在wifi环境下,可以通过WifiInfo来获取设备的ip
- public String getIpAddress() {
- WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
- WifiInfo wifiInfo = wifiManager.getConnectionInfo();
- int ipAddress = wifiInfo.getIpAddress();
- int[] ipAddr = new int[4];
- ipAddr[0] = ipAddress & 0xFF;
- ipAddr[1] = (ipAddress >> 8) & 0xFF;
- ipAddr[2] = (ipAddress >> 16) & 0xFF;
- ipAddr[3] = (ipAddress >> 24) & 0xFF;
- return new StringBuilder().append(ipAddr[0]).append(".").append(ipAddr[1]).append(".").append(ipAddr[2])
- .append(".").append(ipAddr[3]).append(".").toString();
- }
public String getIpAddress() { WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE); WifiInfo wifiInfo = wifiManager.getConnectionInfo(); int ipAddress = wifiInfo.getIpAddress(); int[] ipAddr = new int[4]; ipAddr[0] = ipAddress & 0xFF; ipAddr[1] = (ipAddress >> 8) & 0xFF; ipAddr[2] = (ipAddress >> 16) & 0xFF; ipAddr[3] = (ipAddress >> 24) & 0xFF; return new StringBuilder().append(ipAddr[0]).append(".").append(ipAddr[1]).append(".").append(ipAddr[2]) .append(".").append(ipAddr[3]).append(".").toString(); }
执行上面的代码需要
- <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
当然也可通过jdk总的NetworkInterface来获取的,就是遍历所有的网络接口,获取到非loopback ip
- public String getLocalIpAddress() {
- try {
- for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
- NetworkInterface intf = en.nextElement();
- for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
- InetAddress inetAddress = enumIpAddr.nextElement();
- if (!inetAddress.isLoopbackAddress()) {
- return inetAddress.getHostAddress().toString();
- }
- }
- }
- } catch (SocketException ex) {
- Log.e("", ex.toString());
- }
- return null;
- }