public override void LoadTileAtPath(MKTileOverlayPath path, MKTileOverlayLoadTileCompletionHandler result)
{
var key = path.GetKey();
var data = _cache.ObjectForKey(key) as NSData;
if (data != null)
{
result.Invoke(data, null);
return;
}
if (path.Z > MaximumZ)
{
var cut = Normalize(path, MaximumZ);
data = _cache.ObjectForKey(key) as NSData;
if (data != null)
{
result.Invoke(data, null);
return;
}
base.LoadTileAtPath(cut.Path, (tileData, error) =>
{
if (tileData != null)
{
tileData = ProcessImage(tileData, cut);
_cache.SetObjectforKey(tileData, key);
}
result.Invoke(tileData, error);
});
return;
}
base.LoadTileAtPath(path, result);
}
public override void LoadTileAtPath(MKTileOverlayPath path, MKTileOverlayLoadTileCompletionHandler result)
{
NSUrl url = urlForTilePath(path);
NSMutableUrlRequest request = new NSMutableUrlRequest(url);
request.HttpMethod = "GET";
NSUrlSession.SharedSession.CreateDataTask(request, (data, response, error) => {
result(data, null);
}).Resume();
}
public override void LoadTileAtPath(MKTileOverlayPath path, MKTileOverlayLoadTileCompletionHandler result)
{
if (TileService != null)
{
Tile tile = TileService.TryGetTile((int)path.X, (int)((int)Math.Pow(2, path.Z) - 1 - path.Y), (int)path.Z);
if (tile != null)
{
NSData tileData = NSData.FromArray(tile.TileData);
result.Invoke(tileData, null);
}
}
}
public override void LoadTileAtPath(MKTileOverlayPath path, MKTileOverlayLoadTileCompletionHandler result)
{
base.LoadTileAtPath(path, result);
}
