android notification opens fragment from Activity -

hello in application need generate notification.

for have done

 private void generatenotification(string message) {             mnotificationmanager = (notificationmanager)                     .getsystemservice(context.notification_service);             notificationcompat.builder mbuilder = new notificationcompat.builder(                     this)                     /* .setsmallicon(r.drawable.ic_launcher) */                     .setsmallicon(r.drawable.app_icon)                     .setcontenttitle(getresources().getstring(r.string.app_name))                     .setstyle(                             new notificationcompat.bigtextstyle().bigtext(message))                     .setticker(message).setcontenttext(message).setautocancel(true);              // play default notification sound             mbuilder.setdefaults(notification.default_sound                     | notification.flag_auto_cancel | notification.default_lights);              /*              * pendingintent contentintent = pendingintent.getactivity(this, 0, new              * intent(this, recentchatlist.class), 0);              */             /*              * pendingintent contentintent = pendingintent.getactivity(this, 0, new              * intent(this, dashboardactivity.class), 0);              */             pendingintent contentintent = pendingintent.getactivity(this, 0,                     new intent(this, dashboardactivity.class), 0);             mbuilder.setcontentintent(contentintent);             mnotificationmanager.notify(notification_id, mbuilder.build());         } 

and in dashboardactivity

if (global.getopen_which_fragment_on_notification().contains(                 "single message")) {             global.setopen_which_fragment_on_notification("");             fragmentmanager fragmentmanager1;             // on first time display view first item             fragment fragment1 = null;             fragment1 = new chatfragment();             if (fragment1 != null) {                 fragmentmanager1 = getfragmentmanager();                 fragmentmanager1.begintransaction()                         .replace(r.id.frmlayout, fragment1).commit();                  txtheadertitle.settext("chat");             }         }         else         {             global.setopen_which_fragment_on_notification("");             fragmentmanager fragmentmanager1;             // on first time display view first item             fragment fragment1 = null;             fragment1 = new mygroupsfragment();             if (fragment1 != null) {                 fragmentmanager1 = getfragmentmanager();                 fragmentmanager1.begintransaction()                         .replace(r.id.frmlayout, fragment1).commit();                  txtheadertitle.settext("group chat");             }         } 

this works properly, mean when single chat notification arrives opens proper fragment(chatfragment) when group notification again opens chat fragment not opens group fragment missed in code

thanks in advance

pragna