/// <summary>
/// Load location data from the server.
/// Also intialize the application bar with the loaded data.
/// </summary>
private async Task LoadUIData()
{
//Change the header depending on the mode.
bool isResolved = NavigationContext.QueryString[MODE_KEY].Equals(RESOLVED_REQUESTS);
if (isResolved)
LocationPivot.Header = AppResources.Map_PastSOSHeader;
else
LocationPivot.Header = AppResources.Map_UnresolvedSOSHeader;
ApplicationBar.IsVisible = false;
CancellationToken tk = App.ShowProgressOverlay(AppResources.Map_LoadingLocation);
string message = "";
try
{
myLocationPushpin = await LoadUserLocation();
if (myLocationPushpin == null)
MessageBox.Show(AppResources.Map_CannotObtainLocation);
else
LocationMapLayer.Add(myLocationPushpin.pushpinLayer);//Add the user's location to the maplayer.
LocationList<Pushpin> sosLocations = await LoadSOSLocations(isResolved, tk, myLocationPushpin.position);
List<LocationList<Pushpin>> longList = ViewModels.LocationList<Pushpin>.GroupByTime(sosLocations, 24);
LocationList.ItemsSource = longList;
//Add the last location to the maplayer.
if (sosLocations.Count > 0)
{
AddNewPushpin(sosLocations.First());
lastPushpin = sosLocations.First();
}
ApplicationBar.IsVisible = true;
}
catch (OperationCanceledException)
{
Debug.WriteLine("Loading UI Canceled.");
}
catch (Exception e)
{
Debug.WriteLine(e.ToString());
message = AppResources.Map_LoadingFailed;
NavigationService.GoBack();
}
App.HideProgressOverlay();
if (!message.Equals(""))
MessageBox.Show(message);
}
/// <summary>
/// Load location data from the server.
/// Also intialize the application bar with the loaded data.
/// </summary>
private async Task LoadUIData()
{
ApplicationBar.IsVisible = false;
CancellationToken tk = App.ShowProgressOverlay(AppResources.Map_LoadingLocation);
string message = "";
try
{
myLocationPushpin = await LoadUserLocation();
if (myLocationPushpin == null)
MessageBox.Show(AppResources.Map_CannotObtainLocation);
else
LocationMapLayer.Add(myLocationPushpin.pushpinLayer);//Add the user's location to the maplayer.
LocationList<Pushpin> lastLocations = await LoadLastLocations(tk, myLocationPushpin.position);
LocationList<Pushpin> sosLocations = await LoadSOSLocations(tk, myLocationPushpin.position);
List<LocationList<Pushpin>> longList = new List<LocationList<Pushpin>>();
longList.Add(sosLocations);
longList.AddRange(ViewModels.LocationList<Pushpin>.GroupByTime(lastLocations, 24));
LocationList.ItemsSource = longList;
//Add the last location to the maplayer.
if (lastLocations.Count > 0)
{
AddNewPushpin(lastLocations.First());
lastPushpin = lastLocations.First();
}
else if (sosLocations.Count > 0)
{
AddNewPushpin(sosLocations.First());
lastPushpin = sosLocations.First();
}
ApplicationBar.IsVisible = true;
}
catch (OperationCanceledException)
{
Debug.WriteLine("loading canceled");
}
catch (Exception e)
{
Debug.WriteLine(e.ToString());
message = AppResources.Map_LoadingFailed;
}
App.HideProgressOverlay();
if (!message.Equals(""))
MessageBox.Show(message);
}
/// <summary>
/// Listener for selecting items in the list.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void LocationList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
// If selected item is null (no selection) do nothing
if (LocationList.SelectedItem == null)
return;
MapPivot.SelectedIndex = 1;//Go to the map page.
Pushpin p = LocationList.SelectedItem as Pushpin; //Get the selected request
LocationMapLayer.Remove(lastPushpin.pushpinLayer); //Remove the last pushpin from the map.
AddNewPushpin(p); //Add the new one.
lastPushpin = p; //Save the current one in lastPushpin
// Reset selected item to null (no selection)
LocationList.SelectedItem = null;
}
/// <summary>
/// Add a pushpin to the map and zoom to the position.
/// </summary>
/// <param name="p">the pushpin to be added</param>
private void AddNewPushpin(Pushpin p)
{
LocationMap.SetView(p.position.Location, LocationMap.ZoomLevel, MapAnimationKind.Parabolic);
LocationMapLayer.Add(p.pushpinLayer);
}
private void LocationList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
// If selected item is null (no selection) do nothing
if (LocationList.SelectedItem == null)
return;
MapPivot.SelectedIndex = 1;
Pushpin p = LocationList.SelectedItem as Pushpin;
LocationMapLayer.Remove(lastPushpin.pushpinLayer);
AddNewPushpin(p);
lastPushpin = p;
// Reset selected item to null (no selection)
LocationList.SelectedItem = null;
}