Modify the Push notification content from Userinfo in ios

Question

When receiving a notification, I want to change the user info content before showing in mobile notification in iOS.

"aps": {
    "alert": {
        "body": "hello",
        "sound": "Default"
        "badge": "1"

    }
}

Example I want to show world instead of hello.

Is this possible in iOS 10?

Answer 1

You can implement notification extension for it. Here is link : Notification Extension

You must implement the didReceive(_:withContentHandler:) method and use it to process incoming notifications.

override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
  self.contentHandler = contentHandler
  bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)

  if let bestAttemptContent = bestAttemptContent {
    // Modify the notification content here
    // Convert received string
    let data = bestAttemptContent.body.data(using: .utf8)!
    // Apply encoded string
    bestAttemptContent.body = String(data: data, encoding: .utf16)

    contentHandler(bestAttemptContent)
   }
}