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

Getting permission 


Apple requires that, if we use the camera or access the camera roll, we must let the user know that we are doing so and why. If you fail to do this, your code regarding the camera will not work and your app will be rejected when you submit it. Let's take care of this now.

Open the Info.plist file and add the following two keys by hovering over any key and hitting the plus icon for the first key and then repeating for the second key:

  • - NSPhotoLibraryUsageDescription
  • - NSCameraUsageDescription

For each key's value, enter anything you want as an alert that the user will see. In the following example, the value is set as The app uses your camera to take pictures:

Please make sure if you are submitting this to the store that you put in the appropriate verbiage. This verbiage is seen by the user as well as Apple. Let's build and run the project by hitting the Play button (or using cmd + R). You should now be able to get a photo from the photo library or use the camera.

Once you have...