Adding support for KmlLayer without relying on MapEffect

[br00]

As developer I would like to be able to add different layers (Kml, GeoJson, etc) to the GoogleMap composable.

A KmlLayer needs a GoogleMap instance to be built. KmlLayer(GoogleMap map, int resourceId, Context context) At the moment the only way to add a Kml layer is using the experimental MapEffect (which it may get removed in the future).

Loading a KmlLayer is also slow so it needs to be done in a background thread.

Considering all of the above I came up with a solution but it would be nice to have a different way to do it.
This solution will not work anymore if MapEffect is removed.

val scope = rememberCoroutineScope()
val context = LocalContext.current
val aKmlLayer: KmlLayer? = null
GoogleMap(
    ...
) {
    MapEffect { gMap ->
        scope.launch {
            withContext(Dispatchers.IO) {
                aKmlLayer = KmlLayer(gMap, R.raw.kml_file, context)
                withContext(Dispatchers.Main) {
                    aKmlLayer?.addLayerToMap()
                }
            }
        }
    }
}

[wangela]

If you would like to upvote the priority of this issue, please comment below or react on the original post above with :+1: so we can see what is popular when we triage.

@br00 Thank you for opening this issue. 🙏 Please check out these other resources that might help you get to a resolution in the meantime:

• Check the issue tracker - bugs and feature requests for Google Maps Platform APIs and SDKs
• Open a support case - Get 1:1 support in Cloud Console.
• Discord - chat with other developers
• StackOverflow - use the google-maps tag

This is an automated message, feel free to ignore.

[AwaisKhan128]

There is another issue of using MapEffect. It blocks the onClick functionality of polygon, polyline and circles. Anyone has any solution? @br00 man