Recherche de flux XML usind Iphone

Question

Salut quelqu'un peut-il me donner un indice de la façon de commencer à coder pour une application pour rechercher sur Internet et trouver l'url rss xml en utilisant une chaîne fournie par l'utilisateur.

merci d'avance.

Answer 1

Vous devez utiliser parsing XML pour mettre en œuvre this.I suggèrent l'utilisation touchXML

- (void) callwebservice {

NSString *path = @"YOUR URL"; 
[self grabRSSFeed:path]; 

}

marque pragma - marque

pragma tactile XML

marque de pragma -

- (void) grabRSSFeed: (NSString *) blogAddress {

// Initialize the blogEntries MutableArray that we declared in the header 
blogEntries = [[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:@"//Node you want to parse" 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]]; 
        NSLog(@"Data = %@",[[resultElement childAtIndex:counter] stringValue]); 

    } 

    // Add the blogItem to the global blogEntries Array so that the view can access it. 
    [blogEntries addObject:[blogItem copy]]; 

} 
     [YourTable reloadData]; 

}

bibliothèque d'importation touchXML dans votre fichier d'en-tête.

Merci