从xml文件下载文件

Question

我在指向mp3音乐文件地址的URL中插入了一个xml文件，但我不知道如何下载此文件。

这里是我的代码：

String xml = parser.getXmlFromUrl(URL); // getting XML from URL 
    Document doc = parser.getDomElement(xml); // getting DOM element 

    NodeList nl = doc.getElementsByTagName(KEY_SONG); 
    // looping through all song nodes <song> 
    for (int i = 0; i < nl.getLength(); i++) { 
     // creating new HashMap 
     HashMap<String, String> map = new HashMap<String, String>(); 
     Element e = (Element) nl.item(i); 
     // adding each child node to HashMap key => value 
     map.put(KEY_DURATION, parser.getValue(e, KEY_DURATION)); 
     map.put(KEY_THUMB_URL, parser.getValue(e, KEY_THUMB_URL)); 
     map.put(KEY_URL, parser.getValue(e, KEY_URL)); 
     // adding HashList to ArrayList 
     songsList.add(map); 
    } 


    list=(ListView)findViewById(R.id.list); 

    // Getting adapter by passing xml data ArrayList 
    adapter=new LazyAdapter(this, songsList);   
    list.setAdapter(adapter); 


    // Click event for single list row 
    list.setOnItemClickListener(new OnItemClickListener() { 

     public void onItemClick(AdapterView<?> parent, View view, 
       int position, long id) { 




     } 
    }); 

应该是什么onItemClick的代码？

这段代码是从xml中获取链接并从此方法下载的代码是什么？

String url = "url you want to download"; 
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url)); 
request.setDescription("Some descrition"); 
request.setTitle("Some title"); 

Answer 1

在onItemClick中，您放置了在单击项目时想要发生的操作。