谷歌文本搜索URL在android中不起作用

在本例中，我尝试点击一个URL bacground response1，但response1是print null值，这是什么问题。但HttpRes也可以在url中添加地址。请回答什么问题

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在我的代码中，当使用textsearch url时，Json未在logcat中显示在我的上述代码中有什么问题

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10-06 09:50:56.391:I/System.out19964:GeocoderTask latlnglat/lng:19.0759837,72.8776559 10-06 09:50:56.395:I/System.out19964:AddressText===>>>印度马哈拉施特拉邦孟买10-06 09:50:56.399:I/System.out19964:HttpRes响应-->>>>，马哈拉施特拉邦，India&key=AIZASYAOXVBNSDAV8EJPLIFJT3VIETEXV1LPC 10-06 09:50:56.399:I/System.out19964:Addresstext response-->>>>null 10-06 09:50:56.399:I/System.out19964:Geocoder doInBackground response null

private class GeocoderTask extends AsyncTask<String, Void, String>{

      String location,response1= null;

      String addressText;
    /**********************************************************/
    public GeocoderTask(String location) {
        this.location=location;
    }

    @Override
    protected void onPreExecute() {

         myServiceToHttp= new MyServiceToHttp();
         List<Address> addresses = null;
         Geocoder geocoder = new Geocoder(getBaseContext());    
    /**********************************************************/
        try {
            addresses = geocoder.getFromLocationName(location,1000 );


        } catch (IOException e) {
            e.printStackTrace();
        }

        if(addresses==null || addresses.size()==0){
            Toast.makeText(getBaseContext(), "No Location found", Toast.LENGTH_SHORT).show();
            googleMap.clear();
        }
        else {
            if(addresses.size()>0)
                for(int i=0;i<addresses.size();i++){
                    Address address = (Address) addresses.get(i);
                    // Creating an instance of GeoPoint, to display in Google Map
                    latLng = new LatLng(address.getLatitude(), address.getLongitude());
                    lat = address.getLatitude();
                    lng = address.getLongitude();
                    addressText = String.format("%s, %s",address.getMaxAddressLineIndex() > 0 ? address.getAddressLine(0) : "",address.getCountryName());

                    System.out.println(" GeocoderTask latlng" +latLng);

                    Toast.makeText(getApplicationContext(), "latlng" +String.valueOf(latLng), Toast.LENGTH_SHORT).show();
                    Toast.makeText(getApplicationContext(), "Geolat == "+lat+ "Geolng == " +lng, Toast.LENGTH_SHORT).show();

                    System.out.println("AddressText===>>>" +addressText);

                    Toast.makeText(getApplicationContext(), "addressText"+addressText, Toast.LENGTH_SHORT).show();

                    marker = new MarkerOptions();
                    marker.position(latLng);
                    marker.title(addressText);

                    googleMap.addMarker(marker);
                    // Locate the first location
                    if(i==0){

                        CameraPosition cameraPosition = new CameraPosition.Builder()
                        .target(latLng)             // Sets the center of the map to Mountain View
                        .zoom(10)                   // Sets the zoom
                        .bearing(40)                // Sets the orientation of the camera to east
                        .tilt(5)                    // Sets the tilt of the camera to 30 degrees
                        .build();                   // Creates a CameraPosition from the builder
                        googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));

                    }


                }

        }


        super.onPreExecute();
    }


    @Override
    protected String doInBackground(String... locationName) {


            response1 = myServiceToHttp.makeServiceCall("https://maps.googleapis.com/maps/api/place/textsearch/json?query="+addressText+"&key=YOUR SERVER KEY",MyServiceToHttp.GET);

            String HttpRes = "https://maps.googleapis.com/maps/api/place/textsearch/json?query="+addressText+"&key=YOUR SERVER KEY";
            System.out.println("HttpRes response---->>>>" +HttpRes);
            System.out.println("Addresstext response---->>>>" +response1);

            if (response1!=null) {

                try {

                      JSONObject jsonObject=new JSONObject(response1);
                      System.out.println("Json==>>>>"+jsonObject);
                      JSONArray array=jsonObject.getJSONArray("results");
                      System.out.println("JsonArray==>>>"+array);

                    } 
                    catch (JSONException e) 
                    {
                    e.printStackTrace();
                   }

            }
            else
            {
                System.out.println("Geocoder doInBackground response null");
            }



        return response1;
    }

    @Override
    protected void onPostExecute(String addresses) {

        Toast.makeText(getApplicationContext(), addresses, Toast.LENGTH_SHORT).show();

        super.onPostExecute(addresses);


    }
}

你的API密钥在哪里？ 试试这个

C:\Program Files\Java\jdk1.7.0_04\bin>keytool.exe -V -list -alias androiddebugkey -keystore "C:\Documents and Settings\IBM\.android\debug.keystore" -storepass android -keypass android

考虑第一个路径中的jdk bin路径和第二个路径中的主用户目录。对于windows 7，它类似于ec:\Users\username\.android\debug.keystore

使用上述命令，您将获得所有密钥

然后 在我看来，将地图移动到某个点是通过调用GoogleMap对象的moveCamera方法完成的：

从例子中可以看出

如您所见，创建LatLng对象需要纬度和经度坐标。我相信你可以使用谷歌的地点搜索，通过http请求获得这些坐标。例如：

https://maps.googleapis.com/maps/api/place/textsearch/xml?query=restaurants+in+Sydney&sensor=true&key=AddYourOwnKeyHere

