Back button missing on iPhone detail views

Make sure to give parent view controllers a page title. If you don’t, any child view controllers pushed onto the view stack will have missing back button titles, and missing back buttons!:

The navigation will still work- tap the left-most corner, and you’ll be taken back to the Root view. In this example, I set the view title before display in RootViewController.m:

Checking the navigation again:

Not intuitive, but an easy fix.