Notification Center Screen
Component Detail
Description
Full-screen list of all received notifications sorted by recency, with read/unread visual differentiation and swipe-to-dismiss. Supports VoiceOver and TalkBack with semantic labels on each notification item and sufficient contrast ratios meeting WCAG 2.2 AA.
notification-center-screen
Summaries
The Notification Center Screen is the primary touchpoint for keeping coordinators, mentors, and administrators informed about program activity without requiring constant manual check-ins. A well-designed notification hub directly reduces missed assignments, late responses, and communication gaps — each of which carries real costs in mentor-mentee relationship quality and program outcomes. The screen's WCAG 2.2 AA accessibility compliance also ensures the platform is usable by participants with visual impairments, expanding the addressable user base and supporting institutional diversity and inclusion commitments. Swipe-to-dismiss and mark-all-read controls reduce notification fatigue, keeping users engaged rather than overwhelmed.
Notification Center Screen is medium complexity with two hard dependencies: notification-list-item-widget and notification-repository. Both must be available before UI integration can begin — schedule these in a preceding sprint. The paginated list implementation requires agreement on page size, scroll behavior, and load-more triggering strategy before development starts; document this in the feature spec to avoid mid-sprint scope debates. Accessibility requirements (VoiceOver, TalkBack, WCAG 2.2 AA contrast) add meaningful QA surface area — budget dedicated accessibility testing time, ideally with screen reader devices or emulators.
Swipe-to-dismiss gesture handling on both iOS and Android platforms introduces platform-specific testing requirements. Plan for a dedicated regression pass on both platforms before release.
NotificationCenterScreen is a StatefulWidget (or BLoC-connected ConsumerWidget) rendering a paginated ListView of notification items sourced from NotificationRepository. Pagination uses a scroll controller with a threshold listener to call loadNextPage() when approaching the list end — store page cursor in local state or a dedicated BLoC. Read/unread differentiation should be driven by a boolean field on the Notification model, with distinct visual styling applied in NotificationListItemWidget. Swipe-to-dismiss uses Flutter's Dismissible widget wrapping each list item, with dismissNotification(notificationId) called on confirm.
Accessibility: wrap each item in Semantics with a descriptive label combining notification type, sender, and read state. Ensure color contrast meets WCAG 2.2 AA for both read and unread states in both light and dark themes. markAllAsRead() should optimistically update UI state before awaiting repository confirmation.
Responsibilities
- Display paginated notification history with read/unread state
- Provide swipe-to-dismiss and mark-all-read actions
- Announce new notifications accessibly via screen reader semantics
Interfaces
build()
markAsRead(notificationId)
markAllAsRead()
dismissNotification(notificationId)
loadNextPage()
onNotificationTap(notification)
Relationships
Dependencies (2)
Components this component depends on