how to call a function within class in objective c - iphone

Question

i am new to objective c programming I want to call a function within anothor method please give me idea.
-(void) grabRSSFeed:(NSString *)blogAddress {
// Initialize the blogEntries MutableArray that we declared in the header
myBlogEntries = [[NSMutableArray alloc] init];
// Convert the supplied URL string into a usable URL object
NSURL *url = [NSURL URLWithString: blogAddress];
// Create a new rssParser object based on the TouchXML "CXMLDocument" class, this is the
// object that actually grabs and processes the RSS data
CXMLDocument *rssParser = [[[CXMLDocument alloc] initWithContentsOfURL:url options:0 error:nil] autorelease];
// Create a new Array object to be used with the looping of the results from the rssParser
NSArray *resultNodes = NULL;
// Set the resultNodes Array to contain an object for every instance of an node in our RSS feed
resultNodes = [rssParser nodesForXPath:#"//item" error:nil];
// Loop through the resultNodes to access each items actual data
for (CXMLElement *resultElement in resultNodes) {
// Create a temporary MutableDictionary to store the items fields in, which will eventually end up in blogEntries
NSMutableDictionary *blogItem = [[NSMutableDictionary alloc] init];
// Create a counter variable as type "int"
int counter;
// Loop through the children of the current node
for(counter = 0; counter < [resultElement childCount]; counter++) {
// Add each field to the blogItem Dictionary with the node name as key and node value as the value
[blogItem setObject:[[resultElement childAtIndex:counter] stringValue] forKey:[[resultElement childAtIndex:counter] name]];
}
// Add the blogItem to the global blogEntries Array so that the view can access it.
[myBlogEntries addObject:[blogItem copy]];
}
}
want to call above function in Babes Method
-(IBAction)babes
{
myview.hidden = FALSE;
[myview startAnimating];
feedurl = #"http://www.luxury.net/feed/rss/babes.xml";
//want to call it here.....
[self performSelector:#selector(moveAlert:) withObject:nil afterDelay: 0.7f];
}
but its not working please help me out thanks in advance.

Answer 1

You need to read the beginner documentation, start here: Learning Obj-C
For your problem specifically, try this:
NSString* aBlogAdress = #"http://anAdress.com";
[self grabRSSFeed:aBlogAddress];

Answer 2

You use self just as you are doing already, but you have to supply the argument correctly.
[self grabRSSFeed:#"http://someurl.com"];
The blogAddress is an NSString that you must supply somehow. For example, if you have a text view called textViewRSSFeed in your app, you would supply the value for that field.
[self grabRSSFeed:textViewRSSFeed.text];

Answer 3

-(void)grabRssFeed:(NSString *)str
{
}
-(void)ViewDidLoad
{
NSString *Str=#"www.anyUrl.com";
[Self grabRssFeed:Str];
}