osmdroid density based TileSource

DensityBasedTileSource.java

package sk.virtualvoid.osmdroid;

import android.content.Context;

import org.osmdroid.tileprovider.tilesource.XYTileSource;

/**
 * Created by suchan_j on 16.11.2015.
 */
public class DensityBasedTileSource {
    private static final String key = "OSM";
    private static final String imageFormat = ".png";

    private static final Integer minZoomLevel = 1;
    private static final Integer maxZoomLevel = 18;

    public static XYTileSource getTileSource(Context context) {
        final float scale = context.getResources().getDisplayMetrics().density;
        final int newScale = (int) (256 * scale);

        String[] osmSources = new String[] {
                "http://a.tile.openstreetmap.org/",
                "http://b.tile.openstreetmap.org/",
                "http://c.tile.openstreetmap.org/"
        };

        XYTileSource tileSource = new XYTileSource(key, null, minZoomLevel, maxZoomLevel, newScale, imageFormat, osmSources);
        return tileSource;
    }
}