I\'ve been looking at the Game Center code example, GKTapper, and one section where the developer comments on his implementation does not make too much sense to me.The code is inserted below.What I do
We have a class that wraps NSURLConnection. It accepts a block that it calls back when it finishes loading. To give you an idea, see below. When you send a request, it saves the callback on the instan
Are there alternatives to \"delegates\" to pass back data from one controlle开发者_如何转开发r to another?
//class definition @interface class1 : NSObject { NSMutableArray *array ; void (^test)() ; } @property( nonatomic,assign ) NSMutableArray *array;
I\'m just getting started with blocks and Grand Central Dispatch. I\'ve been told (and read in the Apple Documentation) that any object referenced from within a block gets retained.
I\'m dealing with neural networks here, but it\'s safe to ignore that, as the real question has to deal with blocks in objective-c. Here is my issue. I found a way to convert a neural network into a b
Example: I have this block, and I want to update a label on the screen: [self.motionManager startDeviceMotionUpdatesToQueue:[NSOperationQueue currentQueue] withHandler:^(CMDeviceMotion开发者_如何学C
Blocks are fine but what about writing C arrays? Given this simplified situation: CGPoint points[10]; [myArray forEachElementWithBlock:^(int idx) {
One simple question: This is an example of an old fashion animation: [UIView beginAnimations:nil context:NULL];
Suppose I run this code: __block int step = 0; __block dispatch_block_t myBlock; myBlock = ^{ if(step == STEPS_COUNT)
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