android - Action bar is hidden and that shown instantly after that -

i'm trying toggle show/hide action bar on user click on activity, i've implemented functionality in activity:

@override public boolean dispatchtouchevent(motionevent ev) {     log.d("action bar", "triggered");      super.dispatchtouchevent(ev);      actionbar actionbar = getsupportactionbar();     actionbar.hide();      if (actionbar.isshowing()) {         actionbar.hide();     } else {         actionbar.show();     }      return true; } 

however, problem when clicked on activity, action bar gets hidden shown again. i've added logging , seems method triggered twice, why so?

i think dispatchtouchevent might called 2 time on touch down , action take 1 boolean flag , check flag value before showing action bar :

private boolean ismanuallyhideshownactionbar;  @override public boolean dispatchtouchevent(motionevent ev) {     super.dispatchtouchevent(ev);      actionbar actionbar = getsupportactionbar();      if(!ismanuallyhideshownactionbar){         if (actionbar.isshowing()) {             actionbar.hide();         } else {             actionbar.show();         }         ismanuallyhideshownactionbar = true;     }else{         ismanuallyhideshownactionbar = false;     }      return true; }