Question

我正在研究Google地图和搜索。

在地图上进行搜索的唯一选项是Google Places API。 https://developers.google.com/places/android-sdk/intro

其中还指出您的播放服务版本的SDK已过时。

所以我试图用新的SDK来实现它。现在，我想要的是代替“自动完成”来打开一个新活动，我希望它以列表显示在我的自动完成中。

所以我试图实现这一点：https://github.com/googlesamples/android-play-places/blob/master/PlaceCompleteAdapter/Application/src/main/java/com/example/google/playservices/placecomplete/PlaceAutocompleteAdapter.java

但是问题在于它适用于Play服务版本，但不适用于Compat版本，因为类别和导入不同。

这是我遇到问题的代码部分：

// Submit the query to the autocomplete API and retrieve a PendingResult that will
            // contain the results when the query completes.
            PendingResult<AutocompletePredictionBuffer> results =
                    Places.GeoDataApi
                            .getAutocompletePredictions(mGoogleApiClient, constraint.toString(),
                                    mBounds, mPlaceFilter);

            // This method should have been called off the main UI thread. Block and wait for at most 60s
            // for a result from the API.
            AutocompletePredictionBuffer autocompletePredictions = results
                    .await(60, TimeUnit.SECONDS);

            // Confirm that the query completed successfully, otherwise return null
            final Status status = autocompletePredictions.getStatus();
            if (!status.isSuccess()) {
                Toast.makeText(getContext(), "Error contacting API: " + status.toString(),
                        Toast.LENGTH_SHORT).show();
                Log.e(TAG, "Error getting autocomplete prediction API call: " + status.toString());
                autocompletePredictions.release();
                return null;
            }

如果有人用New Places API库实现了PlacesAutoCompleteAdapter。请指导我更改上面的代码。

谢谢。

Answer 1

Reference link:

https://developers.google.com/places/android-sdk/autocomplete#get_place_predictions_programmatically

第1步。初始化新的PlaceClient

// Initialize Places.
Places.initialize(getApplicationContext(), apiKey);
// Create a new Places client instance.
PlacesClient placesClient = Places.createClient(this);

第2步。创建请求

// contain the results when the query completes.
  FindAutocompletePredictionsRequest request = FindAutocompletePredictionsRequest.builder()
       // similar to previous mBounds
      // but you have to use Rectangular bounds (Check reference link)
      .setLocationRestriction(mBounds)  
      .setQuery(constraint.toString()) // similar to previous constraint
      .setTypeFilter(TypeFilter.ADDRESS) // similar to mPlaceFilter
      .build();

第3步。将请求对象发送到响应方法

Task<FindAutocompletePredictionsResponse> task =
      placeClient.findAutocompletePredictions(request);

第4步。在此处处理OnSuccess代码

  task.addOnSuccessListener(
      (response) -> {
        for (AutocompletePrediction prediction : response.getAutocompletePredictions()) {
          Timber.d("prediction result: " + prediction);

          // add result to your arraylist
        }
        // return your arraylist outside foreach loop
      });

第5步。在此处处理OnFailure代码

task.addOnFailureListener((exception) -> {
    if (exception instanceof ApiException) {
      ApiException apiException = (ApiException) exception;
      // places not found exception code
      Timber.i("error message %s", apiException.getMessage());
    }
  });

第6步。在此处处理OnComplete代码

task.addOnCompleteListener((response) -> {
    Exception e = task.getException();
    if (e instanceof ApiException) {
      ApiException apiException = (ApiException) e;
      if (!task.isSuccessful()) {
        // your code
      }
    }
  });
}

具有Places SDK兼容库的PlaceAutocompleteAdapter

1 个答案: