I am having some issues with Whatsapp notifications and I'd like to better understand what's the root cause of the problem.
It seems that the application is somehow bypassing (at least partially) the system notification system. In addition to ignoring Touchwiz blocking mode, the application works weirdly because its notifications do not turn off music volume when I receive them while listening to music, and it is able to manage by itself the led colors.
How can they do that from a technical point of view?
Is there any way to disable this behavior and have Whatsapp to entirely rely on system notification system and completely follow its rules?