nsmutabledictionary Questions

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I have a question on thread safety while using NSMutableDictionary. The main thread is reading data from NSMutableDictionary where: key is NSString value is UIImage An asynchronous thread is w...
Baumgardner asked 31/12, 2009 at 19:16

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I am trying to create and assign a Swift Dictionary of type [String : String] at the SKSpriteNode property userData which requires an NSMutableDictionary. When I try this I get the error: '[String...
Halie asked 20/5, 2015 at 15:35

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I have a NSMutableDictionary. NSMutableDictionary * dict = @{ @"0" : @"car", @"1" : @"ball", @"2" : @"plane", } At one point, by error, I was assigning a nil to to an element on a dictionary....
Ignatia asked 20/9, 2015 at 12:28

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I had a problem in my project where I declared in the header file an NSMutableDictionary property like so: @property (copy, nonatomic) NSMutableDictionary *DataDict ; Now in the implementation f...
Ragin asked 19/10, 2012 at 20:55

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I have an existing NSDictionary that has: { "charts_count" = 2; "created_at" = "2010-04-12T16:37:32Z"; exchange = NASDAQ; "followers_count" = 259; id = 8404; industry = "<null>"; "mes...

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Is it possible to observe (subscribe to) changes to values stored under different keys in an NSMutableDictionary? In my case the keys would already exist when the subscription is initiated, but the...
Bambara asked 9/7, 2009 at 22:54

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I have An Array With Dictionaries example : ( { Email = "[email protected]"; Name = "Kate Bell"; Number = "(555) 564-8583"; }, { Email = "[email protected]"; Name = "Daniel Higgi...

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Question: Is there a way to use existing objective-c methods to do a full deep copy of a NSDictionary or NSArray, that themselves have nested dictionaries or arrays within them? That is I have re...
Illuviation asked 28/3, 2011 at 0:20

6

I am trying to add "dateTime" to My dictionary as defined follows: Symptom Ranking: { 5111ef19253b4a9150000000 = 1; 5111f029253b4add4e000000 = 1; 5111f036253b4a123d000001 = 1; 5111f045253b4a40...
Synergistic asked 6/2, 2013 at 14:22

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There is a literal syntax to add object and change object in an NSMutableDictionary, is there a literal syntax to remove object?
Horvath asked 26/2, 2014 at 20:30

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I have an array which contains dictionaries in it; so how can I sort the array according to dictionary key values?
Fold asked 28/1, 2011 at 3:28

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I have an NSMutableDictionary that maps NSString to NSString (although the values are NSStrings, they are really just integers). For example consider the following mappings, "dog" --> "4" "cat...
Kellam asked 29/12, 2010 at 23:2

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I have created NSMutableDictionary and the values of keys are formed as nsarray. I have removed objects of keys. I have no doubt for this case. But I would like to remove key When value of that key...
Demobilize asked 29/1, 2013 at 7:6

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When looking at the documentation, I hardly see any big difference. Both "value" and "object" are of type id, so can be any object. Key is once a string, and in the other case an id. One of them se...
Rubstone asked 8/8, 2009 at 18:57

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How do I loop through all objects in a NSMutableDictionary regardless of the keys?
Alible asked 12/10, 2010 at 11:55

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Is there a more efficient way to add objects to an NSMutable Dictionary than simple iteration? Example: // Create the dictionary NSMutableDictionary *myMutableDictionary = [NSMutableDictionary d...
Slang asked 12/7, 2009 at 22:45

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The following code is returning an exception with the following error message "mutating method sent to immutable object" when attempting to removeObjectForKey NSMutableDictionary * storedIpDiction...
Maryrosemarys asked 4/8, 2014 at 19:30

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I would like to use a method (writeToFile) only available for NSDictionary to a NSMutableDictionary object. So, how do I convert this NSMutableDictionary object to NSDictionary?
Smokejumper asked 19/9, 2011 at 23:59

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Code is working, but how do I silent this warning that keeps on appearing every time? let parentView = self.parentViewController as! SBProfileViewController parentView.savedDetailsModel = SBSavedU...
Huggins asked 6/2, 2016 at 19:11

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I'm maintaining a NSMutableDictionary which holds key and value pair.Now i need to perform some operation for each value in it.How to retrive value from dictionary. // this is NSMutableDIctionary ...
Impenetrability asked 18/2, 2010 at 3:55

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All objects used as keys in NS(Mutable)Dictionaries must support the NSCopying protocol, and those objects are copied when they're used in the dictionary. I frequently want to use heavier weight o...
Gavelkind asked 6/3, 2010 at 21:0

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i have created NSMutableDictionary with 10 keys.Now i want to access NSMutableDictionary keys in a same order as it was added to NSMutableDictionary (using SetValue:* forKey:* ); How can i achieve...
Frydman asked 2/8, 2010 at 10:36

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I have a NSMutableDictionary with string keys and every key has its own array. I want to re-sort the dictionary with keys value alphabetically. How can I do this?
Tomaso asked 14/11, 2011 at 8:23

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I know I can create an NSArray with @[@"foo", @"bar"] or an NSDictionary with @{@0 : @"foo", @1 : @"bar"}. Is there a literal syntax for creating an NSMutableArray or an NSMutableDictionary?

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Please tell me how can we have multiple values for the same key in NSMutableDictionary? When I use the below approach, the values are being replaced with the recent one. In my case: [dictionary ...
Havoc asked 9/8, 2010 at 6:53

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