如何在Android应用上获取真实IP地址？

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Enumeration;

public class IPAddressUtil {
    private static final String TAG = "IPAddressUtil";

    public static String getIPAddress(Context context) {
        String ipAddress = null;

        try {
            ConnectivityManager connManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo networkInfo = connManager.getActiveNetworkInfo();

            if (networkInfo != null && networkInfo.isConnected()) {
                if (networkInfo.getType() == ConnectivityManager.TYPE_WIFI) {
                    // 获取WiFi网络的IP地址
                    ipAddress = getWifiIPAddress();
                } else if (networkInfo.getType() == ConnectivityManager.TYPE_MOBILE) {
                    // 获取移动网络的IP地址
                    ipAddress = getMobileIPAddress();
                }
            }
        } catch (Exception e) {
            Log.e(TAG, "Failed to get IP address: " + e.getMessage());
        }

        return ipAddress;
    }

    private static String getWifiIPAddress() {
        try {
            Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();

            while (networkInterfaces.hasMoreElements()) {
                NetworkInterface networkInterface = networkInterfaces.nextElement();

                if (networkInterface.getName().equalsIgnoreCase("wlan0")) {
                    Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();

                    while (inetAddresses.hasMoreElements()) {
                        InetAddress inetAddress = inetAddresses.nextElement();

                        if (!inetAddress.isLoopbackAddress() && inetAddress.getAddress().length == 4) {
                            return inetAddress.getHostAddress();
                        }
                    }
                }
            }
        } catch (Exception e) {
            Log.e(TAG, "Failed to get WiFi IP address: " + e.getMessage());
        }

        return null;
    }

    private static String getMobileIPAddress() {
        try {
            Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();

            while (networkInterfaces.hasMoreElements()) {
                NetworkInterface networkInterface = networkInterfaces.nextElement();

                if (networkInterface.getName().equalsIgnoreCase("rmnet0")) {
                    Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();

                    while (inetAddresses.hasMoreElements()) {
                        InetAddress inetAddress = inetAddresses.nextElement();

                        if (!inetAddress.isLoopbackAddress() && inetAddress.getAddress().length == 4) {
                            return inetAddress.getHostAddress();
                        }
                    }
                }
            }
        } catch (Exception e) {
            Log.e(TAG, "Failed to get mobile IP address: " + e.getMessage());
        }

        return null;
    }
}