Google Maps自动完成功能在模式弹出窗口中不起作用

我正在使用google maps api。我正在尝试为输入框实现自动完成地址功能。但是问题在于页面上的所有内容似乎都可以正常工作，但在模式弹出窗口中却无法正常工作。

这是HTML

    <div class="col-xs-5 col-sm-2 col-md-2">
    <a href="javascript:void(0)" data-ng-click="addlocationpopup()">+New 
    Location</a>
    </div> <!--button which calls popup -->

这是模式弹出窗口

    <div class="modal right fade addlocation" id="myModal_5" tabindex="-1"
    role="dialog" aria-labelledby="myModalLabel2" data-keyboard="false">
    <div class="modal-dialog" role="document">
    <div class="modal-content">
        <div class="modal-header">
            <h4 class="modal-title" id="myModalLabel1">ENTER LOCATION 
            DETAILS</h4>
        </div>
        <form name="locationForm" novalidate="novalidate" method="post">
            <div class="modal-body">
                <div class="row"> 
                  <div>
                  <input id="autocomplete" placeholder="Enter your address"
                  onFocus="geolocate()" type="text"></input>
                  </div>
                </div>
             </div>
         </form>
        </div>
       </div>
      </div>
    <script 
    src="https://maps.googleapis.com/maps/api/js?
    key=mykey&libraries=places&callback=initAutocomplete" async defer>
    </script>
    <script>
    var placeSearch, autocomplete;
    var componentForm = {
    street_number: 'short_name',
    route: 'long_name',
    locality: 'long_name',
    administrative_area_level_1: 'short_name',
    country: 'long_name',
    postal_code: 'short_name'
  };

  function initAutocomplete() {
   autocomplete = new google.maps.places.Autocomplete(
        /** @type {!HTMLInputElement} */(document.getElementById('autocomplete')),
        {types: ['geocode']});
   autocomplete.addListener('place_changed', fillInAddress);
  }

  function fillInAddress() {
    var place = autocomplete.getPlace();

    for (var component in componentForm) {
      document.getElementById(component).value = '';
      document.getElementById(component).disabled = false;
    }

    for (var i = 0; i < place.address_components.length; i++) {
      var addressType = place.address_components[i].types[0];
      if (componentForm[addressType]) {
        var val = place.address_components[i][componentForm[addressType]];
        document.getElementById(addressType).value = val;
      }
    }
  }

  function geolocate() {
    if (navigator.geolocation) {
      navigator.geolocation.getCurrentPosition(function(position) {
        var geolocation = {
          lat: position.coords.latitude,
          lng: position.coords.longitude
        };
        var circle = new google.maps.Circle({
          center: geolocation,
          radius: position.coords.accuracy
        });
        autocomplete.setBounds(circle.getBounds());
      });
    }
  }
</script>

控制器。js：

    $scope.addlocationpopup = function(){
    $(".addlocation").modal("show");
    }

如果在页面中我放一个输入框并键入它可以正常工作。但是在模态内部它不起作用，这是当我在输入框内键入内容时未显示的地方。我不明白为什么在弹出菜单中它不起作用，因为脚本是页面加载时已经加载。谁能告诉我如何使其在模式弹出窗口中工作？