Android获取MAC地址-getNetworkInterfaces

Posted 2021-10-05 黄毛火烧雪下

   /*获取ip-address*/
    fun getPhoneIp(): String {
        try {
            val en = NetworkInterface.getNetworkInterfaces()
            while (en?.hasMoreElements() == true) {
                val intf = en.nextElement()
                val enumIpAddr = intf.inetAddresses
                while (enumIpAddr.hasMoreElements()) {
                    val inetAddress = enumIpAddr.nextElement()
                    if (!inetAddress.isLoopbackAddress && inetAddress is Inet4Address) {
                        return inetAddress.getHostAddress().toString()
                    }
                }
            }
        } catch (ex: Exception) {
            Logger.d("获取ip报错" + ex.printStackTrace())
            return ""
        }
        return ""
    }

 /**
 * 通过网络接口取
 * @return
 */
 private static String getNewMac() {
 try {
  List<NetworkInterface  all = Collections.list(NetworkInterface.getNetworkInterfaces());
  for (NetworkInterface nif : all) {
  if (!nif.getName().equalsIgnoreCase("wlan0")) continue;
  byte[] macBytes = nif.getHardwareAddress();
  if (macBytes == null) {
   return null;
  }
  StringBuilder res1 = new StringBuilder();
  for (byte b : macBytes) {
   res1.append(String.format("%02X:", b));
  }
   if (res1.length()   0) {
   res1.deleteCharAt(res1.length() - 1);
  }
  return res1.toString();
  }
 } catch (Exception ex) {
  ex.printStackTrace();
 }
 return null;
 }

打印输出：WLAN MAC地址 78:36:cc:57:b4:95

注意网络接口的Name有跟多:dummy0、p2p0、wlan0….其中wlan0就是我们需要WiFi mac地址。这个方法android 7.0及其以下版本都可以获取到

建议通过其它方式获取ip