private string GenerateReportDescription(GeofenceStateChangeReport report)
{
GeofenceState state = report.NewState;
DateTimeOffset timestamp = report.Geoposition.Coordinate.Timestamp;
string result = $"{report.Geofence.Id} {timestamp:G}";
if (state == GeofenceState.Removed)
{
GeofenceRemovalReason reason = report.RemovalReason;
if (reason == GeofenceRemovalReason.Expired)
{
result += " (Removed/Expired)";
}
else if (reason == GeofenceRemovalReason.Used)
{
result += " (Removed/Used)";
}
}
else if (state == GeofenceState.Entered)
{
result += " (Entered)";
}
else if (state == GeofenceState.Exited)
{
result += " (Exited)";
}
return(result);
}
private void GetGeofenceStateChangedReports()
{
GeofenceMonitor monitor = GeofenceMonitor.Current;
Geoposition posLastKnown = monitor.LastKnownGeoposition;
string geofenceItemEvent = null;
// Retrieve a vector of state change reports
var reports = GeofenceMonitor.Current.ReadReports();
foreach (var report in reports)
{
GeofenceState state = report.NewState;
geofenceItemEvent = report.Geofence.Id;
if (state == GeofenceState.Removed)
{
GeofenceRemovalReason reason = report.RemovalReason;
if (reason == GeofenceRemovalReason.Expired)
{
geofenceItemEvent += " (Removed/Expired)";
}
else if (reason == GeofenceRemovalReason.Used)
{
geofenceItemEvent += " (Removed/Used)";
}
}
else if (state == GeofenceState.Entered)
{
geofenceItemEvent += " (Entered)";
}
else if (state == GeofenceState.Exited)
{
geofenceItemEvent += " (Exited)";
}
}
// NOTE: Other notification mechanisms can be used here, such as Badge and/or Tile updates.
DoToast(geofenceItemEvent);
}
private void GetGeofenceStateChangedReports(Geoposition pos)
{
_geofenceBackgroundEvents.Clear();
FillEventCollectionWithExistingEvents();
GeofenceMonitor monitor = GeofenceMonitor.Current;
Geoposition posLastKnown = monitor.LastKnownGeoposition;
Windows.Globalization.Calendar calendar = new Windows.Globalization.Calendar();
Windows.Globalization.DateTimeFormatting.DateTimeFormatter formatterLongTime;
formatterLongTime = new Windows.Globalization.DateTimeFormatting.DateTimeFormatter("{hour.integer}:{minute.integer(2)}:{second.integer(2)}", new[] { "en-US" }, "US", Windows.Globalization.CalendarIdentifiers.Gregorian, Windows.Globalization.ClockIdentifiers.TwentyFourHour);
bool eventOfInterest = true;
// NOTE TO DEVELOPER:
// Registered geofence events can be filtered out if the
// geofence event time is stale.
DateTimeOffset eventDateTime = pos.Coordinate.Timestamp;
calendar.SetToNow();
DateTimeOffset nowDateTime = calendar.GetDateTime();
TimeSpan diffTimeSpan = nowDateTime - eventDateTime;
long deltaInSeconds = diffTimeSpan.Ticks / oneHundredNanosecondsPerSecond;
if (true == eventOfInterest)
{
if ((posLastKnown.Coordinate.Point.Position.Latitude != pos.Coordinate.Point.Position.Latitude) ||
(posLastKnown.Coordinate.Point.Position.Longitude != pos.Coordinate.Point.Position.Longitude))
{
UpdateInforamtion.WipeGeolocDataFromAppData();
}
if (true == eventOfInterest)
{
string geofenceItemEvent = null;
int numEventsOfInterest = 0;
// Retrieve a vector of state change reports
var reports = GeofenceMonitor.Current.ReadReports();
foreach (var report in reports)
{
GeofenceState state = report.NewState;
geofenceItemEvent = report.Geofence.Id + " " + formatterLongTime.Format(eventDateTime);
if (state == GeofenceState.Removed)
{
GeofenceRemovalReason reason = report.RemovalReason;
if (reason == GeofenceRemovalReason.Expired)
{
geofenceItemEvent += " (Removed/Expired)";
}
else if (reason == GeofenceRemovalReason.Used)
{
geofenceItemEvent += " (Removed/Used)";
}
}
else if (state == GeofenceState.Entered)
{
geofenceItemEvent += " (Entered)";
}
else if (state == GeofenceState.Exited)
{
geofenceItemEvent += " (Exited)";
}
AddGeofenceEvent(geofenceItemEvent);
++numEventsOfInterest;
}
if (true == eventOfInterest && 0 != numEventsOfInterest)
{
SaveExistingEvents();
// NOTE: Other notification mechanisms can be used here, such as Badge and/or Tile updates.
