NSOperation on the iPhone

Question

I\'ve been looking for some concrete scenarios for when NSOperation on the iPhone is an ideal tool to use in an application. To my understanding, this is a wrap

Answer 1

The way I use it in my iPhone apps is to basically create an NSOperationQueue member in my application delegate and make it available through a property. Then every time I need to run something in the background, e.g. download some XML I'll just create an NSInvocationOperation and send it to the queque.

NSInvocationOperation *operationToPerform = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(updateXML) object:nil];
[[(MyAppDelegate *)[[UIApplication sharedApplication] delegate] sharedOperationQueue] addOperation:operationToPerform];
[op release];