private async void TakeMapOfflineButton_Click(object sender, EventArgs e)
{
// Show the loading indicator.
_loadingIndicator.StartAnimating();
// Create a path for the output mobile map.
string tempPath = $"{Path.GetTempPath()}";
string[] outputFolders = Directory.GetDirectories(tempPath, "NapervilleWaterNetwork*");
// Loop through the folder names and delete them.
foreach (string dir in outputFolders)
{
try
{
// Delete the folder.
Directory.Delete(dir, true);
}
catch (Exception)
{
// Ignore exceptions (files might be locked, for example).
}
}
// Create a new folder for the output mobile map.
string packagePath = Path.Combine(tempPath, @"NapervilleWaterNetwork");
int num = 1;
while (Directory.Exists(packagePath))
{
packagePath = Path.Combine(tempPath, @"NapervilleWaterNetwork" + num);
num++;
}
// Create the output directory.
Directory.CreateDirectory(packagePath);
// Show the loading overlay while the job is running.
_statusLabel.Text = "Taking map offline...";
// Create an offline map task with the current (online) map.
OfflineMapTask takeMapOfflineTask = await OfflineMapTask.CreateAsync(_myMapView.Map);
// Create the default parameters for the task, pass in the area of interest.
GenerateOfflineMapParameters parameters = await takeMapOfflineTask.CreateDefaultGenerateOfflineMapParametersAsync(_areaOfInterest);
// Configure basemap settings for the job.
ConfigureOfflineJobForBasemap(parameters, async() =>
{
try
{
// Create the job with the parameters and output location.
_generateOfflineMapJob = takeMapOfflineTask.GenerateOfflineMap(parameters, packagePath);
// Handle the progress changed event for the job.
_generateOfflineMapJob.ProgressChanged += OfflineMapJob_ProgressChanged;
// Await the job to generate geodatabases, export tile packages, and create the mobile map package.
GenerateOfflineMapResult results = await _generateOfflineMapJob.GetResultAsync();
// Check for job failure (writing the output was denied, e.g.).
if (_generateOfflineMapJob.Status != JobStatus.Succeeded)
{
// Report failure to the user.
UIAlertController messageAlert = UIAlertController.Create("Error", "Failed to take the map offline.", UIAlertControllerStyle.Alert);
messageAlert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(messageAlert, true, null);
}
// Check for errors with individual layers.
if (results.LayerErrors.Any())
{
// Build a string to show all layer errors.
StringBuilder errorBuilder = new StringBuilder();
foreach (KeyValuePair <Layer, Exception> layerError in results.LayerErrors)
{
errorBuilder.AppendLine($"{layerError.Key.Id} : {layerError.Value.Message}");
}
// Show layer errors.
UIAlertController messageAlert = UIAlertController.Create("Error", errorBuilder.ToString(), UIAlertControllerStyle.Alert);
messageAlert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(messageAlert, true, null);
}
// Display the offline map.
_myMapView.Map = results.OfflineMap;
// Apply the original viewpoint for the offline map.
_myMapView.SetViewpoint(new Viewpoint(_areaOfInterest));
// Enable map interaction so the user can explore the offline data.
_myMapView.InteractionOptions.IsEnabled = true;
// Change the title and disable the "Take map offline" button.
_statusLabel.Text = "Map is offline";
_takeMapOfflineButton.Enabled = false;
}
catch (TaskCanceledException)
{
// Generate offline map task was canceled.
UIAlertController messageAlert = UIAlertController.Create("Canceled", "Taking map offline was canceled", UIAlertControllerStyle.Alert);
messageAlert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(messageAlert, true, null);
}
catch (Exception ex)
{
// Exception while taking the map offline.
UIAlertController messageAlert = UIAlertController.Create("Error", ex.Message, UIAlertControllerStyle.Alert);
messageAlert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(messageAlert, true, null);
}
finally
{
// Hide the loading overlay when the job is done.
_loadingIndicator.StopAnimating();
}
});
}
private async void TakeMapOfflineButton_Click(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
// Create a new folder for the output mobile map.
string packagePath = Path.Combine(Environment.ExpandEnvironmentVariables("%TEMP%"), @"NapervilleWaterNetwork");
int num = 1;
while (Directory.Exists(packagePath))
{
packagePath = Path.Combine(Environment.ExpandEnvironmentVariables("%TEMP%"), @"NapervilleWaterNetwork" + num.ToString());
num++;
}
// Create the output directory.
