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2014/10/15 ¤U¤È 10:04:34
iphone Programming Glossary: bghttp://stackoverflow.com/questions/12497776/new-image-name-for-iphone-5 image has to be default 568h@2x but this does not seem to be the case for other images. Like if my background is bg.png and bg@2x.png I tried using bg 568h@2x.png but that does not work. Can somebody tell me what the images need to be named.. has to be default 568h@2x but this does not seem to be the case for other images. Like if my background is bg.png and bg@2x.png I tried using bg 568h@2x.png but that does not work. Can somebody tell me what the images need to be named to support.. but this does not seem to be the case for other images. Like if my background is bg.png and bg@2x.png I tried using bg 568h@2x.png but that does not work. Can somebody tell me what the images need to be named to support the iPhone 5 iphone..
How many times do I release an allocated or retained object? http://stackoverflow.com/questions/3730804/how-many-times-do-i-release-an-allocated-or-retained-object not before I release it. My question is Do I just check if the retainCount is greater than zero and then release it if bg retainCount 0 bg release or Should I release it as many times as its retainCount while bg retainCount 0 bg release Thanks.. it. My question is Do I just check if the retainCount is greater than zero and then release it if bg retainCount 0 bg release or Should I release it as many times as its retainCount while bg retainCount 0 bg release Thanks for your help .. zero and then release it if bg retainCount 0 bg release or Should I release it as many times as its retainCount while bg retainCount 0 bg release Thanks for your help iphone memory cocos2d retain retaincount share improve this question ..
How to customize the background/border colors of a grouped table view cell? http://stackoverflow.com/questions/400965/how-to-customize-the-background-border-colors-of-a-grouped-table-view-cell but I've confirmed with Apple engineers that this is currently the only way. Update Here's the code for that custom bg view. There's a drawing bug that makes the rounded corners look a little funny but we moved to a different design and scrapped..
Is there a way to make drawRect work right NOW? http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now self setNeedsDisplay self layer displayIfNeeded #endif #ifdef BACKGROUNDMETHOD here the painting is being done in the bg we have been called here in the foreground to inval self setNeedsDisplay #endif You can see for yourself which methods work..
Can you use cancel/isCancelled with GCD/dispatch_async? http://stackoverflow.com/questions/5449469/can-you-use-cancel-iscancelled-with-gcd-dispatch-async any beginners using this six part background template. Note that as BJ highlights below whenever you break out of the bg process... you must clean up any variables you have open In my idiom you must allocate all variable contexts memory etc..
iPhone - Create a semi transparent rectangle with opaque text http://stackoverflow.com/questions/5795688/iphone-create-a-semi-transparent-rectangle-with-opaque-text
How to Maintain VOIP socket connection in background? http://stackoverflow.com/questions/5987495/how-to-maintain-voip-socket-connection-in-background true m_pingTimer CreateTimer pingTimeout PingTimerCallback result is ignored And StartLongBGTask is a m_bgTask UIApplication sharedApplication beginBackgroundTaskWithExpirationHandler ^ UIApplication sharedApplication endBackgroundTask.. sharedApplication beginBackgroundTaskWithExpirationHandler ^ UIApplication sharedApplication endBackgroundTask m_bgTask m_bgTask UIBackgroundTaskInvalid This is needed to make sure that application will not be suspended before sending the.. beginBackgroundTaskWithExpirationHandler ^ UIApplication sharedApplication endBackgroundTask m_bgTask m_bgTask UIBackgroundTaskInvalid This is needed to make sure that application will not be suspended before sending the ping and..
iOS, Restarting animation when coming out of the background http://stackoverflow.com/questions/6042472/ios-restarting-animation-when-coming-out-of-the-background UIViewAnimationOptionAllowUserInteraction UIViewAnimationOptionBeginFromCurrentState animations ^ bg setFrame CGRectMake 0 0 1378 1005 completion nil i tried putting a set frame in front of the animation but that just makes.. 0 0 1378 1005 completion nil i tried putting a set frame in front of the animation but that just makes it snap. bg setFrame CGRectMake 0 0 1378 1005 any ideas iphone objective c ios ipad core animation share improve this question .. following code. view.layer removeAllAnimations this following CGRect is the point where your view originally started bg setFrame CGRectMake 0 0 1378 1005 and in the void applicationDidBecomeActive UIApplication application you call a method..
GCD, Threads, Program Flow and UI Updating http://stackoverflow.com/questions/7290931/gcd-threads-program-flow-and-ui-updating button which invokes the long running work a status label and I added a slider to show I can move the slider while the bg work is done. on click of button IBAction doWork id sender self feedbackLabel setText @ Working ... self doWorkButton setEnabled.. IBAction doWork id sender self feedbackLabel setText @ Working ... self doWorkButton setEnabled NO async queue for bg work main queue for updating ui on main thread dispatch_queue_t queue dispatch_queue_create com.sample 0 dispatch_queue_t.. queue dispatch_queue_create com.sample 0 dispatch_queue_t main dispatch_get_main_queue do the long running work in bg async queue within that call to update UI on main thread. dispatch_async queue ^ self performLongRunningWork dispatch_async..
