Using NetworkCapabilities
worked for me. You have to loop over all existing networks and check which has VPN_TRANSPORT
ConnectivityManager cm = (ConnectivityManager)mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
Network[] networks = cm.getAllNetworks();
Log.i(TAG, "Network count: " + networks.length);
for(int i = 0; i < networks.length; i++) {
NetworkCapabilities caps = cm.getNetworkCapabilities(networks[i]);
Log.i(TAG, "Network " + i + ": " + networks[i].toString());
Log.i(TAG, "VPN transport is: " + caps.hasTransport(NetworkCapabilities.TRANSPORT_VPN));
Log.i(TAG, "NOT_VPN capability is: " + caps.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VPN));
}