[FIXED] Flutter package: How get parent BuildConfig.java class values?

Issue

I'm implementing a flutter package, I'm trying to retrieve values ​​from the Android BuildConfig file of the parent application, is this possible?

I tried code like this:

val packageName = flutterActivity?.packageName
if (packageName != null) {
    val value = Class.forName(packageName + ".BuildConfig").getField("FLAVOR").get(null) as String
    print(value)
} 

But file is not found...

Solution

I resolve my problem by using :

    private var flutterActivity: Activity? = null


    override fun onAttachedToActivity(binding: ActivityPluginBinding) {
        this.flutterActivity = binding.activity
    }

    /// Get The Build Flavor config.
    private fun getFlavor(result: Result) {
        flutterActivity?.let {
            val pack = it.localClassName.split(".").dropLast(1).joinToString(".")
            val flavor =
                Class.forName(pack.plus(".BuildConfig")).getField("FLAVOR").get(null) as String
            result.success(flavor)
        } ?: run {
            result.success(null)
        }
    }

Answered By - Dev Loots
Answer Checked By - Pedro (JavaFixing Volunteer)