Swift code also produces software that runs lightning-fast. Your music, TV shows, movies, podcasts, and audiobooks will transfer automatically to the Apple Music, Apple TV, Apple Podcasts, and Apple Books apps where you’ll still have access to your favorite iTunes features, including purchases, rentals, and imports. AirDrop makes it easier to share and connect. Download the latest macOS for an allnew entertainment experience. StandBy delivers a new full-screen experience with glanceable information designed to view from a distance when you turn iPhone on its side while charging. Swift’s syntax is concise, safe by design, and has modern features that make your code more expressive. iOS 17 brings big updates to Phone, Messages, and FaceTime that give you new ways to express yourself as you communicate. Use the Swift programming language to write your code. If your app manages larger amounts of structured data, Core Data and CloudKit offer object-oriented models for managing and persisting your data. For any custom types you define, adopt Swift’s Codable support to persist those types to disk. Swift Standard Library and Foundation framework provide structural types such as arrays and dictionaries, and value types for strings, numbers, dates, and other common data values. SwiftUI works seamlessly with Apple’s data management technologies to support the creation of your interfaces. For information about how to use Xcode, view Xcode documentation. SwiftUI’s declarative programming model reduces the complexity of your code and the work it takes to manage your interface on different sizes of Apple Watch. For new watchOS apps, use SwiftUI to build your app’s UI and infrastructure. To create a new project in Xcode, choose File > New > Project and follow the prompts. Both apps ship together on the App Store on iOS. For example, a fitness app on watchOS might collect workout data, and display and analyze that data on iOS. A companion watchOS app runs entirely on Apple Watch, but it matches or complements the features of your iOS app. Open an existing iOS project to add a companion watchOS app to it.
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