Sorry for my bad English. I have question. Is it possible to use two or more online source base the same time in the mapview? For example, i have two online source base, one of this map tiles, and the other one displays traffic jam in the roads. Both tiles are 256x256 px jpg format. I want to display traffic jam tiles above map tiles. is it possible?
Yes, it is possible. Create a new TilesOverlay
for your traffic jam tiles and add it to the list of overlays of your map.
Take a look at SampleWithTilesOverlayAndCustomTileSource.java in the OpenStreetMapViewer samples:
final MapView osmv = new MapView(this, 256);
// …
// Add tiles layer with custom tile source
final MapTileProviderBasic tileProvider =
new MapTileProviderBasic(getApplicationContext());
final ITileSource tileSource =
new XYTileSource("FietsRegionaal", null, 3, 18, 256, ".png",
new String [] {"http://overlay.openstreetmap.nl/openfietskaart-rcn/"});
tileProvider.setTileSource(tileSource);
final TilesOverlay tilesOverlay = new TilesOverlay(tileProvider,
this.getBaseContext());
tilesOverlay.setLoadingBackgroundColor(Color.TRANSPARENT);
osmv.getOverlays().add(tilesOverlay);