public void isIpReachable(String ip) {
new Thread(new Runnable() {
@Override
public void run() {
InetAddress addr = null;
try {
addr = InetAddress.getByName(ip);
boolean reachable = addr.isReachable(3000);
Log.d(TAG, "ping address -- " + reachable);
} catch (IOException e) {
e.printStackTrace();
}
}
}).start();
}