CODEWITHSUNDEEP
iosobjective-cuitableview
Tajuddin
Tajuddin

Reputation: 73

NSDictionary to NSMutableArray

Here is my API response -

{"kitchen":"3","bath":"5","lanundry":"0","dining":"0","bedroom":"0"}

I have loaded this in NSDictionary and I can retrieve the value using key like -

NSDictionary *pdata = [NSJSONSerialization JSONObjectWithData: data options:NSJSONReadingMutableContainers error:nil];    
[pdata objectForKey:@"dining"]

I want add the dictionary object into NSMutableArray but it overrides the all the array values with the last one even though it adds five records.

itemsA=[[NSMutableArray alloc] init];


imgCount *img=[[imgCount alloc] init];

 if([pdata objectForKey:@"kitchen"])
    {

       [img setCount:[pdata objectForKey:@"kitchen"]];
       [img setDesc:@"Kitchen"];

       [itemsA addObject:img];
    }
 if([pdata objectForKey:@"bath"])
    {
       [img setCount:[pdata objectForKey:@"bath"]];
       [img setDesc:@"Bathroom"];
       [itemsA addObject:img];
     }
 if([pdata objectForKey:@"lanundry"])
     {
        [img setCount:[pdata objectForKey:@"lanundry"]];
        [img setDesc:@"Laundry"];
        [itemsA addObject:img];
      }
 if([pdata objectForKey:@"dining"])
      {
         [img setCount:[pdata objectForKey:@"kitchen"]];
         [img setDesc:@"Kitchen"];
         [itemsA addObject:img];
       }
  if([pdata objectForKey:@"bedroom"])
      {
        [img setCount:[pdata objectForKey:@"bedroom"]];
        [img setDesc:@"Bedroom"];
        [itemsA addObject:img];
      }

My table view shows 5 rows with the last value -

Bedroom (0)

But i want result like this

{"desc":"bathroom","count":"0"}, {"desc":"dining","count":"3"}

Upvotes: 0

Views: 2110

Answers (3)

Nirav D
Nirav D

Reputation: 72410

For that you can try like this. First get all keys of dictionary then use that keys array to create array of dictionary. 

NSArray*keys=[dict allKeys];
NSMutableArray *array = [[NSMutableArray alloc] init];
for (NSString *key in keys) {
    NSDictionary *dic = @{ @"desc":key, @"count": [dict objectForKey:key] };
    [array addObject:dic];
}
NSLog(@"Array - %@",array);

Edit: If you want custom class object you can try like this.

 for (NSString *key in keys) {
    imgCount *imgObject=[[imgCount alloc] init];
    [imgObject setCount:[pdata objectForKey:key]];
    [imgObject setDesc:[key capitalizedString]];        
    [array addObject:imgObject];
}

Upvotes: 8

Arun
Arun

Reputation: 1411

The problem with your code is you are creating only one img object and re-using it. Since all objects are accessed by reference in Objective-C, you need to create separate img objects in all if conditions. Try this

itemsA=[[NSMutableArray alloc] init];

 if([pdata objectForKey:@"kitchen"])
    {
       imgCount *img=[[imgCount alloc] init];
       [img setCount:[pdata objectForKey:@"kitchen"]];
       [img setDesc:@"Kitchen"];

       [itemsA addObject:img];
    }
 if([pdata objectForKey:@"bath"])
    {
       imgCount *img=[[imgCount alloc] init];
       [img setCount:[pdata objectForKey:@"bath"]];
       [img setDesc:@"Bathroom"];
       [itemsA addObject:img];
     }
 if([pdata objectForKey:@"lanundry"])
     {
        imgCount *img=[[imgCount alloc] init];
        [img setCount:[pdata objectForKey:@"lanundry"]];
        [img setDesc:@"Laundry"];
        [itemsA addObject:img];
      }
 if([pdata objectForKey:@"dining"])
      {
         imgCount *img=[[imgCount alloc] init];
         [img setCount:[pdata objectForKey:@"kitchen"]];
         [img setDesc:@"Kitchen"];
         [itemsA addObject:img];
       }
  if([pdata objectForKey:@"bedroom"])
      {
        imgCount *img=[[imgCount alloc] init];
        [img setCount:[pdata objectForKey:@"bedroom"]];
        [img setDesc:@"Bedroom"];
        [itemsA addObject:img];
      }

Upvotes: 2

Himanshu
Himanshu

Reputation: 2832

Try this, to get all your dictionary keys into NSMutable Array.

NSArray*keys=[dict allKeys];
NSMutableArray *mutableArray = [keys mutableCopy];

Upvotes: 0

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