private void ActivateNextWaypoint()
{
_distanceWalkedMiles += GetLastWayPoint().Distance(NextWaypoint);
VisitedWaypoints.Add(RouteEnumerator.Current);
if (!RouteEnumerator.MoveNext())
{
OnNavigationFinished();
}
NextWaypoint = RouteEnumerator.Current;
}
public async Task <bool> StartNavigation()
{
var locationPermission = DependencyService.Get <ILocationPermission>();
var permissionGranted = await locationPermission.CheckAndAsk();
GeoPosition position = null;
try
{
position = (await _geoLocator.GetPositionAsync()).ToGeoPosition();
} catch (GeolocationException e)
{
var properties = new Dictionary <string, string>
{
{ "Permission status", permissionGranted.ToString() }
};
Crashes.TrackError(e, properties);
return(false);
}
if (_route.GetSectionForPosition(position) == RouteExtensions.DefaultSection)
{
Application.Current.MainPage = new NotNearRoutePage();
return(false);
}
NextWaypoint = _route.FindClosestWaypoint(position);
VisitedWaypoints = new List <RoutePoint> {
NextWaypoint
};
var section = _route.GetSectionForPosition(NextWaypoint);
NavigationDirection = _route.DetermineLongestDirectionInSection(NextWaypoint, section);
RouteEnumerator = _route.GetEnumerable(NextWaypoint, NavigationDirection).GetEnumerator();
RouteEnumerator.MoveNext();
ActivateNextWaypoint();
InitializeMap(position);
await StartListeningToLocationAsync();
return(true);
}