2014/10/15 下午 10:09:18

iphone Programming Glossary: former

When to use Core Data's NSMainQueueConcurrencyType?

http://stackoverflow.com/questions/11176275/when-to-use-core-datas-nsmainqueueconcurrencytype

a NSPrivateQueueConcurrencyType as the master context and the NSMainQueueConcurrencyType as a child context for the former. In this way the main context will deal only with objects that are in memory. Save to disk are performed by the private..

Conditional support of iOS 6 features in an iOS 5 app

http://stackoverflow.com/questions/12589866/conditional-support-of-ios-6-features-in-an-ios-5-app

6 but how do you know when to use what You could detect iOS version and have an if statement dictate if you use the former or latter but this is fragile you'll make a mistake maybe a newer OS in the future will have a new way to do this. The correct..

UITableView with images scrolls very slowly [duplicate]

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

lazy loading see Concurrency Programming Guide for discussion of different asynchronous operations technologies . The former enjoys an advantage that you can specify precisely how many concurrent operations are permissible which is very important..

Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:

http://stackoverflow.com/questions/12737860/assertion-failure-in-dequeuereusablecellwithidentifierforindexpath

iPhone: Base versus Active versus Deployment target

http://stackoverflow.com/questions/1358033/iphone-base-versus-active-versus-deployment-target

settings submission share improve this question The difference between the Base and Active SDK is that the former is the default SDK set for the project and the latter is the SDK you are currently building against. So it is possible for..

Which mobile programming environment do you recommend for a startup to target? [closed]

http://stackoverflow.com/questions/1599725/which-mobile-programming-environment-do-you-recommend-for-a-startup-to-target

is a difference in paths between running your own business and learning an API so that others will hire you. In the former you should develop for the platform that has the best business model and the one you would most like to use as a consumer...

Can I tell if the iPhone has a passcode?

http://stackoverflow.com/questions/2547295/can-i-tell-if-the-iphone-has-a-passcode

the data is in some way protected. iphone security locking share improve this question For AppStore or not If the former no way. In 3.x the passcode is stored on the keychain that means you have to get into the SpringBoard process to determine..

why most of the objects we create in iphone are pointers

http://stackoverflow.com/questions/3044292/why-most-of-the-objects-we-create-in-iphone-are-pointers

may have different sizes. In C one can use both automatic stack and dynamic heap storage for classes however in the former case one must beware of slicing when a derived type is assigned to a base type resulting in the object losing the content..

if (self = [super init]) vs. if ((self = [super init]))

http://stackoverflow.com/questions/3059232/if-self-super-init-vs-if-self-super-init

would be FALSE. Which one is the correct way to use when initializing your own classes Apple documentation uses the former one for example here which style I'm actually using now. iphone objective c class initialization share improve this question..

How to detect circular gesture via Gesture Recognizer?

http://stackoverflow.com/questions/4600690/how-to-detect-circular-gesture-via-gesture-recognizer

gesture like grabbing and turning a real world knob If the latter take a look at UIRotationGestureRecognizer . If the former you're pretty much on your own. You can certainly implement your solution as your own custom gesture recognizer this is..

how can I handle push notification when my app is not running

http://stackoverflow.com/questions/4782352/how-can-i-handle-push-notification-when-my-app-is-not-running

value may either be a string for the alert message or a dictionary with two keys body and show view. The value of the former is the alert message and the latter is a Boolean false or true . If false the alert 䏭 View button is not shown. The default..

Creating a JSON Store For iPhone

http://stackoverflow.com/questions/5237943/creating-a-json-store-for-iphone

entities here or just managed objects Remember entities are to managed objects what classes are to instances. If the former then yes Core Data will be a lot of work up front if the later then it won't be. You can build up very large complex graphs..

IPhone iOS 4.3 camera focus square - removeable programatically?

http://stackoverflow.com/questions/5402461/iphone-ios-4-3-camera-focus-square-removeable-programatically

square. I didn't find anything about it in apple's UIImagePickerController documentation. The square didn't exist in former iOS versions... iphone ios sdk focus camera share improve this question You may want to try to lock the focus to disable..

Background GPS in iOS. Is this possible?

http://stackoverflow.com/questions/5526403/background-gps-in-ios-is-this-possible

be notified of significant location changes or to simply continue using the GPS while executing in the background. The former 𤴆he approach recommended by Apple 㽘ses less power at the cost of accuracy this blog post indicates that the updates are..

Using NSMutableDictionary as backing store for properties

http://stackoverflow.com/questions/5873776/using-nsmutabledictionary-as-backing-store-for-properties

foo obj.foo and obj.foo foo that's why it doesn't work. Property access syntax is synonymous with message syntax the former is exactly the same as foo obj foo and the latter is exactly the same as obj setFoo foo . There is no KVC code to intercept...

What are the differences between nil, NULL and [NSNULL nil]?

http://stackoverflow.com/questions/6814427/what-are-the-differences-between-nil-null-and-nsnull-nil

nil id foo nil They are both defined to be equal to the value zero and although you could use them interchangeably the former is seen mainly within Obj C for traditional pointers like setting void context pointers to NULL and nil is used for all..

Save An Image To Application Documents Folder From UIView On IOS

http://stackoverflow.com/questions/6821517/save-an-image-to-application-documents-folder-from-uiview-on-ios

not entering the code correctly or those suggestions don't work with the way I have my code set up. It's likely the former. I'd like to save the image in the UIImageView using the same action a save button I'm using to save the text in the UITextFields...

Animating custom-drawn UITableViewCell when entering edit mode

http://stackoverflow.com/questions/742829/animating-custom-drawn-uitableviewcell-when-entering-edit-mode

layoutSubviews By doing it this way I was able to remove the setFrame override found in ABTableViewCell.m because its former logic plus my additions are now found in layoutSubviews. I set a light grey background on the cells to verify a custom background..

Simulating location changes for `startMonitoringSignificantLocationChanges`

http://stackoverflow.com/questions/8541973/simulating-location-changes-for-startmonitoringsignificantlocationchanges

Location menu Both of these work acceptably for simulating an initial fix. For example choose 'Apple' from the former or 'Moscow' from the latter. However subsequent changes to either of these will NOT trigger another location update in the..

Is there a way to downgrade from iOS 5.1 to iOS 5.0? [closed]

http://stackoverflow.com/questions/9649313/is-there-a-way-to-downgrade-from-ios-5-1-to-ios-5-0

4.3 from here . Copy the 5.1 SDK and Device Support folders from the 4.3 installer into your Xcode 4.2 folder. The former goes into Platforms iPhoneOS.platform Developer SDKs and the latter into Platforms iPhoneOS.platform DeviceSupport share..