CODEWITHSUNDEEP
c#androidxamarintimer
controleng
controleng

Reputation: 5

how stop timer task.delay in xamarin android

my android app running slow.Operation like Navigation, is particularly very slow.i used timer by below codes.now i want stop timer when i click button ?how do it

void ChangedData()
{
    Task.Delay(500).ContinueWith(t =>
    {
        ChangedData();
    }, TaskScheduler.FromCurrentSynchronizationContext());

}

Upvotes: 0

Views: 1068

Answers (2)

lowleetak
lowleetak

Reputation: 1382

Create a CancellationTokenSource somewhere in your code.

var _cts = new System.Threading.CancellationTokenSource();

Then call Task.Delay with CancellationToken pass in the method.

Task.Delay(500, _cts.Token)

To cancel the task, just call Cancel method of the CancellationTokenSource

_cts.Cancel();

When the task is cancelled, it will throw TaskCanceledException. Please remember to catch the exception.

try
{
    Task.Delay(500, _cts.Token).ContinueWith(t =>
        {

            ChangedData();

        }, TaskScheduler.FromCurrentSynchronizationContext());
}
catch (TaskCanceledException ex)
{
    // Handle when task is cancelled.
}

Upvotes: 0

Jason
Jason

Reputation: 89082

using System.Timers;

Timer timer = new Timer(500);
timer.Elapsed += (sender, e) => { ChangedData(); };
timer.Start();

// to stop the Timer
timer.Stop();

Upvotes: 1

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