How to do multithreading, concurrency or parallelism in iOS Swift?

Question

Is there any way to create a worker thread in Swift?, for example, if there\'s a major functionality that requires a lot of calculations and hence causes the main thread to dela

Answer 1

This library lets you describe concurrency in a super expressive way:

func handleError(_ error) { ... }

HoneyBee.start(on: DispatchQueue.main) { root in
    root.setErrorHandler(handleError)
        .chain(function1) // runs on main queue
        .setBlockPerformer(DispatchQueue.global())
        .chain(function2) // runs on background queue
        .branch { stem in
            stem.chain(func3) // runs in parallel with func4
            +
            stem.chain(func4) // runs in parallel with func3
        }
        .chain(func5) // runs after func3 and func4 have finished
        .setBlockPerformer(DispatchQueue.main)
        .chain(updateUIFunc)
}