What approaches or libraries have you used for implementing multithreading in your projects?

To implement multithreading in iOS projects, I used several approaches:

• Grand Central Dispatch (GCD) — the main tool for managing task queues. It allows executing code asynchronously on a background thread or synchronously on the main thread.

• OperationQueue and Operation — a higher-level API that enables creating operations with dependencies and managing their execution.

Example of using GCD to perform a task on a background thread:

DispatchQueue.global(qos: .background).async {
    // Background task
    print("Running in background")
    DispatchQueue.main.async {
        // UI update on the main thread
        print("Updating UI")
    }
}

These tools allow efficient load distribution and prevent blocking the user interface.