Android :: Parsing RSS 2.0 Feeds Using Pull Parser
May 13, 2010
I am trying to parse a RSS2.0 feed, obtained from a remote server, on my Android device using XML Pull Parser.
get a parser instance and set input,encoding
XmlPullParser parser = Xml.newPullParser();
parser.setInput(getInputStream(), null);
I am getting invalid token exceptions after a few items have been parsed:
Error parsing document. (position:line
-1, column -1) caused by: org.apache.harmony.xml.ExpatParser$ParseException:
At line 158, column 25: not
well-formed (invalid token)
Strangely, when I download the feed XML on the device, bundle it inside the raw folder and then run the same code. Everything works fine. What could be the problem here? How do I validate the XML before I parse it on device?
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Jul 18, 2010
I am trying to create a Forum Parsing Application that uses the XML Pull Parser to grab the HTML and then go through it and parsing it for the specific data. I managed to create one that works however when I try to create another one that is used by another Activity in the same Application it gets stuck in a infinite loop.
http://pastebin.com/8YciNjXL
When I debug my code I traced it all the way down to Line 51... while (eventType != XmlPullParser.END_DOCUMENT)
Apparantly eventType gets forever stuck as 0, this is an almost exact copy of my other XML Pull Parser and I have no idea where I or it went wrong.
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May 23, 2010
How can i parse a local xml file in the assets folder using pull parser. cant get pull parser to work, always throws io exception. i think i cant get the path to the file, or connecting to the file.
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Nov 9, 2010
I am developing an android project. I am using dom parser to parse the xml file. Issue is my xml file contains HTML numbers like ½ (semicolon will come in the end of every char code) for example <quote>We "love" our nation</quote> which is nothing but <quot>We "love" our nation</quote> I am not able to parse this HTML number in dom parse, when I try to get the node value, I am getting null. Can anyone tel me how to parse this HTML character codes? or How to convert this HTML char code as either text char code or unicode char set in my xml feed?
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Oct 5, 2010
I am able to parse XML using SAX Parser and able to display the points in text view.
But now I want the points to be displayed on the map.The XML Contains tags for latitude and longitude.
I want to read the latitiudes and longitudes and display them on map .
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Dec 4, 2009
So I've got to parse ugly files that contain nested tags like <p>blah<strong>lah</strong>blah</p> The nested tags are defined and I don't care about them. But they make XmlPullParser fail: XmlPullParser parser = XmlPullParserFactory.newInstance().newPullParser();parser.setInput(some_reader)Code...
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Sep 11, 2010
I am having one xml file and i want to parse it to get Student-ids and student-names only.
CODE:..........
My Problem:
When i am parsing the XML file using the above code, i am getting both the IDs(i.e. student-id, degree-id), so Using Pull-parser, what way i should parse the XML file to get list of only Student-id ?
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Sep 20, 2010
I am having a problem where my XML files are slow to load and don't finish downloading before they start to be parsed which throws an xml not well formatted exception from my parser showing that the file downloaded incompletely. The complete error from logcat is "ERROR/Error(323): errororg.apache.harmony.xml.ExpatParser$ParseException: At line 10, column 46: not well-formed (invalid token)" I know the xml file is correct because sometimes it will work and I can also pull it up in my browser and look at it.
What would be the best way to make the parser wait for the InputSource before continuing on and parsing the xml data? The code below is the code I use to get the file and parse it.
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
XMLReader xr = sp.getXMLReader();
GradeHandler gradeHandler = new GradeHandler();
xr.setContentHandler(gradeHandler);
URL url = new URL("https://url/to/xml/file");
HttpsURLConnection ucon = (HttpsURLConnection)url.openConnection();
ucon.setHostnameVerifier(new AllowAllHostnameVerifier());
xr.parse(new InputSource(new BufferedInputStream(ucon.getInputStream())));
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Apr 19, 2010
Why do we need xml parsing in android and which one is really better (SAX,DOM.PULL)
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Apr 22, 2009
I have a smaller test case now:
CODE:.......
It works with the Standard SDK, but not on Android. The full code is below this post.
CODE:..........
With Android:
CODE:..........
Full code goes here.
CODE:......................
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Oct 29, 2010
i need to get the feeds and display it in android. Any clue?
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Feb 28, 2009
I'm using the SAX parser to read some RSS feeds and have found a problem. Some feeds, for example CNN Money Top Stories, have embedded some characters in their content, i.e. the copyright symbol. Well, that's not valid XML and the SAX Parser fails with an exception "invalid token". The only help I have seen given is to fix the XML at the source and that's not an option obviously. So, I can think of 2 options and they both stink:
(a) read the content first, scrub it, and then pass it to the parser.
(b) Use DOM instead of SAX.
What I *want* to do is make the parser a little more forgiving and just accept or discard/ignore the bad text. I'm not have any luck with setErrorHandler. My error handler does not get called.
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Mar 10, 2009
I would like to know how hard would it be to to build RSS feeds app but only specific ones. For example politics: Pull rss feeds news from politico.com, cnn.com, fox.com etc..... and than display on G1... I would love some info on that and if someone can build such thing. ...am interested.
