Here's something he's referring to; messaging through Google's cloud infrastructure may be privileged[0]: "Like in Marshmallow, apps can still "punch through" Doze mode by sending a "high-priority message" via Firebase Cloud Messaging (formerly called "Google Cloud Messaging"). High-priority messages are the expected format for instant messaging apps, so users still get notified of messages when their phone is Dozing."
Hard to say whether this is one way to do it, or the only way. (E.g. "Unlike stationary Doze, wake locks (apps requesting the phone stay awake so they can do background tasks) are still allowed.")
Hard to say whether this is one way to do it, or the only way. (E.g. "Unlike stationary Doze, wake locks (apps requesting the phone stay awake so they can do background tasks) are still allowed.")
[0] http://arstechnica.com/gadgets/2016/08/android-7-0-nougat-re...