4.2 Understand Grand Central Dispatch
In these LiveLessons, Jiva DeVoe covers the advanced features of the Objective-C language. Viewers will learn how to use blocks, use categories to extend the capabilities of... - Selection from Objective-C Advanced Programming LiveLessons (Video Training) [Video]
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Key Details About 4 2 Understand Grand Central Dispatch Objective C Advanced
In Objective-C , we use dispatch_once to ensure that a piece of code (usually an object initialization) happens exactly once in the lifecycle of the app, even if multiple threads call the method at the same time.
Thankfully, Apple introduced a technology called Grand Central Dispatch (GCD) in Mac OS X 10.6 and brought it over to iOS devices in iOS 4 . GCD dramatically simplifies multithreaded programming because it takes care of all the complicated heavy lifting. Along with GCD, Apple added a new language feature to C : blocks.
Useful Notes on 4 2 Understand Grand Central Dispatch Objective C Advanced
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Grand Central Dispatch (GCD) In iOS, Apple provides two ways to do multitasking: The Grand Central Dispatch (GCD) and NSOperationQueue frameworks.We will discuss here about GCD. GCD is a lightweight way to represent units of work that are going to be executed concurrently You don't schedule these units of work; the system takes care of scheduling for you. Adding dependency among blocks can ...
Using GCD and Blocks Effectively in Objective
With the introduction of Grand Central Dispatch (GCD) and blocks, Apple provided powerful tools to simplify and optimize concurrent programming on iOS and macOS platforms. This article explores how to leverage GCD and blocks in Objective-C to enhance application responsiveness and efficiency. Why Should I Care About GCD?
Overview Dispatch , also known as Grand Central Dispatch (GCD), contains language features, runtime libraries, and system enhancements that provide systemic, comprehensive improvements to the support for concurrent code execution on multicore hardware in macOS, iOS, watchOS, and tvOS.
Introducing Blocks and Grand Central Dispatch
Grand Central Dispatch (GCD) comprises language features, runtime libraries, and system enhancements that provide systemic, comprehensive improvements to the support for concurrent code execution o...
Course Outline In the Advanced section viewers will learn how to use blocks, use categories to extend the capabilities of existing classes, use keyvalue coding and keyvalue observing, use threading to harness the power of multiprocessor and multicore machines, understand design patterns e commonly used in Objective-C , and how to serialize and deserialize objects to property lists and to JSON ...