Parse xml data into hashtable and displaying in listview?
This is the xml file I'm trying to retrieve data from online: http://spark.opac.tp.edu.sg/X?op=present&set_no=007584&set_entry=000000001,000000002,000000003,000000004,000000005&format=marc
Below is my handler where i place my data into the hashtable:
ArrayList<Hashtable<String,String>> list = new ArrayList<Hashtable<String,String>>();
Hashtable<String,String> data = new Hashtable<String,String>();
private final String MY_DEBUG_TAG = "Debugging~";
private Boolean in_record = false;
private Boolean in_author = false;
private Boolean in_format = false;
private Boolean in_title = false;
private Boolean in_callNumber = false;
private String format = "";
private String title = "";
private String author = "";
private String callNumber = "";
//private SearchList sList;
//public SearchList getListData() {
// return this.sList;
//}
@Override
public void startDocument() throws SAXException {
// this.sList = new SearchList();
}
@Override
public void endDocument() throws SAXException {
// Nothing to do
}
/** Called when tag starts ( ex:- <name>AndroidPeople</name>
* -- <name> )*/
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
if(localName.equalsIgnoreCase("record")) {
this.in_record = true;
}
else
if (localName.equalsIgnoreCase("fixfield")) {
if (attributes.getValue("id").equalsIgnoreCase("FMT")) {
this.in_format = true;
}
}
else
if(localName.equalsIgnoreCase("varfield")) {
if(attributes.getValue("id").equalsIgnoreCase("100")) {
this.in_author = true;
}
else
if(attributes.getValue("id").equalsIgnoreCase("245")) {
this.in_title = true;
}
el开发者_如何学编程se
if(attributes.getValue("id").equalsIgnoreCase("099")) {
this.in_callNumber = true;
}
}
}
public void characters(char[] ch, int start, int length)
throws SAXException {
StringBuffer sb = new StringBuffer();
String finalString;
String originalString = "";
String chars = new String(ch, start, length);
chars = chars.trim();
if (this.in_format) {
sb.append(chars);
finalString = sb.toString();
this.format = finalString;
}
else
if (this.in_author) {
if(!(chars.equals(""))) {
sb.append(chars);
finalString = sb.toString();
originalString = this.author + finalString;
this.author = originalString;
}
}
else
if (this.in_title) {
if(!(chars.equals(""))) {
sb.append(chars);
finalString = sb.toString();
originalString = this.title + finalString;
this.title = originalString;
}
}
else
if (this.in_callNumber) {
if(!(chars.equals(""))) {
sb.append(chars);
finalString = sb.toString();
this.callNumber = finalString;
}
}
}
@Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
if (localName.equalsIgnoreCase("record")) {
this.in_record=false;
}
else
if (localName.equalsIgnoreCase("fixfield")) {
if (this.in_format) {
//set the foundCharacter to Hashtable
data.put("format", this.format);
//sList.setFormat(this.format);
Log.d(MY_DEBUG_TAG,"Format = " + this.format);
this.in_format = false;
}
}
else
if(localName.equalsIgnoreCase("varfield")) {
if (this.in_author) {
//set the foundCharacter to Hashtable
data.put("author", this.author);
//sList.setAuthor(this.author);
Log.d(MY_DEBUG_TAG,"Author = " + this.author);
this.in_author = false;
}
else
if (this.in_title) {
//set the foundCharacter to Hashtable
data.put("title", this.title);
//sList.setTitle(this.title);
Log.d(MY_DEBUG_TAG,"Title = " + this.title);
this.in_title = false;
}
else
if (this.in_callNumber) {
//set the foundCharacter to Hashtable
data.put("callNumber", this.callNumber);
//sList.setCallNumber(this.callNumber);
Log.d(MY_DEBUG_TAG,"Call Number = " + this.callNumber);
this.in_callNumber = false;
}
}
//add the hashtable into ArrayList
list.add(data);
}
Any suggestions guys?
I don't have time to read completly your code ...
But this is a simple example :
ListView myListView;
myListView = (ListView) findViewById(R.id.mylistview);
ArrayList<HashMap<String, String>> listItem = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map;
//load your data
String[][] items = database.getItems("Blog");
//check if the database was empty
if(items != null){
for(int i = 0; i < items[0].length; i++) {
map = new HashMap<String, String>();
map.put("pubdate", items[2][0]);
map.put("title", items[0][i]);
map.put("description", items[1][i]);
listItem.add(map);
}
//Creation of a SimpleAdapter to put items in your list (listitems) in your listview
// You need to have a xml file called list_full_news_item with elements
// called android:id="@+id/title" etc.
SimpleAdapter mSimpleAdaptor = new SimpleAdapter (this.getBaseContext(), listItem, R.layout.list_full_news_item,
new String[] {"pubdate", "title", "description"}, new int[] {R.id.itemPubdate, R.id.itemTitle, R.id.itemDescription});
//Assign to the listView the created adapter
myListView.setAdapter(mSimpleAdaptor);
}
Hope this will help you to understand.
You should not use the SAX Parser and use the Simple XML Library instead. It has the @ElementMap annotation for exactly this purpose. This turns your entire problem into one annotation and three lines of code to read the XML in. Look at my blog post on including the library in an android project and look at the Simple tutorial if you want to see how to use all of its cool features.
Edit: I just realised that I have answered this question before in one of your previous questions. I'm done trying to convince you to look into Simple XML; but please, stop posting essentially the exact same question in five different ways here; people have helped you already, give you answers and lead you in the right direction. It is now time to read more, experiment and learn.
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