Google Maps V2 - Android - Get the current zoom level

Question

How do I get the current zoom level as an integer on a GoogleMap. I need to take this code from GMaps v1.1:

MapView mGoogleMapView; 

int zoomLevel = mGoogleMapView.getZoomLevel();

I am aware of the methods getMinZoomLevel() and getMaxZoomLevel() however I can't find anything in the Android GMap V2 documentation that will give the current zoom level. Does anyone have any pointers on how to do this?

Any help would be appreciated.

Apparently this api doesn't exist in current Google Maps.... — IgorGanapolsky, Aug 07 '23 at 18:54

score 235 · Accepted Answer · answered May 03 '13 at 19:51

235

GoogleMap map;

....

float zoom = map.getCameraPosition().zoom;

answered May 03 '13 at 19:51

Pavel Dudka

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This has to be done on UI thread, or you'll get an exception! – IgorGanapolsky Aug 18 '15 at 19:46

ridoy · Answer 2 · 2017-02-03T06:22:54.597

47

I think OnCameraChangeListener will do the trick..

map.setOnCameraChangeListener(new OnCameraChangeListener() {

    private float currentZoom = -1;

    @Override
    public void onCameraChange(CameraPosition position) {
        if (position.zoom != currentZoom){
            currentZoom = position.zoom;  // here you get zoom level
        }
    }
});

Update:

From Google Play service 9.4.0 OnCameraChangeListener has been deprecated and it will no longer work soon.Alternately they are replaced by OnCameraMoveStarted‌Listener,OnCameraMoveListener,OnCameraMoveCancel‌edListener and OnCameraIdleListener.

Hence we can use OnCameraIdleListener here to get camera's current zoom level.

Code Sample:

map.setOnCameraIdleListener(new GoogleMap.OnCameraIdleListener() {
    @Override
    public void onCameraIdle() {
        int zoomLevel = map.getCameraPosition().zoom;
        //use zoomLevel value..
    }
});

edited Feb 03 '17 at 06:22

answered May 03 '13 at 20:14

ridoy

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This method was deprecated. Replaced by setOnCameraMoveStartedListener(GoogleMap.OnCameraMoveStartedListener), setOnCameraMoveListener(GoogleMap.OnCameraMoveListener), setOnCameraMoveCanceledListener(GoogleMap.OnCameraMoveCanceledListener) and setOnCameraIdleListener(GoogleMap.OnCameraIdleListener). – Nasz Njoka Sr. Dec 20 '16 at 15:45
@NaszNjokaSr., thanks for your concern. Updated accordingly. – ridoy Feb 03 '17 at 06:23
Isn't it possible in your updated version, just to use `map.getCameraPosition().zoom` ? Why is the implementation of a listener necessary? And with this `onCameraIdleListener` wouldn't you get the current zoom level only when the camera goes into the idle mode? – Sedat Kilinc Aug 31 '17 at 18:07
and looks like zoom value is a float not an int. – tekin beyaz Jan 10 '19 at 20:35

Google Maps V2 - Android - Get the current zoom level

2 Answers2