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2014/10/15 ¤U¤È 10:05:25

iphone Programming Glossary: concurrently

NSBlockOperation or NSOperation with ALAsset Block to display photo-library images using ALAsset URL

http://stackoverflow.com/questions/11580918/nsblockoperation-or-nsoperation-with-alasset-block-to-display-photo-library-imag

with ALAsset blocks The NSBlockOperation description says A class you use as is to execute one or more block objects concurrently. Because it can execute more than one block a block operation object operates using a group semantic only when all of the..

How to achieve concurrent task through NSOperation? [closed]

http://stackoverflow.com/questions/12910479/how-to-achieve-concurrent-task-through-nsoperation

closed I am new to NSoperation . NSoperation is a singleshot object. How can we achieve multiple operations concurrently through NSoperation is it possible without NSoperationQueue Even if we use NSoperationQueue it will perform operations FIFO..

NSOperationQueue and concurrent vs non-concurrent

http://stackoverflow.com/questions/1646795/nsoperationqueue-and-concurrent-vs-non-concurrent

c cocoa cocoa touch multithreading share improve this question NSOperationQueue always executes operations concurrently while taking dependencies into account. A non concurrent operation requires a separate thread in order to execute concurrently... while taking dependencies into account. A non concurrent operation requires a separate thread in order to execute concurrently. NSOperationQueue is responsible for providing this thread. In other words a non concurrent operation depends on NSOperationQueue..

Callback for UITableView animations

http://stackoverflow.com/questions/2802146/callback-for-uitableview-animations

I am finally able to collapse one sub section THEN expand the next sub section. Before both animations were occurring concurrently which was visually unappealing. I hope this helps you I struggled through this for a long time banging my head against the..

Is it possible to successful animate a moving UIButton?

http://stackoverflow.com/questions/3568868/is-it-possible-to-successful-animate-a-moving-uibutton

don't respond to touches. Btw I have several of these 'bubble' buttons on screen at once so having several NSTimers concurrently active wouldn't be optimal. Can anyone suggest another approach Should I perhaps animate UIImageViews and make them repsond..

Subclassing NSOperation to be concurrent and cancellable

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

example I found I don't understand why performSelectorOnMainThread is used. It would prevent my operation from running concurrently. Also when I comment out that line I get my operations running concurrently. However the isCancelled flag is not modified.. It would prevent my operation from running concurrently. Also when I comment out that 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.. of explanation. I'll explain what you're misunderstanding and then give a corrected example. 1. Running NSOperations concurrently Most of the time you'll use NSOperation s with an NSOperationQueue and from your code it sounds like that's what you're..

Concurrency and serial queues in Grand Central Dispatch

http://stackoverflow.com/questions/5026043/concurrency-and-serial-queues-in-grand-central-dispatch

and a few lines later... dispatch_sync myQueue ^ self doStuff2 The first dispatch is async. So it will be done concurrently right How can that be if myQueue is serial How can a serial queue do things in parallel or if you will out of order thanks..

What are the Dangers of Method Swizzling in Objective C?

http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c

at a time. Method swizzling is not atomic I have yet to see an implementation of method swizzling that is safe to use concurrently 1 . This is actually not a problem in 95 of cases that you'd want to use method swizzling. Usually you simply want to replace..

Displaying Lots Of RichText : Choosing the best option

http://stackoverflow.com/questions/6626294/displaying-lots-of-richtext-choosing-the-best-option

into your UIWebView so you're not loading that from a server every time. All that being said if you did have a lot of concurrently visible cells it might be a different story and I'd maybe consider only showing plain text in the UITableView index and..

Why is -animateWithDuration:delay:options:animations:completion: blocking the UI?

http://stackoverflow.com/questions/9967384/why-is-animatewithdurationdelayoptionsanimationscompletion-blocking-the-ui

the animation begins and ends to be blocked when the animation finishes. Is there a way to start a UIView animation concurrently so the UI interactions are not blocked EDIT to clarify I know that the UI is blocked because I cannot interact with any..