Download Beginning iPhone Development with Swift 3. Exploring the iOS by Molly K. Maskrey PDF

By Molly K. Maskrey

ISBN-10: 1484222229

ISBN-13: 9781484222225

Assuming very little operating wisdom of the quick programming language, and written in a pleasant, easy-to-follow sort, this ebook deals a entire direction in iPhone and iPad programming. The publication starts off with the fundamentals, strolling in the course of the means of downloading and fitting Xcode and the iOS 10 SDK, after which courses you even though the production of your first easy software. during this 3rd version of the simplest promoting e-book, you’ll easy methods to combine the entire interface parts iOS clients have come to understand and love, akin to buttons, switches, pickers, toolbars, and sliders. You’ll grasp numerous layout styles, from the best unmarried view to complicated hierarchical drill-downs. The paintings of desk development can be demystified, and you’ll find out how to retailer your information utilizing the iOS dossier process. You’ll additionally find out how to shop and retrieve your info utilizing numerous endurance innovations, together with middle info and SQLite. And there’s even more!

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Beginning iPhone Development with Swift 3. Exploring the iOS SDK

Assuming very little operating wisdom of the fast programming language, and written in a pleasant, easy-to-follow variety, this booklet deals a entire path in iPhone and iPad programming. The publication begins with the fundamentals, jogging during the means of downloading and fitting Xcode and the iOS 10 SDK, after which courses you notwithstanding the production of your first basic program.

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With a single click, the jump bar allows you to jump to a specific element in the hierarchy you are currently navigating. For example, Figure 2-16 shows a source file being edited in the editor pane. Figure 2-16. The Xcode editor pane showing the jump bar, with a source code file selected. The submenu shows the list of methods in the selected file 27 CHAPTER 2 ■ WRITING OUR FIRST APP The jump bar sits just above the source code. Here’s how it breaks down: • The funky-looking icon at the left end of the jump bar is actually a pop-up menu that displays submenus listing recent files, counterparts, superclasses, and subclasses, siblings, categories, includes, and more.

Otherwise, you’ll just see a generic iOS Device entry. Below that, you’ll see a whole section, headed by iOS Simulator, listing all the kinds of devices that can be used with the iOS simulator. From that lower section, choose iPhone 6/6s, so that our app will run in the simulator, configured as if it were an iPhone 6/6s. There are several ways to launch your application: you can select Product ➤ Run, press R, or press the Run button that’s just to the left of the simulator pop-up menu. Xcode will compile your app and launch it in the iOS simulator (see Figure 2-22).

Note that your keyboard may not have a key that’s marked ||. If it doesn’t, use the Option key instead. Change the label’s appearance any way you like, feeling free to play around with the font, size, and color of the text. Note that if you change the font size, you’ll need to add an auto layout constraint to make sure that it has the correct size at run time. To do that, select the label, and then choose Editor ➤ Size to Fit Content from the Xcode menu (see Figure 2-24). Once you’ve finished playing, save the file and select Run again.

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