NoConnectionInterceptor.kt

class NoConnectionInterceptor(private val context: Context) : Interceptor {
    override fun intercept(chain: Interceptor.Chain): Response {
        return if (!isConnectionOn()) {
            throw Exception("CELULAR CONECTADO")
        } else if (!isInternetAvailable()) {
            throw  Exception("MAS SEM INTERNET")
        } else {
            Log.e(">>>> ", "Deu Bom")
            chain.proceed(chain.request())
        }
    }

    private fun isInternetAvailable(): Boolean {
        return try {
            val timeoutMs = 1500
            val sock = Socket()
            val sockaddr = InetSocketAddress("8.8.8.8", 53)

            sock.connect(sockaddr, timeoutMs)
            sock.close()

            true
        } catch (e: IOException) {
            false
        }
    }

    private fun isConnectionOn(): Boolean {
        val connectivityManager =
                context.getSystemService(Context.CONNECTIVITY_SERVICE) as
                        ConnectivityManager

        return if (android.os.Build.VERSION.SDK_INT >=
                android.os.Build.VERSION_CODES.M) {
            postAndroidMInternetCheck(connectivityManager)
        } else {
            preAndroidMInternetCheck(connectivityManager)
        }
    }

    private fun preAndroidMInternetCheck(
            connectivityManager: ConnectivityManager): Boolean {
        val activeNetwork = connectivityManager.activeNetworkInfo
        if (activeNetwork != null) {
            return (activeNetwork.type == ConnectivityManager.TYPE_WIFI ||
                    activeNetwork.type == ConnectivityManager.TYPE_MOBILE)
        }
        return false
    }

    @TargetApi(23)
    private fun postAndroidMInternetCheck(
            connectivityManager: ConnectivityManager): Boolean {
        val network = connectivityManager.activeNetwork
        val connection =
                connectivityManager.getNetworkCapabilities(network)

        return connection != null && (
                connection.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) ||
                        connection.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR))
    }
}