Directory.CreateDirectory(packagePath);
try
{
// Show the progress indicator while the job is running.
busyIndicator.Visibility = Windows.UI.Xaml.Visibility.Visible;
// Create an offline map task with the current (online) map.
OfflineMapTask takeMapOfflineTask = await OfflineMapTask.CreateAsync(MyMapView.Map);
// Create the default parameters for the task, pass in the area of interest.
GenerateOfflineMapParameters parameters = await takeMapOfflineTask.CreateDefaultGenerateOfflineMapParametersAsync(_areaOfInterest);
// Create the job with the parameters and output location.
_generateOfflineMapJob = takeMapOfflineTask.GenerateOfflineMap(parameters, packagePath);
// Handle the progress changed event for the job.
_generateOfflineMapJob.ProgressChanged += OfflineMapJob_ProgressChanged;
// Await the job to generate geodatabases, export tile packages, and create the mobile map package.
GenerateOfflineMapResult results = await _generateOfflineMapJob.GetResultAsync();
// Check for job failure (writing the output was denied, e.g.).
if (_generateOfflineMapJob.Status != JobStatus.Succeeded)
{
MessageDialog dialog = new MessageDialog("Generate offline map package failed.", "Job status");
await dialog.ShowAsync();
busyIndicator.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
// Check for errors with individual layers.
if (results.LayerErrors.Any())
{
// Build a string to show all layer errors.
System.Text.StringBuilder errorBuilder = new System.Text.StringBuilder();
foreach (KeyValuePair <Layer, Exception> layerError in results.LayerErrors)
{
errorBuilder.AppendLine(string.Format("{0} : {1}", layerError.Key.Id, layerError.Value.Message));
}
// Show layer errors.
string errorText = errorBuilder.ToString();
MessageDialog dialog = new MessageDialog(errorText, "Layer errors");
await dialog.ShowAsync();
}
// Display the offline map.
MyMapView.Map = results.OfflineMap;
// Apply the original viewpoint for the offline map.
MyMapView.SetViewpoint(new Viewpoint(_areaOfInterest));
// Enable map interaction so the user can explore the offline data.
MyMapView.InteractionOptions.IsEnabled = true;
// Hide the "Take map offline" button.
takeOfflineArea.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
// Show a message that the map is offline.
messageArea.Visibility = Windows.UI.Xaml.Visibility.Visible;
}
catch (TaskCanceledException)
{
// Generate offline map task was canceled.
MessageDialog dialog = new MessageDialog("Taking map offline was canceled");
await dialog.ShowAsync();
}
catch (Exception ex)
{
// Exception while taking the map offline.
MessageDialog dialog = new MessageDialog(ex.Message, "Offline map error");
await dialog.ShowAsync();
}
finally
{
// Hide the activity indicator when the job is done.
busyIndicator.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
}
private async void TakeMapOfflineButton_Click(object sender, EventArgs e)
{
// Clean up any previous outputs in the temp directory.
string tempPath = $"{Path.GetTempPath()}";
string[] outputFolders = Directory.GetDirectories(tempPath, "NapervilleWaterNetwork*");
// Loop through the folder names and delete them.
foreach (string dir in outputFolders)
{
try
{
// Delete the folder.
Directory.Delete(dir, true);
}
catch (Exception)
{
// Ignore exceptions (files might be locked, for example).
}
}
// Create a new folder for the output mobile map.
string packagePath = Path.Combine(tempPath, @"NapervilleWaterNetwork");
int num = 1;
while (Directory.Exists(packagePath))
{
packagePath = Path.Combine(tempPath, @"NapervilleWaterNetwork" + num.ToString());
num++;
}
// Create the output directory.
Directory.CreateDirectory(packagePath);
try
{
// Show the progress indicator while the job is running.
busyIndicator.IsVisible = true;
// Create an offline map task with the current (online) map.
OfflineMapTask takeMapOfflineTask = await OfflineMapTask.CreateAsync(MyMapView.Map);
// Create the default parameters for the task, pass in the area of interest.
GenerateOfflineMapParameters parameters = await takeMapOfflineTask.CreateDefaultGenerateOfflineMapParametersAsync(_areaOfInterest);
// Create the job with the parameters and output location.
_generateOfflineMapJob = takeMapOfflineTask.GenerateOfflineMap(parameters, packagePath);
// Handle the progress changed event for the job.
_generateOfflineMapJob.ProgressChanged += OfflineMapJob_ProgressChanged;
// Await the job to generate geodatabases, export tile packages, and create the mobile map package.
