2014/10/15 下午 10:07:04

iphone Programming Glossary: dispatch_time_now

GCD : How to write and read to variable from two threads

http://stackoverflow.com/questions/11070947/gcd-how-to-write-and-read-to-variable-from-two-threads

dispatch_source_create DISPATCH_SOURCE_TYPE_TIMER 0 0 queue if timer dispatch_source_set_timer timer dispatch_time DISPATCH_TIME_NOW NSEC_PER_SEC interval interval NSEC_PER_SEC leeway dispatch_source_set_event_handler timer ^ ... Put data into ivar mMutableArray.. dispatch_source_create DISPATCH_SOURCE_TYPE_TIMER 0 0 queue if timer1 dispatch_source_set_timer timer1 dispatch_time DISPATCH_TIME_NOW NSEC_PER_SEC interval interval NSEC_PER_SEC leeway dispatch_source_set_event_handler timer1 ^ ... if mMutableArray Read..

iPhone - designing my own viewController transition

http://stackoverflow.com/questions/12568837/iphone-designing-my-own-viewcontroller-transition

sharedApplication beginIgnoringInteractionEvents CATransaction setCompletionBlock ^ dispatch_after dispatch_time DISPATCH_TIME_NOW int64_t transition.duration NSEC_PER_SEC dispatch_get_main_queue ^ UIApplication sharedApplication endIgnoringInteractionEvents.. sharedApplication beginIgnoringInteractionEvents CATransaction setCompletionBlock ^ dispatch_after dispatch_time DISPATCH_TIME_NOW int64_t transition.duration NSEC_PER_SEC dispatch_get_main_queue ^ UIApplication sharedApplication endIgnoringInteractionEvents..

Delay the return value instead of whole method

http://stackoverflow.com/questions/15128372/delay-the-return-value-instead-of-whole-method

back with return value with delay void ayncGetValue void ^ id value returnBlock dispatch_time_t popTime dispatch_time DISPATCH_TIME_NOW 10.f NSEC_PER_SEC delay 10 seconds dispatch_after popTime dispatch_get_main_queue ^ returnBlock @ hello block Usage obj..

UITableView & UIScrollview stop cocos2d animations

http://stackoverflow.com/questions/15185720/uitableview-uiscrollview-stop-cocos2d-animations

of such freezing and how can i avoid it void mainLoop id sender if dispatch_semaphore_wait frameRenderingSemaphore DISPATCH_TIME_NOW 0 return if self.useCocoaFriendlyRendering dispatch_sync frameRenderingDispatchQueue ^ HERE dispatch_async make black screen.. in CCDirectorDisplayLink with a semaphore void mainLoop id sender if dispatch_semaphore_wait frameRenderingSemaphore DISPATCH_TIME_NOW 0 return if useCocoaFriendlyRendering dispatch_async frameRenderingDispatchQueue ^ EAGLContext setCurrentContext openGLView_.context..

How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?

http://stackoverflow.com/questions/4139219/how-do-you-trigger-a-block-after-a-delay-like-performselectorwithobjectafter

int parameter1 12 float parameter2 144.1 Delay execution of my block for 10 seconds. dispatch_after dispatch_time DISPATCH_TIME_NOW 10 NSEC_PER_SEC dispatch_get_main_queue ^ NSLog @ parameter1 d parameter2 f parameter1 parameter2 share improve this answer..

Displaying UIAlertView after some time

http://stackoverflow.com/questions/4597628/displaying-uialertview-after-some-time

EDIT You can now also use GCD's dispatch_after API double delayInSeconds 5 dispatch_time_t popTime dispatch_time DISPATCH_TIME_NOW delayInSeconds NSEC_PER_SEC dispatch_after popTime dispatch_get_main_queue ^ void UIAlertView alertView UIAlertView alloc..

Asynchronously dispatched recursive blocks

http://stackoverflow.com/questions/5394647/asynchronously-dispatched-recursive-blocks

step 0 __block dispatch_block_t myBlock myBlock ^ if step STEPS_COUNT return step dispatch_time_t delay dispatch_time DISPATCH_TIME_NOW NSEC_PER_SEC 2 dispatch_after delay dispatch_get_current_queue myBlock dispatch_time_t delay dispatch_time DISPATCH_TIME_NOW.. NSEC_PER_SEC 2 dispatch_after delay dispatch_get_current_queue myBlock dispatch_time_t delay dispatch_time DISPATCH_TIME_NOW NSEC_PER_SEC 2 dispatch_after delay dispatch_get_current_queue myBlock The block is invoked once from outside. When the.. to call dispatch_time every time if you want to delay dispatching the block. step dispatch_time_t delay dispatch_time DISPATCH_TIME_NOW NSEC_PER_SEC 2 dispatch_after delay dispatch_get_current_queue myBlock EDIT I understand. The block is stored in stack by..

Custom transition between two UIViews

http://stackoverflow.com/questions/5511514/custom-transition-between-two-uiviews

elsewhere probably to view B 's didMoveToSuperview double delayInSeconds 0.3 dispatch_time_t popTime dispatch_time DISPATCH_TIME_NOW delayInSeconds NSEC_PER_SEC dispatch_after popTime dispatch_get_main_queue ^ void UIView transitionWithView self.view duration..

CADisplayLink OpenGL rendering breaks UIScrollView behaviour

http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour

your CADisplayLink callback you can use code like the following if dispatch_semaphore_wait frameRenderingSemaphore DISPATCH_TIME_NOW 0 return dispatch_async openGLESContextQueue ^ EAGLContext setCurrentContext context Render here dispatch_semaphore_signal..

How can I fade-out the sound played by MPMusicPlayerController?

http://stackoverflow.com/questions/6395375/how-can-i-fade-out-the-sound-played-by-mpmusicplayercontroller

iPod MPMusicPlayerController iPodMusicPlayer int64_t delay 2LL NSEC_PER_SEC dispatch_after dispatch_time DISPATCH_TIME_NOW delay dispatch_get_current_queue ^ while iPod.volume .1 iPod.volume .1 NSThread sleepForTimeInterval 0.1 share improve..

Using Grand Central Dispatch, how can I check if there is a block already running?

http://stackoverflow.com/questions/6694439/using-grand-central-dispatch-how-can-i-check-if-there-is-a-block-already-runnin

I describe some of this in my answer here using the following code if dispatch_semaphore_wait frameRenderingSemaphore DISPATCH_TIME_NOW 0 return dispatch_async openGLESContextQueue ^ EAGLContext setCurrentContext context Render here dispatch_semaphore_signal..

Access Method After UIImageView Animation Finish

http://stackoverflow.com/questions/9283270/access-method-after-uiimageview-animation-finish

withObject nil afterDelay instructions.animationDuration or use dispatch_after dispatch_time_t popTime dispatch_time DISPATCH_TIME_NOW instructions.animationDuration NSEC_PER_SEC dispatch_after popTime dispatch_get_main_queue ^ void self animationDidFinish..