I'm filling a lazy loaded listview with items from a Json and it only shows the first item, without the image, not showing the rest of the items. I'm using AsyncTask to load my items to my listview. Can somebody PLEASE help me solve this problem.
Here is my LatesAlbums class:
public class LatestAlbums extends FragmentActivity {
// widgets
private ListView list;
private ImageView back, clear;
private EditText find;
private static String url = "jsonURL";
// JSON Node names
private static final String TAG_ALBUMS = "albums";
private static final String TAG_ID = "id";
private static final String TAG_NAME = "name";
private static final String TAG_SINGER = "singer";
private static final String TAG_GENRE = "genre";
private static final String TAG_MIX = "mix";
private static final String TAG_THUMB = "thumb";
private static final String TAG_SONGS = "songs";
private static final String TAG_SONG_TITLE = "song";
private static final String TAG_SONG_ARTIST = "artist";
private static final String TAG_SONG_MP3 = "mp3";
private static final String TAG_SONG_MP4 = "mp4";
private static final String TAG_SONG_THUMB = "thumb";
private ProgressDialog pdialog;
// albums JSONArray
private JSONArray albums;
private JSONArray sngs;
private ArrayList<Albums> albumsArray;
private ArrayList<Songs> songsArray;
private AlbumLazyAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.latest_albums);
albumsArray = new ArrayList<Albums>();
songsArray = new ArrayList<Songs>();
try {
loadJSON();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// initWidgets();
}
private void initWidgets() {
list = (ListView) findViewById(R.id.listView1);
back = (ImageView) findViewById(R.id.latest_back_img);
clear = (ImageView) findViewById(R.id.latest_search_clear);
clear.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
find.setText("");
find.clearFocus();
find.clearComposingText();
clear.setVisibility(View.INVISIBLE);
}
});
find = (EditText) findViewById(R.id.latest_search_et);
back.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
adapter = new AlbumLazyAdapter(this, albumsArray, this);
// set list view adapter
list.setAdapter(adapter);
// setting find edit text searching method
find.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
clear.setVisibility(View.VISIBLE);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
for (int i = 0; i < albumsArray.size(); i++) {
if (albumsArray.get(i).getTAG_NAME().toLowerCase()
.indexOf(find.getText().toString().toLowerCase()) != -1) {
Log.v("--", albumsArray.get(i).getTAG_NAME());
} else {
Log.v("--", "no results..");
}
}
}
});
}
@Override
protected void onResume() {
super.onResume();
initWidgets();
}
// load json from server via asyncTask
public void loadJSON() throws JSONException {
AsyncTask<Void, Void, Void> task = new AsyncTask<Void, Void, Void>() {
@Override
protected void onPreExecute() {
super.onPreExecute();
initWidgets();
pdialog = new ProgressDialog(LatestAlbums.this);
pdialog.setMessage("Loading ....");
pdialog.show();
}
@Override
protected Void doInBackground(Void... params) {
JSONParser jParser = new JSONParser();
JSONObject json = jParser.getJSONFromUrl(url);
JSONObject theJSON;
try {
// Getting Array of albums
theJSON = json.getJSONObject("json");
albums = theJSON.getJSONArray(TAG_ALBUMS);
// looping through All albums
for (int i = 0; i < albums.length(); i++) {
JSONObject c = albums.getJSONObject(i);
String album_id = c.getString(TAG_ID);
String album_name = c.getString(TAG_NAME);
String album_singer = c.getString(TAG_SINGER);
String album_mix = c.getString(TAG_MIX);
String album_genre = c.getString(TAG_GENRE);
String album_thumb = c.getString(TAG_THUMB);
albumsArray.add(new Albums(album_id, album_name,
album_singer, album_genre, album_mix,
album_thumb, songsArray));
sngs = c.getJSONArray(TAG_SONGS);
// getting songs for the album
if (!sngs.isNull(0)) {
for (int j = 0; j < sngs.length(); j++) {
JSONObject songs = sngs.getJSONObject(j);
String song_artist = songs
.getString("artist");
String song_mp3 = songs.getString(TAG_SONG_MP3);
String song_mp4 = songs.getString(TAG_SONG_MP4);
String song_thumb = songs
.getString(TAG_SONG_THUMB);
String song_title = songs
.getString(TAG_SONG_TITLE);
songsArray.add(new Songs(song_title,
song_artist, song_mp3, song_mp4,
song_thumb));
}
}
albumsArray.get(i).setSongs(songsArray);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
list.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v,
int position, long arg3) {
Intent i = new Intent(getBaseContext(),
AlbumDetails.class);
i.putExtra("songs", albumsArray.get(position)
.getSongs());
startActivity(i);
}
});
// setting the slider
ViewPager pager = (ViewPager) findViewById(R.id.my_slider);
