diff --git a/src/org/oscim/layers/tile/MapTileLayer.java b/src/org/oscim/layers/tile/MapTileLayer.java
index 6fd115f3..09162b17 100644
--- a/src/org/oscim/layers/tile/MapTileLayer.java
+++ b/src/org/oscim/layers/tile/MapTileLayer.java
@@ -44,11 +44,12 @@ public class MapTileLayer extends TileLayer<MapTileLoader> {
 	private final static String TAG = MapTileLayer.class.getName();
 
 	public MapTileLayer(MapView mapView) {
-		super(mapView, new TileLoader.Factory<MapTileLoader>(){
-			@Override
-			public MapTileLoader create(JobQueue q, TileManager tm) {
-				return new MapTileLoader(q, tm);
-			}});
+		super(mapView);
+	}
+
+	@Override
+	protected MapTileLoader createLoader(JobQueue q, TileManager tm) {
+		return new MapTileLoader(q, tm);
 	}
 
 	private MapOptions mMapOptions;
diff --git a/src/org/oscim/layers/tile/TestTileLayer.java b/src/org/oscim/layers/tile/TestTileLayer.java
index 6d9904b9..5d8ad390 100644
--- a/src/org/oscim/layers/tile/TestTileLayer.java
+++ b/src/org/oscim/layers/tile/TestTileLayer.java
@@ -30,12 +30,12 @@ public class TestTileLayer extends TileLayer<TestTileLoader> {
 	final static String TAG = TestTileLayer.class.getName();
 
 	public TestTileLayer(MapView mapView) {
-		// create an TileLayer instance using TestTileLoader as TileLoader
-		super(mapView, new TileLoader.Factory<TestTileLoader>(){
-			@Override
-			public TestTileLoader create(JobQueue q, TileManager tm) {
-				return new TestTileLoader(q, tm);
-			}});
+		super(mapView);
+	}
+
+	@Override
+	protected TestTileLoader createLoader(JobQueue q, TileManager tm) {
+		return new TestTileLoader(q, tm);
 	}
 
 	static class TestTileLoader extends TileLoader {
diff --git a/src/org/oscim/layers/tile/TileLayer.java b/src/org/oscim/layers/tile/TileLayer.java
index 9e89cb05..2c143d50 100644
--- a/src/org/oscim/layers/tile/TileLayer.java
+++ b/src/org/oscim/layers/tile/TileLayer.java
@@ -20,7 +20,7 @@ import org.oscim.core.MapPosition;
 import org.oscim.layers.Layer;
 import org.oscim.view.MapView;
 
-public class TileLayer<T extends TileLoader> extends Layer {
+public abstract class TileLayer<T extends TileLoader> extends Layer {
 	//private final static String TAG = TileLayer.class.getName();
 
 	private boolean mClearMap = true;
@@ -32,7 +32,7 @@ public class TileLayer<T extends TileLoader> extends Layer {
 	protected final int mNumTileLoader = 4;
 	protected final ArrayList<T> mTileLoader;
 
-	public TileLayer(MapView mapView, TileLoader.Factory<T> factory) {
+	public TileLayer(MapView mapView) {
 		super(mapView);
 
 		// TileManager responsible for adding visible tiles
@@ -44,7 +44,7 @@ public class TileLayer<T extends TileLoader> extends Layer {
 		// Instantiate TileLoader threads
 		mTileLoader = new ArrayList<T>();
 		for (int i = 0; i < mNumTileLoader; i++) {
-			T tileGenerator = factory.create(mJobQueue, mTileManager);
+			T tileGenerator = createLoader(mJobQueue, mTileManager);
 			mTileLoader.add(tileGenerator);
 			tileGenerator.start();
 		}
@@ -54,6 +54,8 @@ public class TileLayer<T extends TileLoader> extends Layer {
 		mLayer = new TileRenderLayer(mapView, mTileManager);
 	}
 
+	abstract protected T createLoader(JobQueue q, TileManager tm);
+
 	public TileRenderLayer getTileLayer() {
 		return (TileRenderLayer) mLayer;
 	}