protected override NativeTileOverlay CreateNativeItem(TileLayer outerItem)
{
var opts = new TileOverlayOptions();
ITileProvider nativeTileProvider;
if (outerItem.MakeTileUri != null)
{
nativeTileProvider = new DroidUrlTileLayer(outerItem.MakeTileUri, outerItem.TileSize);
}
else if (outerItem.TileImageSync != null)
{
nativeTileProvider = new DroidSyncTileLayer(outerItem.TileImageSync, outerItem.TileSize);
}
else
{
nativeTileProvider = new DroidAsyncTileLayer(outerItem.TileImageAsync, outerItem.TileSize);
}
var nativeTileOverlay = NativeMap.AddTileOverlay(
opts.InvokeTileProvider(nativeTileProvider)
.InvokeZIndex(outerItem.ZIndex));
// associate pin with marker for later lookup in event handlers
outerItem.NativeObject = nativeTileOverlay;
return(nativeTileOverlay);
}
private void AddTrackerForOverlay(SKMapOverlay sharedOverlay)
{
OverlayTrackerTileProvider tracker = new OverlayTrackerTileProvider(Context, NativeMap, sharedOverlay);
TileOverlayOptions overlayOptions = new TileOverlayOptions().InvokeTileProvider(tracker);
TileOverlay overlay = NativeMap.AddTileOverlay(overlayOptions);
tracker.TileOverlay = overlay;
_TileTrackers.Add(tracker);
}