2014/10/15 下午 10:08:15

iphone Programming Glossary: engineers

http://stackoverflow.com/questions/10004299/file-system-encryption-for-ios

WWDC 2011 Video Securing iOS Applications Securing Application Data on Apple's video page and hear directly from Apple engineers about the best practices. This video covers pretty much everything that Apple offers. edit According to people on the dev..

NSManagedObjectContext performBlockAndWait: doesn't execute on background thread?

http://stackoverflow.com/questions/11831946/nsmanagedobjectcontext-performblockandwait-doesnt-execute-on-background-thread

. Furthermore performBockAndWait is re entrant so nested calls all happen right in that calling thread. The Core Data engineers have been very clear that the actual thread in which a queue based MOC operation runs is not important. It's the synchronization.. that called the function unless the queue is the main queue or a global queue. Also in the WWDC talks the Core Data engineers stress the point that performBlockAndWait will run in the calling thread. So when I say it does not use the internal queue..

Need content in UIWebView to display quickly

http://stackoverflow.com/questions/1246420/need-content-in-uiwebview-to-display-quickly

more limited than both its Mac and Safari counterparts. Others on the Apple forums report experiences with rude engineers when asking about UIWebView and NSURLCache where in bug reports the engineers say it should work but actual developers say.. forums report experiences with rude engineers when asking about UIWebView and NSURLCache where in bug reports the engineers say it should work but actual developers say it doesn't. http discussions.apple.com thread.jspa threadID 1588010 Jul 29..

Cocoa Touch: When does an NSFetchedResultsController become necessary to manage a Core Data fetch?

http://stackoverflow.com/questions/1263723/cocoa-touch-when-does-an-nsfetchedresultscontroller-become-necessary-to-manage

my understanding . For tables with moderate to large data sets this can lead to a significant performance win. Apple engineers have been quoted as saying that for a 10 000 item database this can reduce your startup time by over 80 and your memory..

Dragging an UIView inside UIScrollView

http://stackoverflow.com/questions/1481826/dragging-an-uiview-inside-uiscrollview

area scrollable but still able to drag and drop the cards. I was doing the hitTest solution above but one of the Apple engineers asked me why I was doing it that way. The simpler solution they suggested was as follows 1 In the UIScrollView class set..

programmatically screenshot works bad on iOS 7

http://stackoverflow.com/questions/18956611/programmatically-screenshot-works-bad-on-ios-7

Force iPhone to output through the speaker, while recording from headphone mic

http://stackoverflow.com/questions/2175082/force-iphone-to-output-through-the-speaker-while-recording-from-headphone-mic

input headset in and play through the speaker iphone audio share improve this question After talking with Apple engineers on the Coreaudio mailing list I've found it's not currently possible to do this with a single RemoteIO audio unit. I'm going..

Core Data Inferred Migration ??Automatic “lightweight” vs Manual

http://stackoverflow.com/questions/2535373/core-data-inferred-migration-automatic-lightweight-vs-manual

configure an inferred mapping model to be as fast during manual processing as automatic UPDATE Bug Report Spoke to the engineers at WWDC and they've asked for a bug report requesting the migrationProgress for the automatic lightweight migration processing...

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

to set it in the UITableViewDataSource's cellForRowAtIndexPath method. It's a real PITA 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..

How do I detect a touch on a UIBezierPath and move a ball along that?

http://stackoverflow.com/questions/4854035/how-do-i-detect-a-touch-on-a-uibezierpath-and-move-a-ball-along-that

an absolute fact as of February 2011 in the latest OS and everything just on the horizon. I've spoken to the relevant engineers at Apple about the issue. It's annoying in many game programming contexts but that's the fact. So it could be that answers..

Alternative to Singleton in Objective-C for better application design

http://stackoverflow.com/questions/5912541/alternative-to-singleton-in-objective-c-for-better-application-design

While a lot of people complaining about Singleton e.g. Google Where Have All the Singletons Gone their fellow engineers also use it anyway http code.google.com mobile analytics docs iphone I know we had some answers in Stack Overflow already..

Advantages of using Core Graphics

http://stackoverflow.com/questions/7669018/advantages-of-using-core-graphics

provide a few general tips. In general a recommendation you'll see in Apple's documentation and in presentations by engineers is that you're best off using the highest level of abstraction that solves your particular problem. If you need to just..

ExtAudioFileWrite to m4a/aac failing on dual-core devices (ipad 2, iphone 4s)

http://stackoverflow.com/questions/8719865/extaudiofilewrite-to-m4a-aac-failing-on-dual-core-devices-ipad-2-iphone-4s

anyone know whether Apple specifies somewhere what their audio codec hardware is capable of It seems that software engineers are stuck playing the hours long guessing game of setting the ~20 parameters in the AudioStreamBasicDescription and AudioChannelLayout..

iOS: formatting decimal numbers

http://stackoverflow.com/questions/9385783/ios-formatting-decimal-numbers

on the locale. How do I do that NSNumberFormatter prints me 1 000 000 000 000 000 000 00 instead it seems Apple engineers never designed the iPhone to be a platform for financial software . NSDecimalNumber description and NSDecimalNumber descriptionWithLocale..

iPhone app without AppStore

http://stackoverflow.com/questions/982476/iphone-app-without-appstore

without AppStore We have an industrial app that currently runs on a very expensive ruggedized PDA. Since most of the engineers we sell to have iPhones we are considering moving to the much nicer newer platform. A couple of questions Is it possible..