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2014/10/15 ¤U¤È 10:11:15

iphone Programming Glossary: mainqueue

Weak references inside a block

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

^ UIImage image render some image what if by the time I get here self no longer exists NSOperationQueue mainQueue addOperationWithBlock ^ weakSelf setImageViewImage image self.renderQueue addOperation op So my question is let's say that..

Safe update interval for startDeviceMotionUpdatesToQueue:withHandler:?

http://stackoverflow.com/questions/11797857/safe-update-interval-for-startdevicemotionupdatestoqueuewithhandler

0.03 update every 30ms motionManager startDeviceMotionUpdatesToQueue NSOperationQueue mainQueue withHandler ^ CMDeviceMotion motion NSError error myAcceleration motion.userAcceleration.y while self.stopButtonPressed..

On iOS, how to make a cell.imageView refresh its content?

http://stackoverflow.com/questions/12209380/on-ios-how-to-make-a-cell-imageview-refresh-its-content

queue self.operationQueue completionHandler ^ NSURLResponse response NSData data NSError error NSOperationQueue mainQueue addOperationWithBlock ^ UIImage image UIImage imageWithData data cell.imageView.image image cell setNeedsLayout..

UITableView with images scrolls very slowly [duplicate]

http://stackoverflow.com/questions/12703297/uitableview-with-images-scrolls-very-slowly

setObject image forKey imageUrlString finally update the user interface in the main queue NSOperationQueue mainQueue addOperationWithBlock ^ make sure the cell is still visible UITableViewCell updateCell tableView cellForRowAtIndexPath..

Using quaternion instead of roll, pitch and yaw to track device motion

http://stackoverflow.com/questions/19239482/using-quaternion-instead-of-roll-pitch-and-yaw-to-track-device-motion

within the image didFinishSavingWithError self.motionManager startDeviceMotionUpdatesToQueue NSOperationQueue mainQueue withHandler ^ CMDeviceMotion motion NSError error CMQuaternion quat self.motionManager.deviceMotion.attitude.quaternion..

How to make ui responsive all the time and do background updating?

http://stackoverflow.com/questions/5133731/how-to-make-ui-responsive-all-the-time-and-do-background-updating

thread safe UIImage imageNamed is not thread safe but UIImage imageWithContentsOfFile is thread safe. dispatch_queue_t mainQueue dispatch_get_main_queue dispatch_queue_t concurrentQueue dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 dispatch_async.. thumbnail thumbnails objectAtIndex index thumbnail.image UIImage imageWithContentsOfFile thumbnail.url dispatch_sync mainQueue ^ update UIScrollView using thumbnail. It is safe because this block is on main thread. dispatch_apply waits until all..

iPhone:Programmatically compressing recorded video to share?

http://stackoverflow.com/questions/5687341/iphoneprogrammatically-compressing-recorded-video-to-share

self dismissModalViewControllerAnimated YES void copyTempVideoToMediaLibrary NSString videoURL dispatch_queue_t mainQueue dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 dispatch_async mainQueue ^ ALAssetsLibrary library ALAssetsLibrary.. videoURL dispatch_queue_t mainQueue dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 dispatch_async mainQueue ^ ALAssetsLibrary library ALAssetsLibrary alloc init autorelease ALAssetsLibraryWriteVideoCompletionBlock completionBlock..

iPhone Objective C - wait_fences: failed to receive reply: 10004003

http://stackoverflow.com/questions/6580608/iphone-objective-c-wait-fences-failed-to-receive-reply-10004003

How to have a handler to repeat UIView animateWithDuration?

http://stackoverflow.com/questions/6766955/how-to-have-a-handler-to-repeat-uiview-animatewithduration

Objective-C: Asynchronously populate UITableView - how to do this?

http://stackoverflow.com/questions/7491517/objective-c-asynchronously-populate-uitableview-how-to-do-this

op CIMGFSimpleDownloadOperation alloc initWithURLRequest request andDelegate self NSOperationQueue mainQueue addOperation op self setDownloadOperation op Hold onto a reference in case we want to cancel it op release op nil Now when..

iPhone 4 is there an absolutely certain way to have a long term NSTimer fire

http://stackoverflow.com/questions/8449351/iphone-4-is-there-an-absolutely-certain-way-to-have-a-long-term-nstimer-fire

BOOL returnsImmediately void ^invalidator ^ self invalidate dispatch_queue_t mainQueue dispatch_get_main_queue if returnsImmediately dispatch_async mainQueue invalidator return if NSThread isMainThread dispatch_sync.. ^invalidator ^ self invalidate dispatch_queue_t mainQueue dispatch_get_main_queue if returnsImmediately dispatch_async mainQueue invalidator return if NSThread isMainThread dispatch_sync mainQueue invalidator return invalidator Note the thread checks.. if returnsImmediately dispatch_async mainQueue invalidator return if NSThread isMainThread dispatch_sync mainQueue invalidator return invalidator Note the thread checks before using dispatch_sync because... dispatch_sync Discussion ¦] Calling..

Why doesn't Remove Observer from NSNotificationCenter:addObserverForName:usingBlock get called

http://stackoverflow.com/questions/8477629/why-doesnt-remove-observer-from-nsnotificationcenteraddobserverfornameusingbl

defaultCenter addObserverForName FI_NOTES kNotificationsGPSUpdated object nil queue NSOperationQueue mainQueue usingBlock ^ NSNotification note NSLog @ run once and only once NSNotificationCenter defaultCenter removeObserver gpsObserver.. defaultCenter addObserverForName FI_NOTES kNotificationsGPSUpdated object nil queue NSOperationQueue mainQueue usingBlock ^ NSNotification note NSLog @ run once and only once NSNotificationCenter defaultCenter removeObserver gpsObserver..

Should URLForUbiquityContainerIdentifier: be called in a thread outside the main thread?

http://stackoverflow.com/questions/9050359/should-urlforubiquitycontaineridentifier-be-called-in-a-thread-outside-the-main

NSFileManager alloc init NSURL ubiquityContainer fileManager URLForUbiquityContainerIdentifier nil dispatch_queue_t mainQueue dispatch_get_main_queue dispatch_async mainQueue ^ self updateWithUbiquityContainer ubiquityContainer This is from a great.. fileManager URLForUbiquityContainerIdentifier nil dispatch_queue_t mainQueue dispatch_get_main_queue dispatch_async mainQueue ^ self updateWithUbiquityContainer ubiquityContainer This is from a great article located here http oleb.net blog 2011..