Volley adapter for making XML Requests. It uses Simple-XML for serializing XML to Objects (http://simple.sourceforge.net/). Code is based of GsonRequest. Hope someone finds it useful.

SimpleXmlRequest.java

import java.io.UnsupportedEncodingException;
import java.util.Map;

import org.simpleframework.xml.Serializer;
import org.simpleframework.xml.core.Persister;

import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.ParseError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.Response.ErrorListener;
import com.android.volley.Response.Listener;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.HttpHeaderParser;


/**
 * Simple Volley Class for doing XML HTTP Requests which are parsed 
 * into Java objects by Simple @see {{@link http://simple.sourceforge.net/}
 */
public class SimpleXmlRequest<T> extends Request<T> {
    
    private static final Serializer serializer = new Persister();
    private final Class<T> clazz;
    private final Map<String, String> headers;
    private final Listener<T> listener;
 
    
    /**
     * Make HTTP request and return a parsed object from Response
     * Invokes the other constructor. 
     * 
     * @see SimpleXmlRequest#SimpleXmlRequest(int, String, Class, Map, Listener, ErrorListener)
     */
    public SimpleXmlRequest(int method, String url, Class<T> clazz, 
    		Listener<T> listener, ErrorListener errorListener) {
        this(method, url, clazz, null, listener, errorListener);
    }
    
    
    /**
     * Make HTTP request and return a parsed object from XML Response
     *
     * @param url URL of the request to make
     * @param clazz Relevant class object
     * @param headers Map of request headers
     * @param listener
     * @param errorListener
     * 
     */
    public SimpleXmlRequest(int method, String url, Class<T> clazz, Map<String, String> headers,
            Listener<T> listener, ErrorListener errorListener) {    	
        super(method, url, errorListener);        
        this.clazz = clazz;
        this.headers = headers;
        this.listener = listener;
    }    

    
    @Override
    public Map<String, String> getHeaders() throws AuthFailureError {
        return headers != null ? headers : super.getHeaders();
    }
 
    
    @Override
    protected void deliverResponse(T response) {
        listener.onResponse(response);
    }
 
    
    @Override
    protected Response<T> parseNetworkResponse(NetworkResponse response) 
    {
        try {
            
       	    String data = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
            return Response.success(serializer.read(clazz, data), 
            			    HttpHeaderParser.parseCacheHeaders(response));
        } 
        catch (UnsupportedEncodingException e) {
            return Response.error(new ParseError(e));
        } 
        catch (Exception e) {
			return Response.error(new VolleyError(e.getMessage()));
		} 
    }
}

Hi,
I when I am running my app I am getting this

I/dalvikvm﹕ Could not find method javax.xml.stream.XMLInputFactory.newInstance, referenced from method org.simpleframework.xml.stream.StreamProvider.<init>
W/dalvikvm﹕ VFY: unable to resolve static method 14456: Ljavax/xml/stream/XMLInputFactory;.newInstance ()Ljavax/xml/stream/XMLInputFactory; 
W/dalvikvm﹕ VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLEventReader;)
W/dalvikvm﹕ VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLEventReader;)
I/dalvikvm﹕ Could not find method javax.xml.stream.XMLInputFactory.createXMLEventReader, referenced from method org.simpleframework.xml.stream.StreamProvider.provide
VFY: unable to resolve virtual method 14453: Ljavax/xml/stream/XMLInputFactory;.createXMLEventReader (Ljava/io/InputStream;)Ljavax/xml/stream/XMLEventReader;
Could not find method javax.xml.stream.XMLInputFactory.createXMLEventReader, referenced from method org.simpleframework.xml.stream.StreamProvider.provide
VFY: unable to resolve virtual method 14454: Ljavax/xml/stream/XMLInputFactory;.createXMLEventReader (Ljava/io/Reader;)Ljavax/xml/stream/XMLEventReader;

Is this because I don't use stax-1.2.0.jar , stax-api-1.0.1.jar , xpp3-1.1.3_8.jar ?

For the ones having the same problem as @ArcturusArc (just above me), you don't really need to worry about those messages.. if you want to know why, here you have a good reading https://robertmassaioli.wordpress.com/2011/04/21/simple-xml-in-android-1-5-and-up/ .

The first time I used this SimpleXMLRequest class I was getting those messages too, and I though that they were the reason why I wasn't getting the serialized object I wanted from the request. Anyway, I was wrong, I just forgot to define some attributes in my POJO's, so please make sure your POJO's are well defined too.

A quick note to itsalif.. This class works very well, thanks for sharing!

Hi,
how can I send xml data using volley?

How to send xml request in volley as mentioned in above picture ?

Hello ,
I have following response

<APIGetCitiesResponse xmlns="http://tempuri.org/">
    <APIGetCitiesResult xmlns:a="http://schemas.datacontract.org/2004/07/CRS2011AgentApi" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
        <a:CityPair>
            <a:FromCityID>1</a:FromCityID>
            <a:FromCityName>Ahmedabad</a:FromCityName>
            <a:ToCityID>10</a:ToCityID>
            <a:ToCityName>Amreli</a:ToCityName>
        </a:CityPair>
        <a:CityPair>
            <a:FromCityID>1</a:FromCityID>
            <a:FromCityName>Ahmedabad</a:FromCityName>
            <a:ToCityID>57</a:ToCityID>
            <a:ToCityName>Ankleshwar</a:ToCityName>
        </a:CityPair>
</APIGetCitiesResult>
</APIGetCitiesResponse>

How to handle it ??

Can anybody help me out??.. its urgent : (

how to send POST request with XML parameter? TIA