Kas on võimalik samaaegselt töötada mitme sündmuste töötlemise tsükliga ühes rakenduses?

In iOS applications, a single main event loop (run loop) is typically used to manage user interface events and system events. However, technically, it is possible to create and run multiple event loops in different threads, for example, for processing background tasks.

It is important to understand that the main run loop should be singular and run on the main thread, as it is responsible for updating the UI. Additional run loops can be used in worker threads for processing tasks, timers, or event sources.

Example of creating and starting a run loop in a background thread:

let thread = Thread {
    let runLoop = RunLoop.current
    runLoop.add(Port(), forMode: .default)
    runLoop.run()
}
thread.start()

This way, multiple event loops can operate simultaneously, but the main loop must be singular, and additional ones should be in separate threads for specific tasks.