static AwarenessFence CreateLocationFence()
{
return(AwarenessFence.Or(
LocationFence.Entering(0, 0, 1000),
LocationFence.Exiting(0, 0, 1000),
LocationFence.In(0, 0, 1000, 100)
));
}
private async Task RequestLocationSnapshotAsync()
{
if (await CrossPermissions.Current.CheckPermissionStatusAsync(Permission.Location) == PermissionStatus.Granted)
{
// store current location
ILocationResult locationResult = await Awareness.SnapshotApi.GetLocationAsync(AwarenessApiClient);
global::Android.Locations.Location location = locationResult.Location;
DateTimeOffset timestamp = new DateTimeOffset(1970, 1, 1, 0, 0, 0, new TimeSpan()).AddMilliseconds(location.Time);
await StoreDatumAsync(new LocationDatum(timestamp, location.HasAccuracy ? location.Accuracy : -1, location.Latitude, location.Longitude));
// replace the previous location fence with one around the current location. additions and removals are handled
// in the order specified below.
FenceUpdateRequestBuilder locationFenceRequestBuilder = new FenceUpdateRequestBuilder();
UpdateRequestBuilder(null, AWARENESS_EXITING_LOCATION_FENCE_KEY, FenceUpdateAction.Remove, ref locationFenceRequestBuilder);
AwarenessFence locationFence = LocationFence.Exiting(location.Latitude, location.Longitude, _locationChangeRadiusMeters);
UpdateRequestBuilder(locationFence, AWARENESS_EXITING_LOCATION_FENCE_KEY, FenceUpdateAction.Add, ref locationFenceRequestBuilder);
await UpdateFencesAsync(locationFenceRequestBuilder.Build());
}
}