title: Android AsyncTask: start new Activity in onPostExecute()
body: <p>public class HttpHelper extends AsyncTask> {
      ArrayList list = new ArrayList();</p>
  
  <pre><code>@Override
  protected ArrayList&lt;String&gt; doInBackground(String... urls) {
      // TODO Auto-generated method stub
  
      String result="";
      for(String url:urls)
      {
          HttpClient client = new DefaultHttpClient();
          HttpGet request = new HttpGet(url);
          try
          {
              HttpResponse response = client.execute(request);
              InputStream in = response.getEntity().getContent();
              BufferedReader br = new BufferedReader(new InputStreamReader(in));
              String line = null;
              StringBuffer sb = new StringBuffer();
              while((line = br.readLine())!=null)
              {
                  sb.append(line+"\n");
  
              }
              in.close();
              result = sb.toString();
              String pageSource = new String(result);
              int startindex = pageSource.indexOf("pdf_doc/");
               String str="";
              String []temp;
               while(startindex !=-1)
               {
                   int endindex = pageSource.indexOf(".pdf",startindex);
                   str = pageSource.substring(startindex+8, endindex);
                   String delimiter = "%20";
                   String value="";
                   temp = str.split(delimiter)  ;
                   for(int i=0;i&lt;temp.length;i++)
                   {
                       value= value+temp[i]+" ";
  
                   }
  
                   list.add(value);
                   startindex = pageSource.indexOf("pdf_doc/",endindex);
              }
          }
  
  
          catch(Exception ex)
          {
              Log.e("Error in HTML Reading",ex.getMessage());
  
          }
  
      }
  
      return list;
  
  }
  
  @Override
  protected void onPostExecute(ArrayList&lt;String&gt; result) {
      // TODO Auto-generated method stub
  
         // Here  i want to start new UI that use the result of AsyncTask
  }
  </code></pre>
  
  <p>}</p>
  
  <p>In this code i read the data from the server through AsyncTask and the result should be in the new UI.That means i want to start new Activity from onPostExecute().</p>