Live Network Status

Monitor network connectivity changes in real-time using ConnectivityManager and NetworkCallback.

Get ConnectivityManager

val networkManager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager

Create Network Callback

val networkCallback = object : ConnectivityManager.NetworkCallback() {
    override fun onAvailable(network: Network) {
        super.onAvailable(network)
        _networkStatus.value = true
    }

    override fun onLost(network: Network) {
        super.onLost(network)
        _networkStatus.value = false
    }

    override fun onCapabilitiesChanged(
        network: Network,
        networkCapabilities: NetworkCapabilities
    ) {
        super.onCapabilitiesChanged(network, networkCapabilities)
        // Detect network speed, connection type when network is available
    }
}

Note: onCapabilitiesChanged() detects network speed and connection type only when network is available, not when lost.

Easy way to make it work

just use the default capability options

connectivityManager.registerDefaultNetworkCallback(networkCallback)

Build Network Request

val networkRequest = NetworkRequest.Builder()
    .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
    .addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED)
    .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
    .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)
    .addTransportType(NetworkCapabilities.TRANSPORT_ETHERNET)
    .build()

Register Callback

networkManager.registerNetworkCallback(networkRequest, networkCallback)

Network Capabilities

Common options for NetworkCapabilities:

• NET_CAPABILITY_INTERNET - Network is intended to provide internet access (works in local-only networks)
• NET_CAPABILITY_VALIDATED - System successfully verified internet connectivity (e.g., pinged a server)
• NET_CAPABILITY_NOT_RESTRICTED - Network is not restricted (excludes non-standard network environments)

Transport Types

• TRANSPORT_WIFI - Monitor WiFi connections
• TRANSPORT_CELLULAR - Monitor mobile data connections
• TRANSPORT_ETHERNET - Monitor ethernet connections