nsoperationqueue

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iOS develop about NSOperationQueue

I know the two ways to get a operation queue as follow: queue1 = [[NSOperationQueue alloc] init]; queue2 = [[NSOperationQueue mainQueue] retain];[详细]

2023-04-12 22:53 分类：问答
Executing multiple NSOpeartion synchronously with NSOperationQueue

I have to download multiple files from Server in background process. for this i am using NSOperationQueue. During download i need to maintain when download has started & completed. For this i have[详细]

2023-04-12 20:01 分类：问答
Guide need for debugging crash log

#00x345bbc98 in objc_msgSend () #10x35cd3616 in -[_PFManagedObjectReferenceQueue _processReferenceQueue:] ()[详细]

2023-04-12 16:00 分类：问答
Many NSOperationQueues = Many Threads?

I\'m wondering would there be many threads if I hav开发者_如何学运维e one NSOperationQueue in each of my View Controllers, that is, I have many NSOperationQueues in my app.[详细]

2023-04-12 06:10 分类：问答
NSOperationQueue Blocking Main Thread, UIAccelerometerDelegate won't fire

I have a piece of code which calls [NSOperationQueue waitUntilAllOperationsAreFinished], in which the queue, I have placed a sensor detector for the Accelerometer.[详细]

2023-04-11 23:14 分类：问答
Multiple NSURLConnection Problem

This is my code: - (void)saveData:(NSString *)url withName:(NSString *)name{ NSString *URLString=[NSString stringWithFormat:@\"http://www.google.com/reader/atom/%@?n=%d&xt=user/-/state/com.googl[详细]

2023-04-06 15:01 分类：问答
Is it safe to reference an NSOperation instance and call -isFinished?

I create an NSOperation every time my app launches or resigns active. I need to queue them with dependencies such that two never execute at the same time, but one after another.[详细]

2023-04-05 23:27 分类：问答
NSOperationQueue vs NSThread Priority -- controlling how much cpu is consumed in NSOperationQueue

I have some textures and sound effects preloading I need to do asynchronously to create a smooth 开发者_JS百科user experience in an iOS game I am developing.[详细]

2023-04-04 07:03 分类：问答
NSOperationQueue and threads problem

Well I have a serious problem. I have a class that manages connections with NSOperationQueue and delegate methods for that class that are actually NSURLConnection delegate methods. Sometimes, I have t[详细]

2023-04-03 20:50 分类：问答
NSOperationQueue and UITableView release is crashing my app

This is by far the weirdest problem I\'ve been stuck with. I have a UIViewController on a UINavigationController and I want to call a method at viewDidAppear using NSInvocationOperation so it can run[详细]

2023-04-02 23:41 分类：问答