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iOS 12 Programming for Beginners

iOS 12 Programming for Beginners

By : Craig Clayton
2.5 (6)
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iOS 12 Programming for Beginners

iOS 12 Programming for Beginners

2.5 (6)
By: Craig Clayton

Overview of this book

Want to build iOS 12 applications from scratch with the latest Swift 4.2 language and Xcode 10 by your side? Forget sifting through tutorials and blog posts; this book is a direct route to iOS development, taking you through the basics and showing you how to put principles into practice. Take advantage of this developer-friendly guide and start building applications that may just take the App Store by storm! If you’re already an experienced programmer, you can jump right in and learn the latest iOS 12 features. For beginners, this book starts by introducing you to iOS development as you learn Xcode and Swift. You'll also study advanced iOS design topics, such as gestures and animations, to give your app the edge. You’ll explore the latest Swift 4.2 and iOS 12 developments by incorporating new features, such as the latest in notifications, custom-UI notifications, maps, and the recent additions in Sirikit. The book will guide you in using TestFlight to quickly get to grips with everything you need to get your project on the App Store. By the end of this book, you'll be ready to start building your own cool iOS applications confidently.
Table of Contents (27 chapters)
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1
Getting Familiar with Xcode

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. We will then repeat this 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 that if you are submitting this to the store that you put in the appropriate verbiage. The user, as well as Apple, sees this verbiage. Let's build and run the project...

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