Pull解析

public class MainActivity extends Activity {


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}



public void btnPullResolver(View v){


List<Book> books = pullResolverXml();
System.out.println("哈哈哈 : "+books.toString());

}

/**
* 使用Pull解析xml文檔
*/
private List<Book> pullResolverXml(){
try {
//step1:創建一個pull解析器對象
XmlPullParser parser = Xml.newPullParser();
//step2:開始解析xml
InputStream is = getAssets().open("Books.xml");
parser.setInput(is, "utf-8");
int type = parser.getEventType();//0 != 1  true   0 != 0 false
List<Book> books = null;
Book book = null;

//判斷是否已經讀取xml文檔的結尾
while(type != XmlPullParser.END_DOCUMENT){

switch (type) {
case XmlPullParser.START_TAG:
{

if("Books".equals(parser.getName())){
//創建集合
books = new ArrayList<Book>();
}else if("Book".equals(parser.getName())){
//創建Book對象
book = new Book();
}else if("name".equals(parser.getName())){
//取出name標籤裏面的內容
String name = parser.nextText();
book.setName(name);
}else if("price".equals(parser.getName())){
String price = parser.nextText();
book.setPrice(price);
}else if("author".equals(parser.getName())){
String author = parser.nextText();
book.setAuthor(author);
}

}
break;


case XmlPullParser.END_TAG://結束標籤
if("Book".equals(parser.getName())){
//添加到集合
books.add(book);
}

break;
}



//讓pull解析器對象往下移動一行
type = parser.next();

}


return books;

} catch (Exception e) {
e.printStackTrace();
}

return null;


}






}