Map localization is not working according to the device's locale

[rahulpatracropsly]

Environment

• Xcode version: 16.3
• iOS version: 18.5
• Devices affected: All
• Maps SDK Version: 11.6.0

Observed behavior and steps to reproduce

Map labels do not update based on the user's phone locale.

Expected behavior

The Map labels should according to user's phone locale

Notes / preliminary analysis

Attempted to localize the map labels using the following code:
try? mapView.mapboxMap.localizeLabels(into: Locale(identifier: "da"))

Expected the map to display labels in Danish ("da"), but there was no visible change—the labels remained in the default language (English).

Additional links and references

In the screenshot below, the label should be displayed as 'Helsingør' in Danish, but it is shown as 'Elsinore' instead.

[pjleonard37]

Hi @rahulpatracropsly -

Thanks for the report. You are correct that .localizeLabels() does not work for Mapbox Standard (our default style) or Mapbox Standard Satellite. We have an open issue for this here that you can use to follow updates. In short, Mapbox Standard introduced a new basemap approach that changed how layers are handled at runtime. As you've identified, this means that the .localizeLabels() approach to translating map labels does not work for these styles.

If translation using .localizeLabels() is important for your project, I recommend creating a style based on one of our classic styles, such as Mapbox Streets.