how to add contentDesctiption to InfoWindow or marker in Android GoogleMaps V2 for TalkBack

Question

I'm working on native Android app which implements the latest GoogleMap API (V2), and I need to make it accessibility complaint (as much as I can).

I can add contentDescription attribute to the mapView and it works fine - TalkBack recognizes it.

However, when I add the same attribute to the layouts of the Marker or InfoWindow, it is just ignored by TalkBack.

Seems like GoogleMap just renders the inflated layout internally to a bitmap and shows this bitmap on the top of the mapview, ignoring contentDescription attribute. As a result, TalkBack doesn't say anything when the corresponding image is clicked.

Anybody has a different experience or knowledge how to add contentDescription to the InfoWindow or Marker with the latest Googlemap ?

Thanks.

I suspect that this is a hole in the Maps V2 API. You might consider filing an issue, as the Maps teams is pretty good about responding to good issues: http://code.google.com/p/gmaps-api-issues/issues/list — CommonsWare, Sep 24 '13 at 19:31
Thanks, I just did that. I still hope that maybe there is a work around that defect... :-) — user1512464, Sep 25 '13 at 20:51

score 4 · Answer 1 · answered Dec 07 '15 at 10:29

4

For marker, i used marker.setTitile() and it worked, still don't know how to make InfoWindow works.

answered Dec 07 '15 at 10:29

Tan Tran

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1
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score 0 · Answer 2 · answered Apr 05 '17 at 13:14

0

What we did in an old project was to programmatically build and announce the content description when we receive the marker clicked callback.

You can check AccessibilityManager, AccessibilityRecordCompat and AccessibilityEvent.

But there is no focus navigation (navigate swiping left-right or right-left) support currently in the SDK for info markers. Focus navigation is very common for blind people to use.

Regards.

answered Apr 05 '17 at 13:14

ArgBat

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did they add any support currently for the focus navigation ? – user987760 May 05 '20 at 13:30

score -1 · Answer 3 · answered May 29 '15 at 02:53

Do you mean design a new info window? You should first write a .xml layout file, then:

map.setInfoWindowAdapter(new InfoWindowAdapter() {
        // Use default InfoWindow frame
        @Override
        public View getInfoWindow(Marker arg0) {
            return null;
        }

        // Defines the contents of the InfoWindow
        @Override
        public View getInfoContents(Marker arg0) {
            String namepic = arg0.getTitle();
            // Getting view from the layout file info_window_layout
            View v = getLayoutInflater()
                    .inflate(R.layout.info_window, null);
            LatLng latLng = arg0.getPosition();
            // Getting the position from the marker

            TextView tvtitle = (TextView) v.findViewById(R.id.tv_title);
            TextView tvLat = (TextView) v.findViewById(R.id.tv_lat);
            TextView tvLng = (TextView) v.findViewById(R.id.tv_lng);
            ImageView myimage = (ImageView) v.findViewById(R.id.my_image);

            tvtitle.setText(arg0.getTitle());
            tvLat.setText("Latitude:" + latLng.latitude);
            tvLng.setText("Longitude:" + latLng.longitude);
            // Returning the view containing InfoWindow contents
            myimage.setImageResource(getResources().getIdentifier(namepic,
                    "drawable", getPackageName()));
            return v;
        }
    });

This is unrelated top the original question. – Nestor Ledon Jan 08 '20 at 21:55 — Nestor Ledon, Jan 08 '20 at 21:55

how to add contentDesctiption to InfoWindow or marker in Android GoogleMaps V2 for TalkBack

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