iOS 内容扩展更新推送

Question

iMessage 在屏幕上时更新丰富的推送。您可以看到用户现在正在输入什么，消息将添加到您的对话中。

所以问题是：当我已经在查看已打开的富推送时，我如何才能捕捉到新的推送通知？ UNNotificationContentExtension 中是否有任何事件可以捕获新事件并更新视图？我唯一知道的是：

- (void)didReceiveNotification:(UNNotification *)notification

但是只有第一次打开推送才会触发

编辑：

发现在UNNotificationContentExtension协议中：

// This will be called to send the notification to be displayed by
// the extension. If the extension is being displayed and more related
// notifications arrive (eg. more messages for the same conversation)
// the same method will be called for each new notification.
- (void)didReceiveNotification:(UNNotification *)notification;

所以它应该可以工作，但我还是无法捕捉到这个事件。也许我需要以某种方式向当前显示的内容发送新通知 "related"？

Answer 1

找出问题所在。

Apple 文档：

When displaying notifications, the system visually groups notifications with the same thread identifier together. For remote notifications, the value of this property is set to the value of the thread-id key in the aps dictionary.

将键 "thread-id" 添加到 aps 字典后，此函数现在可以正确接收事件

- (void)didReceiveNotification:(UNNotification *)notification;