Question

I’m not sure if I worded the subject correctly. I am looping through an array, within each loop I am trying to instantiate a class, but I want to dynamically create the name. Like so:

int i = 0;

for(NSString* thisdatarow in filedata) { 
    i++;
    NSString* thisad = [NSString stringWithFormat:@"ad%d", i];
    NSLog(@"%@", thisad);
    AdData* thisad = [AdData new];  
}

In the example above I want AdData* thisad… to be named dynamically – “ad1”, “ad2”, “ad3″…and so on. I get a conflicting type error.

This code also generated an error:

int i = 0;
for(NSString* thisdatarow in filedata) { 
    i++;
    AdData* [NSString stringWithFormat:@"ad%d", i] = [AdData new];
}

Is there a way to do this?

Answer 1

You can’t do that in Objective-C.

Use a NSString to AdData map–it’ll do basically the same thing!

**edit: To clarify, use an:

NSMutableDictionary *dict;

with keys that are NSString* objects containing the ad names, and values that are the AdData* objects.

i.e.

[dict setValue:ad1 forKey:@"ad1"];

to set the values, and

[dict valueForKey:@"ad1"];

to get the values. (ignore the obvious memory leaks there with the strings…)