Sidemenu Params from lists a single page

ionic-v1
1

Hi guys … I need help … someone is available? I have a problem with lists and single page … do not pass the parameter … there’s something wrong and do not understand what … thanks… i use ionic 1

.state('app.eventi', {
    url: '/eventi',
    views: {
      'menuContent': {
        templateUrl: 'templates/eventi.html',
        controller: 'EventiCtrl'
      }
    }
  })

  .state('app.evento', {
    url: '/evento',
    params: {
      evento: null
    },
    views: {
      'menuContent': {
        templateUrl: 'templates/evento.html',
        controller: 'EventoCtrl'
      }
    }
  });



.controller('EventiCtrl', function ($scope, EventiFactory) {
    $scope.eventi = [{ }];
    EventiFactory.getData().then(function (response) {
        $scope.eventi = response.data;
    });

    $scope.doRefresh = function () {
        EventiFactory.getData().then(function (response) {
            $scope.eventi = response.data;
        })
        $scope.$broadcast('scroll.refreshComplete');
        $scope.$apply()
    };

})


.controller('EventoCtrl', function ($scope, $stateParams) {  
    $scope.evento = $stateParams.evento;
})