Flutter concurrency for Swift developers

Asynchronous Programming

Leveraging the main thread/isolate

Leveraging a background thread/isolate

Both Dart and Swift support concurrent programming. 
This guide should help you understand how
concurrency works in Dart and how it compares to Swift.
With this understanding, you can create
high-performing iOS apps.

When developing in the Apple ecosystem, 
some tasks might take a long time to complete. 
These tasks include fetching or processing large amounts of data.
iOS developers typically use Grand Central Dispatch (GCD)
to schedule tasks using a shared thread pool.
With GCD, developers add tasks to dispatch queues
and GCD decides on which thread to execute them.