nsset
xcode: NSArray slice method?
How can I create a NSSet or NSArray X with first 5 element开发者_如何学JAVAs of NSArray or NSSet Y?NSArray *X = [NSArray arrayWithObjects:@\"foo\", @\"bar\", @\"test\", @\"blah\", @\"yeah\", @\"lost\"[详细]
2023-02-27 01:22 分类:问答NSSet -member to check equality of NSValue
I have a NSSet containing many thousands of NSValue objects (wrapping CGPoints). I would like to very quickly find if a given CGPoint value exists in the NSSet. It seems to me that the member: method[详细]
2023-02-26 19:07 分类:问答using NSSet relationship to populate cellForRow
I\'ve looked through many posts and still not sure how to resolve this.Hope someone can help. It works until hitting the last data source meth开发者_C百科od, cellForRow.[详细]
2023-02-23 08:20 分类:问答I'm having problems un-archiving an NSMutableSet with circular references
I\'m having problems unarchiving an NSMutableSet object in my iPhone (iOS 4.3) app. I have a subview of UIImageView that contains an ivar of type NSMutableSet. I have defined the NSMutableSet in the[详细]
2023-02-19 20:05 分类:问答Does NSSet use hash to define uniqueness?
I\'ve been working under the assumption that NSSe开发者_如何学Pythont used hash to look up potential matches, and then called isEqual on each of those to check for real collisions, but I realized that[详细]
2023-02-14 10:10 分类:问答Proper way to get possibly through Cocoa Bindings the last element of a relationship in Core Data
I have a managed-object X with a relationship to a list of [1:N) Y objects. (X and Y objects are stored using Core Data)[详细]
2023-02-12 19:50 分类:问答Set an object to nil after added them to a container?
I thought that NSArray/NSDictionary/NSSet and their mutable subclasses just added the pointer to the object, and not the object it self.[详细]
2023-02-10 17:48 分类:问答Retrieving an NSManagedObject from an NSSet
I\'ve got two entities with a one-to-many relationship between them. The e开发者_开发百科ntity that holds \"many\" has the expected NSSet property. What I\'m not sure is how to access a specific eleme[详细]
2023-02-10 09:49 分类:问答Save list of CGPoints using NSUserDefaults
I have a bunch of CGPoints from a CCTMXLayer I want to save to NSUserDefaults but cannot seem to figure out an elegant way of doing so.[详细]
2023-02-01 20:20 分类:问答[IOS SDK]- touchesBegan with specific object?
When I touch anywhere on screen touchesBegan event triggered. but I couldn\'t manage how if I touch specific object as like UIImageView?[详细]
2023-01-31 16:48 分类:问答