App working but functions seems blocked

Agge · October 15, 2025, 6:52am

Using a swedish app for maps
Min karta

The apps starts but I cannot change map layers.
I dont get any errors, layers just dont change.

Any ideas?

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tcecyk · October 15, 2025, 12:57pm

as I’ve seen this often[1][2] in playstore Apps that use layers

D TileOverlay: Not yet implemented: remove
D GmsMap  : unimplemented Method: addTileOverlay

microg doesn’t implement addTileOverlay and I wonder if the reason is really technical / effort required. There’s not much discussion on it on microgs tracker

Ahappo · October 15, 2025, 3:03pm

I quess the same problem exists on finish weather app (ilmatieteen laitos) and governmental app for hunters (Oma riista). The maps are visible but map layers wont work/show any information.

tcecyk · October 28, 2025, 4:32pm

I did ask in an adjacent topic (on polylines) about addTileOverlay and depau was as kind to give more background on why it isn’t straightforward to translate tiles between the gmaps api and maplibre - and an idea how to do it anyway:

github.com/microg/GmsCore

Comment by depau - mapbox: Implement Z-index and polyline spans handling

master ← depau-forks:feature/mapbox-polyline-spans

> Tile overlays are basically impossible to add, Someone asked me over email …why this is the case. As I was gathering the info to provide an answer I actually found a potential hacky way to implement it. Maybe next month if I have some time I can play with the idea. This is my response I gave the person, for whoever may be interested: > [...] > > I'm not sure whether the docs I'm providing are for the exact corresponding version of MapLibre but they still give an idea of how things work. > > The way you add overlays in MapLibre/MapBox is by adding layers; the relevant layer is the RasterLayer, which can load images from various sources. However, the source can either be a bunch of static files you provide ahead of time, or a web server that serves imagery over HTTP. > > On the other hand a Google Maps v2 API tile provider is a very simple class that implements a method that must return a tile given x+y+zoom. > > A few links: > > - https://docs.mapbox.com/android/maps/api/9.5.1/ > - https://docs.mapbox.com/android/maps/guides/styles/work-with-layers/ > - https://docs.mapbox.com/style-spec/reference/sources/ > - https://developers.google.com/android/reference/com/google/android/gms/maps/model/TileProvider > > The reason why I think it might be possible is because I found out you can actually implement your own HTTP transport for HTTP tiles. So it may be possible to implement a custom HTTP transport that, when requesting images from an unlikely domain name, forges a response by calling the GMaps TileProvider locally, while forwarding the request to a proper HTTP client otherwise. > > https://github.com/maplibre/maplibre-native/blob/main/platform/android/MapLibreAndroidTestApp/src/main/java/org/maplibre/android/testapp/utils/ExampleHttpRequestImpl.kt

czarny1975 · November 1, 2025, 8:04pm

Thank you for digging wherever is possible to find solutions, but the question I have is… Shall we expect for a solution for apps using MapLibre in a predictable future? As I read those threads it seems there’s no much the ordinary user can do.

I have no idea if it’s related to my problem with an app (Mapa Turystyczna) but I feel fixes to MapLibre may help somehow…

tcecyk · November 1, 2025, 8:52pm

the app in this thread fails on a specific method that when addressed in microG, solves the thread.

Your issue is different, addTileOverlay() doesn’t come up at all in the apps logcat. It will load layers, just the ones from mapLibre without the original gmaps source nor styling.

This is different. It doesn’t help to mix the threads just because they’re related to gmaps API and its surrogate mapLibre eventually.

As to expecting solutions - if it’s unimplemented methods, you want to campaign at best with a full logcat at microg issues, in this forum no dev will ever check. I do some triaging, but that’s it