java - How to open any fragment after Navigation Drawer closed -


my fragment opens after clicking navigation drawer item. want open after navigation drawer has closed.

how open fragment after drawer closed in navigation drawer support library?

private void initnavigationview() {     navigationview = (navigationview) findviewbyid(r.id.navigation_view);     drawerlayout = (drawerlayout) findviewbyid(r.id.navigation_drawer);      drawertoggle = new actionbardrawertoggle(this, drawerlayout, r.string.nav_open, r.string.nav_close) {         @override         public void ondraweropened(view drawerview) {             super.ondraweropened(drawerview);             invalidateoptionsmenu();         }          @override         public void ondrawerclosed(view drawerview) {super.ondrawerclosed(drawerview)         }      };     drawerlayout.post(new runnable() {             @override             public void run() {                 drawertoggle.syncstate();             }         });     drawertoggle.setdrawerindicatorenabled(true);     drawerlayout.setdrawerlistener(drawertoggle);     navigationview.setnavigationitemselectedlistener(new navigationview.onnavigationitemselectedlistener() {             @override             public boolean onnavigationitemselected(menuitem menuitem) {                  switch (menuitem.getitemid()) {                     case r.id.tentang:                         break;                     case r.id.keluar:                         finish();                         break;                 }                 selectdraweritem(menuitem);                 return true;             }              private void selectdraweritem(menuitem menuitem)             {                 fragment fragment = null;                 class fragmentclass = null;                  switch (menuitem.getitemid())                 {                     case r.id.fragment_home:                         fragmentclass = com.wahyuapps.benux.fragment.fragmenthome.class;                         break;                     case r.id.fragment_distro_linux:                         fragmentclass = com.wahyuapps.benux.fragment.fragmentdistrolinux.class;                         break;                 }                 try {                     fragment = (fragment)fragmentclass.newinstance();                 }catch(exception e){                     e.printstacktrace();                 }                 fragmentmanager fragmentmanager = getsupportfragmentmanager();                 fragmentmanager.begintransaction().replace(r.id.fragment_content, fragment).commit();                 menuitem.setchecked(true);                 settitle(menuitem.gettitle());                 drawerlayout.closedrawers();             }         }); }

what code put on this? how open fragment when drawer closed? on case, fragment got opening after clicking item. want opening fragment delayed after drawer closed.

android.support.v4.app.fragmenttransaction fragmenttransaction = getsupportfragmentmanager().begintransaction();         testingfragment hello = new testingfragment();         fragmenttransaction.add(r.id.mainlayout, hello, "hello");         fragmenttransaction.commit();

with can call fragment...and r.id.mainlayout rootlayout of activity.

edit 2

to open fragment after delay

handler handler = new handler();     handler.postdelayed(new runnable() {                 @override                 public void run() {                      fragmentmanager fragmentmanager = getsupportfragmentmanager();                     fragmentmanager.begintransaction().replace(r.id.fragment_content, fragment).commit();                     menuitem.setchecked(true);                     settitle(menuitem.gettitle());                  }             }, 1000);

choose import handler - import android.os.handler;


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