Question

i keep getting this error on line but if i remove the null i get errors on context telling me to initialize variable..

nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

this is my code

            public void createDialog(Enter_med enter_med) {
        // TODO Auto-generated method stub

        Context context = null;

        NotificationManager nm;
          nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);        
          CharSequence from = "VIPUL";
          CharSequence message = "Crazy About Android...";
          PendingIntent contentIntent = PendingIntent.getActivity(context, 0,
            new Intent(), 0);
          Notification notif = new Notification(R.drawable.ic_launcher,
            "Crazy About Android...", System.currentTimeMillis());
          notif.setLatestEventInfo(context, from, message, contentIntent);
          nm.notify(1, notif);
    }

Answer 1

You should try and initiate the context in your onCreate.

Context context;
public void onCreate(...){
   ...
   context = this;
   ...
} 

And then you use it with nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

Your problem is that you need to initiate it with the activity context, not null