1# NotificationActionButton 2 3The **NotificationActionButton** module provides APIs for defining the button displayed in the notification. 4 5> **NOTE** 6> 7> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version. 8 9## Attributes 10 11**System capability**: SystemCapability.Notification.Notification 12 13| Name | Type | Read-only| Mandatory| Description | 14| --------- | ----------------------------------------------- | --- | ---- | ------------------------- | 15| title | string | No | Yes | Button title. | 16| wantAgent | [WantAgent](js-apis-app-ability-wantAgent.md) | No | Yes | **WantAgent** of the button.| 17| extras | { [key: string]: any } | No | No | Extra information of the button. | 18| userInput<sup>8+</sup> | [NotificationUserInput](js-apis-inner-notification-notificationUserInput.md) | No | No | User input object. | 19