2014/10/15 下午 10:05:12

iphone Programming Glossary: collections

http://stackoverflow.com/questions/11183008/basic-array-comparison-algorithm

currentId move on to the next id continue I don't see how that would work What am I missing iphone ios core data collections share improve this question Try something like this Employee.h @property nonatomic NSInteger ID @property nonatomic..

How to make Supplementary View float in UICollectionView as Section Headers do in UITableView plain style

http://stackoverflow.com/questions/13511733/how-to-make-supplementary-view-float-in-uicollectionview-as-section-headers-do-i

for this in the layout attributes I would have used UITableView but I need to create a rather complex hierarchy of collections which is easily achieved with a collection view. Any guidance or sample code would be greatly appreciated iphone uitableview..

Is it possible to access iPhone/iPod Touch music stats through the SDK?

http://stackoverflow.com/questions/2083117/is-it-possible-to-access-iphone-ipod-touch-music-stats-through-the-sdk

Sets the grouping type for the media query query setGroupingType MPMediaGroupingAlbum NSArray albums query collections for MPMediaItemCollection album in albums MPMediaItem representativeItem album representativeItem NSString artistName representativeItem..

Storing iPhone application settings in app

http://stackoverflow.com/questions/2228302/storing-iphone-application-settings-in-app

types of objects you can store in the Defaults A default object must be a property list that is an instance of or for collections a combination of instances of NSData NSString NSNumber NSDate NSArray or NSDictionary. If you want to store any other type..

Cocoa versus Cocoa Touch- What is the difference?

http://stackoverflow.com/questions/2297841/cocoa-versus-cocoa-touch-what-is-the-difference

while Cocoa Touch is the combination of the Foundation and UIKit frameworks. Cocoa and Cocoa Touch sit on top of other collections of frameworks to create the API stacks. The other layers are Media Core Services and Core OS. The main difference between..

what does dollar sign mean in objective-c?

http://stackoverflow.com/questions/4713051/what-does-dollar-sign-mean-in-objective-c

c c osx share improve this question That 䏭 not a feature of the language these are convenience intializers for collections that some people use. For example array foo bar baz expands to NSArray arrayWithObjects foo bar baz nil I 联 not sure if..

NSMutableString as retain/copy

http://stackoverflow.com/questions/4995254/nsmutablestring-as-retain-copy

you can remove the use of mutable strings from interfaces and build the strings when necessary as demonstrated above . collections NSMutableArray NSMutableDictionary NSMutableSet etc on the other hand are required more often in implementations and are..

Creating a JSON Store For iPhone

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

quickly becomes superior. The managed part of managed objects manages complexity in relationships and behaviors. With collections or SQL you have manually manage complexity and can find yourself quickly swamped. In fact I have seen people trying manage..

iPhone use of mutexes with asynchronous URL requests

http://stackoverflow.com/questions/554270/iphone-use-of-mutexes-with-asynchronous-url-requests

My iPhone client has a lot of involvement with asynchronous requests a lot of the time consistently modifying static collections of dictionaries or arrays. As a result it's common for me to see larger data structures which take longer to retrieve from..

iPhone - different ways to store data, advantages and disadvantages

http://stackoverflow.com/questions/5785011/iphone-different-ways-to-store-data-advantages-and-disadvantages

to manage your own storage on the file system. NSArray and NSDictionary provide methods for writing and reading those collections to and from plist files as long as you can store all of your data in one of the supported plist data types. See the Property..

iphone+Difference between nil,NIL and null

http://stackoverflow.com/questions/5908936/iphonedifference-between-nil-nil-and-null

脌 an object. The single instance of NSNull on the other hand is a proper object. NSNull is often used in Foundation collections since they cannot store nil values. In the case of dictionaries objectForKey returns nil to indicate that a given key has.. dict NSMutableDictionary dictionary dict setObject NSNull null forKey @ someKey It 䏭 worth mentioning that Foundation collections have initialisers that use nil as a marker for the end of a list of objects without having to specify the number of elements..

Storing data to NSUserDefaults

http://stackoverflow.com/questions/6696558/storing-data-to-nsuserdefaults

as floats doubles integers Booleans and URLs. A default object must be a property list that is an instance of or for collections a combination of instances of NSData NSString NSNumber NSDate NSArray or NSDictionary . If you want to store any other type..

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

sentinel for them. NSNull null is an object that is intended to be uses in very certain cases like inserting into collections where an non value value is desired but actual nil is not allowed and an object must be used. Note that nil and NSNull stringify..

Can Objective-C protocols and categories be inherited?

http://stackoverflow.com/questions/7470994/can-objective-c-protocols-and-categories-be-inherited

in Objective C iphone objective c ios protocols objective c category share improve this question Categories are collections of methods that are added to a class at run time. Because Objective C uses dynamic binding this means that the methods defined.. or when the program first loads. Categories are added to classes when they the categories are loaded. Protocols define collections of method signatures that the classes conforming to them promise to implement. Once a class has declared that it conforms..

Instantiating Custom Class from NSDictionary

http://stackoverflow.com/questions/830673/instantiating-custom-class-from-nsdictionary

through it on my own I figure someone out there might be able to point me in the right direction. iphone objective c collections nsdictionary share improve this question The setValuesForKeysWithDictionary method along with dictionaryWithValuesForKeys..