在打盹模式下维护 window 的持续时间是多少？

Question

I am looking to use the Jobscheduler api to schedule a job when there's connectivity to download a bunch of images from push messages. Since wake locks are disregarded by the os in doze mode and since an fcm message can only wake the device a maximum of 10s, the maintenance window seems like the only way for me to download the images from all the push notifications.

The images will be max 100kb each and a maximum of 50 images at a time. So basically all in all maximum 5mb data usage.

I was wondering if the window during doze mode will be wide enough to allow these downloads.

I have searched across Google and have come across a few loose data details claiming 5 - 10 minutes.

Can anyone please guide me to the correct information.

Thanks and regards.

Answer 1

10 minutes

It seems to be documented, now, finally!

‡ If network access is restricted, the app is granted a window of 10 minutes to use the network at the specified interval.

BUT,

You can't count on it to be the same across all the Android devices out there. Of course, the OEM can alter this. The answer would therefore be, a few minutes as no OEM would insensibly put it out to be just a minute or two.