Если быть точным, используйте его вот так
класс маршала
import org.ksoap2.serialization.Marshal;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlSerializer;
import java.io.IOException;
public class MarshalDouble implements Marshal {
public Object readInstance(XmlPullParser parser, String namespace, String name,
PropertyInfo expected) throws IOException, XmlPullParserException {
return Double.parseDouble(parser.nextText());
}
public void register(SoapSerializationEnvelope cm) {
cm.addMapping(cm.xsd, "double", Double.class, this);
}
public void writeInstance(XmlSerializer writer, Object obj) throws IOException {
writer.text(obj.toString());
}
}
the implementation
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.implicitTypes = true;
envelope.dotNet = true;
envelope.encodingStyle = SoapSerializationEnvelope.XSD;
envelope.setOutputSoapObject(request);
**MarshalDouble md = new MarshalDouble();
md.register(envelope);**