我试过这段代码
public class RSSFeed_SAXParser extends Activity {
String streamTitle = "";
ArrayList<String> mediaUrlList, imageUrlList, guidList, titleList,
pubDateList, bitrateList, durationList;
/** Called when the activity is first created. */
public RSSFeed_SAXParser(String url) {
mediaUrlList = new ArrayList<String>();
imageUrlList = new ArrayList<String>();
guidList = new ArrayList<String>();
titleList = new ArrayList<String>();
bitrateList = new ArrayList<String>();
durationList = new ArrayList<String>();
pubDateList = new ArrayList<String>();
try {
URL rssUrl = new URL(url);
SAXParserFactory mySAXParserFactory = SAXParserFactory
.newInstance();
SAXParser mySAXParser = mySAXParserFactory.newSAXParser();
XMLReader myXMLReader = mySAXParser.getXMLReader();
RSSHandler myRSSHandler = new RSSHandler();
myXMLReader.setContentHandler(myRSSHandler);
InputSource myInputSource = new InputSource(rssUrl.openStream());
myXMLReader.parse(myInputSource);
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
private class RSSHandler extends DefaultHandler {
private boolean item = false;
private boolean title = false;
private boolean guid = false;
private boolean image = false;
private boolean pubdate = false;
private boolean media = false;
int count = 0;
long bitr = 0;
String url, duration, bitrate;
String imageUrlValue, guidValue, titleValue, pubDateValue;
private boolean flagTitle = false, flagImage = false, flagMedia = false;
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
if (localName.equals("item")) {
item = true;
count++;
} else if (localName.equalsIgnoreCase("content") && item) {
int w = 0;
long bit = 0;
try {
w = Integer.parseInt(attributes.getValue("width"));
bit = Long.parseLong(attributes.getValue("bitrate"));
} catch (Exception e) {
e.printStackTrace();
}
if (1024 <= w && bit > 1100000) {
bitrate = attributes.getValue("bitrate");
url = attributes.getValue("url");
duration = attributes.getValue("duration");
Log.v("videoWidth" + localName,
"=" + attributes.getValue("width"));
flagMedia = true;
}else if( w == 640 && bit > bitr && !flagMedia){
bitrate = attributes.getValue("bitrate");
url = attributes.getValue("url");
duration = attributes.getValue("duration");
Log.v("640videoWidth" + localName,
"=" + attributes.getValue("width"));
}
} else if (localName.equalsIgnoreCase("thumbnail") && item
&& !flagImage) {
image = true;
flagImage = true;
Log.v("ImageAttributes" + localName,
"=" + attributes.getValue("url"));
imageUrlValue = attributes.getValue("url");
//imageUrlList.add(attributes.getValue("url"));
} else if (localName.equalsIgnoreCase("updated") && item) {
pubdate = true;
} else if (localName.equalsIgnoreCase("title") && item
&& !flagTitle) {
title = true;
} else if (localName.equalsIgnoreCase("clipid") && item) {
guid = true;
} else {
// Log.v("=" + localName, "=" + qName);
}
}
@Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
if (localName.equals("item")) {
item = false;
flagImage = false;
flagTitle = false;
// flagMedia = false;
media = true;
// flagMedia = true;
Log.w("MediaAttributes" + guidValue, "===" + url);
if(url != null)
{
mediaUrlList.add(url);
bitrateList.add(bitrate);
durationList.add((Integer.parseInt(duration)*1000)+"");
guidList.add("Clip"+guidValue);
titleList.add(titleValue);
pubDateList.add(pubDateValue);
imageUrlList.add(imageUrlValue);
}
flagMedia = false;
bitr = 0;
url = bitrate = duration = guidValue = titleValue = pubDateValue = imageUrlValue = null;
Log.v("=" + count, "=" + qName);
