public HomePage()
{
App.Current.Resources["PositionOrigin"] = new Point(0.5, 0.5);
this.InitializeComponent();
Map.MapServiceToken = Constants.MapServiceToken;
var messenger = Mvx.Resolve <IMvxMessenger>();
UserInfo.Tapped += (sender, args) =>
{
Debug.WriteLine("position tapped");
args.Handled = true;
};
_locationToken = messenger.Subscribe <LocationMessage>(async message =>
{
if (!message.IsError)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
var geoPoint = new Geopoint(new BasicGeoposition {
Latitude = message.Lat, Longitude = message.Lng
});
await InitializeUserPositionIfNeeded(geoPoint, message.Accuracy);
var vals = GeoHelper.CalculatePolygon(message.Lat, message.Lng, message.Accuracy ?? 0).Select(p => p.ToNative().Position);
_accuracyPolygon.Path = new Geopath(vals);
});
}
});
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
_locationTracker = Mvx.Resolve <ILocationTrackerService>();
_locationTracker.Subscribe();
var messenger = Mvx.Resolve <IMvxMessenger>();
_locationToken = messenger.Subscribe <LocationMessage>(message =>
{
if (!message.IsError)
{
var coords = new GeoCoordinate(message.Lat, message.Lng)
{
HorizontalAccuracy = message.Accuracy ?? 0
};
InitializeUserPositionIfNeeded(coords);
ShowLocation(coords);
AddressPushPin.Content = message.Address;
AddressPushPin.GeoCoordinate = coords;
if (message.Accuracy.HasValue)
{
var coordinates = GeoHelper.CalculatePolygon(coords.Latitude, coords.Longitude, coords.HorizontalAccuracy).Select(c => c.ToNative());
var geoCoordsCollection = new GeoCoordinateCollection();
foreach (var coord in coordinates)
{
geoCoordsCollection.Add(coord);
}
_mapPolygon.Path = geoCoordsCollection;
}
}
});
}