push-notifications

Implement, review, and debug local and remote notifications on iOS/macOS using UserNotifications and APNs. Covers permission flow, token registration, payload structure, foreground handling, notification actions, grouping, and rich notifications. Targets iOS 26+ with Swift 6.2, backward-compatible to iOS 16 unless noted.

Request notification authorization before doing anything else. The system prompt appears only once; subsequent calls return the stored decision.

Always check status before assuming permissions. The user can change settings at any time.

在 iOS/macOS 应用程序中实施、审查或调试推送通知 - 本地通知、远程 (APN) 通知、丰富通知、通知操作、静默推送和通知服务/内容扩展。在使用 UNUserNotificationCenter、注册远程通知、处理通知负载、设置通知类别和操作、创建丰富的通知内容或调试通知传递时使用。触发 Swift 应用程序中涉及警报、徽章、声音、后台推送或用户通知权限的任何任务。 来源：dpearson2699/swift-ios-skills。