Beginning Xcode: Swift 3 Edition by Matthew Knott

By Matthew Knott

This booklet won't in simple terms get you up and operating with Apple's most recent model of Xcode, however it additionally exhibits you ways to exploit quick in Xcode and incorporates a number of initiatives to build.

If you have already got a few programming adventure with iOS SDK and Objective-C, yet need a extra in-depth instructional on Xcode, specially Xcode with Apple’s new programming language, speedy, then Beginning Xcode, fast version is for you.

The publication makes a speciality of the hot applied sciences, instruments and contours that Apple has bundled into the recent Xcode eight, to enrich the newest iOS 10. via the tip of this booklet, you will have the entire abilities and numerous examples to draft from to get your fast app from notion to App shop with all of the strength of Xcode.

What You’ll learn

  • How to exploit rapid and new Swift-related good points in Xcode
  • How to start with Xcode, utilizing Workspaces, Interface Builder, storyboarding, tables/collection perspectives and more
  • How to exploit Xcode's titanic libraries, frameworks and bundles
  • How to create intriguing interactive apps for iPhone or iPad utilizing Sprite package, Map equipment, and different Apple technologies
  • How to proportion your app utilizing organizer, localization, automobile structure, and more

Who this booklet is for

This ebook is for people with a few Objective-C/Cocoa and/or iOS SDK app improvement adventure, yet are looking to be extra effective in writing and trying out their code, and those that need to know in-depth examples of speedy in Xcode.

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Extra resources for Beginning Xcode: Swift 3 Edition

Example text

31 CHAPTER 2 ■ DIVING RIGHT IN 3. If you right-click the HelloWorld project in the Project Navigator and select Show in Finder, you can explore the actual file structure behind your project. Note that there is no sign of a folder called Backgrounds, because Xcode organizes the files while leaving the underlying file structure intact. You’ve done the hard work of adding the file to Xcode. Now let’s do the fun part—adding the image to the View Controller using the Storyboard. storyboard from the Project Navigator.

This part of Xcode is called the Project Navigator. If you’re unable to find it, choose View ➤ Navigators ➤ Show Project Navigator ( + 1). It’s important to note that when you create a folder in the Project Navigator, it doesn’t correspond to the structure in which the files are saved in the Finder. The folders and organization of the Project Navigator are purely to help you locate files in Xcode. If you create a folder in the Navigator, the same folder isn’t present in your project when you browse in Finder.

Ensuring that the image view is still selected, click the Pin button at the bottom of the design area. This time, all four values should say 0; if they don’t, ensure you have not checked Constrain to Margins. If the values still don’t say 0, change them manually and then click all four bars, as shown in Figure 2-24. Click the Add 4 Constraints button. Figure 2-24. Applying constraints to the image view 33 CHAPTER 2 ■ DIVING RIGHT IN So you’re finished, right? Not quite. With the image view filling all the available space, you can’t see the label you added at the start of the project!

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