Parsing XML data to NSMutableArray iOS - iPhone - iphone

Question

This is the XML data:
<Categorys>
<Category>
<categoryId>25</categoryId>
<categoryName>My Photos</categoryName>
<categoryDescription>Description</categoryDescription>
<categoryIconPath>7.jpg</categoryIconPath>
<userId>2</userId>
<categoryStatus>ON</categoryStatus>
<publicPrivate>Private</publicPrivate>
</Category>
......more categories
<Categorys>
Here I want to get the <categoryName> values into my NSMutableArray categList.
The code I have used is:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qualifiedName
attributes:(NSDictionary*)attributeDict {
if ( [elementName isEqualToString:#"categList"]) {
// addresses is an NSMutableArray instance variable
if (!categList)
categList = [[NSMutableArray alloc] init];
return;
}
NSLog(#"StartedElement %#", elementName);
element = [NSMutableString string];
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if(element == nil)
element = [[NSMutableString alloc] init];
[element appendString:string];
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName {
NSLog(#"Found an element named: %# with a value of: %#", elementName, element);
if ([elementName isEqualToString:#"categoryName"]) {
NSLog(#"\n\n\nfound::::::::::::::: %#", element);
category = element;
NSLog(#"category:::: %#", category);
}
[categList addObject:element];
NSLog(#"categList*************** %#", categList);
}
But I am not getting the category names in my NSMutableArray categList:
Whats wrong in my code? :(
Thanks

Answer 1

Hey You can use XMLReader but it will return NSDictionary.
The Following code demo for XMLReader to get NSDictionary.
import XMLReader in your file.
#import "XMLReader.h"
Then use following method to get NSDictionary. Where you have to pass your XML as NSString
.
NSDictionary* xmlDict = [XMLReader dictionaryForXMLString:theXML error:&er];

Answer 2

If you want to use GDataXMLParser you can use following code that is working fine
First Impost GDataXMLParser library file then write vbe
-(void)XMLParsing
{
GdataParser *parser = [[GdataParser alloc] init];
NSString* urlString = #"YOURURL";
NSURL *url = [[NSURL alloc] initWithString:urlString];
[parser downloadAndParse:url withRootTag:#"Category" withTags:[NSDictionary dictionaryWithObjectsAndKeys:#"categoryId",#"categoryId",#"categoryName",#"categoryName",#"categoryDescription",#"categoryDescription",#"categoryIconPath",#"categoryIconPath",#"userId",#"userId",#"categoryStatus",#"categoryStatus",#"publicPrivate",#"publicPrivate",nil]
sel:#selector(finishGetDataSF:)
andHandler:self];
[urlSR release];
[parser release];
}
-(void)getDate:(NSDictionary*)dict
{
NSLog(#"Data from XML file == %#",dict);
NSArray* arrayTemp = [dict copy];
}

Answer 3

here i have parsing of you r Application its working very fine pls check it make a category object orientation class and use it.
-(void)loaddatafromxml
{
NSString *ur=[NSString stringWithFormat:#"Enter your url"];
NSURL *url=[NSURL URLWithString:ur];
NSMutableURLRequest *req=[NSMutableURLRequest requestWithURL:url];
conn=[[NSURLConnection alloc]initWithRequest:req delegate:self];
if(conn)
webdata=[[NSMutableData data]retain];
}
-(void) connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[webdata appendData:data];
}
-(void) connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[webdata setLength:0];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
categaryArry=[[NSMutableArray alloc]init];
NSString *thexml=[[NSString alloc] initWithBytes:[webdata mutableBytes] length:[webdata length] encoding:NSASCIIStringEncoding];
NSArray *arr=[thexml componentsSeparatedByString:#"<Category>"];
for(int i=1;i<[arr count];i++)
{
categList *object = [[categList alloc] init];
NSString *str=[arr objectAtIndex:i];
NSArray *arr=[str componentsSeparatedByString:#"<categoryId>"];
NSString *data=[arr objectAtIndex:1];
NSRange ranfrom=[data rangeOfString:#"</categoryId>"];
object.catid=[data substringToIndex:ranfrom.location];
arr=[str componentsSeparatedByString:#"<categoryName>"];
data=[arr objectAtIndex:1];
ranfrom=[data rangeOfString:#"</categoryName>"];
object.catname=[data substringToIndex:ranfrom.location];
arr=[str componentsSeparatedByString:#"<categoryDescription>"];
data=[arr objectAtIndex:1];
ranfrom=[data rangeOfString:#"</categoryDescription>"];
object.catdesc=[data substringToIndex:ranfrom.location];
arr=[str componentsSeparatedByString:#"<categoryIconPath>"];
data=[arr objectAtIndex:1];
ranfrom=[data rangeOfString:#"</categoryIconPath>"];
object.caticon=[data substringToIndex:ranfrom.location];
arr=[str componentsSeparatedByString:#"<userId>"];
data=[arr objectAtIndex:1];
ranfrom=[data rangeOfString:#"</userId>"];
object.userid=[data substringToIndex:ranfrom.location];
arr=[str componentsSeparatedByString:#"<categoryStatus>"];
data=[arr objectAtIndex:1];
ranfrom=[data rangeOfString:#"</categoryStatus>"];
object.catstatus=[data substringToIndex:ranfrom.location];
arr=[str componentsSeparatedByString:#"<publicPrivate>"];
data=[arr objectAtIndex:1];
ranfrom=[data rangeOfString:#"</publicPrivate>"];
object.publicpriv=[data substringToIndex:ranfrom.location];
[categaryArry addObject:object];
}
[self.table_data reloadData];
[thexml release];
[connection release];
}
and call the loaddatafrm xml function as [self loaddatafromxml]; its working nice try it .
Thanks

Answer 4

You use if ( [elementName isEqualToString:#"categList"])... but I can't find categList name in you XML sample. Check please - this can be an issue.