flutter_google_places 未显示自动完成搜索结果

eva*_*aus 2 google-maps dart google-places-api flutter google-places-autocomplete

我正在关注以下链接中有关使用 Google Maps API 创建搜索功能以在地图上查找地点的教程:

Medium.com 颤振教程

以下是我认为构成问题核心的代码:

 /**
* Retrieves the user's location
* NOTE: This pretty much does the same thing as _animateToUser,
* but I separated the two
*/
Future<LatLng> getUserLocation() async {
 var currentLocation = <String, double>{};
 final uLocation = LocationManager.Location();
try {
  currentLocation = await uLocation.getLocation();
  final lat = currentLocation["latitude"];
  final lng = currentLocation["longitude"];
  final center = LatLng(lat, lng);
  return center;
} on Exception {
  currentLocation = null;
  return null;
}
}

/**
 * Searches for locations using Google Maps API
*/
Future<void> _search() async {
try {
  final center = await getUserLocation();
  Prediction p = await PlacesAutocomplete.show(
      context: context,
      strictbounds: center == null ? false : true,
      apiKey: kGoogleApiKey,
      onError: onError,
      mode: Mode.overlay,
      language: "en",
      location: center == null
          ? null
          : Location(center.latitude, center.longitude),
      radius: center == null ? null : 10000);

  showDetailPlace(p.placeId);
} catch (e) {
  return;
}
}

/**
* Shows details of a place
*/
Future<Null> showDetailPlace(String placeId) async {
if (placeId != null) {
  Navigator.push(
    context,
    MaterialPageRoute(builder: (context) => 
    PlaceDetailWidget(placeId)),
  );
 }
 } /**
 * Retrieves the user's location
 * NOTE: This pretty much does the same thing as _animateToUser,
 * but I separated the two
 */
Future<LatLng> getUserLocation() async {
var currentLocation = <String, double>{};
final uLocation = LocationManager.Location();
try {
  currentLocation = await uLocation.getLocation();
  final lat = currentLocation["latitude"];
  final lng = currentLocation["longitude"];
  final center = LatLng(lat, lng);
  return center;
} on Exception {
  currentLocation = null;
  return null;
}
}`
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问题是,无论我在搜索栏中输入什么,它都不会自动完成/建议任何内容。

例子: 在此处输入图片说明

在这个例子中,我想列出一个包含“grand”这个词的地方的列表,例如“Grand Central Station”。

tec*_*boy 8

在控制台中查找错误。就我而言,我的账单已链接并启用了相关 API,但它仍然从不显示预测。然后我添加以下strictBounds类型作为非空值。

Prediction p = await PlacesAutocomplete.show(
                  context: context,
                  apiKey: Local.googleMapsAPIKey,
                  radius: 10000000,
                  types: [],
                  strictbounds: false,
                  mode: Mode.overlay,
                  language: "fr",
                  decoration: InputDecoration(
                    hintText: 'Search',
                    focusedBorder: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(20),
                      borderSide: BorderSide(
                        color: Colors.white,
                      ),
                    ),
                  ),
                  components: [Component(Component.country, "fr")],
                );
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eva*_*aus 5

我想到了。该_search()函数有一个半径radius: center == null ? null : 10000);,用于计算您给定的半径范围内您周围的区域。我的模拟器有我的位置在大西洋中间(单独的问题,但非常小)。由于在我位于海洋中间的位置附近没有以“grand”开头的地方,因此什么也没有发生。我将半径从10000to 增加到10000000它开始寻找位置。