self is merely a captured variable inside a block and doesn\'t reference the block itself, so how does a block reference itself without having an explicit captured variable for tha开发者_StackOverflow
I got the this code in a class: - (void)cancel { if (_cancelBlock) _cancelBlock(); } - (void)overrideCancelWithBlock:(void(^)(void))cancelBlock {
Is there a way to apply a block to all the objects of an array? Let\'s say I have an amazing block: void (^myAmazingBlock)(NSNumber *) = ^(NSNumber *aFooNumber) {
If it can, are there a开发者_运维问答ny gotchas to using it?Yes you can.I just tried it.This makes sense, since blocks are instances of NSBlock (a private class), which itself inherits from NSObject.
My 2 main development environments are C, and Objective-C.With Clang and LLVM, using closures has become or is becoming a complete reality, called Blocks.. but they\'re still closures.I\'m not concern
I\'m trying to incorporate the example found on http://www.icodeblog.com/asset-libraries-and-blocks-in-ios-4/ into my own app.This is what I have so far:
I would like to know if the below question is possible using NSComparator or not? I have two arrays; both hold data models. I have a property named rank in the data model. Now I want to compare both
I have been playing around with the two different ways of doing UIView animations: begin/commit and Blocks.
I\'ve just run into blocks and I think they are just what I\'m looking for, except for one thing: is it possible to call a method [self methodName] from within a block?
Most of the documented examples of block usage demonstrate closure with simple variables, but I\'ve been confou开发者_运维百科nded by any attempts to access objects which are present in the surroundin
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