DoToast(numEventsOfInterest, geofenceItemEvent);
}
}
}
}
private void GetGeofenceStateChangedReports(Geoposition pos)
{
geofenceBackgroundEvents.Clear();
FillEventCollectionWithExistingEvents();
GeofenceMonitor monitor = GeofenceMonitor.Current;
Geoposition posLastKnown = monitor.LastKnownGeoposition;
Windows.Globalization.Calendar calendar = new Windows.Globalization.Calendar();
Windows.Globalization.DateTimeFormatting.DateTimeFormatter formatterLongTime;
formatterLongTime = new Windows.Globalization.DateTimeFormatting.DateTimeFormatter("{hour.integer}:{minute.integer(2)}:{second.integer(2)}", new[] { "en-US" }, "US", Windows.Globalization.CalendarIdentifiers.Gregorian, Windows.Globalization.ClockIdentifiers.TwentyFourHour);
bool eventOfInterest = true;
// NOTE TO DEVELOPER:
// These events can be filtered out if the
// geofence event time is stale.
DateTimeOffset eventDateTime = pos.Coordinate.Timestamp;
calendar.SetToNow();
DateTimeOffset nowDateTime = calendar.GetDateTime();
TimeSpan diffTimeSpan = nowDateTime - eventDateTime;
long deltaInSeconds = diffTimeSpan.Ticks / oneHundredNanosecondsPerSecond;
// NOTE TO DEVELOPER:
// If the time difference between the geofence event and now is too large
// the eventOfInterest should be set to false.
if (eventOfInterest)
{
// NOTE TO DEVELOPER:
// This event can be filtered out if the
// geofence event location is too far away.
if ((posLastKnown.Coordinate.Point.Position.Latitude != pos.Coordinate.Point.Position.Latitude) ||
(posLastKnown.Coordinate.Point.Position.Longitude != pos.Coordinate.Point.Position.Longitude))
{
// NOTE TO DEVELOPER:
// Use an algorithm like the Haversine formula or Vincenty's formulae to determine
// the distance between the current location (pos.Coordinate)
// and the location of the geofence event (latitudeEvent/longitudeEvent).
// If too far apart set eventOfInterest to false to
// filter the event out.
}
if (eventOfInterest)
{
string geofenceItemEvent = null;
int numEventsOfInterest = 0;
// Retrieve a vector of state change reports
var reports = GeofenceMonitor.Current.ReadReports();
foreach (GeofenceStateChangeReport report in reports)
{
GeofenceState state = report.NewState;
geofenceItemEvent = report.Geofence.Id + " " + formatterLongTime.Format(eventDateTime);
if (state == GeofenceState.Removed)
{
GeofenceRemovalReason reason = report.RemovalReason;
if (reason == GeofenceRemovalReason.Expired)
{
geofenceItemEvent += " (Removed/Expired)";
}
else if (reason == GeofenceRemovalReason.Used)
{
geofenceItemEvent += " (Removed/Used)";
}
}
else if (state == GeofenceState.Entered)
{
geofenceItemEvent += " (Entered)";
}
else if (state == GeofenceState.Exited)
{
geofenceItemEvent += " (Exited)";
}
AddGeofenceEvent(geofenceItemEvent);
++numEventsOfInterest;
}
if (eventOfInterest && (0 != numEventsOfInterest))
{
SaveExistingEvents();
// NOTE: Other notification mechanisms can be used here, such as Badge and/or Tile updates.
DoToast(numEventsOfInterest, geofenceItemEvent);
}
}
}
}
private async Task GetGeofenceStateChangedReports(Geoposition pos)
{
_geofenceBackgroundEvents.Clear();
FillEventCollectionWithExistingEvents();
GeofenceMonitor monitor = GeofenceMonitor.Current;
Geoposition posLastKnown = monitor.LastKnownGeoposition;
Windows.Globalization.Calendar calendar = new Windows.Globalization.Calendar();
Windows.Globalization.DateTimeFormatting.DateTimeFormatter formatterLongTime;
formatterLongTime = new Windows.Globalization.DateTimeFormatting.DateTimeFormatter("{hour.integer}:{minute.integer(2)}:{second.integer(2)}", new[] { "hr-HR" }, "HR", Windows.Globalization.CalendarIdentifiers.Gregorian, Windows.Globalization.ClockIdentifiers.TwentyFourHour);
bool eventOfInterest = true;
// NOTE TO DEVELOPER:
// Registered geofence events can be filtered out if the
// geofence event time is stale.
var eventDateTime = pos.Coordinate.Timestamp;
calendar.SetToNow();
var nowDateTime = calendar.GetDateTime();
var diffTimeSpan = nowDateTime - eventDateTime;
var deltaInSeconds = diffTimeSpan.TotalSeconds;
if (deltaInSeconds > 120)
{
eventOfInterest = false;
}
if (eventOfInterest)
{
// NOTE TO DEVELOPER:
// This event can be filtered out if the
// geofence event location is too far away.
var distance = 0.0d;
if ((posLastKnown.Coordinate.Point.Position.Latitude != pos.Coordinate.Point.Position.Latitude) ||
(posLastKnown.Coordinate.Point.Position.Longitude != pos.Coordinate.Point.Position.Longitude))
{
distance = new HaversineFormula().Distance(posLastKnown.Coordinate.Point.Position, pos.Coordinate.Point.Position, HaversineFormula.DistanceType.Kilometers);
// NOTE TO DEVELOPER:
// Use an algorithm like the Haversine formula or Vincenty's formulae to determine
// the distance between the current location (pos.Coordinate)
// and the location of the geofence event (latitudeEvent/longitudeEvent).
