Android 如何使用截取解析JSON?

Android 如何使用截取解析JSON?,android,json,parsing,android-volley,Android,Json,Parsing,Android Volley,我想用 我的代码是: public class MainActivity extends Activity { // Log tag private static final String TAG = MainActivity.class.getSimpleName(); // Movies json url private static final String url = "http://api.androidhive.info/json/movies.js

我想用

我的代码是:

public class MainActivity extends Activity {
    // Log tag
    private static final String TAG = MainActivity.class.getSimpleName();

    // Movies json url
    private static final String url = "http://api.androidhive.info/json/movies.json";
    private ProgressDialog pDialog;
    private List<Movie> movieList = new ArrayList<Movie>();
    private ListView listView;
    private CustomListAdapter adapter;

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

        listView = (ListView) 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);
                        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);
        int i = 1;
        return true;
    }

}
公共类MainActivity扩展活动{
//日志标签
私有静态最终字符串标记=MainActivity.class.getSimpleName();
//电影json url
私有静态最终字符串url=”http://api.androidhive.info/json/movies.json";
私人对话;
private List movieList=new ArrayList();
私有列表视图列表视图;
专用自定义列表适配器;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView=(listView)findViewById(R.id.list);
adapter=新的CustomListAdapter(此,movieList);
setAdapter(适配器);
pDialog=新建进度对话框(此对话框);
//在发出http请求之前显示进度对话框
设置消息(“加载…”);
pDialog.show();
//更改操作栏颜色
getActionBar().setBackgroundDrawable(
新的可着色(Color.parseColor(#1b1b1b”);
//创建截击请求对象
JsonArrayRequest movieReq=newjsonarrayrequest(url,new Response.Listener(){
@凌驾
公共void onResponse(JSONArray响应){
Log.d(TAG,response.toString());
hidePDialog();
//解析json
对于(int i=0;i
这段代码来自androidhive,但我不知道如何解析json(我的)

那么,如何解析json呢?

试试这个:

    String url = "http://api.giphy.com/v1/gifs/search?q=funny+cat&api_key=dc6zaTOxFJmzC";
    StringRequest stringRequest = new StringRequest(url, new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {
            try {
                JSONObject jsonObject = new JSONObject(response);
                JSONArray jsonArray = jsonObject.getJSONArray("data");
                for (int i = 0; i < jsonArray.length(); i++) {
                    JSONObject jo = jsonArray.getJSONObject(i);
                    // Do you fancy stuff
                    // Example: String gifUrl = jo.getString("url");
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            // Anything you want
        }
    });
    RequestQueue requestQueue = Volley.newRequestQueue(getApplicationContext());
    requestQueue.add(stringRequest);
stringurl=”http://api.giphy.com/v1/gifs/search?q=funny+cat&api_key=dc6zaTOxFJmzC”;
StringRequest StringRequest=新的StringRequest(url,new Response.Listener()){
@凌驾
公共void onResponse(字符串响应){
试一试{
JSONObject JSONObject=新JSONObject(响应);
JSONArray JSONArray=jsonObject.getJSONArray(“数据”);
for(int i=0;i
可能的重复项您可以使用
JsonObjectRequest
而不是
StringRequest
;)保存解析行)看看吧,是的,我知道:DIt没有给出任何错误,但它也没有显示json。我的代码是:}}},new Response.ErrorListener(){@Override public void onErrorResponse(VolleyError error){//Anything you want});AppController.getInstance().addToRequestQueue(stringRequest);RequestQueue RequestQueue=Volley.newRequestQueue(getApplicationContext());requestQueue.add(stringRequest);}你能将你的活动代码快速粘贴吗?谢谢