Apple HIG guidance for status and progress UI components including progress indicators, status bars, and activity rings.
Check for .claude/apple-design-context.md before asking questions. Use existing context and only ask for information not already covered.
Show progress for operations longer than a second or two.
Determinate when duration/percentage is known. A filling progress bar gives users a clear sense of remaining work. Use for downloads, uploads, or any measurable process.
Indeterminate when duration is unknown. A spinner communicates work is happening without promising a timeframe. Use for unpredictable network requests.
Prefer progress bars over spinners. Determinate progress feels faster and more trustworthy.
Place indicators where content will appear. Inline progress near the content area, not modal or distant.
Don't stack multiple indicators. Aggregate simultaneous operations into one representation or show the most relevant.
Don't hide the status bar without good reason. Reserve hiding for immersive experiences (full-screen media, games, AR).
Match status bar style to your content. Light or dark for adequate contrast.
Respect safe areas. No interactive content behind the status bar.
Restore promptly when exiting immersive contexts.
Activity rings are for Move, Exercise, and Stand goals. Don't repurpose the ring metaphor for unrelated data.
Respect ring color conventions. Red (Move), green (Exercise), blue (Stand) are strongly associated with Apple Fitness.
Use HealthKit APIs for activity data rather than manual tracking.
Celebrate completions with animation and haptics when rings close.
| Reference | Topic | Key content |
|---|---|---|
| progress-indicators.md | Progress bars and spinners | Determinate, indeterminate, inline placement, duration |
| status-bars.md | iOS/iPadOS status bar | System info, visibility, style, safe areas |
| activity-rings.md | watchOS activity rings | Move/Exercise/Stand, HealthKit, fitness tracking, color |
Built by Raintree Technology · More developer tools
This skill is applicable to execute the workflow or actions described in the overview.