private async void CanBeTakenOffline(OfflineMapTask task, GenerateOfflineMapParameters parameters)
{
OfflineMapCapabilities results = await task.GetOfflineMapCapabilitiesAsync(parameters);
if (results.HasErrors)
{
// Handle possible errors with layers
foreach (var layerCapability in results.LayerCapabilities)
{
if (!layerCapability.Value.SupportsOffline)
{
Debug.WriteLine(layerCapability.Key.Name + " cannot be taken offline. Error : " + layerCapability.Value.Error.Message);
}
}
// Handle possible errors with tables
foreach (var tableCapability in results.TableCapabilities)
{
if (!tableCapability.Value.SupportsOffline)
{
Debug.WriteLine(tableCapability.Key.TableName + " cannot be taken offline. Error : " + tableCapability.Value.Error.Message);
}
}
}
else
{
// All layers and tables can be taken offline!
MessageBox.Show("All layers are good to go!");
Debug.WriteLine("All layers are good to go!");
}
}
private async void GenerateOnDemand()
{
ArcGISPortal portal = await ArcGISPortal.CreateAsync();
// Get a web map item using its ID.
PortalItem webmapItem = await PortalItem.CreateAsync(portal, "dba73588a56d476484b8d0fa1c480c9b");
// Create a map from the web map item.
Map onlineMap = new Map(webmapItem);
// Create an OfflineMapTask from the map ...
OfflineMapTask takeMapOfflineTask = await OfflineMapTask.CreateAsync(onlineMap);
// ... or a web map portal item.
takeMapOfflineTask = await OfflineMapTask.CreateAsync(webmapItem);
await onlineMap.LoadAsync();
// Create default parameters for the task.
Envelope areaOfInterest = GetAreaOfInterest();
GenerateOfflineMapParameters parameters = await takeMapOfflineTask.CreateDefaultGenerateOfflineMapParametersAsync(areaOfInterest);
// Limit the maximum scale to 5000 but take all the scales above (use default of 0 as the MinScale).
parameters.MaxScale = 5000;
// Set attachment options.
parameters.AttachmentSyncDirection = AttachmentSyncDirection.Upload;
parameters.ReturnLayerAttachmentOption = ReturnLayerAttachmentOption.EditableLayers;
// Request the table schema only (existing features won’t be included).
parameters.ReturnSchemaOnlyForEditableLayers = true;
// Update the map title to contain the region.
parameters.ItemInfo.Title = parameters.ItemInfo.Title + " (Central)";
// Override the thumbnail with a new image based on the extent.
RuntimeImage thumbnail = await MyMapView.ExportImageAsync();
parameters.ItemInfo.Thumbnail = thumbnail;
// Create the job to generate an offline map, pass in the parameters and a path to store the map package.
GenerateOfflineMapJob generateMapJob = takeMapOfflineTask.GenerateOfflineMap(parameters, pathToOutputPackage);
// Generate the offline map and download it.
GenerateOfflineMapResult offlineMapResult = await generateMapJob.GetResultAsync();
if (!offlineMapResult.HasErrors)
{
// Job completed successfully and all content was generated.
Debug.WriteLine("Map " +
offlineMapResult.MobileMapPackage.Item.Title +
" was saved to " +
offlineMapResult.MobileMapPackage.Path);
// Show the offline map in a MapView.
MyMapView.Map = offlineMapResult.OfflineMap;
}
else
{
// Job is finished but one or more layers or tables had errors.
if (offlineMapResult.LayerErrors.Count > 0)
{
// Show layer errors.
foreach (var layerError in offlineMapResult.LayerErrors)
{
Debug.WriteLine("Error occurred when taking " +
layerError.Key.Name +
" offline. Error : " +
layerError.Value.Message);
}
}
if (offlineMapResult.TableErrors.Count > 0)
{
// Show table errors.
foreach (var tableError in offlineMapResult.TableErrors)
{
Debug.WriteLine("Error occurred when taking " +
tableError.Key.TableName +
" offline. Error : " +
tableError.Value.Message);
}
}
}
OfflineMapCapabilities results = await takeMapOfflineTask.GetOfflineMapCapabilitiesAsync(parameters);
if (results.HasErrors)
{
// Handle possible errors with layers
foreach (var layerCapability in results.LayerCapabilities)
{
if (!layerCapability.Value.SupportsOffline)
{
Debug.WriteLine(layerCapability.Key.Name + " cannot be taken offline. Error : " + layerCapability.Value.Error.Message);
}
}
// Handle possible errors with tables
foreach (var tableCapability in results.TableCapabilities)
{
if (!tableCapability.Value.SupportsOffline)
{
Debug.WriteLine(tableCapability.Key.TableName + " cannot be taken offline. Error : " + tableCapability.Value.Error.Message);
}
}
}
else
{
// All layers and tables can be taken offline!
MessageBox.Show("All layers are good to go!");
}
// Create a mobile map package from an unpacked map package folder.
MobileMapPackage offlineMapPackage = await MobileMapPackage.OpenAsync(pathToOutputPackage);
// Set the title from the package metadata to the UI
// Get the map from the package and set it to the MapView
var map = offlineMapPackage.Maps.First();
MyMapView.Map = map;
}