请问下面一段程序是什么意思？

Question

 Intent intent = getIntent();        if (intent.hasExtra("x") && intent.hasExtra("y")) {             // 当用intent参数时，设置中心点为指定点             Bundle b = intent.getExtras();            LatLng p = new LatLng(b.getDouble("y"), b.getDouble("x"));            mMapView = new MapView(this,                    new BaiduMapOptions().mapStatus(new MapStatus.Builder()                            .target(p).build()));        } else {            mMapView = new MapView(this, new BaiduMapOptions());        }

Answer 1

应该是根据传进来的x,y坐标在百度地图中进行定位