java - Android Studio Onclick Open Navigation Item -

i'm new in android studio. i'm confused linking navigation drawer button.

i have onclicklistener:

    public void clickfunc(view view) {        //codehere       i.add(new navitem("tip us", r.drawable.ic_details, navitem.item, webviewfragment.class, "http://www.google.com"));     } 

when click in button want go navigation drawer.

i've downloaded project fits need uses navigation drawer , want use button menu (not navigation drawer)

anyone knows how it?