连接到蜂窝网络时获取 Android 的 IP 地址

Question

在通过移动数据网络连接到互联网时，是否有任何简单的方法来获取我的 phone 的 IP 地址。为了获取 WiFi IP 地址，我使用了以下简单的技术。

 WifiManager wm = (WifiManager) getSystemService(WIFI_SERVICE);
String ip = Formatter.formatIpAddress(wm.getConnectionInfo().getIpAddress());

有没有类似上面的方法获取移动数据网络的IP地址

我使用了以下代码，但它 returns MAC 地址，WiFi 和蜂窝网络的 IP 地址，但我只对蜂窝 IP 地址感兴趣。

String ipAddress = null;
                    try {
                        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
                            NetworkInterface intf = en.nextElement();
                            for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                                InetAddress inetAddress = enumIpAddr.nextElement();
                                if (!inetAddress.isLoopbackAddress()) {
                                    ipAddress = inetAddress.getHostAddress().toString();
                                    Log.i("Sarao5",ipAddress);
                                }
                            }
                        }
                    } catch (SocketException ex) {}

Answer 1

在我的应用程序中使用以下代码 -

public static String getDeviceIPAddress(boolean useIPv4) {
    try {
        List<NetworkInterface> networkInterfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface networkInterface : networkInterfaces) {
            List<InetAddress> inetAddresses = Collections.list(networkInterface.getInetAddresses());
            for (InetAddress inetAddress : inetAddresses) {
                if (!inetAddress.isLoopbackAddress()) {
                    String sAddr = inetAddress.getHostAddress().toUpperCase();
                    boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
                    if (useIPv4) {
                        if (isIPv4)
                            return sAddr;
                    } else {
                        if (!isIPv4) {
                            // drop ip6 port suffix
                            int delim = sAddr.indexOf('%');
                            return delim < 0 ? sAddr : sAddr.substring(0, delim);
                        }
                    }
                }
            }
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return "";
}

这是最简单的方法。

希望我的回答对您有所帮助。

Answer 2

应避免使用 Formatter.formatIPAddress，使用以下获取 IP 地址，与您的代码略有不同；它的一项功能是 returns wifi ip 如果它启用了您需要的其他蜂窝功能，您可以根据需要修改它；

    public static String getLocalIpAddress() {
            WifiManager wifiMgr = (WifiManager) ApplicationController.getInstance().getSystemService(context.WIFI_SERVICE);
            if(wifiMgr.isWifiEnabled()) {
                WifiInfo wifiInfo = wifiMgr.getConnectionInfo();
                int ip = wifiInfo.getIpAddress();
                String wifiIpAddress = String.format("%d.%d.%d.%d",
                        (ip & 0xff),
                        (ip >> 8 & 0xff),
                        (ip >> 16 & 0xff),
                        (ip >> 24 & 0xff));

                return wifiIpAddress;
            }

            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {
                NetworkInterface intf = en.nextElement();
                for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                    InetAddress inetAddress = enumIpAddr.nextElement();
                    Log.i("","111 inetAddress.getHostAddress(): "+inetAddress.getHostAddress());
//the condition after && is missing in your snippet, checking instance of inetAddress
                    if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address) {
                        Log.i("","111 return inetAddress.getHostAddress(): "+inetAddress.getHostAddress());
                        return inetAddress.getHostAddress();
                    }

                }
            }

        return null;
    }

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