Level Indicator
A Level Indicator shows where a value sits in a known range. It may use bars, capacity, rating, or relevance marks. Most are read-only, but a rating style may take input.
Another example
A password field updates a five-part strength indicator. The indicator does not look draggable.
Main parts
- 01State signal
- 02Human-readable message
- 03Timing or progress
- 04Recovery path
Use it when
Use it for a value with a clear, useful range. Show status with a read-only capacity or relevance style. Use an editable rating style only when people give a rating.
Do not use it when
Do not make a capacity or relevance indicator act like a slider. Do not use it for an unlimited measure. Use charts for exact history comparisons.
Name used in code
AppKit NSLevelIndicator / SwiftUI Gauge 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 Level Indicator in a native macOS app without breaking platform rules. User context: A password field updates a five-part strength indicator. The indicator does not look draggable. macOS concept or control: Level Indicator. Why it fits: Use it for a value with a clear, useful range. Show status with a read-only capacity or relevance style. Use an editable rating style only when people give a rating. Do not use it when: Do not make a capacity or relevance indicator act like a slider. Do not use it for an unlimited measure. Use charts for exact history comparisons. 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 Level Indicator. Definition: A Level Indicator shows where a value sits in a known range. It may use bars, capacity, rating, or relevance marks. Most are read-only, but a rating style may take input. 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.