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PONullpointerexception in displaying image from json url Android
 

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  1. PONullpointerexception in displaying image from json url Android
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    <p>So here's the code I'm working on:</p> <pre><code>public class MainActivity extends ListActivity { // url to make request private static String url = "http://alyssayango.x10.mx/"; private static final String TAG_TYPE = "movie_type"; private static final String TAG_NAME = "movie_name"; private static final String TAG_LENGTH = "movie_length"; private static final String TAG_SCHEDULES = "movie_schedules"; private static final String TAG_CINEMA = "movie_cinema_number"; private static final String TAG_URL = "movie_image_url"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); MyTask task = new MyTask(MainActivity.this); task.execute(url); } public String readMovieSchedules(String url) { StringBuilder builder = new StringBuilder(); HttpClient client = new DefaultHttpClient(); HttpGet httpGet = new HttpGet(url); try { HttpResponse response = client.execute(httpGet); StatusLine statusLine = response.getStatusLine(); int statusCode = statusLine.getStatusCode(); if (statusCode == 200) { HttpEntity entity = response.getEntity(); InputStream content = entity.getContent(); BufferedReader reader = new BufferedReader(new InputStreamReader(content)); String line; while ((line = reader.readLine()) != null) { builder.append(line); } } else { Log.e(MainActivity.class.toString(), "Failed to download file"); } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return builder.toString(); } private class MyTask extends AsyncTask&lt;String, Void, String&gt;{ private ProgressDialog pd; public MainActivity activity; public MyTask(MainActivity a) { activity = a; } @Override protected String doInBackground(String... urls) { String stringtoparse=null; for (String url : urls) { stringtoparse = readMovieSchedules(url); // getting XML from URL } return stringtoparse; } @Override protected void onPreExecute() { // TODO Auto-generated method stub pd = new ProgressDialog(MainActivity.this); pd.setTitle("Downloading..."); pd.setMessage("Please wait."); pd.setCancelable(false); pd.setIndeterminate(true); pd.show(); super.onPreExecute(); } @Override protected void onPostExecute(String readMovieSchedules) { // Hashmap for ListView ArrayList&lt;HashMap&lt;String, String&gt;&gt; movieList = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); JSONArray jsonArray; try { jsonArray = new JSONArray(readMovieSchedules); Log.i(MainActivity.class.getName(), "Number of entries " + jsonArray.length()); for (int i = 0; i &lt; jsonArray.length(); i++) { JSONObject jsonObject = jsonArray.getJSONObject(i); Log.i(MainActivity.class.getName(), jsonObject.getString("movie_name")); // Storing each json item in variable String name = jsonObject.getString(TAG_NAME); String type = jsonObject.getString(TAG_TYPE); String length = jsonObject.getString(TAG_LENGTH); String cinema = jsonObject.getString(TAG_CINEMA); String schedules = jsonObject.getString(TAG_SCHEDULES); String url = jsonObject.getString(TAG_URL); // creating new HashMap HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(); // adding each child node to HashMap key =&gt; value map.put(TAG_NAME, name); map.put(TAG_TYPE, type); map.put(TAG_LENGTH, length); map.put(TAG_CINEMA, cinema); map.put(TAG_SCHEDULES, schedules); map.put(TAG_URL, url); // adding HashList to ArrayList movieList.add(map); /** * Updating parsed JSON data into ListView * */ THIS IS LINE 178 ListAdapter adapter = new CustomAdapter(MainActivity.this, movieList, R.layout.list_item, new String[] { TAG_NAME, TAG_CINEMA, TAG_SCHEDULES, TAG_URL }, new int[] { R.id.name, R.id.cinema, R.id.schedules, R.id.image }); setListAdapter(adapter); // selecting single ListView item ListView lv = getListView(); // Launching new screen on Selecting Single ListItem lv.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView&lt;?