}
}
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
if (title && item) {
title = false;
flagTitle = true;
Log.d("title=", "=" + new String(ch, start, length));
//titleList.add(new String(ch, start, length));
titleValue = new String(ch, start, length);
} else if (guid && item) {
guid = false;
//guidList.add(new String(ch, start, length));
Log.d("guid=", "=" + new String(ch, start, length));
guidValue = new String(ch, start, length);
} else if (image && item) {
image = false;
// Log.d("image=", "=" + new String(ch, start, length));
} else if (pubdate && item) {
pubdate = false;
//pubDateList.add(new String(ch, start, length));
pubDateValue = new String(ch, start, length);
Log.d("pubdate=", "=" + new String(ch, start, length));
} else if (media && item) {
media = false;
// Log.d("media=", "=" + new String(ch, start, length));
}
}
}
public ArrayList<String> getTitleList() {
return titleList;
}
public ArrayList<String> getPubDateList() {
return pubDateList;
}
public ArrayList<String> getImageUrllist() {
return imageUrlList;
}
public ArrayList<String> getGuidlist() {
return guidList;
}
public ArrayList<String> getDurationList() {
return durationList;
}
public ArrayList<String> getBitrateUrllist() {
return bitrateList;
}
public ArrayList<String> getVideoUrllist() {
return mediaUrlList;
}
}
// --------------------------
06-18 07:14:31.662: E/AndroidRuntime(16819): FATAL EXCEPTION: AsyncTask #1
06-18 07:14:31.662: E/AndroidRuntime(16819): java.lang.RuntimeException: An error occured while executing doInBackground()
06-18 07:14:31.662: E/AndroidRuntime(16819): at android.os.AsyncTask$3.done(AsyncTask.java:299)
06-18 07:14:31.662: E/AndroidRuntime(16819): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
06-18 07:14:31.662: E/AndroidRuntime(16819): at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
06-18 07:14:31.662: E/AndroidRuntime(16819): at java.util.concurrent.FutureTask.run(FutureTask.java:239)
06-18 07:14:31.662: E/AndroidRuntime(16819): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
06-18 07:14:31.662: E/AndroidRuntime(16819): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
06-18 07:14:31.662: E/AndroidRuntime(16819): at java.lang.Thread.run(Thread.java:856)
06-18 07:14:31.662: E/AndroidRuntime(16819): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
06-18 07:14:31.662: E/AndroidRuntime(16819): at android.os.Handler.<init>(Handler.java:197)
06-18 07:14:31.662: E/AndroidRuntime(16819): at android.os.Handler.<init>(Handler.java:111)
06-18 07:14:31.662: E/AndroidRuntime(16819): at android.app.Activity.<init>(Activity.java:780)
06-18 07:14:31.662: E/AndroidRuntime(16819): at com.fusioni.xmlParser.RSSFeed_SAXParser.<init>(RSSFeed_SAXParser.java:27)
06-18 07:14:31.662: E/AndroidRuntime(16819): at com.fusioni.spacealabama.Splashscreen$MyTask.doInBackground(Splashscreen.java:111)
06-18 07:14:31.662: E/AndroidRuntime(16819): at com.fusioni.spacealabama.Splashscreen$MyTask.doInBackground(Splashscreen.java:1)
06-18 07:14:31.662: E/AndroidRuntime(16819): at android.os.AsyncTask$2.call(AsyncTask.java:287)
06-18 07:14:31.662: E/AndroidRuntime(16819): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
06-18 07:14:31.662: E/AndroidRuntime(16819): ... 3 more
请提前告诉我，我知道我做错了什么。
我得到的错误低于
$("#id").fadeIn(1000).delay(3000).fadeOut(1000);
答案 0 :(得分：1)
两件大事错误：
您无法在new上致电Activity。它们是由系统根据Intent对象创建的。
您无法在Handler内创建new RSSHandler()个对象（通过AsyncTask调用）。它是一个在任意线程中运行的临时，短暂的后台处理器。 Handler要求Looper已启动并绑定到Thread的运行环境。