取自

这将为您返回JSON数据

有关自动完成，请参见链接

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编辑：Wops，位置搜索将返回xml，请尝试使用…json？query=。。。相反，在我的代码中，当使用textsearch url时，Json不会显示在logcat中 我的上述代码中有什么问题

---

10-06 09:50:56.391:I/System.out19964:GeocoderTask latlnglat/lng:19.0759837,72.8776559 10-06 09:50:56.395:I/System.out19964:AddressText====>>>印度马哈拉施特拉邦孟买 10-06 09:50:56.399:I/System.out19964:HttpRes响应-->>>>>，印度马哈拉施特拉邦&key=AIzaSyAoXVbnsD_AV8ejPliFjT3vIEtEXsv1lPc 10-06 09:50:56.399:I/System.out19964:Addresstext响应-->>>>空

---

10-06 09:50:56.399:I/System.out19964:Geocoder doInBackground response null

10-06 09:50:56.391:I/System.out19964:GeocoderTask latlnglat/lng:19.0759837,72.8776559 10-06 09:50:56.395:I/System.out19964:AddressText===>>印度马哈拉施特拉邦孟买10-06:50:56.399:I/System.out19964:HTPRES response-->，马哈拉施特拉邦，India&key=AIZASYAOXVBNSDAV8EJPLIFJT3VIETEXV1LPC 10-06 09:50:56.399:I/System.out19964:Addresstext response-->>>>null 10-06 09:50:56.399:I/System.out19964:Geocoder doInBackground response null

private class GeocoderTask extends AsyncTask<String, Void, String>{

      String location,response1= null;

      String addressText;
    /**********************************************************/
    public GeocoderTask(String location) {
        this.location=location;
    }

    @Override
    protected void onPreExecute() {

         myServiceToHttp= new MyServiceToHttp();
         List<Address> addresses = null;
         Geocoder geocoder = new Geocoder(getBaseContext());    
    /**********************************************************/
        try {
            addresses = geocoder.getFromLocationName(location,1000 );


        } catch (IOException e) {
            e.printStackTrace();
        }

        if(addresses==null || addresses.size()==0){
            Toast.makeText(getBaseContext(), "No Location found", Toast.LENGTH_SHORT).show();
            googleMap.clear();
        }
        else {
            if(addresses.size()>0)
                for(int i=0;i<addresses.size();i++){
                    Address address = (Address) addresses.get(i);
                    // Creating an instance of GeoPoint, to display in Google Map
                    latLng = new LatLng(address.getLatitude(), address.getLongitude());
                    lat = address.getLatitude();
                    lng = address.getLongitude();
                    addressText = String.format("%s, %s",address.getMaxAddressLineIndex() > 0 ? address.getAddressLine(0) : "",address.getCountryName());

                    System.out.println(" GeocoderTask latlng" +latLng);

                    Toast.makeText(getApplicationContext(), "latlng" +String.valueOf(latLng), Toast.LENGTH_SHORT).show();
                    Toast.makeText(getApplicationContext(), "Geolat == "+lat+ "Geolng == " +lng, Toast.LENGTH_SHORT).show();

                    System.out.println("AddressText===>>>" +addressText);

                    Toast.makeText(getApplicationContext(), "addressText"+addressText, Toast.LENGTH_SHORT).show();

                    marker = new MarkerOptions();
                    marker.position(latLng);
                    marker.title(addressText);

                    googleMap.addMarker(marker);
                    // Locate the first location
                    if(i==0){

                        CameraPosition cameraPosition = new CameraPosition.Builder()
                        .target(latLng)             // Sets the center of the map to Mountain View
                        .zoom(10)                   // Sets the zoom
                        .bearing(40)                // Sets the orientation of the camera to east
                        .tilt(5)                    // Sets the tilt of the camera to 30 degrees
                        .build();                   // Creates a CameraPosition from the builder
                        googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));

                    }


                }

        }


        super.onPreExecute();
    }


    @Override
    protected String doInBackground(String... locationName) {


            response1 = myServiceToHttp.makeServiceCall("https://maps.googleapis.com/maps/api/place/textsearch/json?query="+addressText+"&key=YOUR SERVER KEY",MyServiceToHttp.GET);

            String HttpRes = "https://maps.googleapis.com/maps/api/place/textsearch/json?query="+addressText+"&key=YOUR SERVER KEY";
            System.out.println("HttpRes response---->>>>" +HttpRes);
            System.out.println("Addresstext response---->>>>" +response1);

            if (response1!=null) {

                try {

                      JSONObject jsonObject=new JSONObject(response1);
                      System.out.println("Json==>>>>"+jsonObject);
                      JSONArray array=jsonObject.getJSONArray("results");
                      System.out.println("JsonArray==>>>"+array);

                    } 
                    catch (JSONException e) 
                    {
                    e.printStackTrace();
                   }

            }
            else
            {
                System.out.println("Geocoder doInBackground response null");
            }



        return response1;
    }

    @Override
    protected void onPostExecute(String addresses) {

        Toast.makeText(getApplicationContext(), addresses, Toast.LENGTH_SHORT).show();

        super.onPostExecute(addresses);


    }
}