/// <summary>
/// Executes everytime the page appears.
/// Changes the app state and starts the update timer.
/// </summary>
protected override async void OnAppearing()
{
base.OnAppearing();
if (KCApi.Properties.State != KCProperties.AppState.Accept)
{
KCApi.Properties.State = KCProperties.AppState.Accept;
Timer(null, null);
if (KCApi.Properties.NetState == KCProperties.NetworkState.Disconnected)
{
lock (KCApi.Properties.StateLock)
KCApi.Properties.State = KCProperties.AppState.Transitioning;
await Navigation.PopAsync();
return;
}
KCApi.Properties.CurrentPosition = await KCApi.GetCurrentPosition();
// Location is not set
if (KCApi.Properties.CurrentPosition.Latitude == 0 && KCApi.Properties.CurrentPosition.Longitude == 0)
{
var text = "GPS signal lost. Please reenable or reenter service.";
Toast.MakeText(CrossCurrentActivity.Current.Activity, text, ToastLength.Short).Show();
}
// Driver is no longer authenticated. Send back to sign in
else if (!Driver_Id.authenticated)
{
var text = "Authentication Failure";
Toast.MakeText(CrossCurrentActivity.Current.Activity, text, ToastLength.Short).Show();
lock (KCApi.Properties.StateLock)
KCApi.Properties.State = KCProperties.AppState.Transitioning;
await Navigation.PopAsync();
}
// Driver has entered the Accept screen for the first time since logging in as CurrentRide is null
else if (KCApi.Properties.RideStatus != KCProperties.RideStatuses.Active && KCApi.Properties.CurrentRide == null)
{
Ride ride = new Ride();
if (KCApi.RecoveryCheck(ride) && KCApi.SetRideLocation(ride))
{
ride.SetDisplayAddress(KCApi.GetAddressFromPosition(new Position(ride.ClientLat, ride.ClientLong)));
KCApi.Start(ride);
lock (KCApi.Properties.StateLock)
KCApi.Properties.State = KCProperties.AppState.Transitioning;
await Navigation.PushAsync(new MapPage());
}
}
updater.Start();
}
}
/// <summary>
/// Function to start map and get ride location.
/// </summary>
/// <param name="sender">Event sender.</param>
/// <param name="e">Event args.</param>
public void Button_Clicked(object sender, EventArgs e)
{
if (KCApi.Properties.State == KCProperties.AppState.Accept)
{
lock (buttonLock)
{
StatusColor.IsEnabled = false;
Ride ride = new Ride();
KCApi.Properties.CurrentPosition = Task.Run(async() => await KCApi.GetCurrentPosition()).Result;
if (KCApi.Properties.CurrentPosition.Latitude == 0 && KCApi.Properties.CurrentPosition.Longitude == 0)
{
var text = "GPS signal lost. Please reenable or reenter service.";
Toast.MakeText(CrossCurrentActivity.Current.Activity, text, ToastLength.Short).Show();
}
else if (KCApi.Properties.RideStatus != KCProperties.RideStatuses.Active && KCApi.AcceptNextRide(ride) &&
KCApi.SetRideLocation(ride, KCApi.Properties.CurrentPosition.Latitude, KCApi.Properties.CurrentPosition.Longitude))
{
lock (KCApi.Properties.StateLock)
{
KCApi.Properties.State = KCProperties.AppState.Transitioning;
//Start takes only a position, which will come from the database
ride.SetDisplayAddress(KCApi.GetAddressFromPosition(new Position(ride.ClientLat, ride.ClientLong)));
KCApi.Start(ride);
Navigation.PushAsync(new MapPage());
}
}
else if (!Driver_Id.authenticated)
{
var text = "Authentication Failure";
Toast.MakeText(CrossCurrentActivity.Current.Activity, text, ToastLength.Short).Show();
if (KCApi.Properties.State == KCProperties.AppState.Accept)
{
lock (KCApi.Properties.StateLock)
{
KCApi.Properties.State = KCProperties.AppState.Transitioning;
Navigation.PopAsync();
}
}
}
else if (Status.Text == "No available rides")
{
var text = "No available rides.";
Toast.MakeText(CrossCurrentActivity.Current.Activity, text, ToastLength.Short).Show();
}
else
{
var text = "Accept ride failed.";
Toast.MakeText(CrossCurrentActivity.Current.Activity, text, ToastLength.Short).Show();
}
StatusColor.IsEnabled = true;
}
}
}
/// <summary>
/// Updates the address text when the ride is updated.
/// </summary>
public async void UpdateText()
{
if (KCApi.Properties.State == KCProperties.AppState.Map)
{
await Task.Run(() =>
{
while (KCApi.Properties.CurrentRide == null)
{
;
}
KCApi.Properties.CurrentRide.SetDisplayAddress(KCApi.GetAddressFromPosition(new Position(KCApi.Properties.CurrentRide.ClientLat,
KCApi.Properties.CurrentRide.ClientLong)));
Device.BeginInvokeOnMainThread(() =>
{
RiderCardText.Text = KCApi.Properties.CurrentRide.ClientName + ": " + KCApi.Properties.CurrentRide.DisplayAddress;
});
});
}
}