---
title: "tabBarController(_:sidebar:trailingSwipeActionsConfigurationFor:)"
framework: uikit
role: symbol
role_heading: Instance Method
path: "uikit/uitabbarcontroller/sidebar-swift.class/delegate-swift.protocol/tabbarcontroller(_:sidebar:trailingswipeactionsconfigurationfor:)"
---

# tabBarController(_:sidebar:trailingSwipeActionsConfigurationFor:)

Called when the sidebar is about to show trailing swipe actions for a particular tab. Return either a UISwipeActionsConfiguration object or nil if this tab does not show swipe actions.

## Declaration

```swift
optional func tabBarController(_ tabBarController: UITabBarController, sidebar: UITabBarController.Sidebar, trailingSwipeActionsConfigurationFor tab: UITab) -> UISwipeActionsConfiguration?
```

## Mentioned in

Elevating your iPad app with a tab bar and sidebar