Angular-UI预先输出结果未显示在下拉列表中 [英] Angular-UI typeahead results not showing in dropdown

问题描述

我正在使用Angular-ui typeahead组件来命中自动完成API，我正在解析数据，我将其返回到一个名为 resp 的数组中。但是，我没有看到数据传递到UI中的自动完成下拉列表。顺便说一句，控制器有一个console.log，可以正确显示数据，所以我知道它从api调用返回。

Im using Angular-ui typeahead component to hit an autocomplete API, and I'm parsing the data I get back into an array called resp. However, Im not seeing the data getting passed to the autocomplete dropdown in the UI. BTW, the controller has a console.log that displays the data correctly, so i know its returning from the api call.

这是我的控制器功能：

$scope.getLocationForSearch = function(locationString){

    $scope.locationString = locationString;
    var url = '/autoComplete/' + locationString ;
    $http({
        method: 'GET',
        url: url            
    }).then(function successCallback(response) {
        console.clear();
        var resp = response.data.RESULTS.map(function(item){
            console.log(item.name);
            return item.name;
        });

        return resp;

      }, function errorCallback(response) {
        console.log(response); 
    });     
}

在我的HTML中：

    <div class="input-group">
        <input 
            type="text" class="form-control" ng-model="asyncSelected" placeholder="Search city or zip code"
            uib-typeahead="item for item in getLocationForSearch($viewValue)"/>
        <i ng-show="loadingLocations" class="glyphicon glyphicon-refresh"></i>
        <div ng-show="noResults">
          <i class="glyphicon glyphicon-remove"></i> No Results Found
        </div>
        <span class="input-group-btn">
            <button class="btn btn-default" name="search" ng-model="asyncSelected" type="submit" ng-click="getWeather(asyncSelected)">
                <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
            </button>
        </span>
    </div><!-- /input-group -->

这里有几个帖子同样的问题，但没有一个真正回答我的具体问题。任何帮助表示赞赏。

There are several posts on here for this same issue but none really answer my specific problem. Any help is appreciated.

推荐答案

您的函数 getLocationForSearch（）不是好的：它必须将承诺返回到 uib-typeahead 指令。
所以工作代码是：

Your function getLocationForSearch() is not good: it has to return a promise to uib-typeahead directive. So working code is:

  $scope.getLocationForSearch = function(locationString) {

    $scope.locationString = locationString;
    var url = '/autoComplete/' + locationString ;

    return $http({
      method: 'GET',
      url: url
    }).then(function successCallback(response) {
      console.clear();
      return response.data.results.map(function(item) {
        console.log(item.name);
        return item.name;
      });
    }, function errorCallback(response) {
      console.log(response);
    });
  }

这是关于Plunker的一个工作示例：

Here is a working example on Plunker:

http://plnkr.co/edit/v67vR8f3nHImGSoAUyBd?p=preview

这篇关于Angular-UI预先输出结果未显示在下拉列表中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！