如何在 Google 个地方 Api 中同时按距离和半径排序？

Question

我知道不可能同时使用rankby=距离和半径。但现在我不知道如何排序。我已经调用 Google Places Api 通过使用 radius abd 使用 harvensin 手动计算距离。有人能帮我吗？谢谢

我想实现这样的排序 https://www.javatpoint.com/Comparator-interface-in-collection-framework 但我不知道如何实现它。

private void makeRequest(String url,final Location location){
    Log.d(TAG, "Url: " + url);
    RequestQueue queue = Volley.newRequestQueue(mContext);
    StringRequest stringRequest = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    try {
                        JSONObject json = new JSONObject(response);
                        JSONArray results = json.getJSONArray("results");

                        List<LocationContent> list = new ArrayList<>();
                        Log.d(TAG, "no of results: " + results.length());
                        if(results.length() > 0) {
                            for (int i = 0; i < results.length(); i++) {
                                JSONObject googlePlace = results.getJSONObject(i);

                                Double distance = HelperClass.getDistanceFromLatLonInKm(
                                        location.getLatitude(),location.getLongitude(),
                                        googlePlace.getJSONObject("geometry").getJSONObject("location").getDouble("lat")
                                        ,googlePlace.getJSONObject("geometry").getJSONObject("location").getDouble("lng")) / 1000;

                                String distanceBetweenTwoPlace = String.valueOf(distance);
                                String distance_new = distanceBetweenTwoPlace.substring(0, 3);
                                list.add(new LocationContent(googlePlace.getString("name"),
                                        googlePlace.getJSONObject("geometry").getJSONObject("location").getDouble("lat"),
                                        googlePlace.getJSONObject("geometry").getJSONObject("location").getDouble("lng"),Double.valueOf(distance_new)));
                            }
                        }
                        refreshPlaces(list);
                    } catch (JSONException e) {
                        Log.e(TAG, "Error occurred while getting places", e);
                    }
                    Log.d(TAG, "onResponse: " + response.substring(0,250));
                }
            }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
        }
    });

    // Add the request to the RequestQueue.
    queue.add(stringRequest);
}

private void refreshPlaces(List<LocationContent> list){
    mList.clear();
    mList.addAll(list);
    mAdapter.setDataset(mList);
}

Answer 1

知道怎么做了。只需使用 Collections.sort。我就是这样做的

private void makeRequest(String url,final Location location){
    Log.d(TAG, "Url: " + url);
    RequestQueue queue = Volley.newRequestQueue(mContext);
    StringRequest stringRequest = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    try {
                        JSONObject json = new JSONObject(response);
                        JSONArray results = json.getJSONArray("results");

                        List<LocationContent> list = new ArrayList<>();
                        Log.d(TAG, "no of results: " + results.length());
                        if(results.length() > 0) {
                            for (int i = 0; i < results.length(); i++) {
                                JSONObject googlePlace = results.getJSONObject(i);

                                Double distance = HelperClass.getDistanceFromLatLonInKm(
                                        location.getLatitude(),location.getLongitude(),
                                        googlePlace.getJSONObject("geometry").getJSONObject("location").getDouble("lat")
                                        ,googlePlace.getJSONObject("geometry").getJSONObject("location").getDouble("lng")) / 1000;

                                String distanceBetweenTwoPlace = String.valueOf(distance);
                                String distance_new = distanceBetweenTwoPlace.substring(0, 3);
                                list.add(new LocationContent(googlePlace.getString("name"),
                                        googlePlace.getJSONObject("geometry").getJSONObject("location").getDouble("lat"),
                                        googlePlace.getJSONObject("geometry").getJSONObject("location").getDouble("lng"),Double.valueOf(distance_new)));
                            }
                            //sort the distance
                            Collections.sort(list,new DistanceComparator());
                        }
                        refreshPlaces(list);
                    } catch (JSONException e) {
                        Log.e(TAG, "Error occurred while getting places", e);
                    }
                    Log.d(TAG, "onResponse: " + response.substring(0,250));
                }
            }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
        }
    });

    // Add the request to the RequestQueue.
    queue.add(stringRequest);
}


public class DistanceComparator implements Comparator<LocationContent> {
    public int compare(LocationContent L1,LocationContent L2){
        double delta= L1.getDistance() - L2.getDistance();
        if(delta > 0.00001) return 1;
        if(delta < -0.00001) return -1;
        return 0;
    }
}

如何在 Google 个地方 Api 中同时按距离和半径排序？

How to sort by distance and using radius at the same time in Google Places Api?

java

android

sorting

google-places-api