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    <p>When you are trying to do some operations with a web service in Android, you have to use AsyncTask to prevent the network on main thread error, here's a sample code I used when uploading something:</p> <pre><code>public class PostDataAsyncTask extends AsyncTask&lt;String, String, String&gt; { protected void onPreExecute() { super.onPreExecute(); // do stuff before posting data } @Override protected String doInBackground(String... strings) { try { // 1 = post text data, 2 = post file int actionChoice = 2; // post a text data if(actionChoice==1){ postText(); } // post a file else{ postFile(); } } catch (NullPointerException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } return null; } @Override protected void onPostExecute(String lenghtOfFile) { // do stuff after posting data } // this will post our text data private void postText(){ try{ // url where the data will be posted String postReceiverUrl = "http://yourdomain.com/post_data_receiver.php"; Log.v(TAG, "postURL: " + postReceiverUrl); // HttpClient HttpClient httpClient = new DefaultHttpClient(); // post header HttpPost httpPost = new HttpPost(postReceiverUrl); // add your data List&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(2); nameValuePairs.add(new BasicNameValuePair("firstname", "Mike")); nameValuePairs.add(new BasicNameValuePair("lastname", "Dalisay")); nameValuePairs.add(new BasicNameValuePair("email", "mike@testmail.com")); httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); // execute HTTP post request HttpResponse response = httpClient.execute(httpPost); HttpEntity resEntity = response.getEntity(); if (resEntity != null) { String responseStr = EntityUtils.toString(resEntity).trim(); Log.v(TAG, "Response: " + responseStr); // you can add an if statement here and do other actions based on the response } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } } </code></pre> <p>How the AsyncTask was used:</p> <pre><code>new PostDataAsyncTask().execute(); </code></pre> <p><a href="http://www.codeofaninja.com/2013/04/android-http-client.html" rel="nofollow">Here's a reference for you.</a></p>
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    1. COThank you for your answer @Emkey, should I use the function call - new PostDataAsyncTask().execute(); inside onCreate() method, after calling setcontentView()?
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    2. CO@nki: Yes you are correct. or in any method where you need it.
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    3. COI did what you have said. But also getting the same error. 09-03 05:08:22.818: E/AndroidRuntime(1832): FATAL EXCEPTION: AsyncTask #1 09-03 05:08:22.818: E/AndroidRuntime(1832): java.lang.RuntimeException: An error occured while executing doInBackground() 09-03 05:08:22.818: E/AndroidRuntime(1832): at android.os.AsyncTask$3.done(AsyncTask.java:299) 09-03 05:08:22.818: E/AndroidRuntime(1832): Caused by: java.lang.NoClassDefFoundError: org.ksoap2.serialization.SoapObject at com.example.updatesnew.MainActivity$SoapAccessTask.doInBackground(MainActivity.java:48)
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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