Question

我使用Firebase API在Angular中创建了一个应用程序。这个概念是用户登录创建一个菜（在伪造的菜肴树结构中），菜的referenceId保存在锻造用户的json树（与'菜'的层次结构相同）中。

在Angular中，我创建了一个范围数组，然后使用getUserDishes（）方法填充该数组。因此，在HTML中仅显示该特定用户创建的菜肴。

详情如下：

锻造：

"dishes" : {
    "-JVrqxyCG16PAJ0te8VM" : {
      "category" : "-JWLmke98kFmc20h8qsF",
      "description" : "Meat balls lamb, with onion,roasted garlic,olive oil,herbs,spice sauce brava.",
      "name" : "Balls Lamb with Brava Sauce",
      "owner" : "User A",
      "photo" : "Image_URL_1",
      "price" : 395
    },
    "-JVrrFShm8cR_YbzGEWo" : {
      "category" : "-JWLmBkPBMJUUiAmcuKa",
      "description" : "Typical tapa in Spain with fried eggs,ptoatoes,chorizo,ham,garlic bread.",
      "name" : "Eggs Sevillana",
      "owner" : "User A",
      "photo" : "Image_URL_2",
      "price" : 325
    },
    "-JVvY3yQcKia6J9-85ku" : {
      "description" : "Example Description",
      "name" : "Example Dish",
      "owner" : "User B",
      "photo" : "Image_URL_3",
      "price" : 100
    }
},

"users" : {
        "User A" : {
          ".priority" : "simplelogin:72",
          "dishes" : {
            "-JVrqxyCG16PAJ0te8VM" : "-JVrqxyCG16PAJ0te8VM",
            "-JVrrFShm8cR_YbzGEWo" : "-JVrrFShm8cR_YbzGEWo"
          }
        "User B" : {
          ".priority" : "simplelogin:73",
          "dishes" : {
            "-JVvY3yQcKia6J9-85ku" : "-JVvY3yQcKia6J9-85ku"
        }
    }

Controler Logic：

  var dishesref = new Firebase(FIREBASE_URL + 'dishes');
  var usersref = new Firebase(FIREBASE_URL + 'users');
    .
    .
    .
    getUserDishes: function () {
      var dishes = {};
      if (User.signedIn()) {
        var user = User.getCurrent();        
        var userObj = $firebase(usersref.child(user.username)).$asObject();

        userObj.$loaded( function () {
            angular.forEach(userObj.dishes, function(dishId) {
              dishes[dishId] = $firebase(dishesref.child(dishId)).$asObject();
            });
        });
      }
      return dishes;
    },

角色代码

<div ng-repeat="(categoryId, category) in categories">
<h1>{{category.name}}</h1>
<li ng-animate="'animate'" class="artist cf" ng-repeat="(dishId, dish) in dishes | filter: query | orderBy: artistOrder:direction">
  <!-- <div ng-repeat="(categoryId, category) in categories"> -->
    <div ng-if="dish.category === categoryId">
      <a href="" ng-href="#/details/{{dishId}}">
      <img ng-src="{{dish.photo}}" alt="Photo of {{dish.name}}">
      <div class="info">
        <h2>{{dish.name}}</h2>
        <h2>{{dish.Id}}</h2>
        <h3>{{dish.price}} INR</h3>
      </div>
      </a>
    </div>
  <!-- </div> -->
</li>
</div>

现在我试图在Firebase的Android API中复制相同的概念。我已成功修改android chat example以显示所有菜肴（即，“菜肴”中的所有项目均可从锻造中看到）。这种方法需要一些改变。

我只需要显示来自用户A的菜肴。为此，我需要在Android中复制上述概念，该概念已经在angular中实现。

您可以找到Android项目存储库：Click Here

有关如何在Android中实现此目的的任何提示吗？谢谢。

从Firebase的Angular API迁移到Android API

0 个答案: