However, when I add layers from a MobileMapPackage, it doesn't want to fire properly at all.
Are you removing the layer from the MobileMapPackage.Map before adding to your MapView.Map? It might be that you are getting "Object already owned" error and the layer from mobile map package is never added to the map?
If you would like to know the state for each layer added, you can use LayerViewStateChanged, it also has Error property that you can check.
You can try the following code which reports status from both events. Load button will add layers from mobile map package. I assume, this is what you're trying to do?
xmlns:esri="http://schemas.esri.com/arcgis/runtime/2013">
<Grid>
<esri:MapView x:Name="MyMapView"
DrawStatusChanged="MyMapView_DrawStatusChanged"
LayerViewStateChanged="MyMapView_LayerViewStateChanged">
<esri:Map>
<esri:ArcGISMapImageLayer Source="http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer" />
</esri:Map>
</esri:MapView>
<StackPanel VerticalAlignment="Top"
HorizontalAlignment="Right">
<Button Content="Load"
Click="Button_Click" />
<ListView x:Name="Status" />
</StackPanel>
</Grid>
public MainWindow()
{
InitializeComponent();
Status.ItemsSource = _status;
}
private ObservableCollection<string> _status = new ObservableCollection<string>();
private void MyMapView_DrawStatusChanged(object sender, Esri.ArcGISRuntime.UI.DrawStatusChangedEventArgs e)
{
_status.Add($"MyMapView_DrawStatusChanged:\t{e.Status}");
}
private void MyMapView_LayerViewStateChanged(object sender, LayerViewStateChangedEventArgs e)
{
_status.Add($"MyMapView_LayerViewStateChanged:\t{e.Layer.Name}:\t{e.LayerViewState.Status}");
}
private async void Button_Click(object sender, RoutedEventArgs e)
{
var mmpk = await MobileMapPackage.OpenAsync(@"C:\Temp\sanfrancisco.mmpk");
foreach (var layer in mmpk.Maps[0].Basemap.BaseLayers.ToList())
{
mmpk.Maps[0].Basemap.BaseLayers.Remove(layer);
MyMapView.Map.Basemap.BaseLayers.Add(layer);
}
foreach (var layer in mmpk.Maps[0].OperationalLayers.ToList())
{
mmpk.Maps[0].OperationalLayers.Remove(layer);
MyMapView.Map.OperationalLayers.Add(layer);
}
}
