Swift version: 5.0
UIStepper is one of those controls that doesn’t get used often, which is a shame – it’s trivial to add, and helps users select a value more accurately than a
Here’s some code to help you try it out:
let stepper = UIStepper() stepper.minimumValue = 0 stepper.maximumValue = 10 stepper.value = 5
That tells iOS to let the stepper move from 0 to 10 (inclusive), starting at 0. By default the
autorepeat property of steppers is set to true, which means the user can press and hold to increment values rather than tapping repeatedly.
Next, add some code to position your stepper where you want it. This places it at the top of the safe area, aligned to the center:
stepper.translatesAutoresizingMaskIntoConstraints = false view.addSubview(stepper) stepper.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor).isActive = true stepper.centerXAnchor.constraint(equalTo: view.safeAreaLayoutGuide.centerXAnchor).isActive = true
Finally, connect an
@objc method to the
valueChanged event like this:
stepper.addTarget(self, action: #selector(stepperChanged), for: .valueChanged)
SPONSOR Meet the new Instabug – more than just bug reporting! We help you build better apps and minimize your debugging time. With each bug report, we automatically capture details like network requests, repro steps, and session details. Get real-time crash reports with stack trace details and session data to help you catch and fix issues easily. And with our customizable in-app surveys, you’ll gather insightful user feedback and much more. Instabug is the fastest and easiest way to release with confidence. Start your free trial now! Start your free trial now!
Available from iOS 5.0
Did this solution work for you? Please pass it on!
Other people are reading…
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.