C# Threading/Async: Running a task in the background while UI is interactable

Question

After looking around on both Async/Await and Threading, I\'m still unsure of the right way to apply it to my situation. No matter the variation that I try my UI still hangs

Answer 1

You did misunderstand.

public static Task myFunction()
{
    //Stuff Happens

    while(StaticClass.stopFlag == false)
        //Do Stuff

    //Stuff Happens

    return Task.FromResult(1) //I know this is bad, part of the reason I'm asking
}

All of that code still happens in the intial await StaticClass.MyFunction(); call, it never returns control to the caller. What you need to do is put the loop portion in to a separate thread.

public static async Task myFunction()
{
    //Stuff Happens on the original UI thread

    await Task.Run(() => //This code runs on a new thread, control is returned to the caller on the UI thread.
    {
        while(StaticClass.stopFlag == false)
            //Do Stuff
    });

    //Stuff Happens on the original UI thread after the loop exits.
}