private void StartTimer()
{
var dispatchSourceTimer = new DispatchSource.Timer(DispatchQueue.MainQueue);
var delay = 2 * NanosecondsInSecond;
var leeway = 5 * NanosecondsInSecond;
dispatchSourceTimer.SetTimer(DispatchTime.Now, delay, leeway);
dispatchSourceTimer.SetRegistrationHandler(() => PrintResult("Timer registered"));
dispatchSourceTimer.SetEventHandler(() => PrintResult("Timer tick"));
dispatchSourceTimer.SetCancelHandler(() => PrintResult("Timer stopped"));
dispatchSource = dispatchSourceTimer;
dispatchSource.Resume();
}
public override async void ViewDidLoad()
{
base.ViewDidLoad();
// Perform any additional setup after loading the view, typically from a nib.
await CheckAndRequestPermissionAsync(new Permissions.LocationAlways());
_timer = new DispatchSource.Timer(DispatchQueue.GetGlobalQueue(DispatchQueuePriority.Background));
_timer.SetEventHandler(async() =>
{
var location = await Geolocation.GetLocationAsync(new GeolocationRequest()
{
Timeout = TimeSpan.FromSeconds(5),
DesiredAccuracy = GeolocationAccuracy.Best
});
System.Diagnostics.Debug.WriteLine($"{location?.Latitude}, {location?.Longitude}, {DateTime.Now}");
});
}
public DispatchTimer(long delay, DispatchQueue queue, TimerHandler block)
{
this.timerBlock = block;
this.queue = queue;
this.delay = delay;
this.source = new DispatchSource.Timer(queue);
base.Init();
Action wrapper = () =>
{
if (!source.IsCanceled)
{
source.Cancel();
timerBlock(this);
}
};
wrappedBlock = wrapper;
}
