android - When can I use GoogleMap.getProjection().getVisibleRegion()?

Question

I have to get GoogleMap.getProjection().getVisibleRegion().latLngBounds

But when app is started, its values are all zero.

I tried to get this at onViewCreated, onActivityCreated and onStart of SupportMapFragment, but it doesn't work. When I can do it? Is there any callback function that notifies when it is ready?Any help would be greatly appreciated.

Answer 1

マップに追加できOnCameraChangeListenerます。