2014/10/15 下午 10:13:05

iphone Programming Glossary: queuing

Downloading multiple files in iphone app(Objective c)

http://stackoverflow.com/questions/1016040/downloading-multiple-files-in-iphone-appobjective-c

this question I've done this before when I wanted to download 10 XML files at the same time it was much faster than queuing them to download one after the other . I used the libraries found here http github.com leonho iphone libs tree master They..

Optimized Image Loading in a UIScrollView

http://stackoverflow.com/questions/1098234/optimized-image-loading-in-a-uiscrollview

few items to consider Try loading your ThumbnailView's with a single image at the start and disabling the NSOperation queuing just skip everything following the if loaded check. This will give you an immediate idea whether the NSOperation code is.. should track whether an NSOperation has been initiated using an atomic property on the ThumbnailView instance. Prevent queuing another operation if that property is set and only unset that property along with loaded at the end of the NSOperation processes...

Weak references inside a block

http://stackoverflow.com/questions/11603284/weak-references-inside-a-block

references inside a block I'm using an NSOperationQueue and queuing up NSOperationBlocks . Now blocks have a strong reference to any instances in the block and the calling object also has..

iPhone - dequeueReusableCellWithIdentifier usage

http://stackoverflow.com/questions/2928873/iphone-dequeuereusablecellwithidentifier-usage

Add elements to the cell return cell The difference is that people use the same identifier for every cell so dequeuing one only avoids to alloc a new one. For me the point of queuing was to give each cell a unique identifier so when the app.. people use the same identifier for every cell so dequeuing one only avoids to alloc a new one. For me the point of queuing was to give each cell a unique identifier so when the app asks for a cell it already displayed neither allocation nor element..

NSThread vs. NSOperationQueue vs. ??? on the iPhone

http://stackoverflow.com/questions/3041837/nsthread-vs-nsoperationqueue-vs-on-the-iphone

of many items at once. NSOperationQueue is smart enough to only create about as many threads as there are cores queuing the remaining operations. With NSThread creating 100 threads to cache 100 images is probably overkill and somewhat inefficient...

sqlite and threading with iPhone SDK

http://stackoverflow.com/questions/4338031/sqlite-and-threading-with-iphone-sdk

thought. I've never been able to get a stable System with mutliple threads and most writes aren't that important that queuing really helps. As per request some more Infos I have a subclass of NSOperation that I instantiate with the model object I..