2014/10/15 下午 10:07:00

iphone Programming Glossary: dispatch_queue_priority_background

http://stackoverflow.com/questions/11257006/app-crash-on-4-0-but-not-on-5-0

much info here but any suggestion would be appriciated. Thanks in advance 1. dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_BACKGROUND 0 ^ void dispatch_async dispatch_get_main_queue ^ void 2. UIView animateWithDuration 0.25f animations ^ myView.alpha..

Uiscrollview lazy loading

http://stackoverflow.com/questions/14659650/uiscrollview-lazy-loading

self.assetsArray objectAtIndex arrayIndex __weak typeof self weakSelf self dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_BACKGROUND 0 ^ UIImage tmpImage UIImage alloc initWithCGImage asset.defaultRepresentation.fullScreenImage __strong __typeof__ weakSelf.. self.assetsArray objectAtIndex arrayIndex __weak typeof self weakSelf self dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_BACKGROUND 0 ^ UIImage tmpImage UIImage alloc initWithCGImage asset.aspectRatioThumbnail __strong __typeof__ weakSelf strongSelf weakSelf..

loading images from a background thread using blocks

http://stackoverflow.com/questions/7502073/loading-images-from-a-background-thread-using-blocks

as soon as its loaded the corresponding cell is updated on the mainThread. dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_BACKGROUND 0 ^ void NSData data0 NSData dataWithContentsOfURL someURL UIImage image UIImage imageWithData data0 dispatch_sync dispatch_get_main_queue..

Last In-First Out Stack with GCD?

http://stackoverflow.com/questions/7567827/last-in-first-out-stack-with-gcd

so as not to block the main queue and therefore the UI dispatch_queue_t lowPriorityQueue dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_BACKGROUND 0 dispatch_apply contactsCount lowPriorityQueue ^ size_t idx skip the first 25 because they will be called almost immediately..