FragmentManager fm = getSupportFragmentManager();
MyFragmentPagerAdapter pagerAdapter = new MyFragmentPagerAdapter(
fm, albumsArray);
pager.setAdapter(pagerAdapter);
pdialog.dismiss();
adapter.notifyDataSetChanged();
}
};
task.execute();
}
}
And my Json output:
{
"json":{
"albums":[{"id":"1","name":"Best Sumer colections","singer":"Dj Tiresto","genre":"Trance","mix":"yes","thumb":"alb1.png","songs":
[
{"song":"Nothins else1","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else2","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else3","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else4","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else5","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else6","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
]
},
{"id":"2","name":"Best Sumer colections","singer":"Dj Tiresto","genre":"Trance","mix":"yes","thumb":"alb1.png","songs":
[
{"song":"Nothins else1","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else2","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else3","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else4","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else5","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else6","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
]
},
{"id":"3","name":"O viatza","singer":"Maria Bieshu","genre":"Trance","mix":"no","thumb":"alb1.png","songs":
[
{"song":"Nothins else1","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else2","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else3","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else4","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else5","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else6","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
]
},
{"id":"4","name":"De petrecere","singer":"Gerghe tzopa","genre":"Trance","mix":"no","thumb":"alb1.png","songs":
[
{"song":"Nothins else1","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else2","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else3","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else4","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else5","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else6","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
]
},
{"id":"5","name":"De petrecere","singer":"Gerghe tzopa","genre":"Trance","mix":"no","thumb":"alb1.png","songs":
[
{"song":"Nothins else1","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else2","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else3","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else4","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else5","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else6","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
]
},
{"id":"6","name":"De petrecere 2013","singer":"Gerghe tzopa","genre":"Trance","mix":"no","thumb":"alb1.png","songs":
[
{"song":"Nothins else1","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else2","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else3","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else4","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else5","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
{"song":"Nothins else6","artist":"ionsuruceanu","mp3":"mp3_URL","mp4":"mp4_URL","thumb":"alb1.png"},
]
}
]
}
}
LogCat output:
04-02 13:35:12.109: W/System.err(12798): org.json.JSONException: Value at 6 is null.
04-02 13:35:12.119: W/System.err(12798): at org.json.JSONArray.get(JSONArray.java:259)
04-02 13:35:12.119: W/System.err(12798): at org.json.JSONArray.getJSONObject(JSONArray.java:480)
04-02 13:35:12.119: W/System.err(12798): at com.outsourcefarm.musicagratis.activities.LatestAlbums$4.doInBackground(LatestAlbums.java:188)
04-02 13:35:12.119: W/System.err(12798): at com.outsourcefarm.musicagratis.activities.LatestAlbums$4.doInBackground(LatestAlbums.java:1)
04-02 13:35:12.119: W/System.err(12798): at android.os.AsyncTask$2.call(AsyncTask.java:264)
04-02 13:35:12.119: W/System.err(12798): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
04-02 13:35:12.119: W/System.err(12798): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
04-02 13:35:12.129: W/System.err(12798): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208)
04-02 13:35:12.129: W/System.err(12798): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
04-02 13:35:12.129: W/System.err(12798): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
04-02 13:35:12.129: W/System.err(12798): at java.lang.Thread.run(Thread.java:856)
Line 188 is JSONObject songs = sngs.getJSONObject(j);
