Volley library for Android parse xml response?

Question

I am using volley library and getting response in XML.I want to know how we can parse response using /volley library.Thank you.

Answer 1

First you have to get response string by:

  StringRequest req = new StringRequest(Request.Method.GET, url, 
new Response.Listener() 
{
    @Override
    public void onResponse(String response) {
         InputStream is = convertStringToDocument(reponse);
         // now you can parse xml 
    }
}, 
new Response.ErrorListener() 
{
     @Override
     public void onErrorResponse(VolleyError error) {                                
     // handle error response
   }
}

);

after getting respone via volley you have to convert String response to input stream by this method:

 private static InputStream convertStringToDocument(String xmlStr) {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder;
    try
    {
        builder = factory.newDocumentBuilder();
        Document doc = builder.parse( new InputSource( new StringReader( xmlStr ) ) );
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        Source xmlSource = new DOMSource(doc);
        Result outputTarget = new StreamResult(outputStream);
        TransformerFactory.newInstance().newTransformer().transform(xmlSource, outputTarget);
        InputStream is = new ByteArrayInputStream(outputStream.toByteArray());
        return is;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}