A clean, high-performance dropdown for selecting multiple options at once. It shows a compact trigger with a live selected count, expands to a scrollable checklist, and supports search, chips, and rich customization—perfect for forms, filters, and settings across mobile and web.

Functionality

• Multi-select with checkbox list and selected count in the trigger

• Optional inline search/filter inside the panel

• “Select all” / “Clear all” with indeterminate state

• Chips/badges summary (collapse to “+N more” when long)

• Grouped sections, dividers, and sticky group headers

• Max/min selection limits with validation messages

• Disabled options and read-only mode

• Custom item builder: icons/avatars, secondary text, hints

• Async data source (e.g., API/DB) + loading/empty states

• Virtualized list for large datasets (smooth scrolling)

• Keyboard + screen-reader accessibility; focus management

• Close on outside tap/esc; keep-open for rapid multi picks

• Theming: colors, radius, elevation, spacing, typography

• RTL & localization-ready labels and placeholders

• Form integration: initial value, onChange/onValidate, error text

• State persistence (remember last selections) and reset programmatically

Use cases

• Product/category filters in e-commerce

• Profile interests, skills, or languages selection

• Notification/permission toggles (choose channels)

• Role/tag assignment in admin dashboards & CMS

• Audience segmentation for campaigns

• Multi-label selection in project/task managers

• Data query builders (include/exclude fields)

• Survey forms with multi-choice questions

• Location/brand/feature filters in search UIs

• Content pickers (authors, topics, hashtags)

Keywords
multi select dropdown, checkbox list, selected count, select all, clear all, chips summary, tags, search filter, grouped options, disabled items, max selection limit, validation message, async options, API data, loading state, empty state, virtualization, accessibility, keyboard navigation, screen reader, RTL support, localization, form field, Flutter widget, FlutterFlow component, e-commerce filter, settings picker, admin dashboard, project management, survey field, query builder, responsive UI, mobile web, theming, custom item builder, state persistence, smooth scrolling.