in the identifier field…we'll set this to newsletter height.…Don't forget to hit Enter.…For this part of the screen's animation…we want the newsletter view's height to increase…when we tap the More Info button,…giving it an expanding effect.…Now we've added an identifier for the height constraint,…now all we need to do is find it and adjust it.…Now we could easily do this inside our…constraints animation view controller file,…but it's going to make our lives a lot easier…because this is something we'll probably use more often…