Android - InputStream is always died on foreground

Question

I have an application, it will parse data from Youtube's playlist, the data is formatted like XML. I am using SAXParser to do this. But having a issue when using InputStream with SAXParser.

SAXParser saxParser = saxFactory.newSAXParser();
XMLReader xmlReader = saxParser.getXMLReader();
xmlReader.setContentHandler(this);
URLConnection urlConnection = new URL(pURL).openConnection();
urlConnection.setConnectTimeout(10000);
InputStream inputStream = urlConnection.getInputStream();/*always die here*/
xmlReader.parse(new InputSource(inputStream));

The class that contains code is extending DefaultHandler. With this code, if I run with class DataASyn extends AsyncTask<Void, Void, Void> it is ok and run well, but when I run without DataAsyn, it is always died as I described above. I do not know why ???? I also debug when on background, and recognize that at InputStream inputStream = urlConnection.getInputStream(); program will pause some seconds before continuing run, maybe it was waiting for data ?!? I hope all information above, anyone will know what has happened and give me any ideas about it.

Thanks, Ryan

which version of android are you running this on? and when you say it "dies" do you mean ANR (crashes Application Not Responding)? — Ryhan, Jun 14 '14 at 19:17
I am using Android 4.0.3 with Samsung Galaxy S2. "Dies" I mean like your post - Crash appears! — ryan_le, Jun 15 '14 at 06:58

score 0 · Answer 1 · edited May 23 '17 at 12:13

The fact it works in your async task and "dies" otherwise, might mean your getting the NetworkOnMainThreadException. When the code executes in the AsyncTask it does so on a different thread other than the UI-Thread. When you run this code outside the AsyncTask, presumably your UI-Thread, this exception will get thrown on android 3.0+ if I remember correctly.

Also, getting the input stream from any endpoint will take some time as it is a network operation. Don't expect it to be another instantaneous when stepping through it with breakpoints.

Android - InputStream is always died on foreground

1 Answers1