Question

I am parsing XML with DOM i have some data tags like:

<data>
    <option>abc</option>
    <option>ijk</option>
    <option>fgh</option>
    <option>njk</option>
    <option>klj</option>
    <option>opi</option>
</data>
<data>
    <option>abc</option>
    <option>ijk</option>
    <option>fgh</option>
    <option>njk</option>
    <option>klj</option>
    <option>opi</option>
</data>

I want to insert the options in the list in my layout how can I do the same pls tell. I want that it just parse data of first block and for the next it asks for the trigger event like by clickin on a button.

Thanx in advance.

Answer 1

Since you want to parse partial XML data, it would be better to use the XmlPullParser.

You would need to have a method that reads one block at a time keeping a reference to the parser as a member variable.

public class PartialXmlParser{
    private XmlPullParser xpp;

    public PartialXmlParser(String xml){
         XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
         factory.setNamespaceAware(true);
         xpp = factory.newPullParser();

         xpp.setInput( new StringReader (xml ) );
    }

    public List<String> getData(){
        List<String> retValue = new List<String>();
        //Logic to read one block of data and add to retValue
        //
        return retValue;

    }
}

and call the getData method in the callback event (like OnClick of the button). Remember to use the same instance of the object for getting the data.