// If too far apart set eventOfInterest to false to
// filter the event out.
}
if (eventOfInterest)
{
string geofenceItemEvent = null;
int numEventsOfInterest = 0;
// Retrieve a vector of state change reports
var reports = GeofenceMonitor.Current.ReadReports();
foreach (var report in reports)
{
GeofenceState state = report.NewState;
geofenceItemEvent = report.Geofence.Id + " " + formatterLongTime.Format(eventDateTime);
if (state == GeofenceState.Removed)
{
GeofenceRemovalReason reason = report.RemovalReason;
if (reason == GeofenceRemovalReason.Expired)
{
geofenceItemEvent += " (Removed/Expired)";
}
else if (reason == GeofenceRemovalReason.Used)
{
geofenceItemEvent += " (Removed/Used)";
}
}
else if (state == GeofenceState.Entered)
{
geofenceItemEvent += " (Entered)";
}
else if (state == GeofenceState.Exited)
{
geofenceItemEvent += " (Exited)";
}
geofenceItemEvent += $" - {deltaInSeconds}";
geofenceItemEvent += $"\nDistance - {distance}";
AddGeofenceEvent(geofenceItemEvent);
++numEventsOfInterest;
var userLocation = new UserLocation()
{
Latitude = report.Geoposition.Coordinate.Point.Position.Latitude,
Longitude = report.Geoposition.Coordinate.Point.Position.Longitude,
Name = report.Geofence.Id,
UpdatedUtc = eventDateTime.UtcDateTime,
Status = (LocationStatus)(int)state
};
await UploadDataToCloud(userLocation);
}
if (eventOfInterest == true && numEventsOfInterest != 0)
{
SaveExistingEvents();
// NOTE: Other notification mechanisms can be used here, such as Badge and/or Tile updates.
//DoToast(numEventsOfInterest, geofenceItemEvent);
}
}
}
}
/// STEP 2B: On geofence notification, read reports
/// Event handler for geofence state changes.
/// </summary>
/// <param name="sender">GeofenceMonitor, which receives the event notifications.</param>
/// <param name="e">Event data that describes how this page was reached. The Parameter
/// property is typically used to configure the page.</param>
public async void OnGeofenceStateChangedHandler(GeofenceMonitor sender, object e)
{
// Get reports for geofences state changes
var reports = sender.ReadReports();
foreach (GeofenceStateChangeReport report in reports)
{
GeofenceState state = report.NewState;
Windows.Devices.Geolocation.Geofencing.Geofence geofence = report.Geofence;
var gasStationItem = await SampleDataSource.GetItemAsync(geofence.Id);
// If we've entered a particular geofence, show message for that geofence's id
if (state == GeofenceState.Entered)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
// Show message for the given geofence enter event
string geofenceEnterMessage = "Approaching " + gasStationItem.Subtitle;
// Post message update
Debug.WriteLine(geofenceEnterMessage);
// Update Fence
updateGasStationFence(report.Geofence.Id, (Geocircle)report.Geofence.Geoshape, Colors.Green);
// Or create a toast to tell the user about the event
SendToast(geofenceEnterMessage);
// Or do stuff under the covers, such as update info, change something in the phone, send message, etc
});
}
// If we've exited a particular geofence, show message for that geofence's id
else if (state == GeofenceState.Exited)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
// Show message for the given geofence exit event
string geofenceExitMessage = "Departing " + gasStationItem.Subtitle;
// Post message update
Debug.WriteLine(geofenceExitMessage);
// Draw Fence
updateGasStationFence(report.Geofence.Id, (Geocircle)report.Geofence.Geoshape, Colors.Red);
// Or create a toast to tell the user about the event
//SendToast(geofenceExitMessage);
// Or do stuff under the covers, such as check out, change something in the phone, send message, etc
});
}
else if (state == GeofenceState.Removed)
{
GeofenceRemovalReason reason = report.RemovalReason;
string eventDescription = "Geofence Removed: ";
if (reason == GeofenceRemovalReason.Expired)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
eventDescription += " (Removed/Expired)";
Debug.WriteLine(eventDescription + geofence.Id);
});
}
else if (reason == GeofenceRemovalReason.Used)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
eventDescription += " (Removed/Used)";
Debug.WriteLine(eventDescription + geofence.Id);
});
}
}
}
}
