Getting IP address of the device in Android

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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.

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  1. it gives 0.0.0.0 please give correct solution.

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