Checks for internet connectivity from API 21 and above

NetworkUtilities.kt

object NetworkUtilities {
  fun isInternetConnected(context: Context): Boolean {
    val connectivityManager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            val networkCapabilities =
                connectivityManager.getNetworkCapabilities(connectivityManager.activeNetwork)
            if (networkCapabilities != null &&
                networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET) &&
                networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED)
            ) {
                return true
            } else {
                return false
            }
        } else {
            val networkInfo = connectivityManager.activeNetworkInfo
            if (networkInfo != null && networkInfo.detailedState == NetworkInfo.DetailedState.CONNECTED) {
                return true
            } else {
                return false
            }
        }
    }
}