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2014/10/15 ¤U¤È 10:05:31
iphone Programming Glossary: continuesGetting user location every n minutes after app goes to background http://stackoverflow.com/questions/10235203/getting-user-location-every-n-minutes-after-app-goes-to-background . Unfortunately the steps are not clear to me. I tried implementing those suggestions but the backgroundTimeRemaining continues to decrease even after I start and stop locationServices. This is how I developed it void applicationDidEnterBackground..
http://stackoverflow.com/questions/1031554/nstimer-doesnt-stop when the viewDidDisappear method is being called. But after a certain amount of switching between views the timer continues firing even after it was invalidated. What's the problem Here is my code NSTimer timer void viewWillAppear BOOL animated..
Ignore certain exceptions when using Xcode's All Exceptions breakpoint http://stackoverflow.com/questions/14370632/ignore-certain-exceptions-when-using-xcodes-all-exceptions-breakpoint Sometimes Xcode will stop on a line like managedObjectContext save error with the following backtrace but the program continues on as if nothing happened if you click Continue. How can I ignore these normal exceptions but still have the debugger stop..
Running IPhone apps while in sleep mode http://stackoverflow.com/questions/1551712/running-iphone-apps-while-in-sleep-mode is able to keep recording a GPS track while in sleep mode. After you push the sleep button on top of the phone the app continues receiving GPS coordinates and recording them. Does anyone know how they're able to do this I'm only aware of the method..
http://stackoverflow.com/questions/2496554/easiest-way-to-support-multiple-orientations-how-do-i-load-a-custom-nib-when-th Also if I explicitly put the initWithNibName function call in the viewDidLoad method that nib is not loaded and it continues with the myViewController.xib file. What's wrong with my call Should I specify a bundle Thanks iphone iphone sdk 3.0 uiviewcontroller..
Enable iPhone accelerometer while screen is locked http://stackoverflow.com/questions/2529422/enable-iphone-accelerometer-while-screen-is-locked
iPhone OS 4 Multitasking - Playing Audio In background http://stackoverflow.com/questions/3007527/iphone-os-4-multitasking-playing-audio-in-background your application stops when the Auto Lock period times out and the screen locks. If you want to ensure that playback continues with the screen locked include the following lines in your application ™s initialization code NSError setCategoryErr nil.. sharedInstance setActive YES error activationErr The AVAudioSessionCategoryPlayback category ensures that playback continues when the screen locks. Activating the audio session puts the specified category into effect. share improve this answer..
iPhone App Localization - English problems? http://stackoverflow.com/questions/3308519/iphone-app-localization-english-problems an en_NZ language file but they're both using the standard English file. I deleted the English language file but it continues to happen... Any ideas on how I can get this to work Thank you d iphone localization localizable.strings share improve..
Disable touches on UIView background so that buttons on lower views are clickable http://stackoverflow.com/questions/3427619/disable-touches-on-uiview-background-so-that-buttons-on-lower-views-are-clickabl system asks hey view does ANYONE in your hierarchy respond to an event at this point . If you say NO event processing continues below you in the visible stack. Per the documentation the default implementation just checks whether the point is in the..
How to properly release an AVCaptureSession http://stackoverflow.com/questions/3741121/how-to-properly-release-an-avcapturesession capture session is an asynchronous operation. That is it doesn't happen immediately. In particular the second thread continues to process video samples and access different instances like the capture session or the input and output devices. So how..
iOS multitasking for an Audio Recording application http://stackoverflow.com/questions/3848172/ios-multitasking-for-an-audio-recording-application out. So I am wondering is it possible to let the user switch to another application in iOS while my application continues to capture audio in the background iphone ios core audio share improve this question You can. Skype does this. You..
http://stackoverflow.com/questions/4015557/uitextview-in-a-uitableviewcell-smooth-auto-resize-shows-and-hides-keyboard-on-i line but when you get to the end of a line the keyboard disappears and then reappears immediately so that if the user continues typing the app misses a character or two. Here are some additional notes on the weird behaviors that I have noticed which..
What happens to an iPhone app when iPhone goes into stand-by mode? http://stackoverflow.com/questions/411436/what-happens-to-an-iphone-app-when-iphone-goes-into-stand-by-mode if the device is playing audio in the right audio session. See DTS Q A QA1626 Audio Session Ensuring audio playback continues when screen is locked for details. Note that the idleTimerDisabled property which can be turned on to prevent the screen..
http://stackoverflow.com/questions/4862707/floodfill-in-iphone this 01234567 0........ 1.XXXX... 2.XOOX... 3.XOOOX.. 4.XXXO.X. 5...X..X. 6...XXX.. 7........ And so the flood fill continues from 4 4 by branching right and down. One of those two branches will then branch into 5 5 . By that time there will be no..
Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related? http://stackoverflow.com/questions/4961386/event-handling-for-ios-how-hittestwithevent-and-pointinsidewithevent-are-r If the return is YES it sends hitTest withEvent messages to its subviews. it starts from the top level subview and continues to other views until a subview returns a non nil object or all subviews receive the message. If a subview returns a non..
Can you use cancel/isCancelled with GCD/dispatch_async? http://stackoverflow.com/questions/5449469/can-you-use-cancel-iscancelled-with-gcd-dispatch-async all variable contexts memory etc specifically in setUpHere . And you must release them in wrapUpHere . This idiom continues to work if you go deeper and deeper while in the BG. Alternately do exactly what BJ shows in his example. If you use BJ's..
How do I debug with NSLog(@“Inside of the iPhone Simulator”)? http://stackoverflow.com/questions/558568/how-do-i-debug-with-nsloginside-of-the-iphone-simulator C object or the result of a method call. Make sure to click the Continue checkbox at the top right so execution continues after the log. Advantages of this over NSLog and printf It's on the fly. You don't have to recompile and restart to add..
Why is object not dealloc'ed when using ARC + NSZombieEnabled http://stackoverflow.com/questions/8408071/why-is-object-not-dealloced-when-using-arc-nszombieenabled even though SecondaryViewController is deallocated. This caused problems in my app b c NSNotificationCenter continues to send notifications to ActionsController and the resulting handlers cause the app to crash. I created a simple app illustrating..
http://stackoverflow.com/questions/986392/programmatically-force-a-uiscrollview-to-stop-scrolling-for-sharing-a-table-vie is at rest but if the user hits the segmented control while the table is still moving i.e. decelerating the table view continues to decelerate from the old offset effectively overriding my contentOffset assignment. Is there a way to force the table..
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