Load image to a tableView from URL iphone sdk http://stackoverflow.com/questions/7565123/load-image-to-a-tableview-from-url-iphone-sdk concurrentQueue dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 this will start the image loading in bg dispatch_async concurrentQueue ^ NSData image NSData alloc initWithContentsOfURL imageURL this will set the image when..
Indent the text in a UITextField http://stackoverflow.com/questions/7565645/indent-the-text-in-a-uitextfield verticalPadding 2 CGRect editingRectForBounds CGRect bounds return self textRectForBounds bounds @end Usage UIImage bg UIImage imageNamed @ textfield.png CGRect rect CGRectMake 0 0 bg.size.width bg.size.height MyUITextField textfield MyUITextField.. self textRectForBounds bounds @end Usage UIImage bg UIImage imageNamed @ textfield.png CGRect rect CGRectMake 0 0 bg.size.width bg.size.height MyUITextField textfield MyUITextField alloc initWithFrame rect autorelease textfield.verticalPadding.. bounds @end Usage UIImage bg UIImage imageNamed @ textfield.png CGRect rect CGRectMake 0 0 bg.size.width bg.size.height MyUITextField textfield MyUITextField alloc initWithFrame rect autorelease textfield.verticalPadding 10 textfield.horizontalPadding..
Core Data's NSPrivateQueueConcurrencyType and sharing objects between threads http://stackoverflow.com/questions/8637921/core-datas-nsprivatequeueconcurrencytype-and-sharing-objects-between-threads 0 do something with firstObject still unacceptable since I'm sharing my results array objects between the bg queue and the main queue Do I still need to use the managed object IDs to do that iphone core data concurrency ios5 share..
Is UIGraphicsBeginImageContext thread safe? http://stackoverflow.com/questions/11528803/is-uigraphicsbeginimagecontext-thread-safe background and call that method in the background So as you can see he adds an operation to a _queue which runs on a BG thread which calls renderedGraphOfSize which calls UIGraphicsBeginImageContext . So what's the deal I am getting some crashes..
XCode 5 Crashes on AppStore Validation http://stackoverflow.com/questions/18913964/xcode-5-crashes-on-appstore-validation
Line artifacts in mobile Safari http://stackoverflow.com/questions/3903106/line-artifacts-in-mobile-safari bad when it breaks apart an image that is chopped in two different divs for a button or something. I can't put a BG in the parent of the two divs because they are transparent .pngs. Any solution or just deal with it capture of the problem..
Rendering a CGPDFPage into a UIImage http://stackoverflow.com/questions/4639781/rendering-a-cgpdfpage-into-a-uiimage CGPointZero UIGraphicsBeginImageContext pageRect.size CGContextRef context UIGraphicsGetCurrentContext White BG CGContextSetRGBFillColor context 1.0 1.0 1.0 1.0 CGContextFillRect context pageRect CGContextSaveGState context Next 3..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events of the apps you mentioned before but it works for me. Hope I could help Update After measuring the time of the BG task there was a surprise. The BG Task is limited to 600 seconds. This is the exact minimum time of the VoIP minimumtime.. before but it works for me. Hope I could help Update After measuring the time of the BG task there was a surprise. The BG Task is limited to 600 seconds. This is the exact minimum time of the VoIP minimumtime setKeepAliveTimeout 600 . So THIS.. the long running task dispatch_async dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 ^ while 1 NSLog @ BGTime left f UIApplication sharedApplication .backgroundTimeRemaining self doSomething sleep 1 void applicationDidEnterBackground..
Can you use cancel/isCancelled with GCD/dispatch_async? http://stackoverflow.com/questions/5449469/can-you-use-cancel-iscancelled-with-gcd-dispatch-async YourUIStateMachine inbetween pleaseAbandonYourEfforts false that's it void attentionBGIsAllDone you get here when the process finishes whether by completion or if we have asked it to cancel itself. self typically.. work dispatch_async dispatch_get_main_queue ^ ... void actuallyProcedurallyBuildInBackground we are actually in the BG here... self setUpHere set up any variables contexts etc you need right here DO NOT open any variables contexts etc in buildGuts.. operation Whatever technique you use MAKE SURE you clean up all your variables contexts etc before abandoning the BG process. and then you must do this...... we have finished. it's critical to let the foreground know NOW or else it will..
slow scrolling of UITableView [duplicate] http://stackoverflow.com/questions/6410997/slow-scrolling-of-uitableview row cell.detailTextLabel.numberOfLines 6 cell.detailTextLabel.backgroundColor UIColor clearColor gradiant BG for cells UIImage image UIImage imageNamed @ bg2.gif UIImageView imageView UIImageView alloc initWithImage image imageView.contentMode.. dequeued. cell.textLabel.textColor UIColor darkGrayColor cell.textLabel.backgroundColor UIColor clearColor gradiant BG for cells UIImage image UIImage imageNamed @ bg2.gif UIImageView imageView UIImageView alloc initWithImage image imageView.contentMode..
How do I start playing audio when in silent mode & locked in iOS 6? http://stackoverflow.com/questions/9725192/how-do-i-start-playing-audio-when-in-silent-mode-locked-in-ios-6 press home BTN. Which suggest that they use some method that gives them permission to run while locked but not in the BG. Which is what I need Also When you ask how much time you have left running you get aprox 10 min. By dropping an infinite..
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