Objective C integer array

Question

I have an array called binaryArray.

Initalised with NSMutableArray *binaryArray = [[NSMutableArray alloc] init];

I add 0's or 1's into the array using [binaryArray addObject:[NSNumber numberWithInt:1]];

I then reference this array in a tableView with

id resultBinary = [binaryArray objectAtIndex:indexPath.item];

    if (resultBinary == 0) {
        ...
    } else {
        ...
    }

However, even if resultBinary is 0, it never hits

score 1 · Answer 1 · answered Jan 05 '18 at 16:23

1

try this

if ([resultBinary integerValue] == 0) {
    ...
} else {
    ...
}

answered Jan 05 '18 at 16:23

Shehata Gamal

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score 0 · Accepted Answer · edited Jan 06 '18 at 01:10

As NSNumber is a class that helps to store numeric types as object. So when comparing with 1, it is actually comparing with numeric type not with NSNumber.

So changing it to NSNumber literals works.

id resultBinary = [binaryArray objectAtIndex:indexPath.item];

    if ([resultBinary isEqual:@0]) {
        [cell.starImage setImage:[UIImage imageNamed:@"Results_star_empty"]];
    } else {
        [cell.starImage setImage:[UIImage imageNamed:@"Results_star_filled"]];
    }

Objective-C Literals

Objective C integer array

2 Answers2