Android上的RSS解析 [英] Parsing RSS on Android
问题描述
我有一对夫妇的RSS订阅我需要解析为我的应用程序,我在这里遵循的优秀教程:<一href=\"http://w2davids.word$p$pss.com/android-rssatom-feeds-parsing-with-rome/\">http://w2davids.word$p$pss.com/android-rssatom-feeds-parsing-with-rome/.我修改了样品一点,并得到它做我的需要。所以,我去将它融入我的应用程序,始终得到了强制退出每次我试图显示帖子列表的时间。我修改了code版本如下。它似乎总是连接适配器到ListView时失败,所以我想我的适配器设置错误。什么是奇怪的我们,在调试器,我可以看看适配器,看看我试图获取数据。
在此先感谢:
公共类视图1扩展活动
{
/ **当第一次创建活动调用。 * /
私人最终的ArrayList&LT;串GT;名单=新的ArrayList&LT;串GT;();
私人的ListView ListView的;
私人ArrayAdapter&LT;串GT;适配器= NULL;
私人SyndContent说明;
私人的ArrayList&LT;串GT; D =新的ArrayList&LT;串GT;(); @覆盖
公共无效的onCreate(捆绑savedInstanceState)
{
super.onCreate(savedInstanceState);
的setContentView(R.layout.main);
适配器=新ArrayAdapter&LT;串GT;(这一点,R.layout.dataview,R.id.ListItemView);
getRSS(http://www.example.com/wp/?feed=gig$p$pss&artist=1);
listView.setAdapter(适配器);
ListView控件=(ListView控件)this.findViewById(R.id.ListView); listView.setOnItemClickListener(新OnItemClickListener()
{
@覆盖
公共无效onItemClick(适配器视图&LT;&GT;母公司,观景,INT位置,持续时间长)
{
意向意图=新的Intent();
intent.setClassName(com.example.idtb,com.example.idtb.ViewRssDescription);
intent.putExtra(DESC,d.get(位置));
startActivity(意向);
}
}); } 私人无效getRSS(字符串RSS)
{ URL feedUrl;
尝试
{
Log.d(调试,输入+ RSS);
feedUrl =新的URL(RSS); SyndFeedInput输入=新SyndFeedInput();
SyndFeed饲料= input.build(新的XmlReader(feedUrl));
列表条目= feed.getEntries(); 迭代器迭代器= entries.listIterator();
而(iterator.hasNext())
{
SyndEntry ENT =(SyndEntry)iterator.next();
字符串title = ent.getTitle();
DESC = ent.getDescription();
d.add(desc.getValue());
adapter.add(职称);
}
adapter.notifyDataSetChanged(); }
赶上(MalformedURLException的E)
{
e.printStackTrace();
}
赶上(抛出:IllegalArgumentException五)
{
e.printStackTrace();
}
赶上(FeedException E)
{
e.printStackTrace();
}
赶上(IOException异常E)
{
e.printStackTrace();
}
}
}
我觉得适配器应是这个样子:
最后ArrayAdapter&LT;串GT;适配器=新ArrayAdapter&LT;串GT;(这一点,android.R.layout.simple_list_item_1,LST);
I've got a couple RSS feeds I need to parse for my app and I followed the excellent tutorial here: http://w2davids.wordpress.com/android-rssatom-feeds-parsing-with-rome/. I modified the sample a bit and got it to do what I needed. So, I went to integrate it into my app and consistently get a Force Quit every time I try to display the list of posts. My modified version of the code is below. It always seems to fail when attaching the adapter to the ListView, so I assume my adapter is setup incorrectly. What's strange us that in the debugger, I can look at the adapter and see the data I'm trying to fetch.
Thanks in advance:
public class View1 extends Activity
{
/** Called when the activity is first created. */
private final ArrayList<String> list = new ArrayList<String>();
private ListView listView;
private ArrayAdapter<String> adapter = null;
private SyndContent desc;
private ArrayList<String> d = new ArrayList<String>() ;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
adapter = new ArrayAdapter<String>(this, R.layout.dataview, R.id.ListItemView);
getRSS("http://www.example.com/wp/?feed=gigpress&artist=1");
listView.setAdapter(adapter);
listView = (ListView) this.findViewById(R.id.ListView);
listView.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long duration)
{
Intent intent = new Intent();
intent.setClassName("com.example.idtb", "com.example.idtb.ViewRssDescription");
intent.putExtra("desc", d.get(position));
startActivity(intent);
}
});
}
private void getRSS(String rss)
{
URL feedUrl;
try
{
Log.d("DEBUG", "Entered:" + rss);
feedUrl = new URL(rss);
SyndFeedInput input = new SyndFeedInput();
SyndFeed feed = input.build(new XmlReader(feedUrl));
List entries = feed.getEntries();
Iterator iterator = entries.listIterator();
while (iterator.hasNext())
{
SyndEntry ent = (SyndEntry) iterator.next();
String title = ent.getTitle();
desc = ent.getDescription();
d.add(desc.getValue());
adapter.add(title);
}
adapter.notifyDataSetChanged();
}
catch (MalformedURLException e)
{
e.printStackTrace();
}
catch (IllegalArgumentException e)
{
e.printStackTrace();
}
catch (FeedException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
I think adapter should look something like this:
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, lst);
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