CODEWITHSUNDEEP
iosinsertnsmutablearray
Nishant
Nishant

Reputation: 51

IOS nsmutable array index no 2 insert one more value or dictionary with old value

i have one mutable array with some value , In this array i have add one dictionary on index no 3 with old value , i mean to say i have add one more value on index no 3 Here is my data **This is my mutable array **

(        {
        Amount = 40;
        DisplayMessage = "Select at least 1 item and a maximum of 1";
        DisplayOrder = 1;
        IsMandatory = 1;
        IsQtyEditable = 0;

    },
        {
        Amount = 30;
        DisplayMessage = "Select at least 1 item and a maximum of 1";
        DisplayOrder = 1;
        IsMandatory = 1;
        IsQtyEditable = 0;

    },
        {
        Amount = 10;
        DisplayMessage = "Select at least 1 item and a maximum of 1";
        DisplayOrder = 1;
        IsMandatory = 1;
        IsQtyEditable = 0;

    }
)

on index no 3 i have add dictionary mytxt = 1; Like this (in last line i have add mytxt = 1; on index no 3 )

{
            Amount = 10;
            DisplayMessage = "Select at least 1 item and a maximum of 1";
            DisplayOrder = 1;
            IsMandatory = 1;
            IsQtyEditable = 0;
            mytxt = 1;
        }

Here is my code i try this but is return a error 

for (int i =0; i< ArrayGetParent.count; i++) {

                        if(i == 3 )
                        {
                            NSMutableDictionary *dictArray=[[NSMutableDictionary alloc]init];
                            [dictArray setValue:@"1" forKey:@"mytxt"];
                            NSLog(@"%@",dictArray);
                            [nishantArray insertObject:dictArray atIndex:i];
                        }
                    }

this is my error Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[__NSCFArray insertObject:atIndex:]: mutating method sent to immutable object'

Please help me . please share your valuable knowledge .

Upvotes: 0

Views: 460

Answers (2)

Kirit Modi
Kirit Modi

Reputation: 23407

Define array as : 

NSMutableArray *ArrayGetParent = [[NSMutableArray alloc]init];

NOTE : You have only three object according to array and in your for loop you take i = 3 it is not possible.

Solution :

for (int i =0; i< ArrayGetParent.count; i++) {

        if(i == 2)
        {
            [[ArrayGetParent objectAtIndex:i] setObject:@"1" forKey:@"mytxt"];

        }
    }

Adding data only last dictionary OUTPUT

enter image description here

Upvotes: 0

gvuksic
gvuksic

Reputation: 3013

nishantArray is not mutable, check where you define it and change it

Upvotes: 0

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