Alfian Losari • 5/25/2019

Using Dispatch Group & Semaphore to Group Async Tasks

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This technical article explains how to use Apple's Grand Central Dispatch (GCD) framework, specifically DispatchGroup and DispatchSemaphore, to group and control concurrent asynchronous tasks in iOS. It covers practical use cases like managing multiple network requests or background downloads, and includes a step-by-step guide for a sample project that simulates simultaneous downloads with configurable concurrency limits.

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#concurrency #Io #Dispatchgroup
Using Dispatch Group & Semaphore to Group Async Tasks

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