nsoperationqueue

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NSOperation to perform uitableview cell image

As i am new in iPad application development please help me in simple problem. I want to display images in the tableview from the server. it is displaying correctly.[详细]

2023-03-10 03:52 分类：问答
NSOperationQueue and NSFetchedResultsController

i use a combination of queue and resultscontroller to update and display some coredata objects. in my uit开发者_开发技巧ableviewcontroller i call every X second a method in my main controller object.[详细]

2023-03-09 05:56 分类：问答
main in my NSOperation subclass not being called

I subclassed NSOperation and implemented the main method. When I added it to an NSOperationQueue, it was not being called. I compared it to sample code and sample projects that do[详细]

2023-03-08 07:04 分类：问答
Correct way to release object which implements NSOperationQueue and Asynchronous requests

I\'m struggling to figure out a solution to my problem, I have a Download class which handles calls to my api, these calls are added to a NSOperationQueue. Each call is assigned a completed and faile[详细]

2023-03-07 03:39 分类：问答
NSOperation finishes in the background, attempts to notify main thread, view no longer exists. Crash

I have an NSOperation running not in the main thread. It is spawned from a UITableViewController. When the operation is complete, I\'d like to reload the tableview since some data h开发者_运维技巧as c[详细]

2023-03-07 02:44 分类：问答
Does an NSOperation spawn a new thread?

Very simp开发者_如何学JAVAly, is there a one to one connection between a thread(or NSThread) and an NSOperation? Or is it abstracted out an operation is kind of a task that can be picked up and run by[详细]

2023-03-05 04:37 分类：问答
Alternative for [NSOperationQueue mainQueue] on ios 3

What is the equivalent of these operations on ios3 [NSOperationQueue mainQueue]; [NSOperat开发者_Python百科ionQueue currentQueue];[详细]

2023-03-05 03:06 分类：问答
How to properly deal with a deallocated delegate of a queued nsoperation

In my current project, several view controllers (like vc) spawn NSOperation objects (like operation) that are executed on a static NSOperationQueue. While the operation is waiting or running, it will[详细]

2023-03-03 04:04 分类：问答
Connection notification to resume NSOperationQueue

I need to download some images from the Internet and right now I\'m using NSOperationQueue. I want to know if it is possible to receive an Internet connection notification to be able to pause/resume[详细]

2023-03-01 06:33 分类：问答
Delaying, cancelling or replacing a ASIFormDataRequest in a NSOperationQueue (for a searchbox)

I\'m successfully making a ASIFormDataRequest using the below code. //get groups if (![self queue]) { [self setQueue:[[[NSOperationQueue alloc] init] autorelease]];[详细]

2023-02-28 10:04 分类：问答