android.os.NetworkOnMainThreadException

URL url = new URL(urlToRssFeed);
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
XMLReader xmlreader = parser.getXMLReader();
RssHandler theRSSHandler = new RssHandler();
xmlreader.setContentHandler(theRSSHandler);
InputSource is = new InputSource(url.openStream());
xmlreader.parse(is);
return theRSSHandler.getFeed();

To run this code

android.os.NetworkOnMainThreadException I get this error. How should I fix it?

android thread-exception

2022-09-21 19:52

1 Answers

Android.os.NetworkOnMainThreadException This error occurs when an application attempts a network operation on the main thread. Using AsyncTask

class RetrieveFeedTask extends AsyncTask<String, Void, RSSFeed> {

    private Exception exception;

    protected RSSFeed doInBackground(String... urls) {
        try {
            URL url= new URL(urls[0]);
            SAXParserFactory factory =SAXParserFactory.newInstance();
            SAXParser parser=factory.newSAXParser();
            XMLReader xmlreader=parser.getXMLReader();
            RssHandler theRSSHandler=new RssHandler();
            xmlreader.setContentHandler(theRSSHandler);
            InputSource is=new InputSource(url.openStream());
            xmlreader.parse(is);
            return theRSSHandler.getFeed();
        } } catch (Exception e) {
            this.exception = e;
            return null;
        }
    }

    protected void onPostExecute(RSSFeed feed) {
        // // TODO: check this.exception 
        // // TODO: do something with the feed
    }
}

Do it like this. Execute new RetrieveFeedTask().execute(urlToRssFeed); This is how you do it.

And at Android Manifest, <uses-permission android:name="android.permission.INTERNET"/> Please make sure to do it.

2022-09-21 19:52

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