2014/10/15 下午 10:04:53

iphone Programming Glossary: cancelalloperations

Queue of NSOperations and handling application exit

http://stackoverflow.com/questions/1566230/queue-of-nsoperations-and-handling-application-exit

the operation has completed etc. and bail out at that point. In applicationWillTerminate send your operation queue a cancelAllOperations message and follow that up with a waitUntilAllOperationsAreFinished message. This will block until all operations in the..

NSOperations or NSThread for bursts of smaller tasks that continuously cancel each other?

http://stackoverflow.com/questions/2840406/nsoperations-or-nsthread-for-bursts-of-smaller-tasks-that-continuously-cancel-ea

small touch keyboard . If it is allowed to time out it is time to search. void doSearch NSString searchString queue cancelAllOperations ISSearchOperation searchOperation ISSearchOperation alloc initWithSearchTerm searchString queue addOperation searchOperation.. from the web service and the parsing. After each I check to see if the search has been canceled by NSOperationQueue cancelAllOperations if it has then we return and the object is nicely cleaned up in the dealloc method. I will probably have to build in some..

Subclassing NSOperation to be concurrent and cancellable

http://stackoverflow.com/questions/3859631/subclassing-nsoperation-to-be-concurrent-and-cancellable

line I get my operations running concurrently. However the isCancelled flag is not modified even though I have called cancelAllOperations . Thanks a lot Thierry iphone nsoperation nsoperationqueue performselector share improve this question Okay so as I.. appears in comments in your code What does that code do Why is the _isCancelled flag is not modified when you call cancelAllOperations on the NSOperationQueue that contains this operation Let's deal with these in order. I'm going to assume that your subclass.. . I'll show how to do that in my example below. 2. Cancelling an NSOperation NSOperationQueue cancelAllOperations calls the NSOperation cancel method which causes subsequent calls to NSOperation isCancelled to return YES . However you..

Can you use cancel/isCancelled with GCD/dispatch_async?

http://stackoverflow.com/questions/5449469/can-you-use-cancel-iscancelled-with-gcd-dispatch-async

you use cancel isCancelled with GCD dispatch_async I've been wondering can you use cancel cancelAllOperations .isCancelled with a thread you have launched with GCD Currently I just use a boolean as a flag to cancel the background.. NSLog @ Amazing Interruption System Working return This all works perfectly. But ........ is it possible to use cancel cancelAllOperations .isCancelled with this type of use of GCD What's the story here Cheers. PS for any beginners using this six part background..

Does AFNetworking have backgrounding support?

http://stackoverflow.com/questions/7800614/does-afnetworking-have-backgrounding-support