angularjs - Hide nav-button depending on the current state change -


how can hide/show button based on current view?

<ion-nav-buttons side="right">     <button id="search_button" class="button button-icon  ion-ios-search button-clear"  ng-click="search()">     </button>   </ion-nav-buttons>

if have parent controller containing views can following : 

.controller("parentcontroller", function($scope){     var self = this;     $scope.$on('$statechangesuccess', function(event, tostate, toparams, fromstate, fromparams){            self.showbutton = (tostate.name == "yourstatename");    });  });

html : 

<div ng-controller="parentcontroller parentctrl">   <ui-view> </ui-view>    <ion-nav-buttons side="right">     <button id="search_button" class="button button-icon  ion-ios-search button-clear"  ng-click="search()" ng-if="parentctrl.showbutton">     </button>   </ion-nav-buttons> </div>

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