Hello! Thank you for your response! I'll take a look at them! Honestly, I should've been more clear about what I wanted to make. I just wanted to make some simple apps, not being released on the App Store, using Objective-C and UIKit, but using modern versions of iOS such as iOS 15+. This will definitely help me on understanding ARC and memory management! Thank you!

My tip percentage slider is a Segmented Control, with options ranging from 0% to 20% and then 'Any' is the custom value. When the user selects the 'Any' value, I want to be able to have a TextField appear below it, and then disappear when the user selects a value other than 'Any'. if (isTipPercentageCustom) { // Show the Text Field // Perform calculation, etc. } else { // Hide Text Field } I want to create it once, and then just keep showing and hiding it since I have to keep it in memory until the app closes. Is this even possible with a Segmented Control? Does that clarify it a little bit?