Use offline OSM map in Android native app

Hello Friends,

For more than 2 weeks, i was working to use OSM Offline map in Android application. I have gone through many articles, blogs and question/answers of Stackoverflow, but could not find the solutions. still i am at the stage where i was earlier.

Using maperitive.net, i have downloaded Map tiles of India for 2-12 Zoom level. i have given the name to the root folder is Mapnik and Mapnik.zip for its zip file. i have copied the file at /sdcard/osmdroid folder.

Below is code of my android app :

Manifest file :

Layout file

Java file :

public class MainActivity extends Activity {

    private MapView         map;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        map = (MapView) findViewById(R.id.mapview);
        map.setUseDataConnection(false);
        map.setTileSource(TileSourceFactory.MAPNIK);
        map.setTileSource(new XYTileSource("Mapnik",
                ResourceProxy.string.mapnik, 2, 12, 256, ".png", new String[] {}));

        map.setBuiltInZoomControls(true);
        map.setMultiTouchControls(true);

        IMapController mapController = map.getController();
        mapController.setZoom(10);
        GeoPoint startPoint = new GeoPoint(22.8583, 72.2944);
        mapController.setCenter(startPoint);

    }

    @Override
    protected void onResume() {
        super.onResume();

    }
}