Hello everyone.
I am trying to get a hang of XML parsing and can't get this to show me the
right elements as I'm fairly new to Android/Java dev. Would appreciate
some guidance.
I've build a class that gets the custom xml url and needs to parse it and
fill ArrayList with values. After trying several versions I can't wrap my
head around parsing nodes and extracting element values.
This is what I have
DocumentBuilderFactory factory = DocumentBuilderFactory.*newInstance*();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(feedURL);
// get xml document root element
Element root = doc.getDocumentElement();
// get node list of all elements with tag name item
NodeList items = root.getElementsByTagName("item");
ArrayList<String[]> photoSet = *new* ArrayList<String[]>();
*for* (*int* i = 0; i < items.getLength(); i++) {
Node itemNode = items.item(i);
NodeList itemChildNodes = itemNode.getChildNodes();
Node itemChildNode = itemChildNodes.item(2);
String value = itemChildNode.getNodeValue();
Log.*d*("ITEM ELEMENT VALUE", "Node value for item["+i+"]
-> "+value);
}
here's what the XML looks like:
<gallery>
<item> <photoid>509</photoid> <url>
http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/320622_10150298438271744_326149431743_8468654_1542995730_n.jpg
</url> <title>Foster The People DC</title> <description></description>
<category></category> <dateupdated>2012-01-24 23:31:58</dateupdated>
<dateupdated2>Wed Jan 25 07:31:58 GMT-0800 2012</dateupdated2>
</item>
<item> <photoid>508</photoid> <url>
http://a8.sphotos.ak.fbcdn.net/hphotos-ak-ash4/308152_10150298438346744_326149431743_8468655_312468158_n.jpg
</url> <title>Foster The People Philly</title> <description></description>
<category></category> <dateupdated>2012-01-24 23:31:44</dateupdated>
<dateupdated2>Wed Jan 25 07:31:44 GMT-0800 2012</dateupdated2></item>
</gallery>
So now why I put itemChildNodes.item(2) is basically because I thought that
would give me back 3rd subchild element of that node which is in this case
<title> tag under <item> node
Would someone be kind enough to educate me on why this is not working and
what's the best way to do this. The reason I'm not using SAX is because
these XML files will be fairly small so I went with DocumentBuilder and
also I wanted to learn both ways.
Many thanks good people.
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