how to sort array of NSDictionary

Question

i have array of NSDictionary like below

array(
        {
        Birthdate = "03/20";
        Names = "Abhinavswati Chaudhary";
        remain = 0;
    },
        {
        Birthdate = "09/22/1986";
        Names = "Aisa Soni";
        remain = 186;
    },
        {
        Birthdate = "03/02/1990";
        Names = "Anuj Parekh";
        remain = 347;
    },
        {
        Birthdate = "05/22/1988";
        Names = "Ajay Desai";
        remain = 63;
    }
)

how can i sort this array in ascending with accordance to remain for example it should be like

 array(
       {
       birthdate=...
       name =abhivan
       remanin =0;
   },
      {
       brithdate = "05/22/1988";
       name =ajay
       remain =63
   },
      {
       and so on....

plz suggest some code thank you in advance

when we use NSsortDiscripor then remain need to be NSNumber, can it be the reason that my remain numbers are actually string ?

array order get changed but not in ascending its just changed randomly — user2189388, Mar 20 '13 at 11:14
can it be the reason behind my problem that in remain that numbers are NSString and not NSNUmber cus of that it may not be able to sort it ? — user2189388, Mar 20 '13 at 11:19

score 2 · Accepted Answer · answered Mar 20 '13 at 10:56

2

This is quite simple by using the sortedArrayUsingComparator method of NSArray.
In your case it should look like:

yourArray = [yourArray sortedArrayUsingComparator:^NSComparisonResult(NSDictionary *obj1, NSDictionary *obj2) {
    // get values
    NSNumber *remain1 = obj1[@"remain"];
    NSNumber *remain2 = obj2[@"remain"];

    return [remain1 compare:remain2];
}];

answered Mar 20 '13 at 10:56

yinkou

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my array contain Dic so will it change all combined element of dic or it will change only remain? – user2189388 Mar 20 '13 at 11:06
it will change the dicts, sorted by "remain" – yinkou Mar 20 '13 at 12:18

how to sort array of NSDictionary

1 Answers1