Refresh Notification After Deleting From User

I have a backgroundservice running, an icon is displayed in the status- bar. When a user clicks the button "delete notifications" my icon dissappears also. But i want that after that my icon appears again! So that the user is able to click on the notification to get into my application. Now i display the notification in a thread every time. But i want to display it only if it was deleted. I think the best way is to check if the notification is displayed, is there a way to get this information?

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