prism_toast

Beautiful adaptive toast notifications for Flutter — bottom-centered on mobile, stacked top-right cards on desktop and web. Icon-led variants, Material 3 colors, smooth slide+fade animations, and zero dependencies.

Part of the Prism package family.

Features

✅ Adaptive placement — bottom-centered near-full-width on phones (< 600px), stacked top-right cards on desktop/web — the pattern each platform expects
✅ Four variants with icons: success ✓, error, warning, info — themed with Material 3 container colors
✅ Smooth slide + fade animations in and out
✅ Auto-dismiss with configurable duration, or dismiss early
✅ Optional action button (e.g. "Undo")
✅ Multiple toasts stack gracefully instead of overlapping
✅ Shorthands: PrismToast.success(...), .error(...), .warning(...), .info(...)
✅ Pure Flutter, all six platforms, no dependencies

Installation

dependencies:
  prism_toast: ^0.1.0

Quick start

PrismToast.success(context, 'Settings saved.');
PrismToast.error(context, 'Upload failed. Please retry.');

Full control

PrismToast.show(
  context,
  const PrismToastMessage(
    title: 'Sync complete',
    message: '142 items updated across 3 devices.',
    type: PrismToastType.success,
    duration: Duration(seconds: 4),
    actionLabel: 'View changes',
    onAction: () => openChangelog(),
  ),
);

How it adapts

Window	Behavior
Compact (< 600px)	Slides up from the bottom edge, nearly full width
Medium+	Slides in from the right, stacked top-right cards (380px)

The Prism package family

Package	What it does
prism_markdown	Markdown widget with full CommonMark + GFM support
prism_code_view	Syntax-highlighted code viewer (Dart/JSON/YAML built in)
prism_adaptive_scaffold	Responsive scaffolds: bottom bar → rail → extended rail
prism_adaptive_dialog	Dialogs that become bottom sheets on phones
prism_state_views	Empty, loading, error, and success states from one widget
prism_master_detail	Adaptive master-detail layouts
prism_banner	Dismissible announcement banners
prism_search	Adaptive search with suggestions
prism_toast	Adaptive toast notifications

All pure Flutter, all six platforms, MIT licensed, built to work together.

License

MIT — see LICENSE.