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POcannot create handler inside thread that has not called looper.prepare()
 

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  1. POcannot create handler inside thread that has not called looper.prepare()
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    <p>I have an Activity in which i m getting the results from XML via Async task. This is my code of the activity from which i am getting the prediction</p> <pre><code>@Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.activity_prediction); Past = (TextView) findViewById(R.id.textView1); Present = (TextView) findViewById(R.id.textView2); Future = (TextView) findViewById(R.id.textView3); new GetPrediction().execute(); } class GetPrediction extends AsyncTask &lt;Void, String, String&gt; { ProgressDialog dialog = new ProgressDialog(Prediction.this); @Override protected void onPreExecute() { // TODO Auto-generated method stub super.onPreExecute(); dialog.setMessage("Getting your fortune"); dialog.setCancelable(false); dialog.show(); } @Override protected String doInBackground(Void... b) { // TODO Auto-generated method stub try { URL website = new URL(baseUrl); SAXParserFactory spf = SAXParserFactory.newInstance(); SAXParser sp = spf.newSAXParser(); XMLReader xr = sp.getXMLReader(); HandlingXMLReading doingWork = new HandlingXMLReading(); // created object of default handler class xr.setContentHandler(doingWork); xr.parse(new InputSource(website.openStream())); past = doingWork.getPastPrediction(); present = doingWork.getPresentPrediction(); future = doingWork.getFuturePrediction(); } catch( Exception e) { past = e.getMessage(); present = e.getMessage(); future = e.getMessage(); } return past; } @Override protected void onPostExecute(String result) { // TODO Auto-generated method stub super.onPostExecute(result); dialog.dismiss(); Past.setText(result); Present.setText(present); Future.setText(future); } } } </code></pre> <p>Now this works fine, but the problem is when this Async task call the Default handler class It gives me the above error. In default handler class I made an object of a class from which I am getting some numbers. I am using that numbers to parse the XML. But when I removed That class object the code works fine. Here is the code of HandleXMLData.class</p> <pre><code>public class HandlingXMLReading extends DefaultHandler { // setting up the opbject XMLDataCollection prediction = new XMLDataCollection(); /*These next 4 lines gives the error of * cannot create the handler inside thread */ SelectionFuture CardNo = new SelectionFuture(); int PastCard = CardNo.pastCardNo; int PresentCard = CardNo.presentCardNo; int FutureCard = CardNo.FutureCardNo; /* Method Containing the Past Prediction*/ public String getPastPrediction() { return prediction.Past(); } /* Method Containing the Present Prediction*/ public String getPresentPrediction() { return prediction.Present(); } /* Method Containing the Past Prediction*/ public String getFuturePrediction() { return prediction.Future(); } @Override public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { // TODO Auto-generated method stub super.startElement(uri, localName, qName, attributes); if (localName.equals("overview_prediction1")){ String past = attributes.getValue("name"); prediction.setPast(past); } if (localName.equals("overview_prediction2")){ String present = attributes.getValue("name"); prediction.SetPresent(present); } if (localName.equals("overview_prediction3")){ String future = attributes.getValue("name"); prediction.SetFuture(future); } }} </code></pre> <p>I am not able to understand what is happening. Thanks In advance</p>
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    1. PTQuestion
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    1. USMohit Rakhra
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      1. POcannot create handler inside thread that has not called looper.prepare()
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      1. VTDownMod
    2. VO
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      1. POcannot create handler inside thread that has not called looper.prepare()
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      1. VTUpMod
    1. COmay be it is happening because i am calling a object of a class which have the working UI thread. But i want the values of the card so that i putup those numbers in the localname for XML parsing
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      1. POcannot create handler inside thread that has not called looper.prepare()
      1. USMohit Rakhra
    2. COTry moving your `HandlingXMLReading` instance outside the `AsyncTask` thread. Instantiate it in a class constructor of your `GetPrediction` class.
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      1. USNeil
    3. COcan you please edit this piece of code...
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      1. POcannot create handler inside thread that has not called looper.prepare()
      1. USMohit Rakhra
 

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