objective-c-blocks
Incrementing an NSNumber withInt by 1 inside of a block. Crashing on certain values
I am trying to create a generic \"BlockController\", where I set a block property to SOMEBLOCK. Then I can call that block on a BlockController update method, passing in properties from the BlockContr[详细]
2023-03-31 11:43 分类：问答Putting single attribute from group of entity objects into an array
If I have an NSArray of custom objects (in this case Core Data objects), how would I put all the items of a particular attribute in another NSArray. Is there a way I can use blocks?[详细]
2023-03-31 07:44 分类：问答How to update UI in a task completion block?
In my application, I let a progress indicator starts animation before I send a HTTP request. The completion handler is defined in a block. After I get the response data, I hide the 开发者_JAVA技巧prog[详细]
2023-03-31 04:41 分类：问答Assigning objects to variable outside a block
The following code crashes, since the contents of sentence go away when the final block exits. #import <Foundation/Foundation.h>[详细]
2023-03-30 12:10 分类：问答EXC_BAD_ACCESS when copying or retaining Block
As far as I understand a Block acts like an object, in that you can send copy or release messages to it, e.g:[详细]
2023-03-29 06:01 分类：问答Objective-C Block Property Defined as Copy Not Working
I am seeing some 开发者_Python百科strange behavior with Objective-C blocks in a large project. Everywhere that there is a Block property that is defined as copy, there is a crash when the app attempts[详细]
2023-03-28 10:45 分类：问答Block transition with more than one view
up until now I used the begin/commit method to switch between views. Going this way it was easily possible to \"combine\" two or more views to be inserted on top at the same time. In my case it\'s a c[详细]
2023-03-28 09:01 分类：问答C++0x lambda vs blocks
I was exploring C++0x to开发者_JAVA百科day, and I encountered the new lambda feature. My question is how are these different (in terms of use) from blocks and why might one prefer one over the other?[详细]
2023-03-28 02:23 分类：问答NSComparator in Separate File
I have a sorting comparator which I need to use in a few different ViewControllers so I\'m trying to keep it in a separate file. I\'ve read I should be able to put the sorting block in a separate file[详细]
2023-03-28 00:02 分类：问答NSNotificationCenter, blocks and ivar of type SEL: can't get it to work
I\'m trying the following: Whenever an OAuth token changes, I want to update some of my view controllers. The view controllers I want to update all inherit from a view controller. This view controlle[详细]
2023-03-27 21:21 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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