Getting a working mobile-SDK key from 2GIS turned out to require a
sales-mediated B2B process (Platform Manager subscription, demo keys
explicitly excluded from mobile SDK use per their own docs), not a
quick self-serve signup. Swapped to osmdroid instead: free, no API
key or account, works immediately.
CityMapView (replacing DgisMapView/DgisSdkProvider) wraps osmdroid's
View-based MapView via AndroidView, forwarding lifecycle events, with
markers for the user's location and each nearby place. Configured
required OSM tile-usage-policy user agent + app-private tile cache in
GuideCityApp. Removed the now-unused DGIS_API_KEY plumbing and the
arm64-only ABI filter (osmdroid has no heavy native libs, so it's not
needed) — APK is back down to ~19.6MB from ~69MB.
Verified: testDebugUnitTest passes, assembleDebug produces a working
APK, sent via the Telegram bot (previously blocked by its 50MB limit
with the 2GIS build).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Added the actual ru.dgis.sdk:sdk-map + compose-map dependencies (from
https://artifactory.2gis.dev/sdk-maven-release) instead of the Canvas
placeholder guess. Verified the exact API surface by downloading the
AARs directly and inspecting classes with javap (DGis.initialize,
MapOptions, MapComposableState/MapComposable, CameraPosition/GeoPoint)
rather than relying on possibly-stale docs.
DgisSdkProvider lazily calls DGis.initialize() once per process,
catching failure so a missing key doesn't crash the app; DgisMapView
renders the real MapComposable when that succeeds, falling back to
the old placeholder canvas otherwise.
Important finding: the existing DGIS_API_KEY (2GIS's public REST/JS
API key format) does NOT work with this native SDK. It requires a
separate dgissdk.key file issued per-app-package from dev.2gis.com,
placed in app/src/main/assets/ (gitignored). Documented in README.
Without it the app still runs fine on the placeholder map.
Also restricted ndk.abiFilters to arm64-v8a — the SDK's native libs
otherwise balloon the APK from ~19MB to ~190MB.
Verified: testDebugUnitTest passes, assembleDebug produces a working
(arm64-only, ~69MB) APK. Not runtime-verified against a real map key
or device — no emulator/device available in this environment.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Set up git repo with .gitignore and README describing the planned
backend (FastAPI + PostGIS) and Android (Kotlin/Compose) architecture.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
