How to use from XML? about mapview HOT 1 CLOSED

public MapView(Context context){
    super(context);
    setup();
}
public MapView(Context context, AttributeSet attrs) {
    super(context, attrs);
    setup();
}

public MapView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    setup();
}

private void setup(){
    zoomManager = new ZoomManager();
    touchLayer = new TouchLayer(context);
    touchLayer.setGestureListener(touchLayerListener);
    addView(touchLayer);        
    tileLayer = new TileLayer(context);
    touchLayer.addLayer(tileLayer);     
    pathLayer = new PathLayer(context);
    touchLayer.addLayer(pathLayer);     
    markerLayer = new MarkerLayer(context);
    touchLayer.addLayer(markerLayer);
    requestUpdate();
}