iOS Programming: The Big Nerd Ranch Guide

Responding to User Changes

When the user changes the preferred text size, a notification gets posted that the application’s objects can register to listen for. This is the UIContentSizeCategoryDidChangeNotification, and this is a great time to update the user interface.

In BNRDetailViewController.m, register for this notification in initForNewItem: and remove the class as an observer in dealloc.

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