I'd like to have a method be executed after the current method has passed and the UI has been updated. For that purpose, I'm using [object performSelector:@selector(someSelector) withObject:someObj...

Before beginning note that this has nothing to do with background processing. There is no "calculation" involved that one would background. Only UIKit. view.addItemsA() view.addItemsB() v...

I'm learning socket communication on iPhone, and its guide said something about CFRunloop(it is a guide for CFNetwork, can this be used on iOS?) Where can I learn about runloop on iOS?API referenc...

I have a need to delay for a certain amount of time and yet allow other things on the same runloop to keep running. I have been using the following code to do this: [[NSRunLoop currentRunLoop] run...

I've just read the following post and have tried to implement the approach described there: Writing iOS acceptance tests using Kiwi - Being Agile All the stuff described there does work perfectly...

I'm trying to get a simple example working with GCDAsyncSocket, and am discovering that I'm missing certain bits of understanding and hope you fine people can help explain this. I've setup the GCD...

I don't understand it at all but NSTimer in my app definitely is running in background. I have a NSLog in method run by the timer and it is logging while it's in background. It's on iPhone 4 with i...

First, my question: How do you manage your iOS Run-Loop? Next my reason: I've been researching this with a variety of prototypes (v. early stage development) and have found a number of perplexing ...

If you are an advanced user of drawRect, you will know that of course drawRect will not actually run until "all processing is finished." setNeedsDisplay flags a view as invalidated and th...