ng-click doesn't work on different page

i have two file.html : list.html and popover.html.

i want to add class element when i clicked, so this way it's work to me on same file list.html :

<i ng-class="{'icon ion-ios7-pricetags select':liked, 'icon ion-ios7-pricetags':!liked}" ng-click="liked=!liked"></i>

but if i add ng-click="liked=!liked" to different file (popover.html), it's doesn't work.

<input type="radio" name="tags" value="Food" ng-click="closeInController(); liked=!liked" ng-model="data.expense">

this my code app.js for popover :

$scope.closeInController = function() {
   $scope.popover.hide();
};

anyone can help me? Thanks in advance.