How to use WMTS url service in my android map application as basemap?

Question

I am building a android map application and i want to use as basemap some wmts url services of our country.

How can i implement this and get layers from WMTS url services as TileOverlay to google map android api? Example:

Wmts source: http://geoportal.asig.gov.al:85/utm34n/wmts/1.0.0/WMTSCapabilities.xml

the tileoverlay url inside xml configuration:

http://geoportal.asig.gov.al/Services/host/host.ashx?url=http://localhost:85/utm34n/ortofoto/{TileMatrixSet}/{TileMatrix}/{TileCol}/{TileRow}.jpg

but Google Map Android Api needed this configuration of url:

http://my.image.server/images/x/y/z.png

x- x coordinate ( start from 0 to maxwidth) y- y coordinate ( start from 0 to maxheight) z- Zoom

refer to documentation: https://developers.google.com/maps/documentation/android-api/tileoverlay

How can I format the url from the wmts service ResourceURL( from WMTSCapabilities.xml), to integrate inside google map android api?

Answer 1

Maybe you already found solution but anyway. Like in the documentation is: /* Define the URL pattern for the tile images */ String s = String.format("http://my.image.server/images/%d/%d/%d.png", zoom, x, y);

Change the path to this and then: tilematrix=zoom, tilecol=x and tilerow=y

String s = String.format("http://geoportal.asig.gov.al/Services/host/host.ashx?url=http://localhost:85/utm34n/ortofoto/UTM34N/%d/%d/%d.jpg",zoom,x,y)

Answer 2

Using esri map you can call wmts services

WmtsService wmtsService = new WmtsService(getString(R.string.wmts_url));
wmtsService.addDoneLoadingListener(() -> {
  if (wmtsService.getLoadStatus() == LoadStatus.LOADED) {
    // get service info
    WmtsServiceInfo wmtsServiceInfo = wmtsService.getServiceInfo();
    // get the first layer id
    List<WmtsLayerInfo> layerInfoList = wmtsServiceInfo.getLayerInfos();
    // create WMTS layer from layer info
    WmtsLayer wmtsLayer = new WmtsLayer(layerInfoList.get(0));
    // set the basemap of the map with WMTS layer
    map.setBasemap(new Basemap(wmtsLayer));
  } else {
    String error = "Error loading WMTS Service: " + wmtsService.getLoadError();
    Log.e(TAG, error);
    Toast.makeText(this, error, Toast.LENGTH_LONG).show();
  }
});wmtsService.loadAsync();