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Swift Cookbook

You're reading from   Swift Cookbook Over 50 hands-on recipes to help you create apps, solve problems, and build your portfolio of projects in Swift

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Product type Paperback
Published in Apr 2015
Publisher
ISBN-13 9781784391379
Length 392 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (13) Chapters Close

Preface 1. Getting Started with Xcode and Swift FREE CHAPTER 2. Standard Library and Collections 3. Using Structs and Generics 4. Design Patterns with Swift 5. Multitasking 6. Playground 7. Swift Debugging with Xcode 8. Integrating with Objective-C 9. Dealing with Other Languages 10. Data Access 11. Miscellaneous Index

Printing your object description


The idea of this recipe is to see the Swift way to create a string using variable values. In Objective-C, we have a class method called stringWithFormat, but this method isn't used in Swift with the same frequency as it is used in Objective-C because now we have interpolation. In this example, we will create an app, which will show to the user three possible products. When the user chooses one of them, the app must show the information of this product and also its price if it's available.

How to do it...

  1. Create a new single view project called Chapter2 Product Value. Now, let's click on the storyboard and add three buttons, as shown here:

  2. Once you've done this, you can add a new swift file called Product. Now, we will create a class with a product name, its price, and the manufacturer name.

    In this case, the only information that can be omitted is the product price; the other attributes are not optional. This means that we will need an initializer with at least...

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