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# CPMessageListItemTrailingConfiguration

An object that describes the appearance of a message list item’s trailing region.

```
class CPMessageListItemTrailingConfiguration
```

## Overview

Use a trailing configuration to describe the visual elements that a message list item’s trailing region contains. The region can show a [`CPMessageTrailingItem`](/documentation/CarPlay/CPMessageTrailingItem) and an image.

Configurations are immutable. To modify the list item’s trailing configuration, update its [`trailingConfiguration`](/documentation/CarPlay/CPMessageListItem/trailingConfiguration) property with a new configuration. CarPlay detects the change and redraws the message list item.

## Topics

### Creating a Configuration

[`init(trailingItem: CPMessageTrailingItem, trailingImage: UIImage?)`](/documentation/CarPlay/CPMessageListItemTrailingConfiguration/init(trailingItem:trailingImage:))

Creates a trailing configuration that contains an item and an image.

[`let CPMaximumMessageItemImageSize: CGSize`](/documentation/CarPlay/CPMaximumMessageItemImageSize)

The maximum size of a message list item’s image.

### Getting the Trailing Item

[`var trailingItem: CPMessageTrailingItem`](/documentation/CarPlay/CPMessageListItemTrailingConfiguration/trailingItem)

The configuration’s item.

[`enum CPMessageTrailingItem`](/documentation/CarPlay/CPMessageTrailingItem)

The accessories that a message list item can display in its trailing region.

### Getting the Trailing Image

[`var trailingImage: UIImage?`](/documentation/CarPlay/CPMessageListItemTrailingConfiguration/trailingImage)

The configuration’s image.

## Relationships

### Conforms To

[`Hashable`](/documentation/Swift/Hashable)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`Equatable`](/documentation/Swift/Equatable)

[`CVarArg`](/documentation/Swift/CVarArg)

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

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