Android 获取以太网Mac地址和IP地址

MAC：

private void setEthernetMac() {
		BufferedReader reader = null;
		String ethernetMac = getResources()
				.getString(R.string.text_default_mac);
		try {
			reader = new BufferedReader(new FileReader(
					"sys/class/net/eth0/address"));
			ethernetMac = reader.readLine();
			Log.v(TAG, "ethernetMac: " + ethernetMac);
			if (ethernetMac == null || ethernetMac.trim().length() == 0) {
				ethernetMac = getResources().getString(
						R.string.text_default_mac);
				textMac.setTextColor(Color.parseColor("#ff0000"));
			} else {
				ethernetMac = ethernetMac
						+ getResources().getString(R.string.text_normal);
				textMac.setTextColor(Color.parseColor("#00ff00"));
			}
			textMac.setText(ethernetMac);
		} catch (Exception e) {
			Log.e(TAG, "open sys/class/net/eth0/address failed : " + e);
		} finally {
			try {
				if (reader != null)
					reader.close();
			} catch (IOException e) {
				Log.e(TAG, "close sys/class/net/eth0/address failed : " + e);
			}
		}

	}

IP：

private String getEthernetIp() {
		String mEthIpAddress;

		if (!isUsingStaticIp()) {

			EthernetManager mEthManager = (EthernetManager) getSystemService(Context.ETHERNET_SERVICE);

			String tempIpInfo;
			String iface = mEthManager.getEthernetIfaceName();

			tempIpInfo = SystemProperties.get("dhcp." + iface + ".ipaddress");
			if ((tempIpInfo != null) && (!tempIpInfo.equals(""))) {
				mEthIpAddress = tempIpInfo;
			} else {
				mEthIpAddress = getResources().getString(
						R.string.text_default_ip);
			}
			return mEthIpAddress;

		} else {
			return Settings.System.getString(getContentResolver(),
					Settings.System.ETHERNET_STATIC_IP);
		}
	}

	private boolean isUsingStaticIp() {
		return Settings.System.getInt(getContentResolver(),
				Settings.System.ETHERNET_USE_STATIC_IP, 0) == 1 ? true : false;
	}