More iPhone Development with Swift: Exploring the iOS SDK by Jeff LaMarche, David Mark, Jayant Varma, Alex Horovitz,

By Jeff LaMarche, David Mark, Jayant Varma, Alex Horovitz, Kevin Kim

Drawn to iPhone and iPad apps improvement? are looking to examine extra? even if you're a relative newcomer to iPhone and iPad or iOS improvement or an previous hand seeking to extend your horizons, we've got the correct Swift-flavored booklet for you.

The replace to the bestselling extra iPhone improvement by means of Dave Mark and Jeff LaMarche, extra iPhone improvement with quick digs deeper into the recent Apple speedy programming language and iOS eight SDK, explaining complicated thoughts and methods within the comparable pleasant, easy-to-follow type you’ve come to expect.

More iPhone improvement with rapid covers issues like speedy, center facts, peer-to-peer networking utilizing Multipeer Connectivity, operating with facts from the net, MapKit, in-application electronic mail, digital camera Live-Previews integration, Barcode scanning, Face acceptance and extra. all of the strategies and APIs are sincerely provided with code snippets you could customise and use, as you're keen on, on your personal apps. You’ll trip via assurance of concurrent programming and a few complicated options for debugging your purposes.

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Designing the View Controller Interface Your application’s root view controller is now a stock UINavigationController. You didn’t need to write any code for it; you just dropped a navigation controller object into your storyboard. Xcode also gave you a UITableViewController as the root of the navigation controller’s stack. Even though you will be using a table to display the list of heroes, you’re not going to subclass UITableViewController. Because you also need to add a tab bar to your interface, you’re going to create a subclass of UIViewController and create your interface in the storyboard editor.

As a result, every managed object context needs to be provided with a pointer to a persistent store coordinator in order to function. Multiple managed object contexts can work against the same persistent store coordinator, however. Saves On Terminate While you’re in the application delegate, scroll up to another method called applicationWillTerminate which saves changes to the context if any have been made. The changes are saved to the persistent store. As its name implies, this method is called just before the application exits.

Probably not. You’ll look at dealing with situations like that in the next few chapters. Load Data from the Persistent Store Run the Core Data application you built earlier and press the plus button a few times (see Figure 2-6). Quit the simulator, and then run the application again. Note that the timestamps from your previous runs were saved into the persistent store and loaded back in for this run. swift so you can see how this happens. As you can probably guess from the filename, MasterViewController is the view controller class that acts as your application’s, well, master view controller.

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