獲取移動網絡IP地址

Question

您好，我正在使用此方法獲取移動網絡 IP 地址

public static String getMobileIPAddress() {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress()) {
                    return  addr.getHostAddress();
                }
            }
        }
    } catch (Exception ex) { } // for now eat exceptions

    return "";
}

但返回值似乎不是 IP：fe80::dc19:94ff:fe6f:ae7b%dummy0

Answer 1

其實你的代碼是正確的。 它正在獲取InetAddresses列表，其中ip 地址也存在mac 地址。 您必須使用InetAddressUtils.isIPv4Address或addr instanceof Inet4Address ( API >= 23 ) 來過濾其中的IP 地址。 檢查以下：

public static String getMobileIPAddress() {
    try {
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
            for (InetAddress addr : addrs) {
                if (!addr.isLoopbackAddress() && 
                    addr instanceof Inet4Address) {
                    return  addr.getHostAddress();
                }
            }
        }
    } catch (Exception ex) { } // for now eat exceptions
    return "";
}

Answer 2

此代碼獲取WIFI IP地址：

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