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Apr 23, 2010
I'm trying to write an XML parser that takes an RSS feed & fetches the image urls shown in the url attribute of the <media:thumbnail> tag. This is all being done via android.Util.Xml, & is an adaptation of the code shown here. An example RSS feed that I'm trying to use is the BBC News RSS feed. However, media is an additional namespace & (probably) as a result my parser isn't working as it should. A version of my parse method is below. Is there any (no doubt simple) way to get my list of image URLs working?
..................
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Mar 7, 2010
I use Newsrob, and curious as to what seems to be the most popular way to download RSS feeds for offline use? Do you download Articles / Articles + Images / Articles + Images + Mobile Web Page / Articles + Images + Web Pages?
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Aug 25, 2010
I just downloaded DoggCatcher podcast app. On startup, it had several default feeds like This American Life and This Week in Tech, etc.How do I delete those feeds from DoggCatcher?
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Dec 30, 2009
So I am looking into Podcasts and RSS Feeds. I have used iTunes in the past to subscribe and watch podcasts, but havent been using iTunes much lately. RSS Feeds I am absolutely new to, and havent yet tried it out. From what I have read RSS Readers (like Google Reader) can subscribe to podcasts, but what about my phone? Would I need a separate RSS reader app, and would it sync with the subscriptions as my PC reader? Are there phone readers that support Video Podcasts?
The other option I saw was to use iTunes and tweak it to allow Podcasts to sync with your Android Device, but Im not sure if this method works with Videos. Im wondering which path is better and easier to manage? It seems easier to find and subscribe to videos using iTunes, but if there is another way, Im all for ditching iTunes completely. I am setting up Googe Reader for RSS feeds either way, I guess thats a separate issue, what I am mainly concerned with is syncing RSS feeds with my phone, and watching Video Podcasts on my Phone.
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Jul 16, 2010
I want to show feeds from a blog in a listview.
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Jan 24, 2010
Essentially, I am looking for a podcatcher that will work with casts requiring authentication (HTTPS). I have several classes I would like to grab the feeds for, but require a login/password and none of the podcatchers I have tried work (Listen, DoggCatcher...etc). It doesn't have to be fancy, I just want something to listen to lectures on while on the fly and not have to worry about constantly syncing with a computer.
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Aug 16, 2010
I have several subscribe-to podcast feeds in Google Reader. When hit 'refresh' in Listen, no feeds or podcasts ever appear. Is there a setting I need to change? I realize this is part of 'Labs', but seeing there are many who use this app, it must be something I'm overlooking.
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Jun 8, 2010
What is the best RSS reader? I want to be able to read full stories off line after they've been downloaded. I've tried AP Mobile and Express News, they both have ugly GUI and rarely update - properly. Looking for a nice GUI and some default feeds.
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Jun 25, 2010
I have to do a small android application. It should connect with facebook and have to post feeds into wall and retrieve feeds to display in timeline format. I am new to android and fb. Could any one help?
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Aug 7, 2009
If anybody know how to do XMl parsing.
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Oct 7, 2010
I have wrote a ContentHandler for SAX parser to retrieve data from and xml file, but it does't work on 2.1-update1, but works fine on 2.2, What is on earth is the changes, anyone knows?
The problem I encountered is exactly the same as stated at: http://code.google.com/p/android/issues/detail?id=11223
----
*Reported by m.de.kwant, Sep 14, 2010*
My application uses a urlconnection to retrieve a soap response. This XML is run through the default saxparser available in the java/android lib.
In android version 2.1 the XML is not parsed correctly. I fact there seems to be no parsing at all, while the raw input is available.
In android version 2.2 the input XML is parsed and the return result from my handlers is correct.
In short. SaxParser on 2.1 does nothing (no result, no error, no parsing), Saxparser on 2.2 works like it supposed to work.
Are there any work arounds for this problem ?
*Comment 1 by project member e...@google.com, Sep 14, 2010*
you can have a look at the differences between 2.1 and 2.2 yourself.
Status: Declined Owner: e...@google.com Labels: Component-Dalvik Delete comment Comment 2 by jiangjun.jking, Today (95 minutes ago)
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Oct 10, 2013
I am developing a C++ module for Android and needs to do some XML formatting of messages.
Is there a way of doing XML parsing using C++ in Android?
I know that JAVA has XML class to do parsing. But unfortunately i will not be able to use that as am doing the development on C++.
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Aug 28, 2012
I have a question about an android application I developed, however, I need to do my introductory post first. So this is it.
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Nov 22, 2010
I'm using a SAX Parser where it is not recognizing. symbols that am getting from it, but when I save the file instead of parsing through a parser they are seen in the file. My xml file is of utf-8 format.
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Mar 13, 2010
When I run my application the following error will occur sometimes, but only sometimes. Can you explain why it occurs only occasionally and what the solution for this is?
The error message is:
CODE:...................
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May 20, 2010
I'm trying to extract n0Y7ezLlIYA8R0K54rEmHaTOraBQVSPDjQaGlQxlGso4jdVN1kRxtcfskEs= using w3c dom
[CODE]
I got it to work but it seems a little bit clunky.
[CODE:]
Is there a prettier way to get the token?
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Oct 27, 2010
I need to implement an xml parser and the parsed result into an expandablelistview.
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