android – XmlPullParser getAttributeValue返回null

<?xml version="1.0" encoding="utf-8"?>
<homescreen>
    <homeitem name="Name1"
              subtext="Description1"
              icon="iconresource1" />
    <homeitem name="Name2"
              subtext="Description2"
              icon="iconresource2" />
    <homeitem name="Name3"
              subtext="Description3"
              icon="iconresource3" />
</homescreen>

我正在使用XmlPullParser阅读每个单独的homeitem：

int event;
String TAG_ITEM = "homeitem";
while ((event = parser.next()) != XmlPullParser.END_DOCUMENT) {
    if (event == XmlPullParser.START_TAG) {
        String tag = parser.getName();
        if (tag_ITEm.equals(tag)) {
            // Works - Logs "Name1"
            Log.d(LOG_NAME,parser.getAttributeValue(0));

            // Works - Logs "name"
            Log.d(LOG_NAME,parser.getAttributename(0));

            // Works - Logs ""
            Log.d(LOG_NAME,parser.getAttributenamespace(0));

            // Fails - Logs null
            Log.d(LOG_NAME,parser.getAttributeValue(XmlPullParser.NO_NAMESPACE,"name"));
        }
    }
}

我的问题是：使用getAttributeValue(String,String)始终返回null.使用getAttributeValue(Integer)工作正常.我究竟做错了什么？

设备：Nexus 10,Stock KitKat 4.4