For one of my project I need to get the IP address of the device, I searched a lot and found this link.
The method is to enumerate all network interfaces and find the IP address if it is not loop-back adapter. This will give the IP address if you are connected to a network (WiFi or Cellular).
You can also use the WifiManger to get he IP address if you are connected to WiFi network. The following code retrieves the WiFi IP address:
WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE); WifiInfo wifiInfo = wifiManager.getConnectionInfo(); int ipAddress = wifiInfo.getIpAddress();
Note that the getIpAddress returns an integer value. To convert to readable format we can use the following code:
String.format("%d.%d.%d.%d", (ipAddress & 0xff), (ipAddress >> 8 & 0xff), (ipAddress >> 16 & 0xff), (ipAddress >> 24 & 0xff))
Note: To use the first method you need the android.permission.INTERNET permission, otherwise it will throw unknown error. For the second method you need android.permission.ACCESS_WIFI_STATE.