How do I get the wlan0 inet address from kotlin android code?

Question

I want to get the wlan0 inet address through code in Kotlin for my android app. I have tried using WifiManager.connectionInfo.ipAddress, however that returned on both wifi and hotspot. However, if I run ifconfig in termux, an IP exists. I also tried using InetAddress class but that doesn't seem to have anything that works for my purpose.

I tried the solutions in this post: How to invoke external command from within Kotlin code?. Again, these returned nothing when passing in ifconfig.

Okay.. Sorry, but that was the only thing that came to my mind since I am not very familiar with Kotlin — Corni, Jan 10 '22 at 17:30

score 0 · Answer 1 · answered Jul 21 '22 at 10:42

You need to go though the available interfaces and look for wlan0

    val interfaces = NetworkInterface.getNetworkInterfaces()
    val list = interfaces.toList()
    //go through the available interfaces
    for (interface in list) {
        if (interface.name.equals("wlan0")) {
            //look into the interface's ipaddresses (ipv4,ipv6)
            interface.inetAddresses.toList().get(0).hostAddress
        }
    }

How do I get the wlan0 inet address from kotlin android code?

1 Answers1