Saving NSDictionary with NSMutableArray as a value to NSUserDefaults

Question

I am storing UIImage in NSMutableArray then storing NSMutableArray into NSDictionary. Key of NSDictionary is a foldername and value of NSDictionary is a NSMutableArray. Now how can i store and retrieve NSDictionary in NSUserDefaults.

I have done as follows:

NSMutableArray *imageArray=[[NSMutableArray alloc] init];
[imageArray addObject:selectedImage];


[allFolderWithImageDict setValue:imageArray forKey:@"UniqueFolderName"];

NSUserDefaults *defauktCenter = [NSUserDefaults standardUserDefaults];
[defauktCenter setValue:allFolderWithImageDict forKey:@"FolderImageDict"];
[defauktCenter synchronize];

But NSDictionary is not saving in NSUserDefaults.

Please suggest with some example

thanks

http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults — Anoop Vaidya, Apr 11 '13 at 13:55

Bhavin · Accepted Answer · 2013-04-29T13:39:04.177

2

To Store and Retrieve Values of Custom Objects, you can use NSKeyedArchiver and NSKeyedUnarchiver Classes :

// To Save. . .
NSData *resData = [NSKeyedArchiver archivedDataWithRootObject:allFolderWithImageDict];
[[NSUserDefaults standardUserDefaults] setObject:resData forKey:@"FolderImageDict"];

// To Load. . .
NSData *respData = [[NSUserDefaults standardUserDefaults] objectForKey:@"FolderImageDict"];
resultDictionary = [NSKeyedUnarchiver unarchiveObjectWithData:respData];
NSLog(@"dict :: %@",resultDictionary);

GoodLuck !!!

edited Apr 29 '13 at 13:39

answered Apr 11 '13 at 14:00

Bhavin

27,155
11
55
94

I got the answer from this link http://rajuandroid.blogspot.in/2013/05/how-to-store-custom-objects-in.html – meera May 01 '13 at 13:32

score 0 · Answer 2 · answered Apr 11 '13 at 16:06

To store UIImage objects in NSUserDefaults you need to a category implementation for UIImage that implements NSCoding protocol

here is one: https://code.google.com/p/iphonebits/source/browse/trunk/src/Categories/UIImage-NSCoding.h https://code.google.com/p/iphonebits/source/browse/trunk/src/Categories/UIImage-NSCoding.m

from http://iphonedevelopment.blogspot.it/2009/03/uiimage-and-nscoding.html

AKB · Answer 3 · 2013-04-12T09:55:26.083

0

Instead of using NSDictionary, use NSMutableDictionary.... :)

And to retrieve the data stored in dictionary.....

  NSUserDefaults *d = [NSUserDefaults standardUserDefaults];

  NSString *loadname1 = [d objectForKey:@"FolderImageDict"];

  NSLog(@"%@", loadname1);

edited Apr 12 '13 at 09:55

answered Apr 12 '13 at 09:45

AKB

132
13

Saving NSDictionary with NSMutableArray as a value to NSUserDefaults

3 Answers3