找不到 google.maps.places.PlacesService() 的任何示例并出现错误

Question

找不到任何 google.maps.places.PlacesServices() 的示例，它从具有组件限制的输入字段进行搜索，就像自动完成一样。 Google site只有参考资料，没有例子

我在下面有这个但收到一个错误提示

TypeError: 无法读取未定义的属性“innerHTML”

和

TypeError: 无法读取属性 'findPlaceFromQuery' of null

findLocationFromPlaces() {
    this.placesService = new google.maps.places.PlacesService(this.cityInput);

    const request = {
      query: 'San Francisco',
      fields: ['photos', 'formatted_address', 'name', 'rating', 'opening_hours', 'geometry']
    };

    this.placesService.findPlaceFromQuery(request
      // {
      //   types: ['(cities)']
      //   // componentRestrictions: { country: this.countrySelected },
      //   // types: ['geocode']  // 'establishment' / 'address' / 'geocode'
      // }
    ,
    (results, status) => {
      if (status === google.maps.places.PlacesServiceStatus.OK) {
        
      }
      else {
          
      }
    }
    );
  }

我的“this.cityInput”是

@ViewChild('city') cityInput: HTMLDivElement;

<input appGooglePlaces id="city" (onSelect)="setAddress($event)" (keydown.Tab)="onTabAway($event)" (focusout)="focusOutFunction($event)" (input)="onLocationChange($event)" [ngClass]="{'is-invalid': registerForm.get('city').errors && registerForm.get('city').touched}"
  formControlName="city" class="form-control google-place-input" [placeholder]="placeholder">

Answer 1

地点服务用于地点搜索。它不能像自动完成服务那样工作。此外，您不能将 componentRestrictions 传递给 findPlaceFromQuery()。此方法仅采用 3 个参数：查询、字段和可选的 locationBias（偏向但不限制搜索区域）。

可以在 here 和 here's a working example 找到“从查询中查找位置”的文档。

如果您还希望实现自动完成功能，例如将结果限制在特定国家/地区，请使用实际的Autocomplete service。

编辑无地图选项：

1. 从查询中查找地点

   function findLocationFromPlaces() {
       let placesService = new google.maps.places.PlacesService(document.getElementById("map")); // i.e. <div id="map"></div>
   
       const request = {
           query: 'San Francisco',
           fields: ['photos', 'formatted_address', 'name', 'rating', 'opening_hours', 'geometry']
       };
   
       placesService.findPlaceFromQuery(request, function(results, status) {
           if (status === google.maps.places.PlacesServiceStatus.OK) {
               console.log(results[0].formatted_address) // San Francisco, CA, USA
           }
           else {
               console.log("doesn't work");
           }
       });
   }
   

2. 地址形式的自动填充（完整示例here）+ 国家/地区限制

   function initAutocomplete() {
     // Create the autocomplete object, restricting the search predictions to
     // geographical location types.
     autocomplete = new google.maps.places.Autocomplete(
         document.getElementById('autocomplete'), {types: ['geocode'], componentRestrictions: {country: 'us'}});
   
     // Avoid paying for data that you don't need by restricting the set of
     // place fields that are returned to just the address components.
     autocomplete.setFields(['address_component']);
   
     // When the user selects an address from the drop-down, populate the
     // address fields in the form.
     autocomplete.addListener('place_changed', fillInAddress);
   }
   
   function fillInAddress() {
     // Get the place details from the autocomplete object.
     var place = autocomplete.getPlace();
   
     for (var component in componentForm) {
       document.getElementById(component).value = '';
       document.getElementById(component).disabled = false;
     }
   
     // Get each component of the address from the place details,
     // and then fill-in the corresponding field on the form.
     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;
       }
     }
   }
   

3. Find Place 网络服务（文档here）

   https://maps.googleapis.com/maps/api/place/findplacefromtext/json?input=San%20Francisco&inputtype=textquery&fields=photos,formatted_address,name,rating,opening_hours,geometry&key=YOUR_API_KEY

4. 自动完成网络服务（文档here）+ 国家/地区限制

   https://maps.googleapis.com/maps/api/place/autocomplete/json?input=San+Francisco&types=geocode&components=country:us&key=YOUR_API_KEY

希望这能澄清你的问题！