NavigationApple

Tab accessory

Adapt application-owned accessory content to expanded and inline tab-bar placement.

Public APILumenTabAccessoryApple / SwiftUISwift product: LumenUI

Apple availability

Supported native targets

Import LumenUI in the target that uses this component. iPad support follows the iOS package baseline and uses native iPad layout behavior.

iPhone · iOS 16+iPad · iPadOS 16+

Native example

Use Tab accessory

Use for a mini player, call, upload, recording, or persistent status. Keep accessory domain state and actions application-owned.

Tab accessory rendered in the iPhone simulator Lumen playground — Verified runtime captureiPhone simulator

TabView {
    FeedView().tabItem { Label("Feed", systemImage: "rectangle.stack") }
}
.lumenTabViewBottomAccessory {
    LumenTabAccessory {
        ExpandedUploadStatus()
    } compact: {
        CompactUploadStatus()
    }
}

Reference

Public API

The primary shared and platform-specific options exposed by LumenTabAccessory.

API	Values or type	Default	Description
expanded	`@ViewBuilder () -> View`	`Required`	Provides content displayed above a regular-size tab bar.
compact	`@ViewBuilder () -> View`	`Required`	Provides reduced content displayed inline with a minimized tab bar.
isEnabled	`Bool`	`true`	Controls whether the surrounding tab accessory modifier presents content.

Native behavior

Design and accessibility

When to use it

Use for a mini player, call, upload, recording, or persistent status. Keep accessory domain state and actions application-owned.

Accessibility

Expanded and compact content preserve their own readable labels, controls, and traversal order while SwiftUI owns placement changes.