我需要做到以下几点： 我在地图上的标记，我需要改变它的位置。因此，我试过如下：

I need to do the following: I have a Marker on the map and I need to change the position of it. So I tried the following:

MarkerOptions a = new MarkerOptions()
            .position(new LatLng(50,6)));
        map.addMarker(a);
        a.position(new LatLng(50,5));

其中，地图是一个 GoogleMap的。我想我必须刷新地图或财产以后等于？

where map is a GoogleMap. I think I have to refresh the map or somthing equal?

推荐答案

找到了解决办法，需要做的是这样的：

Found the solution, Need to do it like this:

MarkerOptions a = new MarkerOptions()
    .position(new LatLng(50,6)));
Marker m = map.addMarker(a);
m.setPosition(new LatLng(50,5));