iOS Persistence and Core Data

Simple Persistence

Learn about simple persistence and how to save small pieces of data, like user preference, using NSUserDefaults.

iOS File System and Sandboxing

Learn about the iOS File System, the “sandbox”, and how to access these files using NSFileManager.

Introducing Core Data

Explore what a data layer is, and how to convert a non-Core Data app to have a Core Data model.

The Core Data Stack

Set up the classes we need to get Core Data up and running so that we can create, save, and delete model objects.

Simpler Code with Core Data

Enable user interfaces to reactively update whenever the model changes.

Rounding Out Core Data

Safely migrate user data between versions, and move slow work to the background.