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POonly Last Row is being Updated BY chaning data set value in CustomListView
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  1. POonly Last Row is being Updated BY chaning data set value in CustomListView
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    copied!<p>In the above piece of code i`m trying to update Imageresource in customListview using simpleadapter here the problem is whenever i Notifychngedataset() it update only Last row </p> <pre><code> public class HelloWorldActivity extends Activity { private ArrayList &lt;HashMap&lt;String, Object&gt;&gt; my; ArrayList&lt;String&gt; ImageList; /** Variable Declaration For Items Parsed from TwiterJson*/ private final String TEXT="text"; private final String USER="user"; private final String IMAGEURL="imageurl"; private final String URL="url"; private ListView listView; ArrayList&lt;String&gt; textItems; ArrayList&lt;String&gt; userlist; ArrayList&lt;String&gt; urllist; HashMap&lt;String, Object&gt; hm; String line; private String TAG="HelloWorldActivity"; private ProgressBar mProgressBar; View view; Simpleadapter adapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); listView = (ListView)findViewById(R.id.list); mProgressBar=(ProgressBar)findViewById(R.id.progressbar); // Call the Asynch Activity new AsynchTask().execute(); } /** SimpleAdapater Class Definition*/ public class Simpleadapter extends SimpleAdapter { public Simpleadapter(Context context, List&lt;? extends Map&lt;String, ?&gt;&gt; data, int resource, String[] from, int[] to) { super(context, data, resource, from, to); } @Override public View getView(int position, View convertView, ViewGroup parent) { view = super.getView(position, convertView, parent); final Button mButton=(Button)view.findViewById(R.id.gobutton); final ImageView mImageview=(ImageView) view.findViewById(R.id.image1); mImageview.setImageBitmap((Bitmap) my.get(position).get(IMAGEURL)); final int num=position; mButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse((String) my.get(num).get(URL)))); } }); return view; } } /**Inner Class for Background Task*/ private class AsynchTask extends AsyncTask&lt;Void, Integer, Void&gt; { URLConnection tc; BufferedReader in; URL twitter; int num=0; @Override protected void onPreExecute() { super.onPreExecute(); try { mProgressBar.setVisibility(View.VISIBLE); } catch (Exception e) { Log.e(TAG,""+e.getMessage()); } } @Override protected Void doInBackground(Void... params) { try{ twitter = new URL("http://twitter.com/statuses/public_timeline.json"); tc = twitter.openConnection(); my = new ArrayList&lt;HashMap&lt;String,Object&gt;&gt;(); ImageList=new ArrayList&lt;String&gt;(); in = new BufferedReader(new InputStreamReader( tc.getInputStream())); while ((line = in.readLine()) != null) { JSONArray ja = new JSONArray(line); Log.e("Length",""+ja.length()); for (int i = 0; i &lt; ja.length(); i++) { JSONObject jo = (JSONObject) ja.get(i); /**Data Insert into the HashMap Object*/ hm=new HashMap&lt;String, Object&gt;(); hm.put(TEXT,jo.getString("text")); hm.put(USER,jo.getJSONObject("user").getString("name")); hm.put(URL,"http://twitter.com/#!/"+jo.getJSONObject("user").getString("screen_name")); hm.put(IMAGEURL, BitmapFactory.decodeResource(HelloWorldActivity.this.getResources(), R.drawable.icon)); ImageList.add(jo.getJSONObject("user").getString("profile_image_url")); my.add(hm); } } } catch (Exception e) { e.printStackTrace(); } return null; } @Override protected void onProgressUpdate(Integer... values) { super.onProgressUpdate(values); } @Override protected void onPostExecute(Void result) { super.onPostExecute(result); mProgressBar.setProgress(0); mProgressBar.setVisibility(View.GONE); adapter= new Simpleadapter(HelloWorldActivity.this, my, R.layout.listcontent, new String[]{TEXT,USER}, new int[]{R.id.text2,R.id.text1}); listView.setAdapter(adapter); new AsynchTaskForImageLoading().execute(); } } /**Method to convert Url to the Bitmap*/ private Bitmap getDrawable_from_url(String url) { try{ Bitmap x; HttpURLConnection connection = (HttpURLConnection)new URL(url).openConnection(); connection.setRequestProperty("User-agent","Mozilla/4.0"); connection.connect(); InputStream input = connection.getInputStream(); x = BitmapFactory.decodeStream(input); return x; } catch (Exception e) { Log.e(TAG,""+e.getMessage()); return null; } } private class AsynchTaskForImageLoading extends AsyncTask&lt;Void, Bitmap,Void&gt; { @Override protected void onPreExecute() { super.onPreExecute(); } @Override protected Void doInBackground(Void... params) { for(int i=0;i&lt;ImageList.size();i++){ publishProgress(getDrawable_from_url(ImageList.get(i))); } return null; } @Override protected void onProgressUpdate(Bitmap... values) { super.onProgressUpdate(values); for (Bitmap value : values) { hm.put(IMAGEURL,value); adapter.notifyDataSetChanged(); } } @Override protected void onPostExecute(Void result) { super.onPostExecute(result); } } </code></pre> <p>` }// End of Main Activity Class</p> <p>i want to update each row`s Imageview but somehow it is updating only Last row of my Listview Recursively i can the changes that is changing images frequently of the last row...</p> <p>Thanks in Adnavce</p>
 

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