CODEWITHSUNDEEP
c#xamarin.formsmvvm
Phuluso Ramulifho
Phuluso Ramulifho

Reputation: 498

How to get elapsed timed in Xamarin forms

I want my timer to continue from the time I started it until now, I need help with the logic that uses timespan to calculate the elapsed time from the minutes the timer started to the current time, Here is what I have done:

CancellationTokenSource cts = _cancellationTokenSource; // safe copy

       
          //Timer Starts here
         _TimeSpan = TimeSpan.FromMinutes(TimeSheet.TotalTime);
      

       //Increment timer by a second interval
        Device.StartTimer(TimeSpan.FromSeconds(1), () => {

            if (cts.IsCancellationRequested)
            {
                return false;
            }
            else
            {
                Device.BeginInvokeOnMainThread(() => {

                     _TimeSpan += TimeSpan.FromSeconds(1);

                    displaytime = _TimeSpan.ToString(@"h\:m\:s");
                    TimeSheet.TotalTimeForDisplay = displaytime;

                    Console.WriteLine("Timer");
                    Console.WriteLine(displaytime);

                });

                return true;

            }

Upvotes: 0

Views: 416

Answers (1)

Jason
Jason

Reputation: 89204

use System.Timers.Timer

// use whatever start time you need
DateTime start = DateTime.Now;

// 1000ms = 1s
System.Timers.Timer timer = new System.Timers.Timer(1000);

timer.Elapsed += OnTimedEvent;

timer.Start();

then

private static void OnTimedEvent(Object source, ElapsedEventArgs e)
{
    var elapsed = DateTime.Now - start;
}

Upvotes: 1

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