A new thing to tell the guys with AndroidPolice. By default, each app is set automatically ranking importance of notifications: system and applications will together decide how and what the user should notify and how annoying. However, the algorithm can be adjusted by hand, putting the severity level for each alert.
Today, each installed in the system app thinks that it is the most important. Any notice, advertising, or even assess the product 5 stars in Google Play should be immediately displayed, but still the smartphone is bound to zoom vibrator, backlight and all available communication methods. But not all users agree. Android N Google introduces a new logic settings, alerts, the beginnings can be seen in the Developer Preview 1 and 2, and now in Developer Preview 3 there is even something to try in a real fight.