The schemes that the NSURL class is able to parse.
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An object that represents the location of a resource, such as an item on a remote server or the path to a local file.
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The response length cannot be determined in advance of receiving the data from the server.
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The URL Loading System received bad data from the server.
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A response to a connection request couldn’t be parsed.
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Response codes identifying the button that was pressed to dismiss a notification dialog.
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An object that parses URLs into and constructs URLs from their constituent parts.
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An object that enables you to start and stop URL requests.
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An object that downloads a resource asynchronously and saves the data to a file.
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An object that accesses and manages resource data indicated by a URL.
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A URL load request that is independent of protocol or URL scheme.
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The maximum number of frequency response bin structures for the property.
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The maximum number of frequency response bin structures for the AudioUnitProperty_FrequencyResponse property.
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Keys for retrieving text response information.
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A protocol that URL download delegates implement to interact with a URL download request.
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Finite impulse response filters
Perform finite impulse response filtering with decimation and antialiasing on vectors of real or complex values.
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NSError userInfo Dictionary Keys
Keys in the userInfo dictionary of an NSError object when certain NSURL methods return an error.
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Processing the JSON Web Encryption (JWE) login response
Validate the encrypted response.
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Error codes to expect when an iCloud-related error occurs.
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Create bookmark data to access file-system resources in a sandboxed app.
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Accessing Files and Directories
Explains how to create and manage files and directories.
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Explains how to use the Cocoa defaults system to create and save user preferences.
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Accessing WebKit From Carbon Applications
Explains how to use the WebKit to embed web content in both Cocoa and Carbon applications.
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Alternative Design Considerations
Explains how to create document-based applications using the Cocoa document architecture on OS X.
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App Programming Guide for tvOS: Creating a Client-Server App
Describes how to write applications for tvOS.
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Explains how to use Core Audio frameworks and the Core Audio SDK to create audio units.
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Explains how to use Core Foundation networking functions to work with low-level BSD sockets.
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Explains how to use attributed strings, which manage attributes of character strings or individual characters.
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Contains, in alphabetical order, descriptions of design patterns, architectures, and other concepts important in Cocoa development.
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Communicating with HTTP Servers
Explains how to use Core Foundation networking functions to work with low-level BSD sockets.
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Copy, Cut, and Paste Operations
Describes the technologies and techniques for displaying and managing text and web content in iOS.
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Creating and Using Image Sources
Explains how to read and write image data using the Image I/O framework.
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Designing for Real-World Networks
Explains basic networking concepts and terminology, and provides an overview of networking APIs.
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Explains how to implement drag and drop in Cocoa.
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iCloud Fundamentals (Key-Value and Document Storage)
Describes how to incorporate iCloud into your app.
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Managing the Life Cycle of a Document
Describes how to create an iOS application whose documents are integrated with iCloud storage.
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A collection of short articles on the core concepts, patterns, and mechanisms in Cocoa programming.
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Explains how to create and manage files and directories.
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Describes the APIs and techniques for drawing and printing on iOS.
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Showing Records in the Contacts App
Explains how to add, search, remove, and customize Address Book records.
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Explains how to use the WebKit to embed web content in both Cocoa and Carbon applications.
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Supporting IPv6 DNS64/NAT64 Networks
Explains basic networking concepts and terminology, and provides an overview of networking APIs.
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Using Asset and Location Fields
Describes how to use APIs and tools to create a CloudKit app.
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Describes the framework you use to play, inspect, create, edit, capture, and transcode media assets.
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Using and Creating Error Objects
Describes NSError objects, related Application Kit support for error handling, and how to use these features in your code.
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32:44
Verify identity documents on the web
Learn how Digital Credentials can enhance online identity verification flows. We'll cover how websites can integrate the Digital Credentials API to...
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103:37
Code along with the Foundation Models framework
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21:56
Discover how Swift OpenAPI Generator can help you work with HTTP server APIs whether you're extending an iOS app or writing a server in Swift. We'll...
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25:54
Explore more content with MusicKit
Discover how you can enhance and personalize your app using MusicKit. We'll take you through the latest additions to the MusicKit framework and...
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19:25
Discover Sign in with Apple at Work & School
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47:35
What's new with in-app purchase
Learn how you can make your in-app purchase experience even better on iPhone, iPad, Mac, and Apple Watch. We'll take you through enhancements to...
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18:26
Meet Apple Music API and MusicKit
Explore the Apple Music API and MusicKit client frameworks. Learn how you can integrate Apple Music features into your web service or Android app,...
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36:22
What’s new in Wallet and Apple Pay
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15:31
Improve MDM assignment of Apps and Books
Discover the Apps and Books Management API and explore how you can assign an organization's owned apps and books to managed users and devices. Learn...
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33:57
Analyze HTTP traffic in Instruments