CODEWITHSUNDEEP
objective-ccocoansxmlparser
wigging
wigging

Reputation: 9180

How to automatically refresh strings obtained from NSXMLParser

I have successfully created a Cocoa app that uses NSXMLParser to retrieve data from an online XML file. Now I am trying to figure out how to automatically refresh the XML data.

Here are some of the relevant methods in my implementation file:

- (void)awakeFromNib {
    NSURL *xmlURL = [NSURL URLWithString:@"my_url_here"];
    NSXMLParser *parser = [[NSXMLParser alloc] initWithContentsOfURL:xmlURL];
    [parser setDelegate:self];
    [parser parse];
}

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
}

So how can I automatically refresh the XML every 15 minutes?

Upvotes: 0

Views: 735

Answers (1)

Jim Hankins
Jim Hankins

Reputation: 1073

Check out NSTimer with a repeating interval

Example to call a method called getMessage every 15 minutes (900 seconds):

NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:900
                                                  target:self
                                                selector:@selector(getMessage:)
                                                userInfo:nil repeats:YES];

self.repeatingTimer = timer;

Timer Programming Topics

Upvotes: 1

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