it seems that Kindle kills Aedict Popup in spite of Popup having a
service defined. You can verify in your device settings that when
the Popup stops responding, the Popup service is stopped. The
service is stopped by the Android system, even though there is a
promise by Android to only stop services when the system is really
really low on memory. I guess Kindle is somewhat special in this
regard, maybe it stops Services to save battery/go into deep
sleep/some other reason.
The thing is that when Popup is killed by Android, the clipboard
listener is removed by Android and there's not much Aedict Popup can
do about it. The only thing is to add an alarm timer which wakes up
Popup every 1 second and re-registers the clipboard listener. The
trouble with this solution is that it would kill your battery really
fast, that's why the AlarmService actually only allows wake-up calls
once every 60 seconds or so. That would mean that the Popup is
basically randomly dead for 1..59 seconds until the alarm service
I have created a question regarding this:
Don't hold your breath though - Android is a piece of crap and this
limitation is probably not solvable.
I imagine that the Google Translate service suffers from the very
same issue. It would be interesting to test this assumption.