带有运球分页数据的离子无限滚动？

Question

我正在摆弄 ionic，并且使用运球数据只是为了玩玩。我不知道如何 A. 我可以查询 dribble 以显示前 15 条之后的帖子，API 在这里 http://api.dribbble.com/shots/everyone 如果我想获得更多，我可以请求第 2 页就像 http://api.dribbble.com/shots/everyone?page=2

B.如何将项目传递到我的模板中而不与旧项目冲突？

/**
 * Dashboard Controller. (must be authenticated)
 *
 */
.controller('DashController', function($scope, $state, DribbbleData, $http) {

  $scope.items = [];

  $scope.initialize = function() {
    DribbbleData.getData().then(function(res) {
      console.log(res);
      $scope.items = res.data.shots;
    }, function(status) {
      console.log('error')
    })
  }

  $scope.loadMore = function() {
    $http.jsonp('http://api.dribbble.com/shots/everyone?callback=JSON_CALLBACK').success(function(items) {
      console.log(items);
      var test = $scope.items;
      console.log(test)
      //$scope.items = items;
      //useItems(items);
      $scope.$broadcast('scroll.infiniteScrollComplete');
    });
  };

  $scope.$on('$stateChangeSuccess', function() {
    $scope.loadMore();
  });

  $scope.initialize();
})

景色

<ion-view view-title="Dashboard">
  <ion-content class="padding">

    <ion-list>
      <div class="list card" data-ng-repeat="item in items">
        <div class="item item-title">
          <h2>{{item.title}}</h2>
        </div>
        <div class="item item-body">
          <img class="full-image" ng-src="{{item.image_url}}">
          <p>
            <a href="#" class="subdued">{{item.likes_count}} Like</a>
            <a href="#" class="subdued">{{item.comments_count}} Comments</a>
          </p>
        </div>
        <div class="item tabs tabs-secondary tabs-icon-left">
          <a class="tab-item" href="#">
            <i class="icon ion-thumbsup"></i>
            Like
          </a>
          <a class="tab-item" href="#">
            <i class="icon ion-chatbox"></i>
            Comment
          </a>
          <a class="tab-item" href="#">
            <i class="icon ion-share"></i>
            Share
          </a>
        </div>
      </div>
    </ion-list>

    <ion-infinite-scroll on-infinite="loadMore()" distance="1%">
    </ion-infinite-scroll>

  </ion-content>
</ion-view>

Answer 1

如果您确定没有重复项，只需连接项目即可：

$scope.items = $scope.items.concat(items);

如果不存在，最好的办法是跟踪列表中当前的项目，并仅在其尚不存在时添加：

var itemIds = {};

function addItems(items) {
  items.forEach(function (item) {
    if (itemsIds[item.id]) {
      return;
    }
    $scope.items.push(item);
    itemIds[item.id] = true;
  }
}

要处理分页，只需在成功回调中增加一个计数器即可。例如：

  var nextPage = 2;

  $scope.loadMore = function() {
    $http.jsonp('http://api.dribbble.com/shots/everyone?callback=JSON_CALLBACK&page=' + nextPage).success(function(items) {
      nextPage++;
      addItems(items);
      $scope.$broadcast('scroll.infiniteScrollComplete');
    });
  };

Answer 2

当 ajax 完成时，您需要将新项目添加到您的

$scope.items

数组中

  $scope.loadMore = function() {
    $http.jsonp('http://api.dribbble.com/shots/everyone?callback=JSON_CALLBACK').success(function(items) {
      // Add all the new items
      items.forEach(function(newItem) {
        $scope.items.push(newItem);
      });
      $scope.$broadcast('scroll.infiniteScrollComplete');
    });
  };