2014/10/15 下午 10:10:20

iphone Programming Glossary: initialisation

viewDidLoad is in fact called every time there is a segue transition

http://stackoverflow.com/questions/11969452/viewdidload-is-in-fact-called-every-time-there-is-a-segue-transition

41506 And apples own documentation indicate that a view is only unloaded when memory is low. I am currently doing initialisation in viewDidLoad making the assumption that it is called with every segue transition. Am I missing something here iphone..

iPhone - Splash Screen with progress bar

http://stackoverflow.com/questions/1397426/iphone-splash-screen-with-progress-bar

is not being updated... Inside my view controller I load first the splash view with a parameter how many steps my initialisation has and then I start a second thread via NSTimer and after each initialisation step I tell the SplashView to display the.. view with a parameter how many steps my initialisation has and then I start a second thread via NSTimer and after each initialisation step I tell the SplashView to display the new progress value. All looks good in theory but when running this app the progress..

How to decrypt an encrypted Apple iTunes iPhone backup?

http://stackoverflow.com/questions/1498342/how-to-decrypt-an-encrypted-apple-itunes-iphone-backup

interoperability suggesting a keysize of 128 and CBC mode may be used. Aside from any other obfuscation a key and initialisation vector IV salt are required. One might assume that the key is a manipulation of the backup password that users are prompted..

OpenGL ES; rendering texture created from CGBitmapContext

http://stackoverflow.com/questions/2713890/opengl-es-rendering-texture-created-from-cgbitmapcontext

I am executing the following which I have derived from a few different tutorials Just a single render pass initialisation code not shown but works fine for untextured primitives glMatrixMode GL_PROJECTION glLoadIdentity glOrthof 0 xSize 0 ySize..

iPhone App Localization - English problems?

http://stackoverflow.com/questions/3308519/iphone-app-localization-english-problems

standardUserDefaults removeObjectForKey @ AppleLanguages It's safe to remove at this point because all the bundle initialisation has been completed. Your app should now be using a Localization.strings file within the en_GB.lproj directory. It's a bit..

Placing calls to super?

http://stackoverflow.com/questions/3466889/placing-calls-to-super

c cocoa touch share improve this question I'd say that it doesn't usually matter unless The method is doing initialisation of instance variables which viewDidLoad usually wouldn't be doing as that's the init method's job in which case the super..

Programatically Switching Views in Cocoa Touch

http://stackoverflow.com/questions/370055/programatically-switching-views-in-cocoa-touch

have yet to see any examples that attempt to do this and I dont seem to understand enough about the relationships and initialisation procedure between UIViewController UIView objects to achive this programatically. iphone objective c cocoa touch share..

Play sound on iPhone even in silent mode

http://stackoverflow.com/questions/3740528/play-sound-on-iphone-even-in-silent-mode

Note if you play music or sounds then iPod playback will be paused. Once this has been done probably somewhere in the initialisation of one of your classes that plays the sounds you can instanciate sounds like this probably an instance variable AVAudioPlayer..

Proper way to instantiate an NSDecimalNumber from float or double

http://stackoverflow.com/questions/5304855/proper-way-to-instantiate-an-nsdecimalnumber-from-float-or-double

be some issues relating to precision and conversion to from doubles with NSDecimalNumber . Especially when you use the initialisation members inherited from NSNumber. I knocked up the test below double dbl 36.76662445068359375000 id xx1 NSDecimalNumber numberWithDouble.. dn3 doubleValue 36.76662445068357953915 description 36.76662445068359375 So the most consistently accurate conversion initialisation from a double or float to NSDecimalNumber is using decimalNumberWithString . But as Brad Larson has pointed out in his answer..

Draw Line with gesture

http://stackoverflow.com/questions/6436990/draw-line-with-gesture

of a subview obscures all or part of the content of its parent view So try make the imageview the parent do your initialisation like so instance variables UIImageView imageView MyHolderView holderView imageView UIImageView alloc initWithFrame mainRect..

How to pass data to detail view after being selected in a table view?

http://stackoverflow.com/questions/7562258/how-to-pass-data-to-detail-view-after-being-selected-in-a-table-view

The userNamelbl isn't instantiated until the view is loaded from the nib file. This doesn't happen immediately at initialisation but will have happened by the time viewDidLoad is called. So you should to declare a property in DetailView to store your..

How to program a real-time accurate audio sequencer on the iphone?

http://stackoverflow.com/questions/907137/how-to-program-a-real-time-accurate-audio-sequencer-on-the-iphone

i NSTimer scheduledTimerWithTimeInterval 0.14 target self selector @selector drumLoop userInfo nil repeats YES In the initialisation I create the sound engine load some sounds to different buffers and then establish the sequencer loop with NSTimer. audio.. 0.1 NSThread detachNewThreadSelector @selector drumLoop toTarget self withObject nil In the initialisation I store the time for the next beat and create a new thread. void drumLoop id info NSThread setThreadPriority 1.0 while 1..

Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?

http://stackoverflow.com/questions/9119042/why-does-apple-recommend-to-use-dispatch-once-for-implementing-the-singleton-pat

nil static dispatch_once_t onceToken 0 dispatch_once onceToken ^ sharedInstance MyClass alloc init Do any other initialisation stuff here return sharedInstance Isn't it a bad idea to instantiate the singleton asynchronously in the background I mean..

Paypal error : FILE SYSTEM CHECK FAILED

http://stackoverflow.com/questions/9917292/paypal-error-file-system-check-failed

Paypal iPhone API since before august 2011 have migrated their mac on osX Lion Now have this message during Paypal initialisation and after a new app compilation ... and does NOT have a Jailbroken device of course Here is the solution Just download the..