(android) how to determine the ip address of connected devices in android hotspot

Question

i am writing an android app to control other devices if other devices is connected to my android phone's Wifi hotspot. However, i am unable to determine the ip address of the connected devices (say another android phone). Therefore, i am asking a way to determine the ip address of connected devices in my wifi hotspot. Thank you in advance

This page may help you to find your answer. android.stackexchange.com/questions/46649/… — Aravindan K
– Aravindan K, Commented Dec 10, 2014 at 17:32
But can i determine the ip in api method?? i would like to do it in automatically way — user3338304
– user3338304, Commented Dec 10, 2014 at 17:45
Try this code on the below link. stackoverflow.com/a/7049074/3847529 — Aravindan K
– Aravindan K, Commented Dec 10, 2014 at 17:52

Rishi Pandey · Accepted Answer · 2016-11-13 18:22:38Z

You can try this method for getting the list of devices connected to your hotspot. for pingCmd refer this

public ArrayList<String> getArpLiveIps(boolean onlyReachables) { BufferedReader bufRead = null; ArrayList<String> result = null; try { result = new ArrayList<String>(); bufRead = new BufferedReader(new FileReader("/proc/net/arp")); String fileLine; while ((fileLine = bufRead.readLine()) != null) { String[] splitted = fileLine.split(" +"); if ((splitted != null) && (splitted.length >= 4)) { String mac = splitted[3]; if (mac.matches("..:..:..:..:..:..")) { boolean isReachable = pingCmd(splitted[0]);/** * Method to Ping IP Address * @return true if the IP address is reachable */ if (!onlyReachables || isReachable) { result.add(splitted[0]); } } } } } catch (Exception e) { } finally { try { bufRead.close(); } catch (IOException e) { } } return result; }