---
title: listImageRowHandler
framework: carplay
role: symbol
role_heading: Instance Property
path: carplay/cplistimagerowitem/listimagerowhandler
---

# listImageRowHandler

An optional closure that CarPlay invokes when the user selects an image.

## Declaration

```swift
var listImageRowHandler: ((CPListImageRowItem, Int, @escaping () -> Void) -> Void)? { get set }
```

## Discussion

Discussion In Swift, this property is a closure that has three parameters: The list item that contains the image. The selected image’s index in the list item’s image row. The completion closure you call to notify CarPlay when you finish processing the selection. In Objective-C, the block’s parameters are: CarPlay executes your handler on the main queue. You must call the completion closure, or completionBlock in Objective-C, after you finish processing the selection. If you need to perform asynchronous tasks, dispatch them to a background queue and call the completion closure or completionBlock when they complete. CarPlay displays an asynchronous progress indicator until you call the completion closure.

## See Also

### Managing Selection

- [handler](carplay/cplistimagerowitem/handler.md)