How to parse a simple XML file using Xcode 4.2.1 - objective-c

dont get to harsh on me for asking this question, I know this has been asked many times. But the examples I found on the internet are either old or I am having difficulties to port them on to iOS5-Xcode 4.2.1. So I am really looking for a updated simple example where I can parse a simple XML file from an URL, store the values and display them in a tableView. I am looking for some working examples using NSXMLParser. In case if one of you guys have some info about where I can find a working example/internet link which I can follow and make it work on my machine, so that I can play and get some hands of experience on dealing with XML data, before I go on to work with the complex XML data files.
Any one who can post some code is also highly appreciated, as it would help beginners like me.

have you checked this tutorial of parsing XML data with NSXMLParser -
http://wiki.cs.unh.edu/wiki/index.php/Parsing_XML_data_with_NSXMLParser
i think your are looking for this.
Also there is an another good way to do this is using TBXML framework - https://github.com/71squared/TBXML

Related

How do I make a tracking map using KML on an iOS device?

I am trying to make a basic application which show my track on the map while walking. Is there any tutorial or source code.
Thanks in advance.
Edit: A friend helped me by this code sample code but it didn't run well http://dl.dropbox.com/u/31913717/MapTracking.zip
I am not at all an iOS developer, just never learned. However, I know that iOS has a KMLViewer that might be useful. Otherwise you will likely have to parse the KML as XML and then figure out what to do with it.

Parsing YouTube XML

I'm looking to do a little iOS app that uses has some very basic YouTube interaction. When I say basic, I really mean it: All it needs to do it pull in the uploads from a particular user, the videos' links, titles and maybe a thumbnail.
I've been looking at the Google developer docs for YouTube and nothing seems to be of help. It seems that the data is stored in an XML format, but it seems completely different to the structure of the sample XML in the docs. I don't know whether I'm using the wrong link (this is a sample of what I'm looking at now), but I just get a really messy XML document.
I've really no idea where to start on this one (with regards to a parser) - it just looks so messy. If someone could point me in the right direction with this, maybe even a with some sample code on a parser, I'd be incredibly grateful.
Thanks,
K
Have you considered making use of gdata-objectivec-client api http://code.google.com/p/gdata-objectivec-client/ It comes with samples which provide exactly what you are looking for.
Here's a very concise and easy-to-read example using NSXMLParser. It provides an example xml and shows you how to parse its elements and populate a custom object with the values.
i can suggest you to use LIBXML 2.2 it's easy to use and you can use Xpath Query to fetch whatever you want from any messy file.
To learn how to use that look at this page. link
The XML link you provided looks like the atom feed. If you don't feel like parsing the XML in your code, you can try the TouchRSS (https://github.com/TouchCode/TouchRSS) which I used to parse the youtube RSS feed. The RSS feed version should be in version 2 so the url you provide should change to http://gdata.youtube.com/feeds/base/users/DJ3Lau/uploads?orderby=updated&alt=rss&v=2.

How to use XSLT in iPad

I am new to iPad programming. Can anybody tell me how to convert xml file to html file using xslt in iPad . I have read other posts related to this question but i am not able to get the proper answer. Do i have to use any library for it, how to import these file to my objective c code and how to process it.
Thanks in advance.
Check this question it has a similar discussion which might help you to explore more,
Alternative to NSXMLDocument on the iPhone for XSLT purposes
Krio
This link is worth exploring too!
http://ditchnet.org/aquaxsl/

How to get and parse JSON using objective C?

Is it possible to get and parse JSON using objective C, then manipulate it within the cocoa framework for the iphone/pad? I'm specifically looking to do this for a couple of public APIs out there.
See here: how to do json parsing in iphone
Basically, you should look into the TouchJSON library (with CJSONDeserializer and CJSONSerializer).
Used Json-framework on some previous projects, worked really well.
EDIT: I read your post a bit too fast. I've used it on a Mac app before but not targeting the iphone/ipad. I think it should work but have no background to it. Maybe someone else can confirm?
It's not only possible, it's dirt simple if you use one of the many existing open source projects dedicated to this task. I recommend trying yajl-objc, which offers a streaming parser, but json-framework is a good one too. They're very similar.
I'd stay away from TouchJSON, since it gave me trouble a while back with special characters (line breaks) in strings.
However, I'll join the choir recommending json-framework. Since I switched to that from TouchJSON everything's been running smoothly.
Regarding how to integrate the API in your project, they're equally simple to include and use.
As a side note, I'm just now testing out JSONKit, since it's supposed to be much faster than both TouchJSON and json-framework. However, I can't vouch for its stability yet. The reviews of it are good, though.
If you're developing an application that is only iOS 5.0 or later, you can use NSJSONSerialization.

Objective-C Load XML file into NSTableView

Can anyone help me, I'm a n00b at this and still learning.
I simply need to load an XML file into a table view and add a search function to it which filters the table view. I was looking for a tutorial on this or some sample code.
This is for a Mac app.
Here is the apple tableview guide
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/TableView/TableView.html
and here is the NSXML guide
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/NSXML_Concepts/NSXML.html
If you look at my post here I am using a NSURL connection to get local xml, in place of a web service.
Accessing Local file using NSURL
I would strongly suggest getting a copy of the Big Nerd Ranch iOS programming guide, it covers exactly what I think you want to do near the end of the book.