Check the internet connectivity

[dmitriy-chernysh]

Like this https://github.com/philipplackner/InternetConnectionObserver/tree/master

class AndroidConnectivityObserver(
    private val context: Context
): ConnectivityObserver {

    private val connectivityManager = context.getSystemService<ConnectivityManager>()!!

    override val isConnected: Flow<Boolean>
        get() = callbackFlow {
            val callback = object : NetworkCallback() {
                override fun onCapabilitiesChanged(
                    network: Network,
                    networkCapabilities: NetworkCapabilities
                ) {
                    super.onCapabilitiesChanged(network, networkCapabilities)
                    val connected = networkCapabilities.hasCapability(
                        NetworkCapabilities.NET_CAPABILITY_VALIDATED
                    )
                    trySend(connected)
                }

                override fun onUnavailable() {
                    super.onUnavailable()
                    trySend(false)
                }

                override fun onLost(network: Network) {
                    super.onLost(network)
                    trySend(false)
                }

                override fun onAvailable(network: Network) {
                    super.onAvailable(network)
                    trySend(true)
                }
            }

            connectivityManager.registerDefaultNetworkCallback(callback)

            awaitClose {
                connectivityManager.unregisterNetworkCallback(callback)
            }
        }
}