For some reason this sample code works: NSArray *immutable = @[ @"a", @"b", @"c" ]; NSMutableArray *mutable = (__bridge id)CFPropertyListCreateDeepCopy(kCFAllocatorDefault, (__bridge CFArrayRef)im...

I want to copy a NSMUtableDictionary values into the another NSMutableDictioary. How can i do that? Here my code is, PersonClass.h file: NSMutableDictionary *tempDictionary; @property (nonato...

So I'm storing block actions into a nsmutabledictionary and then recalling them when a response comes back on a websocket. This turns async request into a block syntax. Here's the stripped down cod...

HI, I have a NSMutableDicitionary contains both lowercase and uppercase keys. So currently i don't know how to find the key in the dictionary irrespective key using objective c.

I have NSMutableDictionary *myDictionary = [[NSMutableDictionary alloc] init]; id dict = [myDictionary copy]; but is dict now just a regular NSDictionary? Or is it a copy of the NSMutableDiction...

I am using block based enumeration similar to the following code: [[[rows objectForKey:self.company.coaTypeCode] objectForKey:statementType] enumerateObjectsWithOptions:NSEnumerationConcurrent ...

I have a quick question regarding KVO. I understand that for a NSArray if observing additions is desired you can do the following. NSIndexSet* set = [NSIndexSet indexSetWithIndex:[someIndex inte...

I'm new to iPhone development and I have a question that may have a very simple answer. I am trying to add buttons to a view and these buttons are associated with a custom class that I defined. Whe...

I am trying to save a boolean database value into a map as follows - [recentTags setValue:[NSNumber numberWithBool:[aMessage isSet]] forKey:[aMessage tagName]]; It gives me an error saying "Inc...

I was trying to serialize a SearchEntity object(custom object) containing an NSMutableDictionary containing a set of type CategoryEntity(custom object). 1 SearchEntity<NSCoding> containing: ...

I am develop a iPhone application, in which i need to use JSON to receive data from server. In the iPhone side, I convert the data into NSMutableDictionary. However, there is a date type data are...

I would like to save the content of a NSMutableDictionary object to a file. How do I do this ? I already know how to do this task with a NSDictionary object but I don't know how to convert/copy thi...

I'm having difficulty to add a data structure to an array to create an array of dictionaries from a loop. I just knew that addObject in NSMutableArray only add pointer to it. I would like to know h...

please help me I want to sort NSMutableArray and yes I can do this by NSSortDescriptor *sortPoint = [[NSSortDescriptor alloc] initWithKey:@"point" ascending:YES]; [hightScore sortUsingDescriptors:...

How can I use an integer value as 'key' to set a float value in NSMutableDictionary ?

I am trying to implement a subclass of NSMutableDictionary that returns nil instead of throwing a NSUndefinedKeyException when the key is not present in the Dictionary. However when I try to add o...

I have a series of models for my application. Across all these models there are (will be) some 200 or 300 instance variables. The application stores its persistent data on a web-based server (MySQL...

I am developing an application in which I want to use an NSDictionary. Can anyone please send me a sample code explaining the procedure how to use an NSDictionary to store Data with a perfect examp...

OK, this is driving me nuts -- please tell me I'm not losing my mind! I declare: NSMutableDictionary* generalSettingsDict; im my .h I init: generalSettingsDict = [[NSMutableDictionary alloc] ...