Clear all the markers, except the selected one

Question

Is it possible to clear all the google maps markers EXCEPT the selected one (the one displaying an info window), and keep its info window open?

I'm using this code to refresh my map, it is clearing all the markers and add new ones according to where the camera is :

            googleMap.clear();
            // Save all the marker which will be kept on a new list, remove the others

            for (int j = 0; j < markers.size(); j++) {
                googleMap.addMarker(markers.get(j));
            }

But as the info windows are clickable and on click open a new fragment, I want the selected marker to be spared from this clear(), so the marker and its info window don't disappear. I would like to achieve this by using the method provided in the google map object rather than loop on a list of markers, which can take a lot of time.

Thanks.

Yes. But removing every marker one by one would be a bit too messy. I am rather questioning about a possible googleMap method to do that directly — Virthuss, Jan 20 '16 at 04:33
I think that removing each Marker individually is the only solution here. You already have the list, so it should be easy to implement. — Daniel Nugent, Jan 20 '16 at 04:35
Arf... I will see if someone has a solution for that, otherwise I'll do so, thanks. — Virthuss, Jan 20 '16 at 04:36

score 1 · Answer 1 · answered Jan 20 '16 at 07:44

1

I guess, you should use, map.clear() to remove all markers from the map. And then as per the @Hiren commented, you can add a marker which you wanted to preserve. This will be little faster that what you're expecting.

Marker markerName = map.addMarker(new MarkerOptions().position(latLng).title("Title"));

_{Note: map.clear(); will also remove Polylines, Circles etc.}

answered Jan 20 '16 at 07:44

Hemang

26,840
19
119
186

Yes. It will close it. – Hemang Jan 20 '16 at 08:39
I want to keep it open – Virthuss Jan 20 '16 at 08:42
@Virthuss, yes it can be open again, just check this [answer](http://stackoverflow.com/a/15899827/1603234). – Hemang Jan 20 '16 at 08:43
Thanks, I'm gonna try this one. I'll upvote your answer as well. – Virthuss Jan 20 '16 at 08:48

score 0 · Answer 2 · answered Jan 20 '16 at 07:33

0

Can you please try this one ?

Marker markerName = map.addMarker(new MarkerOptions().position(latLng).title("Title"));

Whenever you want to remove it, you can call

markerName.remove();

If you have multiple data then work with for loop and remove all except your selected marker.

Hope this will make sense.

answered Jan 20 '16 at 07:33

Hiren Patel

52,124
21
173
151

Hi Hiren, it does sense yes, I was think about using it. However I was more preciesly looking for a way to achieve this using the method provided in my google map object, for more clarity – Virthuss Jan 20 '16 at 07:35
@Virthuss, okay please try it – Hiren Patel Jan 20 '16 at 07:35
I already implemented it, it works. But looping like this on a set of markers have bad performances. Thats why I'm looking for another way – Virthuss Jan 20 '16 at 07:37

Clear all the markers, except the selected one

2 Answers2