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package org.osmdroid.bonuspack.mapsforge; //from w ww. j av a 2 s. c om import java.io.File; import org.osmdroid.tileprovider.IRegisterReceiver; import org.osmdroid.tileprovider.MapTileRequestState; import org.osmdroid.tileprovider.modules.MapTileFileStorageProviderBase; import org.osmdroid.tileprovider.modules.MapTileModuleProviderBase; import org.osmdroid.tileprovider.tilesource.ITileSource; import android.graphics.drawable.Drawable; /** * http://www.salidasoftware.com/how-to-render-mapsforge-tiles-in-osmdroid/ * @author Salida Software * Adapted from code found here : http://www.sieswerda.net/2012/08/15/upping-the-developer-friendliness/ */ public class MapsForgeTileModuleProvider extends MapTileFileStorageProviderBase { protected MapsForgeTileSource tileSource; /** * Constructor * * @param receiverRegistrar * @param file * @param tileSource */ public MapsForgeTileModuleProvider(IRegisterReceiver receiverRegistrar, File file, MapsForgeTileSource tileSource) { super(receiverRegistrar, NUMBER_OF_TILE_FILESYSTEM_THREADS, TILE_FILESYSTEM_MAXIMUM_QUEUE_SIZE); this.tileSource = tileSource; } @Override protected String getName() { return "MapsforgeTiles Provider"; } @Override protected String getThreadGroupName() { return "mapsforgetilesprovider"; } @Override protected Runnable getTileLoader() { return new TileLoader(); } @Override public boolean getUsesDataConnection() { return false; } @Override public int getMinimumZoomLevel() { return tileSource.getMinimumZoomLevel(); } @Override public int getMaximumZoomLevel() { return tileSource.getMaximumZoomLevel(); } @Override public void setTileSource(ITileSource tileSource) { //prevent re-assignment of tile source if (tileSource instanceof MapsForgeTileSource) { this.tileSource = (MapsForgeTileSource) tileSource; } } private class TileLoader extends MapTileModuleProviderBase.TileLoader { @Override public Drawable loadTile(final MapTileRequestState pState) { return tileSource.renderTile(pState.getMapTile()); } } }