/// <summary>
/// New page
/// </summary>
public PageStart()
{
/// Text message to indicate current status
textMessage.TextColor = Color.White;
textMessage.Text = "[Start]\nWaiting for GPS signal..";
/// Content view of this page
Content = new StackLayout()
{
VerticalOptions = LayoutOptions.Center,
Children =
{
textMessage,
}
};
if (locator == null)
{
try
{
/// <summary>
/// Create Locator instance, sets LocationType to GPS
/// </summary>
/// <param name="Hybrid">This method selects the best method available at the moment.</param>
/// <param name="Gps">This method uses Global Positioning System.</param>
/// <param name="Wps">This method uses WiFi Positioning System.</param>
/// <param name="Passive">This method uses passive mode.</param>
locator = new Locator(LocationType.Gps);
/// Create GpsSatellite instance
satellite = new GpsSatellite(locator);
if (locator != null)
{
/// Starts the Locator which has been created using the specified method.
locator.Start();
/// Add ServiceStateChanged event to receive the event regarding service state
locator.ServiceStateChanged += LocatorServiceStateChanged;
}
}
catch (Exception ex)
{
/// Exception handling
textMessage.Text = "[Start] Exception \n" + ex.Message;
}
}
}
/// <summary>
/// Button event to start location service
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">EventArgs</param>
private void ButtonStartClicked(object sender, EventArgs e)
{
if (locator == null)
{
try
{
/// <summary>
/// Create Locator instance, sets LocationType to GPS
/// </summary>
/// <param name="Hybrid">This method selects the best method available at the moment.</param>
/// <param name="Gps">This method uses Global Positioning System.</param>
/// <param name="Wps">This method uses WiFi Positioning System.</param>
/// <param name="Passive">This method uses passive mode.</param>
locator = new Locator(LocationType.Gps);
/// Create GpsSatellite instance
satellite = new GpsSatellite(locator);
if (locator != null)
{
/// Starts the Locator which has been created using the specified method.
locator.Start();
textStatus.Text = "[Status] Start location service, GPS searching ...";
/// Add ServiceStateChanged event to receive the event regarding service state
locator.ServiceStateChanged += Locator_ServiceStateChanged;
/// Disable start button to avoid duplicated call.
buttonStart.IsEnabled = false;
// Enable available buttons
buttonSatellite.IsEnabled = true;
buttonStop.IsEnabled = true;
}
else
{
/// Locator creation failed
textStatus.Text = "[Status] Location initialize .. Failed";
}
}
catch (Exception ex)
{
/// Exception handling
textStatus.Text = "[Status] Location Initialize : " + ex.Message;
}
}
}
public void OnGpsStatusChanged(GpsEvent e)
{
GpsStatus gpsStatus = locationManager.GetGpsStatus(null);
if (gpsStatus != null)
{
IIterable satellites = gpsStatus.Satellites;
IIterator sat = satellites.Iterator();
string lSatellites = null;
int i = 0;
while (sat.HasNext)
{
GpsSatellite satellite = sat.Next().JavaCast <GpsSatellite>();
Debug.WriteLine(satellite.Prn);
}
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
// Get our button from the layout resource,
// and attach an event to it
Button button = FindViewById <Button>(Resource.Id.MyButton);
locationManager = (LocationManager)GetSystemService(Context.LocationService);
locationManager.AddGpsStatusListener(this);
locationManager.RequestLocationUpdates(LocationManager.GpsProvider, 0, 0, this);
GpsStatus gpsStatus = locationManager.GetGpsStatus(null);
if (gpsStatus != null)
{
IIterable satellites = gpsStatus.Satellites;
IIterator sat = satellites.Iterator();
string lSatellites = null;
int i = 0;
while (sat.HasNext)
{
GpsSatellite satellite = sat.Next().JavaCast <GpsSatellite>();
Debug.WriteLine(satellite.Prn);
}
}
button.Click += delegate
{
button.Text = string.Format("{0} clicks!", count++);
};
}
internal GpsNavMessage(GpsSatellite satellitePrn, DateTime dt, [NotNull] double[] clkData,
[NotNull] double[] orbitParameters)
: base(dt, clkData, orbitParameters)
{
SatellitePrn = satellitePrn;
}
