How can I implement async cancellation in Xamarin.Forms?

How can I implement async cancellation in Xamarin.Forms?

You can implement async cancellation in Xamarin.Forms using the CancellationTokenSource class. This allows you to cancel ongoing tasks.

Can you show me a code example?

Sure! Here's a simple example:

CancellationTokenSource cts = new CancellationTokenSource();

async Task LoadDataAsync(CancellationToken token)
{
    // Simulate a long-running task
    for (int i = 0; i < 10; i++)
    {
        token.ThrowIfCancellationRequested();
        await Task.Delay(1000); // Simulate work
    }
}

// To cancel:
cts.Cancel();

What happens if I don't check for cancellation?

If you don't check for cancellation, your task will continue running even after a cancellation request, which can lead to unresponsive UI or wasted resources.