how to add dictionary data in to an array?

Question

i have made an array and a dictionary. now i want to put the values of dictionary in to array.. i am very new to objective C so kindly help. "viewcontroller .m"

#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController

- (void)viewDidLoad
{
[super viewDidLoad];

marray = [[NSMutableArray alloc]initWithObjects:@"1",@"2",@"3",@"4", nil];
marray = [[NSMutableArray alloc]initWithObjects:@"6",@"7",@"8",@"9",@"10", nil];
[self displayarray];
[marray release];
mDictionary = [[NSMutableDictionary alloc]init];
[mDictionary setValue:@"sdfsdhfg" forKey:@"firstname"];
[mDictionary setValue:@"kvxv" forKey:@"lastname"];
[self displaydict];
[mDictionary release];
}
-(void)displaydict{
CFShow(mDictionary);
}
-(void)displayarray{
for (int i = 0; i<[marray count]; i++) {
    NSLog(@"the array data present at %d index is %@",i,[marray objectAtIndex:i]);
}
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}


@end

Anoop Vaidya · Accepted Answer · 2013-01-24 13:33:50Z

9

Your question contains so many other questions, I will try to solve few of them related to converting dictionary to array.

Store all keys
```
NSArray *dictKeys=[dict allKeys];
```
Store all values
```
NSArray *dictValues=[dict allValues];
```

If you want to store both keys and values:

NSArray *keysAndValues=[dictKeys arrayByAddingObjectsFromArray:dictValues];

EDIT:

As you require NSMutableArray, you can use :

NSMutableArray *dictAllKeys=[NSMutableArray arrayWithArray:[dict allKeys]];
NSMutableArray *dictAllValues=[NSMutableArray arrayWithArray:[dict allValues]];
NSMutableArray *keysAndValues=[NSMutableArray arrayWithArray:[dictAllKeys arrayByAddingObjectsFromArray:dictAllValues]];

edited Jan 24, 2013 at 13:33

answered Jan 24, 2013 at 6:59

Anoop Vaidya

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2 Comments

Newbee Over a year ago

but if i am taking NSMutableArray instead of NSArray its not working.. can u elaborate a little bit. thank you.

Anoop Vaidya Over a year ago

No a big issue... whatever method NSArray contains are inherited by NSMutableArray.... in few cases you need to adjust a bit... I am updating my answer in few secs

Jesus Ramos · Accepted Answer · 2013-01-24 07:16:32Z

3

for (NSDictionary *dictionary in arrayname)
{
    NSMutableArray *array = [dictionary objectForKey:@"writeKey"];
}

This might help you

edited Jan 24, 2013 at 7:16

Jesus Ramos

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answered Jan 24, 2013 at 6:57

iAppDeveloper

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Comments

Satheesh Kannan · Accepted Answer · 2013-01-24 06:56:10Z

0

If you want to access the values of Dictionary, use particular key for values. For that use the following format.

NSArray *yourarray=[YourDictionary ObjectForKey:@"KEY"];

I hope this will help you.

answered Jan 24, 2013 at 6:56

Satheesh Kannan

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2 Comments

Anoop Vaidya Over a year ago

O of objectForKey should be small, and there will be only one object for a given key, it must be an array to store in yourArray.

Satheesh Kannan Over a year ago

the "ObjectForKey" will return any Object that may be array or one object, that's not a problem. If you want another solution, why don't you gor for "ObjectAtIndex" in Dictionary.

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