Saving Data in iOS Apps - Core Data and Realm [Video]

More Information
  • What CoreData is
  • How to create data schemes and save them in CoreData.
  • How to retrieve data from the database.
  • Present pollen data in a visually appealing way to the user.
  • Allow users to delete objects from their to-do list.
  • How to install Realm and get it into your project.
  • The basics of CocoaPods.
  • The similarities and differences between CoreData and Realm.

Apps that don't save any data are no fun. A grocery list app that doesn't save the user's list is useless. A game that doesn't save a user's high score has no challenge. In this course, you will learn how to save data in iOS in two important ways, with CoreData and with Realm.

Core Data is a data-saving framework built by Apple. If you want a job as an iOS developer it is essential that you have this skill on your tool-belt. Core Data allows you to save whole objects into a datastore of your choice (though more often than not you will use a database). Then you can retrieve these data objects when you want. To learn this skill you will create a to-do list app.

The next way to save data is using a tool called Realm. Realm is an open source, a third-party database that is much simpler to set up than CoreData. We will cover the pros and cons of using Realm and how it can make your applications better.

Style and Approach

This video is a step-by-step guide to helping the audience get started with iOS application development by providing a solid foundation in the core iOS concepts, techniques, and the Swift programming language. With every part of the course packed with practical examples, you'll understand how iOS development works, the latest features of iOS 11, and when and where to apply the core iOS techniques.

  • Save data into an iOS app that can be retrieved later.
  • Create a fully functional to-do list application.
  • Learn how to install Realm and use it for your data needs.
Course Length 2 hours 4 minutes
ISBN 9781788299442
Date Of Publication 31 Jan 2018


Nick Walter

Nick Walter is an iOS developer who has been focused on mobile app design and creation for over ive5 years. His involvement in the iOS community started off with a bang, and in 2013 he was one of the 25 students worldwide to be invited to Apple's Cocoa Camp. Within the community, he is also co-president of an Apple developer group called Cocoa Heads.

He always wanted to transform brand-new ideas into reality, but growing up in a small town he had limited access to the required programming resources. This led to his early interest in online education. After experimenting with various companies, learning styles, and teaching processes, he adopted the best strategies and applied them while creating his courses.

Since the announcement of the new Swift programming language by Apple, he has devoted himself to Apple's documentation and any online resource that was available. Prior to teaching the internet's first course on Swift, he created five iOS apps from scratch that are currently live in the App Store and are being used by thousands of users worldwide