GenerateOfflineMapResult results = await _generateOfflineMapJob.GetResultAsync();
// Check for job failure (writing the output was denied, e.g.).
if (_generateOfflineMapJob.Status != JobStatus.Succeeded)
{
await Application.Current.MainPage.DisplayAlert("Alert", "Generate offline map package failed.", "OK");
busyIndicator.IsVisible = false;
}
// Check for errors with individual layers.
if (results.LayerErrors.Any())
{
// Build a string to show all layer errors.
System.Text.StringBuilder errorBuilder = new System.Text.StringBuilder();
foreach (KeyValuePair <Layer, Exception> layerError in results.LayerErrors)
{
errorBuilder.AppendLine(string.Format("{0} : {1}", layerError.Key.Id, layerError.Value.Message));
}
// Show layer errors.
string errorText = errorBuilder.ToString();
await Application.Current.MainPage.DisplayAlert("Alert", errorText, "OK");
}
// Display the offline map.
MyMapView.Map = results.OfflineMap;
// Apply the original viewpoint for the offline map.
MyMapView.SetViewpoint(new Viewpoint(_areaOfInterest));
// Enable map interaction so the user can explore the offline data.
MyMapView.InteractionOptions.IsEnabled = true;
// Hide the "Take map offline" button.
takeOfflineArea.IsVisible = false;
// Show a message that the map is offline.
messageArea.IsVisible = true;
}
catch (TaskCanceledException)
{
// Generate offline map task was canceled.
await Application.Current.MainPage.DisplayAlert("Alert", "Taking map offline was canceled", "OK");
}
catch (Exception ex)
{
// Exception while taking the map offline.
await Application.Current.MainPage.DisplayAlert("Alert", ex.Message, "OK");
}
finally
{
// Hide the activity indicator when the job is done.
busyIndicator.IsVisible = false;
}
}
/// <summary>
/// Handles download job status changes when download succeeds or fails
/// </summary>
private async void GenerateOfflineMapJob_JobChanged(object sender, EventArgs e)
{
// If the job succeeded, check for layer and table errors
// if job fails, get the error
if (GenerateOfflineMapJob.Status == JobStatus.Succeeded)
{
// remove event handler so it doesn't fire multiple times
GenerateOfflineMapJob.JobChanged -= GenerateOfflineMapJob_JobChanged;
try
{
var result = await GenerateOfflineMapJob.GetResultAsync();
// download has succeeded and there were no errors, return
if (result.LayerErrors.Count == 0 && result.TableErrors.Count == 0)
{
BroadcastMessenger.Instance.RaiseBroadcastMessengerValueChanged(true, BroadcastMessageKey.SyncSucceeded);
}
else
{
// if there were errors, create the error message to display to the user
var stringBuilder = new StringBuilder();
foreach (var error in result.LayerErrors)
{
stringBuilder.AppendLine(error.Value.Message);
}
foreach (var error in result.TableErrors)
{
stringBuilder.AppendLine(error.Value.Message);
}
UserPromptMessenger.Instance.RaiseMessageValueChanged(
Resources.GetString("DownloadWithErrors_Title"), stringBuilder.ToString()
, true, null);
BroadcastMessenger.Instance.RaiseBroadcastMessengerValueChanged(true, BroadcastMessageKey.SyncSucceeded);
}
}
catch (Exception ex)
{
UserPromptMessenger.Instance.RaiseMessageValueChanged(
Resources.GetString("GenericError_Title"),
ex.Message,
true,
ex.StackTrace);
}
}
else if (GenerateOfflineMapJob.Status == JobStatus.Failed)
{
// remove event handler so it doesn't fire multiple times
GenerateOfflineMapJob.JobChanged -= GenerateOfflineMapJob_JobChanged;
// if the job failed but not due to user cancellation, display the error
if (GenerateOfflineMapJob.Error != null &&
GenerateOfflineMapJob.Error.Message != "User canceled: Job canceled.")
{
UserPromptMessenger.Instance.RaiseMessageValueChanged(
Properties.Resources.GetString("DownloadFailed_Title"), GenerateOfflineMapJob.Error.Message, true, GenerateOfflineMapJob.Error.StackTrace);
}
BroadcastMessenger.Instance.RaiseBroadcastMessengerValueChanged(false, BroadcastMessageKey.SyncSucceeded);
}
}
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;
}
private async void ConfigurationContinuation(object sender, EventArgs e)
{
try
{
// Show the progress dialog while the job is running.
