Book Image

Learn iOS 11 Programming with Swift 4 - Second Edition

By : Craig Clayton
Book Image

Learn iOS 11 Programming with Swift 4 - Second Edition

By: Craig Clayton

Overview of this book

<p>You want to build iOS applications but where do you start? Forget sifting through tutorials and blog posts, this book is a direct route into iOS development, taking you through the basics and showing you how to put the principles into practice. So take advantage of this developer-friendly guide and start building applications that may just take the App Store by storm!</p> <p>Whether you're an experienced programmer or a complete novice, this book guides you through every facet of iOS development. From Xcode and Swift, the building blocks of modern iOS development, you'll quickly gain a solid foundation to begin venturing deeper into your development journey. Experienced programmers can jump right in and learn the latest iOS 11 features.</p> <p>You'll also learn advanced topics of iOS design, such as gestures and animations, to give your app the edge. Explore the latest developments in Swift 4 and iOS 11 by incorporating new features, custom-rich notifications, drag and drop features, and the latest developments in SiriKit. With further guidance on beta testing with TestFlight, you'll quickly learn everything you need to get your project on the App Store!</p>
Table of Contents (36 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Free Chapter
1
Getting Familiar with Xcode
Index

Adding locations to our Table View


We now have our Table View displaying data, but we need it to display a list of actual locations. Let's update our Table View to show our list of locations:

  1. Directly under the tableView variable, add the following:
let locations = ["Aspen", "Boston", "Charleston", "Chicago", "Houston", "Las Vegas", "Los Angeles", "Miami", "New Orleans", "New York", "Philadelphia", "Portland", "San Antonio", "San Francisco", "Washington District of Columbia"]
  1. Your file should now look like mine:
  1. Next, to update our cell to display the locations, we need to replace the cell.textLabel?.text = "A cell" line with the following:
cell.textLabel?.text = locations[indexPath.item]

Let's build and run the project by hitting the Play button (or using cmd + R). You should see the following after clicking Select a location in your simulator:

However, there are a couple of problems. If we add another location to the array, it crashes because we are manually setting the value. Also, we are just...