>
>
> Acquiring wifilock like this only makes sure the system does not shut down 
> wifi. The actual wifi connection still goes through power optimizations 
> once screen is off in the driver. 
>
> This should not drop your connections,
>

But it does.   As I said, it sends a "FIN" packet - that's a request to 
close the connection.   The server responds with an ACK and.a FIN of its 
own which Android ACKs.   This is the textbook-standard way to close a TCP 
connection, and it's initiated by Android when the display goes off.     We 
watch it all on our network sniffers and it's 100% reliable and repeatable.

The Android device does *not* send a FIN packet as long as the display 
stays on, no matter how long it stays on.

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Android Developers" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to android-developers+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.


Reply via email to