解析android中的xml属性

Question

I am parsing this xml. I want to get all the values from attributes but after searching a lot I am only able to fetch the first item value. Can anybody let me know how can I get all the id from all the items. I have pasted my code also

XML:

<query>
   <item id='9173' name='A'/>
   <item id='9174' name='B'/>
   <item id='9175' name='C'/>
   <item id='9176' name='D'/>
   <item id='9174' name='E'/>
</query>

Code:

boolean done = false;
while (!done) {
    int eventType = parser.next();
    if (eventType == XmlPullParser.START_TAG) {
    }
    else if (eventType == XmlPullParser.END_TAG) {
        Map<String,String> attributes = getAttributes(parser);
        if (parser.getName().equals("query")) {
            done = true;
        }
    }
}
private Map<String,String>  getAttributes(XmlPullParser parser) throws Exception { Map<String,String> attrs=null;
    int acount=parser.getAttributeCount();
    if(acount != -1) {
        Log.d(MY_DEBUG_TAG,"Attributes for ["+parser.getName()+"]");
        attrs = new HashMap<String,String>(acount);
        for(int x=0;x<acount;x++) {
            Log.d(MY_DEBUG_TAG,"\t["+parser.getAttributeName(x)+"]=" +
                  "["+parser.getAttributeValue(x)+"]");
            attrs.put(parser.getAttributeName(x), parser.getAttributeValue(x));
        }
    }
    else {
        throw new Exception("Required entity attributes missing");
    }
    return attrs;
}

Answer 1

In getAttributes you call getAttributeCount which, according to the doc (emphasis mine) :

Returns the number of attributes of the current start tag, or -1 if the current event type is not START_TAG

As your if condition juste before make sure that you are on a END_TAG, this cannot work and your getAttributes call should always throw an exception.

You should probably rewrite it like this (disclaimer : not tested) :

boolean done = false;
while (!done) {

    if (eventType == XmlPullParser.START_TAG) {

        if (parser.getName().equals("query")) {
            done = true;
        } else if  (parser.getName().equals("item")) {
            Map<String,String> attributes = getAttributes(parser);
        }
    }
    else if (eventType == XmlPullParser.END_TAG) {

    }
    int eventType = parser.next();
}