Can I ever run into block retain cycle with animateWithDuration:animations:completion:? If yes, then coul开发者_运维技巧d you please show me some example?
int (^b[3])(); for (int i=0; i<3; i++) b[i] = ^{ return i;}; for (int i=0; i<3; i++) printf(\"b %d\\n\", b[i]());
When I have a block in Objective-C that looks like this: self.request = [[ASIHTTPRequest requestWithURL:...
i\'m using beginWithCompletionHandler of NSOpenPanel class. My problem is that projects attribute is an invalid object inside that block. What i\'m missing?
I have my own method that takes a block as an a开发者_运维知识库rgument. I want to keep track of that block inside an NSDictionary. What is the best way to add the block to the dictionary?
Can anyone explain how this block syntax works? AStreamBuilder stream_builder = [ [ ^( void ) { // some more code..
I\'m attempting to download an MP3 file from my server when a user selects a row using blocks and a dispatch_queue. Things seem to work great about 80% of the time.
I\'m encountering a s开发者_开发知识库trange issue when attempting to access a __block (block mutable) variable from outside of a block in which it is modified. This is a very toy example that I\'m us
This question already has answers here: Caret character between types rather than variables, surrounded by parentheses
Edit I read through some articles on blocks and fast enumeration and GCD and the like. @Bbum, who\'s written many articles on the subject of GCD and blocks, says that the block enumeration methods are
加载中,请稍侯......