问如何在标记添加到android google map api中的google地图后向标记添加标题

EN

marker.hideInfoWindow();
marker.showInfoWindow();

 GoogleMap map = ... // get a map.
 // Add a marker at San Francisco.
 Marker marker = map.addMarker(new MarkerOptions()
 .position(new LatLng(37.7750, 122.4183))
 .title("San Francisco")
 .snippet("Population: 776733"));

 marker.setTitle("MY MARKER'S NEW TITLE")

 marker = mMap.addMarker(new MarkerOptions()
                .position(latLng)
                .title("Perth")
                .flat(true));
         .snippet("Population: 1,738,800"));