macOS Slider
A macOS Slider has a track and a movable thumb. It chooses a value within set limits, either freely or in set steps, and may show tick marks.
A real example
A sound editor moves volume from silent to full. VoiceOver also announces the number.
Main parts
- 01Visible label
- 02Interaction target
- 03Current state
- 04Keyboard behavior
Use it when
Use it when dragging through a range and seeing the result at once helps. Support a smooth range or clear steps with ticks and keyboard keys.
Do not use it when
Do not use it for categories, unlimited ranges, or safety-critical precision. Add a matching number field when people must repeat an exact value.
Name used in code
AppKit NSSlider / SwiftUI Slider 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 Slider in a native macOS app without breaking platform rules. User context: A sound editor moves volume from silent to full. VoiceOver also announces the number. macOS concept or control: macOS Slider. Why it fits: Use it when dragging through a range and seeing the result at once helps. Support a smooth range or clear steps with ticks and keyboard keys. Do not use it when: Do not use it for categories, unlimited ranges, or safety-critical precision. Add a matching number field when people must repeat an exact value. 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 Slider. Definition: A macOS Slider has a track and a movable thumb. It chooses a value within set limits, either freely or in set steps, and may show tick marks. 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.