2014/10/15 下午 10:14:17

iphone Programming Glossary: somekey

http://stackoverflow.com/questions/11197509/ios-iphone-get-device-model-and-make

http://stackoverflow.com/questions/1659922/converting-a-nsobject-into-nsdata

classObject it should be NSData dataOnObject NSUserDefaults standardUserDefaults objectForKey @ someKey But that's just for reading data in that's already been saved. If you want to save an object as NSData then you have this.. this NSUserDefaults standardUserDefaults setObject NSKeyedArchiver archivedDataWithRootObject classObject forKey @ someKey But that's not all. Your classObject has to implement the NSCoding protocol and have the two methods encodeWithCoder and..

CoreData: “Dangling reference to an invalid object.” error

http://stackoverflow.com/questions/2003648/coredata-dangling-reference-to-an-invalid-object-error

dump #1 of someObject NSLocalizedDescription Operation could not be completed. Cocoa error 1550. NSValidationErrorKey someKey pointing to someObject #1 NSValidationErrorObject dump #2 of someOtherObject which points to the dump #1 object NSValidationErrorValue..

iphone+Difference between nil,NIL and null

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

cannot store nil values NSMutableDictionary dict NSMutableDictionary dictionary dict setObject nil forKey @ someKey On the other hand the following code is valid since NSNull null is a non nil object NSMutableDictionary dict NSMutableDictionary.. null is a non nil object NSMutableDictionary 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..

Reading a plist into core data - NSDictionary within NSDictionary

http://stackoverflow.com/questions/6738826/reading-a-plist-into-core-data-nsdictionary-within-nsdictionary

@ Plant inManagedObjectContext context plantMO setValue eachPlant valueForKey @ someValue forKey @ someKey ... repeat for all attributes plantMO setValue gardenManObj forKey @ gardent ... that will create the necessary Plant objects..

Using PLists for Persistence on iPhone

http://stackoverflow.com/questions/6885997/using-plists-for-persistence-on-iphone

plist share improve this question This is how I write data items to a plist myPlistFile setInteger myInt forKey @ someKey Of course you can change setInteger with setBool etc for different types. Hope this helps Edit If your .plist was a member..