Question

I am creating a grid of CALayers, is there a way I can set a tag or something so that I can identify it if I need to?

I can probably just make a data model with an NSArray to keep track, but it would be easier for my implementation if I could just store it in the layer.

Answer 1

CALayer is a KVC compliant class, so you can set a value for any key.

For example:

[myLayer setValue: @"A TAG" forKey: @"someKey"];

You can then retrieve the value using:

value = [myLayer valueForKey: @"someKey"];

See the Apple docs for more details.