Android Maps v2 custom marker has incorrect position on zoom

Question

I know this has been discussed before, but I actually can't find a solution.

I am adding a custom icon for my marker:

markerUserLocation = mMap.addMarker(new
                        MarkerOptions().position(new
                                LatLng(point.latitude,
                                        point.longitude))
                                .anchor(0.5f, 1.0f)
                               .icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_marker_my_location)));

The problem is when zooming in/out the marker gets positioned in a bad place.

I have tried to play with the anchor values, but no success. Isn't the default anchor mid/bottom of the image ? What i need to do, to actually keep the bottom of the marker at the specified point coordinates, independent of zooming level ?

Here is a ic_marker_my_location icon sample (xhdpi size), as I can't upload the original icon. enter image description here

LE: this is a really silly, but if i use a smaller marker image... it works correctly... So maybe there is a bug with marker resource image size ? Or if the image is bigger, I need to set some extra parameters ?

Can you add your ic_marker_my_location.png file to this question? — MaciejGórski, Jun 27 '13 at 08:34
I am using Open Street Maps and I am experiencing the same problem, earlier the application showed me the correct current location but now it shows like 10km ahead! — TharakaNirmana, Jun 27 '13 at 08:56
On what device are you seeing this ? Did you test with different devices ? — ddewaele, Jun 27 '13 at 09:35

Mike T · Answer 1 · 2016-05-23T13:31:55.727

6

I recently experienced a similar issue. It seems to me that there is a bug with the setIcon(Bitmap bitmap) function of the marker.

As soon as i change the image of the marker, the anchor is messed up, so I had to reset it again to the default position.

marker.setIcon(bitmap);
marker.setAnchor(0.5f,1f);

That worked for me using the play services (8.4.0)

edited May 23 '16 at 13:31

answered May 23 '16 at 07:25

Mike T

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Thank you! I started to have same issue since a few days ago and I had no idea of the problem. You saved my life! – Ton May 23 '16 at 17:22
Yes yes yes and a thousands time yes! – David Corsalini Jul 05 '16 at 09:45
This hasn't fixed my issue, the icon is still displayed incorrectly on different zoom levels. – Mark O'Sullivan Oct 14 '16 at 13:55

score 0 · Answer 2 · answered Jun 27 '13 at 11:37

0

May be you are actually passing the float values for latitude and longitude. Please pass in the double values like this..

private double lat = 13.005039;
private double lng = 77.57734;


mMap.addMarker(new MarkerOptions().position(new LatLng(lat, lng));

answered Jun 27 '13 at 11:37

suresh cheemalamudi

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score 0 · Accepted Answer · answered Jun 27 '13 at 13:05

0

I managed to fix the issue by making a new marker png. Basically made a new png of the same size and recreated the image... and now it works. So I have no idea what really happened, maybe the map control didn't like some margins or something.

answered Jun 27 '13 at 13:05

Alin

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score 0 · Answer 4 · answered Oct 17 '16 at 08:30

I had the same issue, however the anchor solution posted by Mike T didn't work for me.

What worked for me was converting my original image into a vector (svg). This stopped my custom marker from moving on the map whenever I zoomed into or out from the map.

score -1 · Answer 5 · answered Jun 27 '13 at 11:41

used this code

// Creating a marker
                MarkerOptions markerOptions = new MarkerOptions();

                // Getting a place from the places list
                HashMap<String, String> hmPlace = list.get(i);

                // Getting latitude of the place
                double lat = Double.parseDouble(hmPlace.get("lat"));                

                // Getting longitude of the place
                double lng = Double.parseDouble(hmPlace.get("lng"));

                // Getting name
                String name = hmPlace.get("place_name");

                // Getting vicinity
                String vicinity = hmPlace.get("vicinity");

                LatLng latLng = new LatLng(lat, lng);

                // Setting the position for the marker
                markerOptions.position(latLng);

                // Setting the title for the marker. 
                //This will be displayed on taping the marker
                markerOptions.title(name);
                markerOptions.snippet(vicinity);

                // Placing a marker on the touched position
                mGoogleMap.addMarker(markerOptions);

Android Maps v2 custom marker has incorrect position on zoom

5 Answers5

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