Developing for Apple TV using tvOS and Swift

Gary Bennett, Brad Lees, and Stefan Kaczmarek, the staff behind Swift 2 for Absolute Beginners, brings you a hands-on “Swift” creation to the hot tvOS SDK with a set of app tasks to attempt out.
You’ll how you can create a book place app for the television, together with utilizing Stack perspectives for booklet information, how you can create a photograph gallery app, and the way to exploit assortment view and cut up view controllers with a song assortment app. ultimately, you’ll additionally easy methods to shop Apple television app info in iCloud.
The new Apple television is right here, and it’s open in your local apps ― Developing for the Apple television with tvOS and Swift gets you began constructing correct away.
What you'll learn:
  • How to exploit stack perspectives in tvOS
  • How to take advantage of assortment perspectives and break up view controllers
  • How to shop Apple television app info in iCloud
  • How to create local apps for books, images, and song at the Apple TV
Who this e-book is for:
Intermediate iOS builders who are looking to create local Apple television apps utilizing the recent tvOS SDK.

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As soon as performed, your AppDelegate. quick dossier may still seem like the only proven in determine 8-11. determine 8-11. entire AppDelegate Run your app and spot if the checklist was once effectively kept. it may be. Open the Console log in Xcode to ensure the observe “Done. ” in the event you do see an mistakes within the log, it's most probably the person might want to log into iCloud at the equipment. Now that you've got stored this publication, you must paintings on getting all the e-book files from the cloud. you are going to retrieve the cloud details within the ViewController. fast. click on ViewController. fast. upload the import CloudKit line on the best of the dossier like we did within the AppDelegate. quick dossier. within the viewDidLoad procedure, upload the subsequent code to the ground of the tactic: 20         let myPredicate: NSPredicate = NSPredicate(value: actual) 21         let myQuery: CKQuery = CKQuery(recordType: "Books", predicate: myPredicate) 22 23         CKContainer. defaultContainer(). publicCloudDatabase. performQuery(myQuery, inZoneWithID: nil) { 24             results, blunders in 25             if errors ! = nil { 26                 print("Error") 27                 print(error. debugDescription) 28             } else { 29                 print(results) 30             } 31         } Line 20 creates an NSPredicate, that is used to create a seek question. NSPredicates also are used with middle information. they're a robust approach to question. The NSPredicate in basic terms queries the files the place value=true, and this can be the way you question all the documents. precise is often real, so this can create an NSPredicate to come all the files. Line 21 creates a CKQuery by means of passing within the list variety and the NSPredicate you created within the past line. A CKQuery may also have an NSSortDescriptor. this lets you type the information you're retrieving again from CloudKit. Line 23 tells the general public database to accomplish the question. it's attainable to segregate your documents into various zones. that's past the scope of this publication, so the following simply ship in nil to the area identifier parameter. strains 24 to 33 are the block how to be accomplished as soon as the question is entire. now you can money to work out if there's an errors. If anything failed, it is going to then exhibit the mistake within the log. If there's no errors, you could print the documents you acquired into the log. as soon as whole, your code should still appear like that proven in determine 8-12. determine 8-12. accomplished viewDidLoad in the event you now run this app because it stands, you'll obtain an mistakes. you currently have to visit the CloudKit Dashboard situated at https://icloud. developer. apple. com/dashboard/ . One the left-hand facet, click on list kinds, then Books, as proven in determine 8-13. The variety of public files will swap counting on the variety of instances you have got run the app. determine 8-13. opting for Books list style you'll now see a monitor just like that proven in determine 8-14. determine 8-14. Books info click on the downward arrow beneath Metadata Indexes and cost the field subsequent to list identification, as proven in determine 8-15. this permits your program to entry those metadata as a part of a question.

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