Book Image

Mastering iOS 12 Programming - Third Edition

By : Donny Wals
Book Image

Mastering iOS 12 Programming - Third Edition

By: Donny Wals

Overview of this book

The iOS development environment has significantly matured, and with Apple users spending more money in the App Store, there are plenty of development opportunities for professional iOS developers. However, the journey to mastering iOS development and the new features of iOS 12 is not straightforward. This book will help you make that transition smoothly and easily. With the help of Swift 4.2, you’ll not only learn how to program for iOS 12, but also how to write efficient, readable, and maintainable Swift code that maintains industry best practices. Mastering iOS 12 Programming will help you build real-world applications and reflect the real-world development flow. You will also find a mix of thorough background information and practical examples, teaching you how to start implementing your newly gained knowledge. By the end of this book, you will have got to grips with building iOS applications that harness advanced techniques and make best use of the latest and greatest features available in iOS 12.
Table of Contents (35 chapters)
Title Page
Copyright and Credits
Packt Upsell

Implementing user interactions for the collection view

In the previous chapter, you saw how to implement several interactions with a table view by implementing several of its delegate methods. Any time the user interacts with a cell, the table view calls a delegate method to see what exactly should happen as a response to this interaction. Collection views have incredibly similar capabilities, except for a few details. For instance, implementing reordering on a collection view requires a little bit more work than it does for a table view, as you will see shortly. Also, collection view cells cannot be swiped on to reveal actions to, for instance, delete a cell like you can with a table view cell. Similar functionality can be added to collection views though, and this section will show you exactly how.

You will learn how to implement the following interactions:

  • Cell selection
  • Cell deletion
  • Cell reordering

Cell selection is the simplest feature to implement. The delegate method for this is called...