By Molly Maskrey, Kim Topley, David Mark, Fredrik Olsson, JEFF LAMARCHE
Create your personal apps for the newest iOS units. you are going to commence with the fundamentals, after which paintings your approach during the technique of downloading and fitting Xcode and the iOS 10 SDK, after which publications you even though the production of your first basic application.
Assuming very little operating wisdom of the speedy programming language, and written in a pleasant, easy-to-follow style, Beginning iPhone improvement with speedy 3 offers a entire direction in iPhone and iPad programming. during this 3rd variation of the best-selling booklet, you’ll easy methods to combine all of the interface components iOS clients have come to understand and love, comparable to buttons, switches, pickers, toolbars, and sliders.
Every unmarried pattern app within the ebook has been rebuilt from scratch utilizing the most recent Xcode and the most recent iOS 10-specific venture templates, and designed to exploit the newest Xcode beneficial properties. realize brand-new applied sciences, in addition to major updates to present instruments. You’ll grasp quite a few layout styles, from the best unmarried view to complicated hierarchical drill-downs. The artwork of desk development may be demystified, and you’ll the way to shop your facts utilizing the iOS dossier procedure. You’ll additionally how you can keep and retrieve your information utilizing numerous patience recommendations, together with center info and SQLite. And there’s a lot more!
What you'll Learn
Anyone who desires to begin constructing for iPhone and iPad.
Read Online or Download Beginning iPhone Development with Swift Exploring the iOS SDK PDF
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Extra info for Beginning iPhone Development with Swift Exploring the iOS SDK
56 CHAPTER 3: Handling Basic Interaction Understanding Outlets and Actions In Chapter 2, you used Xcode’s Interface Builder to design a simple user interface. A moment ago, you saw the shell of a view controller class. There must be some way for the code in this view controller class to interact with the objects in the storyboard, right? Absolutely! A controller class can refer to objects in a storyboard or nib file by using a special kind of property called an outlet. Think of an outlet as a pointer that points to an object within the user interface.
As we said earlier, this is deliberate—Apple wants you to design on an abstract square view as much as possible and have your screen layouts adapt to the screens that they meet at runtime. So how do we fix this? Back in iOS 6, Apple added a technology called Auto Layout, which lets you add constraints to the views in your design that express how they should change position and/or size to adapt to the space that’s actually available on screen. You’ll see how to use Interface Builder to configure Auto Layout constraints starting in the next chapter, but for now, let’s take a simpler approach—we’ll change the square view that we’re using as the basis for our design into one that looks more like the iPhone simulator that we’re actually running the application on.
This is Xcode’s Interface Builder (sometimes referred to as IB), which is where you’ll design your application’s user interface. 31 32 CHAPTER 2: Appeasing the Tiki Gods Figure 2-16. storyboard in the Project Navigator. This opened the file in Interface Builder. It looks like this Interface Builder has a long history. It has been around since 1988 and has been used to develop applications for NeXTSTEP, OpenStep, OS X, and now iOS devices such as the iPhone and the iPad. As we noted earlier, Interface Builder used to be a separate application that was installed along with Xcode and worked in tandem with it.