java - How to call ic_action_overflow button(option menu )onclicklistner in oncreate of main class in android -

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i need call onclicklistner ic_action_overflow button(option menu button) in oncreate of main class ....how write onclicklistner button..thanks in advance!

code should like...

public class mainactivity extends appcompatactivity  {      @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      ic_action_overflow.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view arg0) {             //  todo auto-generated method stub             //body         }     });  }  }

use performclick method

ic_action_overflow.performclick();

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