Im executing a thread that keeps looking for updates from a web site. It should be possible to set the refresh rate in some view.
I would like to make a method that takes in a block, saves it in a member, starts up an asynch task, and then calls the block when the asynchronous call makes its completi开发者_如何学Pythonon callbac
I was reading the following Apple documentation on completion block in dispatch queues, and I have trouble understanding part of it.The document mentions that "To prevent the queue from being rel
I\'m trying to get the ID from a tag, using a library. I came up with the following. the loop that\'s looks for a tag is done in the background and I get a correct result in tagAsString.
开发者_如何学编程I’d like to get rid of the complex type declaration before my one-shot blocks:
Considering the following code: - (void)downloadObjectUsingURL: (NSURL *)url; { id file = [self createFileForURL: url];
since I am regularly testing my app on a 3.1.3 device, I had to add a linker flag \"-weak_library /usr/lib/libSystem.B.dylib\" to support blocks there. This was no issue until I just started to add so
I need to know if it\'s better to use NSOperation o开发者_Go百科r Block to load a large number of image into a UIScrollView? I create all the Imageview and positioning each UIImageView in the right po
I have do开发者_C百科wnloaded some example coding. But I found strange coding or maybe I have seen it first time.
I have a question about Grand Central Dispatch, blocks and memory management. Consider this code: Worker *myWorker = [[Worker alloc] init];
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