我如何在Android中获得可用的网络列表(GSM/LTE，WiFi等)？

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        List<String> networkList = getAvailableNetworks();
        for (String network : networkList) {
            System.out.println(network);
        }
    }

    private List<String> getAvailableNetworks() {
        List<String> networks = new ArrayList<>();
        ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

        if (cm != null) {
            NetworkInfo[] networkInfos = cm.getAllNetworkInfo();
            for (NetworkInfo info : networkInfos) {
                if (info.getState() == NetworkInfo.State.CONNECTED || info.getState() == NetworkInfo.State.CONNECTING) {
                    networks.add(info.getTypeName());
                }
            }
        }

        return networks;
    }
}