@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(ConnectivityManager.CONNECTIVITY_ACTION)) {
mdnsSd.stop();
ConnectivityManager connManager =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
NetworkInfo mEth = connManager.getNetworkInfo(ConnectivityManager.TYPE_ETHERNET);
NetworkInterface netInterface = null;
// search the network interface with the ip address returned by the wifi manager
if ((mWifi != null) && (mWifi.isConnected())) {
WifiManager wifiManager =
(WifiManager) context.getSystemService(Context.WIFI_SERVICE);
if (wifiManager != null) {
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
int ipAddressInt = wifiInfo.getIpAddress();
String ipAddress =
String.format(
"%d.%d.%d.%d",
(ipAddressInt & 0xff),
(ipAddressInt >> 8 & 0xff),
(ipAddressInt >> 16 & 0xff),
(ipAddressInt >> 24 & 0xff));
try {
InetAddress addr = InetAddress.getByName(ipAddress);
Enumeration<NetworkInterface> intfs = NetworkInterface.getNetworkInterfaces();
while (netInterface == null && intfs.hasMoreElements()) {
NetworkInterface intf = intfs.nextElement();
Enumeration<InetAddress> interfaceAddresses = intf.getInetAddresses();
while (netInterface == null && interfaceAddresses.hasMoreElements()) {
InetAddress interfaceAddr = interfaceAddresses.nextElement();
if (interfaceAddr.equals(addr)) {
netInterface = intf;
}
}
}
} catch (Exception e) {
ARSALPrint.e(TAG, "Unable to get the wifi network interface", e);
}
}
}
// for ethernet, it's not possible to find the correct netInterface. Assume there is
// a default route don't specify the netinterface
if (((mWifi != null) && (mWifi.isConnected()))
|| ((mEth != null) && (mEth.isConnected()))) {
ARSALPrint.v(TAG, "Restaring MdsnSd");
mdnsSd.start(netInterface);
} else {
netDeviceServicesHmap.clear();
broadcaster.broadcastDeviceServiceArrayUpdated();
}
}
}
