Collapsible

Controlled/uncontrolled single-region disclosure with content mounted only while open.

Distribution status

BeeUI 0.86.2-rc.3 is public on npm under the opt-in next dist-tag (observed 2026-09-25T06:25:18.371Z). latest currently resolves to 0.86.2-rc.3 and lags next until the owner moves it for all four packages. See Start for the full install commands. The import shape below works against the published package; the repository-local Registry command remains available as a no-registry-required alternative from a BeeUI checkout. Pin @0.86.2-rc.3 instead of @next for an immutable version in CI.

Identity

• Category: Navigation & disclosure
• Status: stable public Registry/export-map component family
• Targets: iOS · Android · Web, subject to the compatibility contract
• Prerequisites: @beemvp/beeui-ui installed (or this component’s source copied via the Registry CLI below) and, on Web, the BeeUI Tailwind/Uniwind theme CSS loaded — see Start for full platform setup.
• Source: packages/ui/src/components/collapsible.tsx

Import

import { Collapsible, CollapsibleContent, CollapsibleTrigger } from '@beemvp/beeui-ui';

There is no documented deep/private source import. For source ownership from a BeeUI checkout:

pnpm beeui add collapsible

Registry (used throughout this page) is BeeUI’s source-ownership manifest — registry/registry.json — that the pnpm beeui/@beemvp/beeui-cli CLI reads to copy a component’s real source into your app and rewrite its internal imports; it is not an npm package index. This component’s own Registry entry: registry/registry.json.

Composition and public API

• Family exports: Collapsible CollapsibleContent CollapsibleTrigger
  • Also routed here, outside the Registry family:
    • collapsible
  • Package export subpath: @beemvp/beeui-ui/collapsible

Exported types: CollapsibleContentProps, CollapsibleProps, CollapsibleTriggerProps

The generated API inventory is mechanically joined to packages/ui/src/index.ts, Registry metadata, and the component reference contract. Each type’s field table below is parsed directly from that source, not a second hand-maintained copy; for the fuller behavior narrative see the canonical component behavior catalog.

State and behavior contract

Controlled (open/onOpenChange) or uncontrolled (defaultOpen) single-region disclosure; CollapsibleContent mounts only while open, so its children never render (or run effects) while collapsed.

Props

CollapsibleContentProps

Prop	Type	Default	Description
className	string	—	Extra utility classes, merged after the component’s own via cn(...), so they win on conflict. An escape hatch for source-owned and application work, not a cross-engine portability guarantee.

Also carries every prop of Omit<ViewProps, 'role'> — that upstream contract is not reproduced here.

CollapsibleProps

Prop	Type	Default	Description
children	React.ReactNode	—	Content rendered inside this element. The family’s composition section states which children it expects.
className	string	—	Extra utility classes, merged after the component’s own via cn(...), so they win on conflict. An escape hatch for source-owned and application work, not a cross-engine portability guarantee.
defaultOpen	boolean	false	Initial open state for uncontrolled usage. Defaults to false.
disabled	boolean	false	Blocks the trigger from toggling open state, even a per-trigger disabled={false} override. Defaults to false.
onOpenChange	(open: boolean) => void	—	Called with the next open state whenever CollapsibleTrigger is pressed while not disabled.
open	boolean	—	Whether the content is shown. Passing this switches the collapsible to controlled mode.

Also carries every prop of Omit<ViewProps, 'children'> — that upstream contract is not reproduced here.

CollapsibleTriggerProps

Prop	Type	Default	Description
children	React.ReactNode	—	Content rendered inside this element. The family’s composition section states which children it expects.
className	string	—	Extra utility classes, merged after the component’s own via cn(...), so they win on conflict. An escape hatch for source-owned and application work, not a cross-engine portability guarantee.
disabled	boolean	false	Disables this trigger. Combined with (not overridden by) the parent Collapsible’s own disabled.
labelClassName	string	—	Extra utility classes for the label text specifically, merged after the component’s own.

Also carries every prop of Omit<PressableProps, 'accessibilityRole' | 'accessibilityState' | 'children' | 'disabled' | 'role'> — that upstream contract is not reproduced here.

The executable fixtures below are the source-grounded usage examples; consumers should not infer state ownership from DOM structure or another UI library.

