public static void InitializePackageManager(string packageFolder,
string importPackagePath, IMapView mapView, string downloadedPackage)
{
// Offline base layer
// Define listener, definition is in same class above
var packageManager = new CartoPackageManager("nutiteq.osm", packageFolder);
packageManager.PackageManagerListener = new PackageListener(packageManager, downloadedPackage);
// Download new package list only if it is older than 24h
// Note: this is only needed if pre-made packages are used
if (packageManager.ServerPackageListAge > 24 * 60 * 60)
{
packageManager.StartPackageListDownload();
}
// Start manager - mandatory
packageManager.Start();
// Import initial package
if (packageManager.GetLocalPackage("world0_4") == null)
{
packageManager.StartPackageImport("world0_4", 1, importPackagePath);
}
// Now can add vector map as layer
// Define styling for vector map
BinaryData styleBytes = AssetUtils.LoadAsset("nutibright-v2a.zip");
MBVectorTileDecoder vectorTileDecoder = null;
if (styleBytes != null)
{
// Create style set
var vectorTileStyleSet = new CompiledStyleSet(new ZippedAssetPackage(styleBytes));
vectorTileDecoder = new MBVectorTileDecoder(vectorTileStyleSet);
}
else
{
Log.Error("Failed to load style data");
}
// Create online base layer (no package download needed then). Use vector style from assets (osmbright.zip)
// comment in to use online map. Packagemanager stuff is not needed then
//VectorTileLayer baseLayer = new NutiteqOnlineVectorTileLayer("osmbright.zip");
var baseLayer = new VectorTileLayer(new PackageManagerTileDataSource(packageManager), vectorTileDecoder);
mapView.Layers.Add(baseLayer);
}