_alertDialog.Show();
// Create the job with the parameters and output location.
_generateOfflineMapJob = _takeMapOfflineTask.GenerateOfflineMap(_parameters, _packagePath, _overrides);
// Handle the progress changed event for the job.
_generateOfflineMapJob.ProgressChanged += OfflineMapJob_ProgressChanged;
// Await the job to generate geodatabases, export tile packages, and create the mobile map package.
GenerateOfflineMapResult results = await _generateOfflineMapJob.GetResultAsync();
// Check for job failure (writing the output was denied, e.g.).
if (_generateOfflineMapJob.Status != JobStatus.Succeeded)
{
// Report failure to the user.
ShowStatusMessage("Failed to take the map offline.");
}
// Check for errors with individual layers.
if (results.LayerErrors.Any())
{
// Build a string to show all layer errors.
System.Text.StringBuilder errorBuilder = new System.Text.StringBuilder();
foreach (KeyValuePair <Layer, Exception> layerError in results.LayerErrors)
{
errorBuilder.AppendLine($"{layerError.Key.Id} : {layerError.Value.Message}");
}
// Show layer errors.
ShowStatusMessage(errorBuilder.ToString());
}
// Display the offline map.
_mapView.Map = results.OfflineMap;
// Apply the original viewpoint for the offline map.
_mapView.SetViewpoint(new Viewpoint(_areaOfInterest));
// Enable map interaction so the user can explore the offline data.
_mapView.InteractionOptions.IsEnabled = true;
// Change the title and disable the "Take map offline" button.
_takeMapOfflineButton.Text = "Map is offline";
_takeMapOfflineButton.Enabled = false;
}
catch (TaskCanceledException)
{
// Generate offline map task was canceled.
ShowStatusMessage("Taking map offline was canceled");
}
catch (Exception ex)
{
// Exception while taking the map offline.
ShowStatusMessage(ex.Message);
}
finally
{
_alertDialog.Dismiss();
}
}
private async void GenerateMapArea()
{
try
{
_windowService.SetBusyMessage("Taking map offline");
_windowService.SetBusy(true);
string offlineDataFolder = OfflineDataStorageHelper.GetDataFolderForMap(Map);
// If temporary data folder exists remove it
try
{
if (Directory.Exists(offlineDataFolder))
{
Directory.Delete(offlineDataFolder, true);
}
}
catch (Exception)
{
// If folder can't be deleted, open a new one.
offlineDataFolder = Path.Combine(offlineDataFolder, DateTime.Now.Ticks.ToString());
}
// If temporary data folder doesn't exists, create it
if (!Directory.Exists(offlineDataFolder))
{
Directory.CreateDirectory(offlineDataFolder);
}
// Get area of interest as a envelope from the map view
var areaOfInterest =
_mapViewService.GetCurrentViewpoint(ViewpointType.BoundingGeometry)
.TargetGeometry as Envelope;
// Step 1 : Create task with the map that is taken offline
var task = await OfflineMapTask.CreateAsync(Map);
// Step 2 : Create parameters based on selections
var parameters = await task.CreateDefaultGenerateOfflineMapParametersAsync(
areaOfInterest);
parameters.MaxScale = _levelsOfDetail[SelectedLevelOfDetail].Scale;
parameters.MinScale = 0;
parameters.IncludeBasemap = IncludeBasemap;
parameters.ReturnLayerAttachmentOption = ReturnLayerAttachmentOption.None;
// Step 3 : Create job that does the work asynchronously and
// set progress indication
_job = task.GenerateOfflineMap(parameters, offlineDataFolder);
_job.ProgressChanged += GenerateOfflineMap_ProgressChanged;
// Step 4 : Run the job and wait the results
var results = await _job.GetResultAsync();
if (results.HasErrors)
{
string errorString = "";
// If one or more layers fails, layer errors are populated with corresponding errors.
foreach (var(key, value) in results.LayerErrors)
{
errorString += $"Error occurred on {key.Name} : {value.Message}\r\n";
}
foreach (var(key, value) in results.TableErrors)
{
errorString += $"Error occurred on {key.TableName} : {value.Message}\r\n";
}
OfflineDataStorageHelper.FlushLogToDisk(errorString, Map);
}
// Step 5 : Use results
Map = results.OfflineMap;
RefreshCommands();
}
catch (Exception ex)
{
await _windowService.ShowAlertAsync(ex.Message, "Error generating offline map");
}
finally
{
_windowService.SetBusy(false);
}
}