protected override void OnAppearing()
{
Device.BeginInvokeOnMainThread(async() =>
{
if (_geolocator.IsGeolocationEnabled)
{
_position = await _geolocator.GetLastKnownLocationAsync();
if (_position == null)
{
_position = await _geolocator.GetPositionAsync();
}
var formsMapPosition = new Xamarin.Forms.Maps.Position(_position.Latitude, _position.Longitude);
var mapSpan = MapSpan.FromCenterAndRadius(formsMapPosition, Distance.FromKilometers(1));
_map.MoveToRegion(mapSpan);
MyPositionPin = new Pin
{
Address = "Mi ubicación",
Position = formsMapPosition,
Type = PinType.Generic,
Label = "Mi ubicación"
};
_map.Pins.Add(MyPositionPin);
}
else
{
await DisplayAlert("Un momento", "Debes activar tu GPS para usar la aplicación.", "OK");
}
});
}
public static async Task <Position> GetCurrentPosition()
{
IGeolocator locator = CrossGeolocator.Current;
locator.DesiredAccuracy = Constants.MapDesiredAccuracy;
Position position = await locator.GetLastKnownLocationAsync();
if (position != null)
{
return(position);
}
if (!locator.IsGeolocationAvailable || !locator.IsGeolocationEnabled)
{
return(null);
}
position = await locator.GetPositionAsync(TimeSpan.FromSeconds(Constants.TimeOutSmall), null, true);
if (position == null)
{
return(null);
}
return(position);
}
public async void Listen()
{
position = null;
CurrentState = State.Unknown;
if (locator.IsListening)
{
await locator.StopListeningAsync();
}
if (!locator.IsGeolocationEnabled ||
!locator.IsGeolocationAvailable ||
!await locator.StartListeningAsync(TimeSpan.FromSeconds(10), 100))
{
CurrentState = State.Error;
}
#if DEBUG // For emulators
else
{
Position _position = await locator.GetLastKnownLocationAsync();
if (position == null && _position != null)
{
position = _position;
CurrentState = State.Success;
}
}
#endif
}
protected override void OnAppearing()
{
Device.BeginInvokeOnMainThread(async() =>
{
if (_geolocator.IsGeolocationEnabled)
{
_position = await _geolocator.GetLastKnownLocationAsync();
if (_position == null)
{
_position = await _geolocator.GetPositionAsync();
}
var formsMapPosition = new Xamarin.Forms.Maps.Position(_position.Latitude, _position.Longitude);
var mapSpan = MapSpan.FromCenterAndRadius(formsMapPosition, Distance.FromKilometers(1.5));
_map.MoveToRegion(mapSpan);
Incidents = await AdaptatonEndpoint.Instance.GetIncidents();
foreach (var incident in Incidents)
{
_map.Pins.Add(new Pin
{
Position = new Xamarin.Forms.Maps.Position((double)incident.Latitude,
(double)incident.Longitude),
Label = incident.Id
});
}
}
else
{
await DisplayAlert("Un momento", "Debes activar tu GPS para usar la aplicación.", "OK");
}
});
}
private void Start <T>(T sender)
{
IGeolocator locator = CrossGeolocator.Current;
locator.DesiredAccuracy = 50; // <- 1. 50mの精度に指定
var location = locator.GetLastKnownLocationAsync();
location.Wait();
var result = location.Result;
}
public async void RecupererPosition()
{
Position position = null;
try
{
IGeolocator localisation = CrossGeolocator.Current;
localisation.DesiredAccuracy = 100;
position = await localisation.GetLastKnownLocationAsync();
if (position != null)
{
Latitude = position.Latitude;
Longitude = position.Longitude;
IEnumerable <Address> addresses = await localisation.GetAddressesForPositionAsync(position, null);
Address address = addresses.FirstOrDefault();
Adresse = address.Thoroughfare + ", " + address.PostalCode + " " + address.Locality;
}
else
{
if (!localisation.IsGeolocationAvailable || !localisation.IsGeolocationEnabled)
{
Console.WriteLine("Erreur !");
return;
}
else
{
position = await localisation.GetPositionAsync(TimeSpan.FromSeconds(20), null, true);
if (position != null)
{
Latitude = position.Latitude;
Longitude = position.Longitude;
IEnumerable <Address> addresses = await localisation.GetAddressesForPositionAsync(position, null);
Address address = addresses.FirstOrDefault();
Adresse = address.Thoroughfare + ", " + address.PostalCode + " " + address.Locality;
}
else
{
Latitude = 0;
Longitude = 0;
Adresse = "Inconnu";
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Impossible de récupérer la location: " + ex);
}
}
private void Start()
{
IGeolocator locator = CrossGeolocator.Current;
locator.DesiredAccuracy = 50; // <- 1. 50mの精度に指定
var location = locator.GetLastKnownLocationAsync();
location.Wait();
var result = location.Result;
Text += $"緯度:{result.Latitude} 経度:{result.Longitude}{Environment.NewLine}";
//MessagingCenter.Send(this, "Start");
}
public Task <Position> GetLastKnownLocationAsync()
{
return(bestGeolocator.GetLastKnownLocationAsync());
}