listener
inline fun listener(crossinline onStart: (request: ImageRequest) -> Unit = {}, crossinline onCancel: (request: ImageRequest) -> Unit = {}, crossinline onError: (request: ImageRequest, result: ErrorResult) -> Unit = { _, _ -> }, crossinline onSuccess: (request: ImageRequest, result: SuccessResult) -> Unit = { _, _ -> }): ImageRequest.Builder
Convenience function to create and set the Listener.
Set the Listener.