FindNetwork.kt

val network: Network? = connectivityManager.allNetworks.find {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        connectivityManager.getNetworkCapabilities(it)
            .hasTransport(NetworkCapabilities.TRANSPORT_WIFI)
    } else {
        connectivityManager.getNetworkInfo(it).extraInfo == wifiSSID
    }
}