I have an array structure as follows:
NSMutableArray topArray{
NSMutableArray middleArray{
NSMutableArray lowerArray{
NSMutableDictionary dict{
}
}
}
}
The array structure is filled with some data that I retrieve from the web is JSON format.
I am trying to edit one of the objects in the NSMutableDictionary as follow:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSMutableArray *lowerArray = [[self middleArray] objectAtIndex:[indexPath section]];
NSMutableDictionary *dict = [lowerArray objectAtIndex:[indexPath row]];
[dict setObject:[NSNumber numberWithInt:1] forKey:@"key"];
[[self tableView] reloadData];
}
The data within each of the arrays is correct (I have checked with print statements), however, when I try to change the object in the dict I get the following error:
reason:
'-[__NSCFDictionary setObject:forKey:]: mutating method sent to
immutable object'
I need the object in the dictionary to be changed within the array structure.
Could this be an issue with the JSON data since when topArray is first initialised with the JSON data the middle and lower arrays are in the form of just NSArray's?
Sorry if this is confusing, I will try to clarify more if you have any questions.
Thanks in advance for your help.