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