javascript - 在 Ionic Framework/Angular JS 中的 Controller 之间共享数据

Question

使用 AngularJS 中的服务在 Controller 之间共享数据的最佳方式是什么？

例如，当用户从 <ion-list> 中选择一个项目时在 services.html 中，我希望所选项目的标题显示在 service.html 中。 {{service.name}}是我写下的一些伪代码，用于阐明我想要实现的目标。

services.html

    <ion-list>
        <ion-item ng-repeat="service in services" href="#/app/services/{{service.id}}" class="item-icon-right">
            {{service.title}} 
            <i class="icon ion-chevron-right icon-accessory">
                <span class="badge badge-positive">{{service.total}}</span>
            </i>
        </ion-item>
    </ion-list>

service.html

<ion-view view-title="Playlist">
    <ion-content>
        <h1>{{service.name}}</h1>
    </ion-content>
</ion-view>

controller.js

.controller('ServicesCtrl', ["$scope", "ServicesData", function($scope, ServicesData) {
  $scope.services = ServicesData.GetServices()
}])

.controller('ServiceCtrl', function($scope, $stateParams) {
});

services.js

angular.module('starter.services', [])

.service("ServicesData", [function () {

    var servicesData = [
        { 
            title: 'Car Repair and Maintenance', 
            total: 7, 
            id: 1 
        },
        { 
            title: 'Cleaning', 
            total: 1, 
            id: 2 
        },
        { 
            title: 'Delivery, Storage and Moving', 
            total: 6, 
            id: 3 
        }
    ];

    return {
        GetServices: function () {
            return servicesData;
        },
        GetServiceById: function () {
            // do stuff here to get the service by id
        }
    }
}])

Answer 1

angular.module('starter.services', [])

.service("ServicesData", [function () {

    var servicesData = [
        { 
            title: 'Car Repair and Maintenance', 
            total: 7, 
            id: 1 
        },
        { 
            title: 'Cleaning', 
            total: 1, 
            id: 2 
        },
        { 
            title: 'Delivery, Storage and Moving', 
            total: 6, 
            id: 3 
        }
    ];

    return {
        getSelected: function(serviceId) {
          var selectedService;
          
          servicesData.forEach(function(service) {
            if(service.id === serviceId) {
              selectedService = service;
            }
          });
          
          return return selectedService;
        },
        getServices: function () {
            return servicesData;
        }
    }
}])

.controller('ServicesCtrl', ["$scope", "ServicesData", function($scope, ServicesData) {
  $scope.services = ServicesData.setServices();
}])

.controller('ServiceCtrl', function($scope, $stateParams) {
  $scope.service = ServicesData.getSelected($stateParams.service);//the param name should be defined in the route config
});

<!--services.html-->

    <ion-list>
        <ion-item ng-repeat="service in services" href="#/app/services/{{service.id}}" class="item-icon-right">
            {{service.title}} 
            <i class="icon ion-chevron-right icon-accessory">
                <span class="badge badge-positive">{{service.total}}</span>
            </i>
        </ion-item>
    </ion-list>

<!--service.html-->

<ion-view view-title="Playlist">
    <ion-content>
        <h1>{{service.name}}</h1>
    </ion-content>
</ion-view>