Question

我是google maps和google maps api的新手我想知道我的Android应用程序如何将数据添加到谷歌地图“像位置” 然后其他用户可以在最近的搜索请求上获得此位置换句话说

我的应用将允许用户将他们的位置添加到我的谷歌地图并允许用户按位置搜索到其他用户添加的最近位置不仅谷歌地方库因此，应用程序可以获取json文件包含用户位置周围最近的位置

如何使用Google API实现这一目标？

Answer 1

可以帮助

// Fetches all places from GooglePlaces AutoComplete Web Service
private class PlacesTask extends AsyncTask<String, Void, String>{

    @Override
    protected String doInBackground(String... place) {
        // For storing data from web service
        String data = "";

        // Obtain browser key from https://code.google.com/apis/console
        String key = "key=key";

        String input="";

        try {
            input = "input=" + URLEncoder.encode(place[0], "utf-8");
        } catch (UnsupportedEncodingException e1) {
            e1.printStackTrace();
        }       


        // place type to be searched
        String types = "types=geocode";

        // Sensor enabled
        String sensor = "sensor=false";         

        // Building the parameters to the web service
        String parameters = input+"&"+types+"&"+sensor+"&"+key;

        // Output format
        String output = "json";

        // Building the url to the web service
        String url = "https://maps.googleapis.com/maps/api/place/autocomplete/"+output+"?"+parameters;

        try{
            // Fetching the data from web service in background
            data = downloadUrl(url);
        }catch(Exception e){
            Log.d("Background Task",e.toString());
        }
        return data;        
    }

    @Override
    protected void onPostExecute(String result) {           
        super.onPostExecute(result);

        // Creating ParserTask
        parserTask = new ParserTask();

        // Starting Parsing the JSON string returned by Web Service
        parserTask.execute(result);
    }       
}


/** A class to parse the Google Places in JSON format */
private class ParserTask extends AsyncTask<String, Integer, List<HashMap<String,String>>>{

    JSONObject jObject;

    @Override
    protected List<HashMap<String, String>> doInBackground(String... jsonData) {            

        List<HashMap<String, String>> places = null;

        PlaceJSONParser placeJsonParser = new PlaceJSONParser();

        try{
            jObject = new JSONObject(jsonData[0]);

            // Getting the parsed data as a List construct
            places = placeJsonParser.parse(jObject);

        }catch(Exception e){
            Log.d("Exception",e.toString());
        }
        return places;
    }

    @Override
    protected void onPostExecute(List<HashMap<String, String>> result) {            

            String[] from = new String[] { "description"};
            int[] to = new int[] { android.R.id.text1 };

            // Creating a SimpleAdapter for the AutoCompleteTextView            
            SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), result, android.R.layout.simple_list_item_1, from, to);             

            // Setting the adapter
            atvPlaces.setAdapter(adapter);
    }           
}

输出

enter image description here

添加添加到谷歌地图，然后搜索它

1 个答案: