如何删除一个android通知？

Question

I want to push a notification to the user every X minutes.

However if there already exist an unread notification,

I want to delete it and replace it with a new one. How can I delete?

How can I check how many unread notification my app has already pushed?

Answer 1

To replace an existing notification with a new one you should simply post a notification with the same id, this behavior is mentioned in the documentation of NotificationManager 's notify() method. If you want to just remove a notification, call cancel() providing the id you used to start it.

Regarding counting the number of notifications your app has sent, I think the best solution would be to just store a counter and increment it once a notification has been sent.