序言
在Android开发中,有很多地方需要使用IP地址,但是有时候Android设备获取的IP地址是有区别的,比如如果Android设备创建一个热点,那此时这个Android设备就有两个IP地址了,一个是本身的IP地址,一个是热点的路由器IP地址,这个获取方式是不一样的。
获取本机IP地址
try {WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);if (wifiManager != null) {WifiInfo wifiInfo = wifiManager.getConnectionInfo();int ipAddress = wifiInfo.getIpAddress();String ipHostAddress = Formatter.formatIpAddress(ipAddress);Log.e(TAG, "本机IP:" + ipHostAddress);}} catch (Exception e) {AgLog.printException(e);}
获取路由器IP地址
try {Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();while (interfaces.hasMoreElements()) {NetworkInterface networkInterface = interfaces.nextElement();Enumeration<InetAddress> addresses = networkInterface.getInetAddresses();while (addresses.hasMoreElements()) {InetAddress address = addresses.nextElement();if (!address.isLoopbackAddress() && !address.isLinkLocalAddress() && address.isSiteLocalAddress()) {// 返回第一个非回环、非链路本地地址ipHostAddress = address.getHostAddress();Log.e(TAG, "本机IP:" + ipHostAddress);break;}}}} catch (Exception e) {AgLog.printException(e);}
另外需要注意,需要先设置权限,再获取IP地址
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /><uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />