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\"
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
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.
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
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
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)
I thought that NSArray/NSDictionary/NSSet and their mutable subclasses just added the pointer to the object, and not the object it self.
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
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.
When I touch anywhere on screen touchesBegan event triggered. but I couldn\'t manage how if I touch specific object as like UIImageView?
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