how to save data to XML file on iPhone

Question

I want to save data to xml file , which include

Create xml file
insert in it
delete from it
update certain node
read all the elements

any suggestion please , any sample tutorial code will be highly appreciated

plist files have the structure of an xml file, or save it as an xml or text files — Radu, Jun 07 '11 at 10:04
i post my question [here](http://stackoverflow.com/questions/7927202/how-to-save-iuimage-and-nsstring-which-are-generate-by-nsurl-load-from-a-xml-fil), if you want to continu to help me thank you FelixLam — JioGray, Oct 28 '11 at 09:07

score 4 · Accepted Answer · answered Jun 07 '11 at 09:16

NSURL *url = [NSURL URLWithString:@"http://abcd.com/sample.xml"];
NSData *data = [NSData dataWithContentsOfURL:url];  // Load XML data from web

// construct path within our documents directory
NSString *applicationDocumentsDir = 
   [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *storePath = [applicationDocumentsDir stringByAppendingPathComponent:@"sample.xml"];

// write to file atomically (using temp file)
[data writeToFile:storePath atomically:TRUE];

If you are parsing the XML into an NSArray or NSDictionary, it is better to just save the array or dictionary so that you don't have to parse the data in the cache every time you want to read it. Both NSArray and NSDictionary have the methods writeToFile and initWithContentsOfFile

score 1 · Answer 2 · answered Jun 07 '11 at 09:05

1

You can use .plist file for XML structured storing the XML. It works for me.

answered Jun 07 '11 at 09:05

Arvind

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score 0 · Answer 3 · answered Oct 28 '11 at 08:27

Why do you want to use XML-files on the iPhone? There are more efficient ways to handle that data on the device. You might want to have a look at CoreData which supports SQLite and XML as persistent stores.

XML-Parsing is resource intensive especially if the XML gets very large. CoreData might be able to help you navigate around the hardware limitations of the iOS platform.

how to save data to XML file on iPhone

3 Answers3