未连接 Wi-Fi 时的内部 IP 地址

Question

我在连接到 Wi-Fi 时使用它来获取内部 IP：

            WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
            WifiInfo wifiInfo = wifiManager.getConnectionInfo();

            int ipv4intAddress = wifiInfo.getIpAddress();
            tempView = (TextView) findViewById(R.id.textViewIPv4Int2);
            tempView.setText(myNetworkOperations.iptoDecimal(ipv4intAddress));

在使用移动设备或其他类型的连接时，是否有类似的简单方法来获取该 IP？

Answer 1

你可以试试这段代码：

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()) {
                return inetAddress.getHostAddress().toString();
            }
        }
    }
} catch (SocketException ex) {
    return "ERROR Obtaining IP";
}
return "No IP Available";