OnClick 打开 URL (Json, ListView) Android

Posted 2023-05-07

【中文标题】OnClick 打开 URL (Json, ListView) Android

【英文标题】：OnClick open URL (Json, ListView) Android

【发布时间】：2015-10-30 01:33:34

【问题描述】：

你好，我在 json 中有一个项目列表（listview），代码如下：

listView = (ListView) v.findViewById(R.id.list);
    adapter = new CustomListAdapter(getActivity(), movieList);
    listView.setAdapter(adapter);

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

    // 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();

        
    );

这是 Json 文件：

"title": "Dawn of the Planet of the Apes",
    "image": "http://api.androidhive.info/json/movies/1.jpg",
    "rating": 8.3,
    "releaseYear": 2014,
    "genre": ["Action", "Drama", "Sci-Fi"]
,

    "title": "District 9",
    "image": "http://api.androidhive.info/json/movies/2.jpg",
    "rating": 8,
    "releaseYear": 2009,
    "genre": ["Action", "Sci-Fi", "Thriller"]
,

    "title": "Transformers: Age of Extinction",
    "image": "http://api.androidhive.info/json/movies/3.jpg",
    "rating": 6.3,
    "releaseYear": 2014,
    "genre": ["Action", "Adventure", "Sci-Fi"]
,

    "title": "X-Men: Days of Future Past",
    "image": "http://api.androidhive.info/json/movies/4.jpg",
    "rating": 8.4,
    "releaseYear": 2014,
    "genre": ["Action", "Sci-Fi", "Thriller"]
,

我想在 json 的每个项目中添加一个链接，例如 "url": "http://google.com" 并且应用程序打开链接 (Action_VIEW)。对不起我的英语。

【参考方案1】：

请查看：

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"));

                           movie.setUrlLink("http://google.com");

                            // 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);

                        

对于 Action View：将这些代码放在 Click Listner 中：

startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(movie.getUrlLink())));

注意：我想你知道如何从 bean 中获取数据。

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