这是我的xml数据
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<menu>
<item_category>
<category_name>ICECREAM</category_name>
<item>
<item_name>SOFTY</item_name>
<item_price>7.00</item_price>
</item>
<item>
<item_name>STICK</item_name>
<item_price>15.00</item_price>
</item>
<item>
<item_name>CONE</item_name>
<item_price>25.00</item_price>
</item>
</item_category>
<item_category>
<category_name>PIZZA</category_name>
<item>
<item_name>PIZZA-HOT</item_name>
<item_price>35.00</item_price>
</item>
<item>
<item_name>PIZZA-CRISPY</item_name>
<item_price>29.00</item_price>
</item>
</item_category>
</menu>
我想在列表视图中显示来自此xml的item_name和item_price
这是我的主要行为，我正在解析值
static final String URL = "http://192.168.1.112/dine/index.php/dineout/mob_view";
//static final String URL = "http://192.168.1.112/dineout/index.php/dineout/view";
// XML node keys
static final String KEY_MENU= "menu"; // parent node
//static final String KEY_ID = "foodjoint_id";
static final String KEY_CATEGORY= "category_name";
static final String KEY_ITEM_CATEGORY="item_category";
static final String KEY_ITEM= "item";
static final String KEY_ITEM_NAME= "item_name";
static final String KEY_PRICE= "item_price";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
XMLParser parser = new XMLParser();
String xml = parser.getXmlFromUrl(URL); // getting XML
Document doc = parser.getDomElement(xml);
// getting DOM element
NodeList n;
NodeList ncategories;
ncategories = doc.getElementsByTagName(KEY_MENU);
for(int i=0;i<ncategories.getLength();i++){
Element e = (Element)ncategories.item(i);
n=e.getElementsByTagName(KEY_ITEM_CATEGORY);
for(int c=0;c<n.getLength();c++){
HashMap<String, String> map = new HashMap<String, String>();
e=(Element)n.item(c);
Log.e("catname", parser.getValue(e, KEY_CATEGORY).toString());
map.put(KEY_CATEGORY, parser.getValue(e,KEY_CATEGORY));
NodeList ns=e.getElementsByTagName(KEY_ITEM);
for(int j=0;j<ns.getLength();j++){
e=(Element)ns.item(j);
Log.e("itemname", parser.getValue(e,KEY_ITEM_NAME).toString());
map.put(KEY_ITEM_NAME, parser.getValue(e, KEY_ITEM_NAME));
Log.e("itemprice", parser.getValue(e, KEY_PRICE).toString()+"\n");
map.put(KEY_PRICE, parser.getValue(e, KEY_PRICE));
}
menuItems.add(map);
}
}
// Adding menuItems to ListView
ListAdapter adapter = new SimpleAdapter(this, menuItems,
R.layout.list_item,
new String[] {KEY_CATEGORY,KEY_ITEM_NAME,KEY_PRICE}, new int[] {R.id.category,R.id.name,R.id.costlab });
setListAdapter(adapter);
// selecting single ListView item
ListView lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String category = ((TextView) view.findViewById(R.id.category)).getText().toString();
String name = ((TextView) view.findViewById(R.id.name)).getText().toString();
//String description = ((TextView) view.findViewById(R.id.desciption)).getText().toString();
String cost = ((TextView) view.findViewById(R.id.cost)).getText().toString();
// Starting new intent
Intent in = new Intent(getApplicationContext(), SingleMenuItemActivity.class);
//in.putExtra(KEY_ITEM, name);
in.putExtra(KEY_CATEGORY, category);
in.putExtra(KEY_ITEM_NAME,name);
in.putExtra(KEY_PRICE, cost);
//in.putExtra(KEY_DESC, description);
startActivity(in);
}
});
}
}
这是我的xml解析器。
* */
public String getXmlFromUrl(String url) {
String xml = null;
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
xml = EntityUtils.toString(httpEntity);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// return XML
return xml;
}
/**
* Getting XML DOM element
* @param XML string
* */
public Document getDomElement(String xml){
Document doc = null;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xml));
doc = db.parse(is);
} catch (ParserConfigurationException e) {
Log.e("Error: ", e.getMessage());
return null;
} catch (SAXException e) {
Log.e("Error: ", e.getMessage());
return null;
} catch (IOException e) {
Log.e("Error: ", e.getMessage());
return null;
}
return doc;
}
/** Getting node value
* @param elem element
*/
public final String getElementValue( Node elem ) {
Node child;
if( elem != null){
if (elem.getNextSibling() != null){
for( child = elem.getFirstChild(); child != null; child = child.getNextSibling() ){
if( child.getNodeType() == Node.TEXT_NODE ){
return child.getNodeValue();
}
}
}
}
return "";
}
/**
* Getting node value
* @param Element node
* @param key string
* */
public String getValue(Element item, String str) {
NodeList n = item.getElementsByTagName(str);
return this.getElementValue(n.item(0));
}
这是我的logcat输出：
05-18 12:07:44.562: E/catname(25201): ICECREAM
05-18 12:07:44.562: E/itemname(25201): SOFTY
05-18 12:07:44.562: E/itemname(25201): STICK
05-18 12:07:44.562: E/itemname(25201): CONE
05-18 12:07:44.562: E/catname(25201): PIZZA
05-18 12:07:44.562: E/itemname(25201): PIZZA-HOT
05-18 12:07:44.562: E/itemname(25201): PIZZA-CRISPY
但是我正在通过设备运行，我在屏幕上获得了价值 冰淇淋 多愁善感 COST
PIZZA PIZZA CRISPY COST
并非所有值。
所以我的要求是1）查看category_name，item_name，item price。但是每个项目的类别名称应该是重复的。