Question

I’m running into problems with a selector. I’m trying to dynamically name an array, winnerArray1, winnerArray2, winnerArray3, etc.

The variable someVariable is in a loop that increases so that will get incremented.

I get unrecognized selector sent to instance

int someVariable = 1;
NSArray  *winnerArray;
NSString *tempLoopString;


while(someVariable < 4){
        tempLoopString = [NSString stringWithFormat:@"winnerArray%d", someVariable];
        SEL selector = NSSelectorFromString(tempLoopString);
        winnerArray = [self performSelector:selector];  



        if ([winnerArray do_stuff]) {

            do stuff here
        }
  someVariable++

}

Answer 1

You can’t refer to a variable by name like that.

You should look into using key value coding. With that, you can interrogate a property of some object using the method valueForKey: