photogallery popup using angularjs not working but using javascript working fine

I have updated your fiddle to add directive. I have added following directive:

NOTE: You need to wait till your ng-repeat finishes rendering the elements. See scope.$parent.$last inside directive

app.directive('imagelist', function() {
  return {
    restrict: 'A',
    scope: {},
    link: function(scope, element, attrs) {
      if (scope.$parent.$last) {
        $('.gallery-items').imagelistexpander({
          prefix: "gallery-"
        });
      }

    }
  }
});