test for internet connection in android login -

i want check internet connection. tried using code doesn't work. didn't got message (aucune connexion internet)

private boolean isconnectingtointernet(context applicationcontext){         connectivitymanager cm = (connectivitymanager) getsystemservice(context.connectivity_service);         networkinfo ni = cm.getactivenetworkinfo();         if (ni == null) {             // there no active networks.             toast.maketext(getapplicationcontext(), "no internet", toast.length_long).show();             return false;         } else             return true;      } 

and

protected void onpostexecute(string s) {                 super.onpostexecute(s);                 loading.dismiss();                 if(isconnectingtointernet(getapplicationcontext()))   {                 showemployee(s);                 }else{                     // show alert                     toast.maketext(mainactivity.this, "aucune connexion internet", toast.length_short).show();                 }             } 

are fetching string s internet , why using asynctask? in case, should check isconnectingtointernet before running asynctask, not inside it.

in case, try in isconnectingtointernet:

private boolean isconnectingtointernet(context applicationcontext){     connectivitymanager cm = (connectivitymanager) getsystemservice(context.connectivity_service);     networkinfo ni = cm.getactivenetworkinfo();     return ni != null && ni.isconnectedorconnecting(); }