How to get WiFi IP address in Android Kotlin.
val wm = applicationContext.getSystemService(WIFI_SERVICE) as WifiManager
val longIp = wm.connectionInfo.ipAddress.toLong()
val byteIp = BigInteger.valueOf(longIp).toByteArray().reversedArray()
val strIp = InetAddress.getByAddress(byteIp).hostAddress
Remember to add the permission into your manifest file else the app will crash on open.
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
