android 获取 IP 地址

public class NetworkHelper {
    private static final String TAG = "NetworkHelper";
    private Context context;

    public NetworkHelper(Context context) {
      this.context = context;
    }

    // 获取ip地址
    @RequiresApi(api = Build.VERSION_CODES.M)
    public String getLocalIpAddress() {
//        ConnectivityManager netManager = (ConnectivityManager) getApplicationContext().getSystemService(CONNECTIVITY_SERVICE);
      ConnectivityManager netManager = (ConnectivityManager) context.getApplicationContext().getSystemService(CONNECTIVITY_SERVICE);
//        NetworkInfo info = netManager.getActiveNetworkInfo();

//        // 网络是否连接
//        if (info != null && info.isConnected()) {
//            // wifi类型
//            if (info.getType() == TYPE_WIFI) {
//                return getWifiIpAddress();
//            } else {
//                // 其他类型
//                return getEthIpAddress();
//            }
//        }

      try {
	  NetworkInfo info = netManager.getActiveNetworkInfo();
	  if (info != null && info.isConnected()) {
	      // 3/4g网络
	      if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
		  return getEthIpAddress();
	      } else if (info.getType() == ConnectivityManager.TYPE_WIFI) {
		  return getWifiIpAddress(context);
	      } else if (info.getType() == ConnectivityManager.TYPE_ETHERNET) {
		  // 以太网有限网络
		  return getEthIpAddress(); // 局域网地址
//                    return getGlobalIPAddress(); // 外网地址
	      }
	  }
      } catch (Exception e) {
	  return "";
      }

      return "0.0.0.0";
    }

    // 获取wifi的ip地址
    private String getWifiIpAddress(Context context) {
//        WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
      WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(WIFI_SERVICE);
      WifiInfo wifiInfo = wifiManager.getConnectionInfo();

      // 获取32位整型IP地址
      int ipAddress = wifiInfo.getIpAddress();

      //返回整型地址转换成“*.*.*.*”地址
      return String.format("%d.%d.%d.%d",
	      (ipAddress & 0xff), (ipAddress >> 8 & 0xff),
	      (ipAddress >> 16 & 0xff), (ipAddress >> 24 & 0xff));
    }

    // 获取有线网络的ip4地址
    private String getEthIpAddress() {
      String infaceName = "eth0";
      String ip = "0.0.0.0";
      try {
	  Enumeration<NetworkInterface> netInterface = NetworkInterface.getNetworkInterfaces();
	  while (netInterface.hasMoreElements()) {
	      NetworkInterface inface = netInterface.nextElement();
	      if (!inface.isUp()) {
		  continue;
	      }

	      // eth0 有线网络判断
	      if (!infaceName.equals(inface.getDisplayName())) {
		  continue;
	      }

	      Enumeration<InetAddress> netAddressList = inface.getInetAddresses();
	      while (netAddressList.hasMoreElements()) {
		  InetAddress inetAddress = netAddressList.nextElement();
		  // 获取IP4地址
		  if (inetAddress instanceof Inet4Address) {
		      return inetAddress.getHostAddress();
		  }
	      }
	  }
      } catch (Exception e) {
	  DLog.d(TAG, Log.getStackTraceString(e));
      }
      return ip;
    }

    /**
     * 获取外网ip地址（非本地局域网地址）的方法
     */
    public static String getGlobalIPAddress() {
      String ipAddress = "";
      try {
	  String address = "http://ip.taobao.com/service/getIpInfo2.php?ip=myip";
	  URL url = new URL(address);

	  HttpURLConnection connection = (HttpURLConnection) url
		  .openConnection();
	  connection.setUseCaches(false);
	  connection.setRequestMethod("GET");
	  connection.setRequestProperty("user-agent",
		  "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.7 Safari/537.36"); //设置浏览器ua 保证不出现503

	  if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
	      InputStream in = connection.getInputStream();
	      // 将流转化为字符串
	      BufferedReader reader = new BufferedReader(
		      new InputStreamReader(in));

	      String tmpString;
	      StringBuilder retJSON = new StringBuilder();
	      while ((tmpString = reader.readLine()) != null) {
		  retJSON.append(tmpString + "\n");
	      }

	      JSONObject jsonObject = new JSONObject(retJSON.toString());
	      String code = jsonObject.getString("code");

	      Log.e(TAG, "提示：" +retJSON.toString());
	      if (code.equals("0")) {
		  JSONObject data = jsonObject.getJSONObject("data");
		  ipAddress = data.getString("ip")/* + "(" + data.getString("country")
			  + data.getString("area") + "区"
			  + data.getString("region") + data.getString("city")
			  + data.getString("isp") + ")"*/;

		  Log.e(TAG, "您的IP地址是：" + ipAddress);
	      } else {
		  Log.e(TAG, "IP接口异常，无法获取IP地址！");
	      }
	  } else {
	      Log.e(TAG, "网络连接异常，无法获取IP地址！");
	  }
      } catch (Exception e) {
	  Log.e(TAG, "获取IP地址时出现异常，异常信息是：" + e.toString());
      }
      return ipAddress;
    }

}

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />