Android Question Cross platform mobile notification

See this example: [B4X] [B4XPages] Firebase Push Example

Erel said:

See this example: [B4X] [B4XPages] Firebase Push Example

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Thank you very much @Erel! You are the best

@Erel I followed the tutorial, but probably there was I misunderstanding.
I need to show a notification within the app (B4A & B4i) not from a console. I don't need to spread a push message from a server to all "subscribed" devices but I need to programmatically show a system notification (Android & iOS) from a B4XPages App.

I found this within the community:

I'm interested to implement a simple notifications (with the built-in Notification object).
I need to do the same thing within the B4i App (I'm developing a B4XPages App).

The question in the first post is indeed not clear. You are not talking about a push notification.

Do you want to show a message while the app is open? Simple solution: https://www.b4x.com/android/forum/threads/itopnotification-cutted-out-library.111986/post-698423

Erel said:

The question in the first post is indeed not clear. You are not talking about a push notification.

Do you want to show a message while the app is open? Simple solution: https://www.b4x.com/android/forum/threads/itopnotification-cutted-out-library.111986/post-698423

Click to expand...

Thank you for your suggestion.
I want to show a notification from a service that start at boot.

There is no such thing in iOS.