Simple network tracker. #network_connection

InternetConnectionTracker.kt

object InternetConnectionTracker : LiveData<Boolean>() {
    private val manager: ConnectivityManager by lazy {
        Injector.get().appContext()
            .getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
    }
    private val netCallback = object : ConnectivityManager.NetworkCallback() {

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

        override fun onLost(network: Network) {
            if (manager.allNetworks.isEmpty()) {
                postValue(false)
            }
            super.onLost(network)
        }
    }

    override fun onActive() {
        val networkRequest = NetworkRequest.Builder()
            .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
            .build()
        manager.registerNetworkCallback(networkRequest, netCallback)
    }

    override fun onInactive() {
        manager.unregisterNetworkCallback(netCallback)
    }

}