Provider and dependencies

• No additional provider is required by this family. BeeUIProvider remains the recommended application root.
• Peer/native dependencies visible to this Registry item: react, react-native
• Registry dependency closure: core-cn, text, theme
• Safe-area ownership remains explicit: shell surfaces touching system edges opt into SafeArea; components do not silently invent app-shell insets.
• Web consumers load the BeeUI semantic theme CSS as documented in Web onboarding.

Platform behavior

This family ships no platform-specific file, and its own source takes no Platform branch.

The same public family is exposed across the supported target matrix; meaningful platform differences remain governed by the compatibility contract.

Evidence classes are not equal and this page does not blur them: Web behavior is exercised in a real browser, while iOS and Android carry package/export and native-compile evidence, which is not device-runtime proof. The compatibility contract records which class each claim rests on.

Accessibility

• Roles this family assigns: button, region — set in collapsible.tsx by the components themselves, not by the caller.
• Accessibility states and properties it sets: accessibilityLabel, disabled, expanded — read from collapsible.tsx.

Keyboard/focus behavior, announcements, Dynamic Type/Web zoom, RTL and reduced-motion expectations are not derived here — see Accessibility overview, Keyboard & focus, RTL/localization and Large text & zoom. BeeUI does not claim universal accessibility certification from automated tests.

Styling and theming

• Style axes: none of its own — its appearance comes from tokens and your own classes; it also carries Omit<PressableProps, 'accessibilityRole' | 'accessibilityState' | 'children' | 'disabled' | 'role'>, Omit<ViewProps, 'children'>, Omit<ViewProps, 'role'>.
• Class-name surfaces: className, labelClassName.

Colors, spacing and typography come from semantic tokens rather than from values written here — see Theming and Density. A className is an escape hatch for source-owned and application work, not a cross-engine portability guarantee.

Executable examples

• Primary executable fixture: apps/showcase/__tests__/accordion-collapsible-aria-expanded.test.tsx
• Additional fixture: apps/showcase/__tests__/component-contracts.test.tsx
• Additional fixture: apps/showcase/component-gallery/component-gallery.tsx

Addressable examples

Each link below opens the Showcase at that exact example, not at the top of the gallery:

• basic — smallest meaningful complete usage

The Showcase links demonstrate Web behavior; use the native-preview guide for real simulator/emulator/device paths.

Live Web preview

This frame loads the real BeeUI Web Showcase on demand; it is not a second docs-only implementation. It proves browser behavior only. Use native preview for iOS/Android simulator, emulator or device paths.

Composition anatomy

• Family root / primary export: Collapsible
  • Public composition parts / helpers:
    • CollapsibleContent
    • CollapsibleTrigger
  • Exported type surface:
    • CollapsibleContentProps
    • CollapsibleProps
    • CollapsibleTriggerProps

The tree above is ordinary document structure so it remains readable with keyboard and assistive technology; it is derived from the real public export family rather than a canvas-only diagram.

Verified example source

These are the parts of the typechecked runtime Showcase fixture behind this live preview — apps/showcase/component-gallery/component-gallery.tsx, 1103 lines — where Collapsible is actually used: 6 lines in 1 place. Each block is copied verbatim from the line range named above it, so it is the same executable source, not a retelling of it. The rest of that file exercises other families and is not reproduced here.

Imports the examples below need (a filtered subset of the fixture’s own top-level imports):

import { Collapsible, CollapsibleContent, CollapsibleTrigger, Text } from '@beemvp/beeui-ui';

lines 958–963:

              <Collapsible>
                <CollapsibleTrigger>Advanced options</CollapsibleTrigger>
                <CollapsibleContent>
                  <Text tone="muted">Hidden until expanded.</Text>
                </CollapsibleContent>
              </Collapsible>

Open the fixture itself for the full surrounding component. For a smaller app-specific example, start from the imports and fixture-state blocks above and keep only the state your screen owns.

Limitations

CollapsibleTrigger and CollapsibleContent throw outside a Collapsible. A trigger’s own disabled is combined with the parent’s, so one trigger cannot opt back in when the whole collapsible is disabled. Opening and closing is a mount/unmount switch with no height animation.

Related

• All components
• Production patterns
• Showcase
• CLI & source ownership
• Source