cannot resolve method 'addDrawerListener(android.support.v7.app.ActionBarDrawerToggle)' -

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package com.shafi.shafqat.listview;  import android.support.design.widget.navigationview; import android.support.v4.widget.drawerlayout; import android.support.v7.app.actionbardrawertoggle; import android.support.v7.app.appcompatactivity; import android.support.v7.widget.toolbar; import android.view.menuitem; import android.view.view; import android.widget.textview; import android.widget.toast;   public class raweractivity extends appcompatactivity{       drawerlayout drawer;      navigationview navview;      toolbar toolbar;      public void initnavdrawer(){          navview = (navigationview) findviewbyid(r.id.navigation_view);          navview.setnavigationitemselectedlistener(new navigationview.onnavigationitemselectedlistener() {              @override              public boolean onnavigationitemselected(menuitem item) {                   switch (item.getitemid()){                      case r.id.bikes:                          toast.maketext(getapplicationcontext(), "bikes selected", toast.length_short).show();                          break;                      case r.id.accessories:                          toast.maketext(getapplicationcontext(), "accessories selected", toast.length_short).show();                          break;                      case r.id.contact:                          toast.maketext(getapplicationcontext(), "contact selected", toast.length_short).show();                          break;                      case r.id.login:                          toast.maketext(getapplicationcontext(), "log in selected", toast.length_short).show();                          break;                  }                  return true;              }          });            toolbar = (toolbar) findviewbyid(r.id.toolbar);          view header = navview.getheaderview(0);          textview tv_email = (textview)header.findviewbyid(r.id.user_name);          tv_email.settext("skshafqat@gmail.com");          drawer = (drawerlayout)findviewbyid(r.id.drawer_layout);           actionbardrawertoggle actionbardrawertoggle =                  new actionbardrawertoggle(this,drawer,toolbar,r.string.drawer_open,r.string.drawer_close){                       @override                      public void ondrawerclosed(view v){                          super.ondrawerclosed(v);                      }                       @override                      public void ondraweropened(view v) {                          super.ondraweropened(v);                      }                   };          drawer.adddrawerlistener(actionbardrawertoggle);          actionbardrawertoggle.syncstate();      }   }

i tested same code yesterday , worked. when wanted combine code module highlights following drawer.adddrawerlistener(actionbardrawertoggle); line in red. when hover on it, shows error cannot resolve method adddrawerlistener(android.support.v7.app.actionbardrawertoggle).

please help...


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