How to clear all the markers in v2 google map?

Question

I need to clear all markers in v2 google map. And again need to add some markers. If anybody knows the answer kindly share your thoughts.

See http://discgolfsoftware.wordpress.com/2012/12/06/hiding-and-showing-on-screen-markers-with-google-maps-android-api-v2/ — ridoy, Jun 19 '13 at 17:44

Karakuri · Answer 1 · 2013-06-19T22:44:51.097

22

You can either use googleMap.clear(), or you can store your Markers in a collection of some kind and remove them in a loop:

private ArrayList<Marker> mMarkers;
...
private void removeMarkers() {
    for (Marker marker: mMarkers) {
        marker.remove();
    }
    mMarkers.clear();
}

edited Jun 19 '13 at 22:44

answered Jun 19 '13 at 17:17

Karakuri

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clear() will do the job. the second solution will remove from the arraylist and then you will have to update your view/refresh i guess – Raghunandan Jun 19 '13 at 18:29
Don't forget to call `mMarkers.clear();` at the end of `removeMarkers` function. – MaciejGórski Jun 19 '13 at 19:41
Raghunandan: marker.remove() removes the marker from the map. MaciejGórski: good catch, updated the code. – Karakuri Jun 19 '13 at 22:44

score 3 · Answer 2 · answered Jun 30 '14 at 04:49

ex - if you want to refresh and load new marker point in the map for a button click(in this ex i get button click),

    switch ( view.getId() ) {
        case R.id.buttonOne:

    //clear googlemap
    googleMap.clear();
    //call to generate new marker
    this.getMarker(lat,lang);
        break;
        }

//to add new marker
public void getMarker ( String lat,String lang ) {

LatLng latLang = new LatLng( lat, lang);
//call to your googlemap implementation method
this.getGoogleMap();
Marker marker = googleMap.addMarker(new MarkerOptions().position(latLang))

}

score 2 · Answer 3 · answered Jun 19 '13 at 18:28

Use Google Map object and call clear to clear the markers.

mMap.clear();

https://developers.google.com/maps/documentation/android/reference/com/google/android/gms/maps/GoogleMap#clear()

Check the docs

public final void clear ()

Removes all markers, polylines, polygons, overlays, etc from the map.

score 1 · Answer 4 · edited Oct 20 '16 at 12:24

just create a method as clearOverlays()

and inside the method

public void clearOverlays(){
        if(mMap!=null){
            mMap.clear();
        }else{
            Log.d("Maps::","mMap is null");
        }
    }

where mMap is

public static GoogleMap mMap;

That mMap will initialize automatically inside the
public void onMapReady(GoogleMap googleMap) method .

There put mMap = googleMap;

Now use the clearOverlays() method wherever you want.

score 0 · Answer 5 · edited May 23 '17 at 12:25

0

I think this would be helpful for you. Take all the markers in a List and refresh the map view whenever you need to replace markers by clearing the object of Google Map and List variable.

edited May 23 '17 at 12:25

Community

1
1

answered Jun 19 '13 at 17:27

score 0 · Answer 6 · answered Sep 22 '18 at 13:36

0

you can use clear() in java and kotlin

java

 googleMap.clear()

kotlin

 googleMap?.clear()

answered Sep 22 '18 at 13:36

Rasoul Miri

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How to clear all the markers in v2 google map?

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