private void OnAltitudeEvent(GpsAltitudeProvider provider, AltitudeEvent e)
{
try {
if (lastKnownLocation != null)
{
var loc = lastKnownLocation;
lastKnownLocation = new SimpleLocation(true, e.location.Altitude, loc.longitude, loc.latitude);
}
else
{
lastKnownLocation = new SimpleLocation(true, e.location.Altitude, e.location.Longitude, e.location.Latitude);
}
} catch (Exception ex) {
Log.E(this, "Failed to resolve altitude event", ex);
}
}
/// <summary>
/// Initializes the IIONManager to the given IION.
/// </summary>
/// <returns>The async.</returns>
public async Task <InitializationResult> InitAsync()
{
if (Permission.Granted == ContextCompat.CheckSelfPermission(ion.context, Android.Manifest.Permission.AccessFineLocation))
{
altitudeProvider = new GpsAltitudeProvider(ion.context.GetSystemService(Context.LocationService) as LocationManager);
if (IsGooglePlayServicesInstalled())
{
client = InitGooglePlayServices();
client.Connect();
var start = DateTime.Now;
while (client.IsConnecting && !client.IsConnected)
{
if (DateTime.Now - start > TimeSpan.FromSeconds(5))
{
Log.E(this, "Failed to connect to google play services: we are shutting them down and running on backup");
client.Disconnect();
client = null;
break;
}
await Task.Delay(50);
}
}
StartAutomaticLocationPolling();
}
else
{
Log.E(this, "The user denied the location permission. We will not allow the location to update.");
ion.appPrefs._location.allowsGps = false;
}
ion.appPrefs.prefs.RegisterOnSharedPreferenceChangeListener(this);
return(new InitializationResult()
{
success = true,
});
}