allow shape annotations to layer below labels

[incanus]

Eventually we'll fully open up the layering (collisions, etc.), but in the meantime, for simple, traditional shape annotations, people will want to layer them just below labels for clarity.

Related: #1728

[friedbunny]

This would also be useful for polylines.

[jlansing]

This is definitely something we'd like to do for polylines as well.

[kkaefer]

See also mapbox/mapbox-gl-js#4225

[marcbaldwin]

I'd like to be able to add MGLPolygon below city labels, is there another way of doing it? Perhaps using layers? Any help would be greatly appreciated.

[kkaefer]

@marcbaldwin You can use a GeoJSON source, and use runtime styling to add it. This API allows you to specify the strata at which to insert the data. See https://www.mapbox.com/ios-sdk/api/3.6.0/runtime-styling.html for more documentation on this feature.

[marcbaldwin]

Hey @kkaefer, thanks for your quick reply. Using the MGLPolygonFeature, MGLShapeSource, and MGLFillStyleLayer classes worked great, thanks! :)

[stale]

This issue has been automatically detected as stale because it has not had recent activity and will be archived. Thank you for your contributions.