Contents

init(title:message:preferredStyle:)

Creates and returns a view controller for displaying an alert.

Declaration

convenience init(title: String?, message: String?, preferredStyle: UIAlertController.Style)

Parameters

  • title:

    The title of the alert. Use this string to get people’s attention and communicate the reason for the alert.

  • message:

    Descriptive text that provides additional details about the reason for the alert.

  • preferredStyle:

    The style to use when presenting the alert controller. Use this parameter to configure the alert controller as an action sheet or as a modal alert.

Return Value

An initialized alert controller object.

Discussion

After creating the alert controller, configure any actions that you want people to be able to perform by calling the addAction(_:) method one or more times. When specifying a preferred style of UIAlertController.Style.alert, you may also configure one or more text fields to display in addition to the actions.