Question

我正在寻找解决方案，但我无法解决。

那就是我的JSON

{＆＃34;错误＆＃34;：＆＃34;＆＃34;＆＃34; Filme＆＃34;：[{ ＆＃34;标题＆＃34;：＆＃34;人猿星球的黎明＆＃34;，＆＃34;图像＆＃34;：＆＃34; http://api.androidhive.info/json/movies/1.jpg＆＃34;，＆＃34;评级＆＃34;：8.3，＆＃34; releaseYear＆＃34;：2014，＆＃34;流派＆＃34;：[＆＃34;行动＆＃34;，＆＃34;戏剧＆＃34;，＆＃34;科幻＆＃34;] }， { ＆＃34; title＆＃34;：＆＃34; District 9＆＃34;，＆＃34;图像＆＃34;：＆＃34; http://api.androidhive.info/json/movies/2.jpg＆＃34;，＆＃34;评分＆＃34;：8，＆＃34; releaseYear＆＃34;：2009，＆＃34;流派＆＃34;：[＆＃34;行动＆＃34;，＆＃34;科幻＆＃34;，＆＃34;惊悚＆＃34;] }， ... ... }]}

那是我的代码

// Movies json url
private static final String url = "https://d....url....";
private ProgressDialog pDialog;
private List<Movie> movieList = new ArrayList<Movie>();
private HorizontalListView listView;
private CustomListAdapter adapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    listView  = (HorizontalListView) findViewById(R.id.list);

    adapter = new CustomListAdapter(this, movieList);
    listView.setAdapter(adapter);

    pDialog = new ProgressDialog(this);
    // Showing progress dialog before making http request
    pDialog.setMessage("Loading...");
    pDialog.show();

    // changing action bar color
    getActionBar().setBackgroundDrawable(
            new ColorDrawable(Color.parseColor("#1b1b1b")));

    // Creating volley request obj
    JsonArrayRequest movieReq = new JsonArrayRequest(url ,new Response.Listener<JSONArray>() {
                @Override
                public void onResponse(JSONArray response) {
                    Log.d(TAG, response.toString());
                    hidePDialog();


                    // Parsing json
                    for (int i = 0; i < response.length(); i++) {
                        try {

                            JSONObject obj = response.getJSONObject(i).getJSONObject(TAG_MOVIE);
                            Movie movie = new Movie();
                            movie.setTitle(obj.getString("title"));
                            movie.setThumbnailUrl(obj.getString("image"));
                            movie.setRating(((Number) obj.get("rating"))
                                .doubleValue());
                            movie.setYear(obj.getInt("releaseYear"));

                             //Genre is json array
                            JSONArray genreArry = obj.getJSONArray("genre");
                            ArrayList<String> genre = new ArrayList<String>();
                            for (int j = 0; j < genreArry.length(); j++) {
                                genre.add((String) genreArry.get(j));
                            }
                            movie.setGenre(genre);

                            // adding movie to movies array
                            movieList.add(movie);

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

                    }

                    // notifying list adapter about data changes
                    // so that it renders the list view with updated data
                    adapter.notifyDataSetChanged();
                }
            }, new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    VolleyLog.d(TAG, "Error: " + error.getMessage());
                    hidePDialog();

                }
            });

    // Adding request to request queue
    AppController.getInstance().addToRequestQueue(movieReq);





}

@Override
public void onDestroy() {
    super.onDestroy();
    hidePDialog();
}

private void hidePDialog() {
    if (pDialog != null) {
        pDialog.dismiss();
        pDialog = null;
    }
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

}

但结果只是白色布局。我认为这是因为我的代码没有找到＆＃34; Filme＆＃34; JSON中的变量，但我不知道如何解决它。

任何想法？

谢谢！

Answer 1

＆＃34; Filme＆＃34;它不是JSONObject，它实际上是一个JSONArray。只需将其解析为JSONArray： - ）

编辑：

首先，使用StringRequest而不是JSONArray，因为你收到的东西不是JSONArray。

然后，一旦你有一个简单的字符串作为结果，做这样的事情：

        JSONObject root = new JSONObject(result);
        JSONArray films = root.getJSONArray("Filme");
        JSONObject obj;
        for (int i = 0; i < films.length(); i++) {
            obj = films.getJSONObject(i);

            //Put all the parsing for a single Movie JSONObject here
        }

Answer 2

这是我用“Kelevandos”帮助解决的问题。也许它可以帮助别人。

// Request a string response from the provided URL.
StringRequest movieReq = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
//Log.d(TAG, response.toString());
hidePDialog();

JSONObject root;
try {
root = new JSONObject(response);
JSONArray films = root.getJSONArray("Filme");
JSONObject obj;
for (int i = 0; i < films.length(); i++) {
obj = films.getJSONObject(i);

//Put all the parsing for a single Movie JSONObject here

Movie movie = new Movie();
movie.setTitle(obj.getString("title"));
movie.setThumbnailUrl(obj.getString("image"));
movie.setRating(((Number) obj.get("rating"))
.doubleValue());
movie.setYear(obj.getInt("releaseYear"));

// Genre is json array
 JSONArray genreArry = obj.getJSONArray("genre");
ArrayList<String> genre = new ArrayList<String>();
for (int j = 0; j < genreArry.length(); j++) {
genre.add((String) genreArry.get(j));
}
movie.setGenre(genre);

// adding movie to movies array
movieList.add(movie);

Json Parser与凌空图书馆

2 个答案: