apns-collapse-id not merging multiple notifications iOS 10
问题 I am trying to collapse/merge multiple notifications belonging to same event in my app. iOS 10 introduced a key name apns-collapse-id in payload. Document says multiple remote notifications with same apns-collapse-id will merged and shown as single notification. So we have the payload with apns-collapse-id and thread-id in our notification payload. Unfortunately as there is no much content online explaining how these keys actually works, for safe play we have used the same unique value for