By Dave Mark, Jack Nutting, Fredrik Olsson, Jeff LaMarce
The staff that introduced you the bestselling starting iPhone improvement is again back for starting iOS 7 improvement, bringing this definitive consultant up to date with Apple's most up-to-date and maximum iOS 7 SDK, in addition to with the most recent model of Xcode.
There’s assurance of brand-new applied sciences, together with a brand new bankruptcy on Apple's Sprite equipment framework for online game improvement, in addition to major updates to current fabric. You'll have every little thing you must create your own apps for the most recent iOS units. each pattern app within the booklet has been rebuilt from scratch utilizing most modern Xcode and the most recent 64-bit iOS 7-specific undertaking templates, and designed to exploit the most recent Xcode features.
Assuming just a minimum operating wisdom of Objective-C, and written in a pleasant, easy-to-follow sort, starting iOS 7 improvement bargains an entire soup-to-nuts path in iPhone, iPad, and iPod contact programming. The booklet starts off with the fundamentals, strolling during the means of downloading and fitting Xcode and the iOS 7 SDK, after which publications you although the construction of your first uncomplicated application.
From there, you’ll tips on how to combine the entire interface parts iOS clients have come to grasp and love, comparable to buttons, switches, pickers, toolbars, and sliders. You’ll grasp a number of layout styles, from the best unmarried view to advanced hierarchical drill-downs. The complicated paintings of desk development might be demystified, and you’ll find out how to retailer your facts utilizing the iPhone dossier method. You’ll additionally how to shop and retrieve your facts utilizing various endurance suggestions, together with center facts and SQLite. And there’s even more!
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Extra info for Beginning iOS 7 Development: Exploring the iOS SDK
The items shown in the asset catalog hint at this with their 2x labels, but those are really just labels. To figure out what size an item really expects, select one of them and press ƃY4 to open the attributes inspector on the right side of the window. This will show you both the size (again in points) and the scale, which for each of these icons is 2x. Multiply the size by the scale, and you’ll get the actual pixel size that’s required. Check each of the items in the AppIcon box, and the inspector will give you the details.
Any code we place in that action method will be executed when the user taps the button. Select View ° Utilities ° Show Object Library or press ^ƃ 3 to open the object library. Type UIButton into the object library’s search box (you actually need to type only the first four characters, UIBu, to narrow down the list). Once you’re finished typing, only one item should appear in the object library: Button (see Figure 3-5). Figure 3-5. The Button as it appears in the object library CHAPTER 3: Handling Basic Interaction 55 Drag Button from the library and drop it on the white window inside the editing area.
First Responder is, in very basic terms, the object with which the user is currently interacting. If, for example, the user is currently entering data into a text field, that field is the current first responder. The first responder changes as the user interacts with the user interface, and the First Responder icon gives you a convenient way to communicate with whatever control or other object is the current first responder, without needing to write code to determine which control or view that might be.
Beginning iOS 7 Development: Exploring the iOS SDK by Dave Mark, Jack Nutting, Fredrik Olsson, Jeff LaMarce