ConnectivityManager.getActiveNetworkInfo() / NetworkInfo is deprecated in API 29. What's an alternative?

问题

Seem like whole NetworkInfo is deprecated on API 29.

So I am looking for an alternative to check if the network is connected. E.g. alternative to

connectivityManager.activeNetworkInfo?.isConnected == true

Sidenote: I know there is a callback now, but I'd like to get this info synchronously. Also, of course I'm aware that it may not be a precise info though I'd like to have it.

回答1:

The solution is this:

val capability = connectivityManager.getNetworkCapabilities(connectivityManager.activeNetwork)
return capability?.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET) ?: false

回答2:

This is working on API 29:

connectivityManager.isDefaultNetworkActive

回答3:

android.net.NetworkInfo

This class was deprecated in API level 29. You should instead use the ConnectivityManager.NetworkCallback API to know about connectivity changes

Referrence Link https://developer.android.com/reference/android/net/NetworkInfo.html

ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkRequest.Builder builder = new NetworkRequest.Builder();

connectivityManager.registerNetworkCallback(
                    builder.build(),
                    new ConnectivityManager.NetworkCallback() {

                        @Override
                        public void onAvailable(Network network) {
                            // Network Available
                        }


                        @Override
                        public void onLost(Network network) {
                            // Network Not Available
                        }
                    }
            );

回答4:

The solution is

public void registerNetworkCallback()
{
    try {
        ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkRequest.Builder builder = new NetworkRequest.Builder();

        connectivityManager.registerNetworkCallback(builder.build(),new ConnectivityManager.NetworkCallback() {
                    @Override
                    public void onAvailable(Network network) {
                        Variables.isNetworkConnected = true; // Global Static Variable
                    }
                    @Override
                    public void onLost(Network network) {
                        Variables.isNetworkConnected = false; // Global Static Variable
                    }
                }

        );
        Variables.isNetworkConnected = false;
    }catch (Exception e){
        Variables.isNetworkConnected = false;
    }
}

Check full code here : Gist

回答5:

private boolean checkInternetConnection(Activity activity) {
    ConnectivityManager connectivityManager = (ConnectivityManager) activity.getSystemService(Context.CONNECTIVITY_SERVICE);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        Network network = null;
        if (connectivityManager == null) {
            return false;
        } else {
            network = connectivityManager.getActiveNetwork();
            NetworkCapabilities networkCapabilities = connectivityManager.getNetworkCapabilities(network);
            if (networkCapabilities == null) {
                return false;
            }
            if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) ||
                    networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
                return true;
            }
        }
    } else {
        if (connectivityManager == null) {
            return false;
        }
        if (connectivityManager.getActiveNetworkInfo() == null) {
            return false;
        }
        return connectivityManager.getActiveNetworkInfo().isConnected();
    }
    return false;
}

来源：https://stackoverflow.com/questions/56984016/connectivitymanager-getactivenetworkinfo-networkinfo-is-deprecated-in-api-29

标签

android

android-connectivitymanager