参照连接
API:http://developer.baidu.com/map/sdk-android.htm
1、画轨迹:参照工作空间中的例子即可。
2、屏幕坐标转换经纬度
Projection mProjection = BMapView.getProjection();
GeoPoint pt = mProjection.fromPixels((int)touchX,(int)touchY);
3、覆盖:http://blog.csdn.net/toyuexinshangwan/article/details/8147692
4、http://qq361119908.iteye.com/blog/665074
5、鼠标点击事件:http://www.cnblogs.com/fangfang01/archive/2013/03/05/2945050.html