Some notifications are not displayed when multiple Notification Show blocks are executed

[Keith]

I have some flows which show notifications to serve as reminders, either triggered by various events or scheduled manually. For example when work starts, a few notifications appears to remind me to do some tasks. Or I can schedule notifications for some tasks I have to do at 8pm tonight. When I finish each task, I would dismiss its notification. In many cases, multiple notifications would be triggered/scheduled to appear at the same time.

However I have noticed that when multiple Notification Show blocks are executed at nearly the same time, only some of the notifications are actually displayed.

A simple test flow to demonstrate the issue:

For each in 60 (index: i)

Fork

Notification show i (proceed when dismissed)

When I run this test flow, only the first few (sometimes as few as 2, at most 15) notifications are shown. 

Grateful if you could look into this, thanks!

[Henrik "The Developer" Lindqvist]

Indeed, the system do throttle how frequent app can post/update notifications, see: https://developer.android.com/develop/ui/views/notifications#limits

It always has, but maybe they reduced the limit recently making it more apparent. I'm unsure if there's much i can do about that.

I'll add an notice in the documentation.

ps://developer.android.com/develop/ui/views/notificatio