macOS Stepper
A macOS Stepper has one button to add and one to subtract. It changes a value with set limits by a fixed step.
A real example
A layout inspector changes the grid from four columns to five. The user does not need to type a number.
Main parts
- 01Persistent label
- 02Input control
- 03Hint or format
- 04Validation message
Use it when
Use it for a number with clear limits and small steps. It works best when people change one or two steps at a time.
Do not use it when
Avoid wide or smooth ranges and large, fast changes. Add a number field when people must enter or compare exact values.
Name used in code
AppKit NSStepper / SwiftUI Stepper Before you ship
Check the supported macOS versions and AppKit or SwiftUI integration. Check standard focus and keyboard behavior. Also check VoiceOver, Full Keyboard Access, window resizing, and multi-window state. When needed, check restore, localization, and reduced motion.
Outcome: Apply or review macOS Stepper in a native macOS app without breaking platform rules. User context: A layout inspector changes the grid from four columns to five. The user does not need to type a number. macOS concept or control: macOS Stepper. Why it fits: Use it for a number with clear limits and small steps. It works best when people change one or two steps at a time. Do not use it when: Avoid wide or smooth ranges and large, fast changes. Add a number field when people must enter or compare exact values. Platform requirements: List the supported macOS versions. Say whether AppKit or SwiftUI owns each part and how they connect. Define window, menu, focus, keyboard, saved state, restore, and multi-window behavior. Platform accessibility and resilience: Use the right accessibility APIs. Check VoiceOver and Full Keyboard Access. Support localization, contrast, and reduced motion when needed. Keep user state after a relaunch. Acceptance criteria: Check the behavior on supported macOS versions with a keyboard and VoiceOver. Window resizing, focus, state restore, and AppKit or SwiftUI integration work in the normal macOS way. Evidence and limits (evidence boundary): It is official for that source. Other platforms or teams may use the term in another way. Unknowns to confirm: Supported macOS versions, AppKit or SwiftUI structure, and window model. Also confirm sandbox and entitlement limits, save rules, and the accessibility goal.
Check this request
Review the current use of macOS Stepper. Definition: A macOS Stepper has one button to add and one to subtract. It changes a value with set limits by a fixed step. Release checks: Check the supported macOS versions and AppKit or SwiftUI integration. Check standard focus and keyboard behavior. Also check VoiceOver, Full Keyboard Access, window resizing, and multi-window state. When needed, check restore, localization, and reduced motion. Before changing code, report the evidence you found, gaps, severity, and the smallest safe fix.