screentinker/android
ScreenTinker 66d9dc7fef Resume the playlist where it was after an Activity rebuild (#234)
Reported as "if there are 2 pictures or one picture and one video only one plays",
and the reporter had never once seen the second item.

PlaylistController is constructed with MainActivity, so every rebuild gives it a fresh,
empty instance. The playlist then arrives — from the disk cache or the socket, it does
not matter which — and the controller sees "0 -> N items", treats it as a first load,
and starts at the top. Anything the panel does that recreates the Activity therefore
sends playback back to item 1.

That would be survivable if it happened rarely. On the reproduction it happened at
every item boundary: the device re-registers, the app relaunches itself with
NEW_TASK|CLEAR_TOP, onCreate runs, and playback restarts. The second item was on
screen for 135ms each cycle, which is why it read as "only one plays" rather than as
a glitch. Prod play_logs agree: the second item logging 0-1s durations while the first
accumulated every real second of playtime, on two unrelated customer devices.

Position now lives in ServerConfig, outside the object that keeps being rebuilt, and
start() resumes from it when the save is recent. A cold start, a stale save, a
shrunken playlist, a missing save, or a clock that jumped backwards all fall back to
starting at the top, so genuine first-runs are untouched.

This does NOT address why the panel relaunches itself once per item — that is the
noisier half and wants its own change. It does mean a relaunch costs a restarted item
instead of a playlist that can never advance.

Reproduced first, on an Android 9 emulator with the reporter's exact shape (12MP
portrait JPEG + 40s MP4): image 135ms before, a full 10.05s after, with the video
holding its 40.1s, over four clean cycles.
2026-07-29 09:13:30 -05:00
..
app Resume the playlist where it was after an Activity rebuild (#234) 2026-07-29 09:13:30 -05:00
gradle/wrapper Initial open source release 2026-04-08 12:14:53 -05:00
build.gradle.kts Initial open source release 2026-04-08 12:14:53 -05:00
gradle.properties Initial open source release 2026-04-08 12:14:53 -05:00
gradlew Initial open source release 2026-04-08 12:14:53 -05:00
gradlew.bat Initial open source release 2026-04-08 12:14:53 -05:00
settings.gradle.kts Initial open source release 2026-04-08 12:14:53 -05:00