Android Maps API v2: Polyline gets drawn under tile overlay

Question

I'm trying to draw a tile overlay and a poly line to a google map. I would like the poly line to be rendered on top of the tile overlay so it can be seen. Currently it's drawn under the tile overlay and disappears , my code is as follows:

// Draw the tile overlay
NBUrlTileProvider tileProvider = new NBUrlTileProvider(url, 256, 256);

TileOverlayOptions tileOverlayOptions = new TileOverlayOptions()
                    .tileProvider(tileProvider)
                    .fadeIn(true);

mMap.addTileOverlay(tileOverlayOptions);

// Draw the poly line
PolylineOptions polyLineOptions = new PolylineOptions();

polyLineOptions.width(5).geodesic(true).color(Color.rgb(255, 0, 255));

polyLineOptions.add(location1);
polyLineOptions.add(location2);
polyLineOptions.add(location3);

mMap.addPolyline(polyLineOptions);

Any help would be very much appreciated, I thought that poly lines would just get drawn on top of tile overlays by default, is there anything extra I have to add?

Hello, I am new to Tiles and don't know anything about it. can you please tell me what is this "url" stands for (or what url contains) and `NBUrlTileProvider` extends `UrlTileProvider` or `TileProvider` ? — R G, Apr 10 '18 at 09:35

score 21 · Accepted Answer · answered Apr 11 '14 at 07:46

21

Solution was to use:

Polyline polyline = mMap.addPolyline(polyLineOptions);

polyline.setZIndex(1000); //Or some large number :)

answered Apr 11 '14 at 07:46

Gyroscope

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score 2 · Answer 2 · answered Jun 16 '20 at 20:37

You should consider pushing the tiles overlay to the back (I simpyl use -500) instead of pushing the polylines to the front, because they will then be drawn over markers (and cluster markers).

overlay = map.addTileOverlay(new TileOverlayOptions().tileProvider(new MyUrlTileProvider(512, 512, "xxx")).zIndex(-500));

@Gyroscope

Android Maps API v2: Polyline gets drawn under tile overlay

2 Answers2