Notification Framework
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The document provides an overview of the User Notifications Framework in iOS, which provides a unified API for handling both local and remote notifications. It discusses registration and requesting authorization, content including title, subtitle and body, triggers including time intervals and locations, management of notifications, actions that can be attached, and media attachments. Service extensions and the notification user interface are also briefly covered.
![User Notifications Framework
Registration
User Authorization Options
• Badging
• Sound Alerts
• Banners
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in
// Code for handling goes here
}
Needed for both local and remote notifications](https://image.slidesharecdn.com/331cf6b9-9946-45f0-9776-6d9fd96a2a1d-161019104632/85/Notification-Framework-6-320.jpg)
![Actions
Registration
let replyAction = UNTextInputNotificationAction(identifier: "reply",
title: "Reply",
options: [],
textInputButtonTitle: "Send",
textInputPlaceholder: "Type message here...")
let seenAction = UNNotificationAction(identifier:"seen",
title:"Mark as Read",
options:[])
let dismissAction = UNNotificationAction(identifier:"dismiss",
title:"Dismiss",
options:[])
let category = UNNotificationCategory(identifier: "chat-event",
actions: [replyAction, seenAction, dismissAction],
minimalActions: [replyAction,dismissAction],
intentIdentifiers: [], options: [])
UNUserNotificationCenter.current().setNotificationCategories([category])](https://image.slidesharecdn.com/331cf6b9-9946-45f0-9776-6d9fd96a2a1d-161019104632/85/Notification-Framework-15-320.jpg)
![Media Attachment
Implementation
override func didReceive(_ request: UNNotificationRequest,
withContentHandler contentHandler:(UNNotificationContent) -> Void) {
self.contentHandler = contentHandler
let content = (request.content.mutableCopy() as! UNMutableNotificationContent)
// Handle attachment downloading
let url = // file url
let attachment = try? UNNotificationAttachment(identifier: "image",
url: url,
options: nil)
content.attachments = [attachment!]
contentHandler(content)
}](https://image.slidesharecdn.com/331cf6b9-9946-45f0-9776-6d9fd96a2a1d-161019104632/85/Notification-Framework-21-320.jpg)
![Media Attachment
Push
Local Notification
Remote Notification
let content = UNMutableNotificationContent()
let imagePath = Bundle.main.pathForResource("test", ofType: ".jpg")
let attachment = try? UNNotificationAttachment(identifier: "image",
url: URL(fileURLWithPath: imagePath!),
options: nil)
content.attachments = [attachment!]
{
"aps": {
"alert": "Someone chat to you.",
“mutable-content”:1
},
“attachment-url”:”…”
}](https://image.slidesharecdn.com/331cf6b9-9946-45f0-9776-6d9fd96a2a1d-161019104632/85/Notification-Framework-22-320.jpg)
Notification Framework
- 1. Notification Framework DMI Internal Tech Talk Sokna Ly Associate Software Engineer, iOS
- 2. Agenda Notifications Overview User Notifications Framework • Registration • Content • Trigger • Management • Actions
- 3. Agenda Service Extensions Media Attachments Notifications User Interface
- 4. Overview Existing API Overview • Different callbacks for local and remote notifications Limited control after notifications are scheduled • Different support across multiple platforms • Depreciated in iOS 10
- 5. User Notifications Framework • Familiar API • Expanded content • Same code path for local and remote notification handling S • Better notification management • In-app presentation option • Schedule and handle notifications in extensions
- 6. User Notifications Framework Registration User Authorization Options • Badging • Sound Alerts • Banners UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in // Code for handling goes here } Needed for both local and remote notifications
- 8. User Notifications Framework let content = UNMutableNotificationContent() content.title = “This is title" content.subtitle = “This is subtitle" content.body = “I’m body…wahooo!” content.badge = 1 Local Notification Remote Notification { "aps": { "alert": { "title": "This is title", "subtitle": "This is subtitle", "body": "I'm body...wahooo!" }, "badge": 1 } }
- 9. User Notifications Framework Trigger Time Interval CalendarLocation Push
- 10. Trigger Time Interval Example UNTimeIntervalNotificationTrigger(timeInterval: 60, repeats: false) • “In 1 minute from now” • “Repeat every hour starting now” UNTimeIntervalNotificationTrigger(timeInterval: 3600, repeats: false)
- 11. Trigger Calendar Example let dateComponents = DateComponents() // Configure dateComponents UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: false) • “2:00pm tomorrow for meeting” • “Repeat every Weekdays at 6:00am for gym”
- 12. Trigger Calendar Example let region = CLRegion() // Configure region UNLocationNotificationTrigger(region: region, repeats: false) • “When leaving home” • “When arriving in proximity of shopping store”
- 13. User Notifications Framework Management Add notification request Update and promote Notifications Remove Notifications (Pending, Delivered)
- 14. User Notifications Framework Actions Buttons with customizable title Background and foreground Text input iOS and watchOS
- 15. Actions Registration let replyAction = UNTextInputNotificationAction(identifier: "reply", title: "Reply", options: [], textInputButtonTitle: "Send", textInputPlaceholder: "Type message here...") let seenAction = UNNotificationAction(identifier:"seen", title:"Mark as Read", options:[]) let dismissAction = UNNotificationAction(identifier:"dismiss", title:"Dismiss", options:[]) let category = UNNotificationCategory(identifier: "chat-event", actions: [replyAction, seenAction, dismissAction], minimalActions: [replyAction,dismissAction], intentIdentifiers: [], options: []) UNUserNotificationCenter.current().setNotificationCategories([category])
- 16. Actions Presentation Local Notification Remote Notification let content = UNMutableNotificationContent() content.categoryIdentifier = "chat-event" { "aps": { "alert": "Someone chat to you.", "category":"chat-event" } }
- 17. Service Extension Basic • Non UI iOS Extension • Augment or Replace of content of Remote Notifications • End-to-end encryption • Short execution time • Add attachments
- 18. Service Extension Old school Server-side App APNs Device New school Server-side App APNs DeviceExtension
- 19. Service Extension Implementation It’s time for implementation
- 20. Media Attachments Basic • Local and remote notifications • Support image, audio, video, gif • Download in the service extension • Limited processing time and size
- 21. Media Attachment Implementation override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler:(UNNotificationContent) -> Void) { self.contentHandler = contentHandler let content = (request.content.mutableCopy() as! UNMutableNotificationContent) // Handle attachment downloading let url = // file url let attachment = try? UNNotificationAttachment(identifier: "image", url: url, options: nil) content.attachments = [attachment!] contentHandler(content) }
- 22. Media Attachment Push Local Notification Remote Notification let content = UNMutableNotificationContent() let imagePath = Bundle.main.pathForResource("test", ofType: ".jpg") let attachment = try? UNNotificationAttachment(identifier: "image", url: URL(fileURLWithPath: imagePath!), options: nil) content.attachments = [attachment!] { "aps": { "alert": "Someone chat to you.", “mutable-content”:1 }, “attachment-url”:”…” }
- 23. Notification User Interface • Notification content extension • Custom views • No interactions • Respond to notification actions
- 24. Implementation
- 25. Thanks