Acciones y categorías de notificaciones

Notificaciones interactivas

import UserNotifications
// Category = a set of actions
// Each delivered notification names its category
// so the system shows the right buttons

Definición de una acción

import UserNotifications
let accept = UNNotificationAction(
    identifier: "ACCEPT",
    title: String(localized: "Accept"),
    options: [.foreground])
let decline = UNNotificationAction(
    identifier: "DECLINE",
    title: String(localized: "Decline"),
    options: [.destructive])

Agrupación en una categoría

import UserNotifications
let inviteCategory = UNNotificationCategory(
    identifier: "INVITE",
    actions: [accept, decline],
    intentIdentifiers: [],
    options: [])
UNUserNotificationCenter.current()
    .setNotificationCategories([inviteCategory])

Asignación de una categoría a una notificación

import UserNotifications
let content = UNMutableNotificationContent()
content.title = String(localized: "New invite")
content.body = String(localized: "Ada invited you")
content.categoryIdentifier = "INVITE"

Gestión de la acción elegida

import UserNotifications
func userNotificationCenter(
    _ center: UNUserNotificationCenter,
    didReceive response: UNNotificationResponse
) async {
    switch response.actionIdentifier {
    case "ACCEPT":  print("accepted")
    case "DECLINE": print("declined")
    default:        break
    }
}

Identificadores predeterminado y de descarte

import UserNotifications
func route(_ id: String) {
    switch id {
    case UNNotificationDefaultActionIdentifier:
        print("opened the app")
    case UNNotificationDismissActionIdentifier:
        print("dismissed")
    default:
        print("custom action", id)
    }
}

Acciones de entrada de texto

import UserNotifications
let reply = UNTextInputNotificationAction(
    identifier: "REPLY",
    title: String(localized: "Reply"),
    options: [],
    textInputButtonTitle: String(localized: "Send"),
    textInputPlaceholder: String(localized: "Message"))

Lectura del texto introducido

import UserNotifications
func handle(_ response: UNNotificationResponse) {
    if let textResponse = response
        as? UNTextInputNotificationResponse {
        let message = textResponse.userText
        print("reply:", message)
    }
}

Opciones de categoría

import UserNotifications
let category = UNNotificationCategory(
    identifier: "MESSAGE",
    actions: [reply],
    intentIdentifiers: [],
    options: [.customDismissAction,
              .hiddenPreviewsShowTitle])
_ = category

Acciones en segundo plano y en primer plano

import UserNotifications
let snooze = UNNotificationAction(
    identifier: "SNOOZE",
    title: String(localized: "Snooze"),
    options: []) // background, no app launch
let open = UNNotificationAction(
    identifier: "OPEN",
    title: String(localized: "Open"),
    options: [.foreground]) // launches app
_ = (snooze, open)

Un flujo completo de respuesta

import UserNotifications
func handle(_ response: UNNotificationResponse) async {
    switch response.actionIdentifier {
    case "REPLY":
        let text = (response as?
            UNTextInputNotificationResponse)?.userText ?? ""
        print("send reply:", text)
    case UNNotificationDefaultActionIdentifier:
        print("open conversation")
    default:
        break
    }
}

Comprobación rápida

Resumen