// Functions
public ExercisePage()
{
// Setup
InitializeComponent();
_taskFactory = new TaskFactory(TaskScheduler.FromCurrentSynchronizationContext());
_viewModel = new RunningExerciseViewModel(_taskFactory);
this.DataContext = _viewModel;
// Add GPS service if is first use
if (_locationService == null)
{
_locationService = new GPSService(GPS_ACCURACY.HIGH, 20);
}
// Add handlers
_locationService.GPSLocationChanged += GPSLocationChanged;
_locationService.GPSLocationChanged += _viewModel.GPSLocationChanged;
// Turn on GPS
_locationService.StartService();
// Set timer for updating running time
_runUpdater = new DispatcherTimer();
_runUpdater.Interval = TimeSpan.FromSeconds(1);
_timerTick = (Object sender, EventArgs args) => { _viewModel.UpdateRunningTime(); };
_runUpdater.Tick += _timerTick;
_runUpdater.Start();
}
