listImageRowHandler

Declaration

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

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:

item

The list item that contains the image.

index

The selected image’s index in the list item’s image row.

completionBlock

The block you call to notify CarPlay when you finish processing the selection.

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