private async void TakeMapOfflineButton_Click(object sender, EventArgs e)
{
// 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.
_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
{
// Create an offline map task with the current (online) map.
_takeMapOfflineTask = await OfflineMapTask.CreateAsync(_mapView.Map);
// Create the default parameters for the task, pass in the area of interest.
_parameters = await _takeMapOfflineTask.CreateDefaultGenerateOfflineMapParametersAsync(_areaOfInterest);
// Get the overrides.
_overrides = await _takeMapOfflineTask.CreateGenerateOfflineMapParameterOverridesAsync(_parameters);
// Create the overrides UI.
ParameterOverrideFragment overlayFragment = new ParameterOverrideFragment(_overrides, _mapView.Map);
// Complete configuration when the dialog is closed.
overlayFragment.FinishedConfiguring += ConfigurationContinuation;
// Display the configuration window.
overlayFragment.Show(FragmentManager, "");
}
catch (Exception ex)
{
// Exception while taking the map offline.
ShowStatusMessage(ex.Message);
}
}
private async void TakeMapOfflineButton_Click(object sender, EventArgs e)
{
// 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.ToString());
num++;
}
// Create the output directory.
Directory.CreateDirectory(packagePath);
try
{
// Create an offline map task with the current (online) map.
OfflineMapTask takeMapOfflineTask = await OfflineMapTask.CreateAsync(_mapView.Map);
// Create the default parameters for the task, pass in the area of interest.
GenerateOfflineMapParameters parameters = await takeMapOfflineTask.CreateDefaultGenerateOfflineMapParametersAsync(_areaOfInterest);
// Get the overrides.
GenerateOfflineMapParameterOverrides overrides = await takeMapOfflineTask.CreateGenerateOfflineMapParameterOverridesAsync(parameters);
// Create the overrides UI.
ParameterOverrideFragment overlayFragment = new ParameterOverrideFragment(overrides, _mapView.Map);
// Resume work when the dialog is closed.
overlayFragment.FinishedConfiguring += async(o, args) =>
{
// 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;
};
overlayFragment.Show(FragmentManager, "");
}
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
{
// Hide the loading overlay when the job is done.
_alertDialog.Dismiss();
}
}