&gt; parent, View view, int position, long id) { // getting values from selected ListItem String name = ((TextView) view.findViewById(R.id.name)).getText().toString(); String cost = ((TextView) view.findViewById(R.id.cinema)).getText().toString(); String description = ((TextView) view.findViewById(R.id.schedules)).getText().toString(); String url = ((TextView) view.findViewById(R.id.image_)).getText().toString(); // Starting new intent Intent in = new Intent(getApplicationContext(), SingleMenuItemActivity.class); in.putExtra(TAG_NAME, name); in.putExtra(TAG_CINEMA, cost); in.putExtra(TAG_SCHEDULES, description); in.putExtra(TAG_URL, url); startActivity(in); } }); } } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } pd.dismiss(); super.onPostExecute(readMovieSchedules); } } private class CustomAdapter extends SimpleAdapter { public ImageLoader imageLoader; public LayoutInflater inflater = null; private Activity activity; private Context mContext; private URL url; private Bitmap bmp; public CustomAdapter(Context context, List&lt;? extends Map&lt;String, ?&gt;&gt; data, int resource, String[] from, int[] to) { super(context, data, resource, from, to); mContext = context; inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE); THIS IS LINE 238 imageLoader = new ImageLoader(activity.getApplicationContext()); } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { convertView = getLayoutInflater().inflate(R.layout.list_item, null); } HashMap&lt;String, Object&gt; data = (HashMap&lt;String, Object&gt;) getItem(position); TextView name = (TextView) convertView.findViewById(R.id.name); TextView cinema = (TextView) convertView.findViewById(R.id.cinema); TextView schedules = (TextView) convertView.findViewById(R.id.schedules); ImageView image = (ImageView) convertView.findViewById(R.id.image); String nameString = (String) data.get(TAG_NAME); String cinemaString = (String) data.get(TAG_CINEMA); String schedulesString = (String) data.get(TAG_SCHEDULES); String imageURL = (String) data.get(TAG_URL); name.setText(nameString); cinema.setText(cinemaString); schedules.setText(schedulesString); try { URL newURL = new URL(imageURL); bmp = BitmapFactory.decodeStream(newURL.openConnection().getInputStream()); image.setImageBitmap(bmp); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } imageLoader.DisplayImage(imageURL, (Activity)mContext, image); return convertView; } } } </code></pre> <p>I'm having an error/NullPointerException in these lines:</p> <pre><code> ListAdapter adapter = new CustomAdapter(MainActivity.this, movieList, R.layout.list_item, new String[] { TAG_NAME, TAG_CINEMA, TAG_SCHEDULES, TAG_URL }, new int[] { R.id.name, R.id.cinema, R.id.schedules, R.id.image }); </code></pre> <p>What is the thing that I'm missing in here? Any help is much appreciated. Thanks.</p> <p>UPDATED the Log FILE:</p> <pre><code> 07-25 10:39:58.564: E/AndroidRuntime(971): FATAL EXCEPTION: main 07-25 10:39:58.564: E/AndroidRuntime(971): java.lang.NullPointerException 07-25 10:39:58.564: E/AndroidRuntime(971): at com.say.stalucia.MainActivity$CustomAdapter.&lt;init&gt;(MainActivity.java:238) 07-25 10:39:58.564: E/AndroidRuntime(971): at com.say.stalucia.MainActivity$MyTask.onPostExecute(MainActivity.java:178) 07-25 10:39:58.564: E/AndroidRuntime(971): at com.say.stalucia.MainActivity$MyTask.onPostExecute(MainActivity.java:1) 07-25 10:39:58.564: E/AndroidRuntime(971): at android.os.AsyncTask.finish(AsyncTask.java:631) 07-25 10:39:58.564: E/AndroidRuntime(971): at android.os.AsyncTask.access$600(AsyncTask.java:177) 07-25 10:39:58.564: E/AndroidRuntime(971): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644) </code></pre> <p>Line 238:</p> <pre><code> imageLoader = new ImageLoader(activity.getApplicationContext()); </code></pre> <p>Line 178:</p> <pre><code> ListAdapter adapter = new CustomAdapter(MainActivity.this, movieList, </code></pre>
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    1. USneknek mouh
    1. USneknek mouh
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      1. PONullpointerexception in displaying image from json url Android
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      1. VTUpMod
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      1. USDunkey
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    1. COare you using that Url from top? because that page doesnt return anything. espacially no json.
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      1. USbofredo
    2. COI've updated my post, yes I'm using the URL from top. Please refresh it. thanks
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      1. PONullpointerexception in displaying image from json url Android
      1. USneknek mouh
    3. COcan you indicate line 238 and 178 in MainActivity file?
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      1. USOnur A.
 

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