iOS Pre-Fabricated Function Sheet

Does anyone on here know of a resource page that has functions for picker view to drop down all 50 states, and also one for the the counties in each state. So if someone selects CA on the first picker the subsequent picker will show all counties in CA, for example.

This will not be a default picker view functionality. You will need to implement this manually and connect data (most likely downloaded from the internet as JSON) to your project.

Here’s a tutorial on the picker view.

I answered this on your Facebook post as well.

I’d suggest first figuring out how to put an array into your picker to understand how they work and then later figure out how to use data from JSON.
Any kind of object from the library you can ALWAYS find all the docs about it on Apple. Or command click on the object in your code and show the docs