Files
buzz/mobile/ios/Runner
Tom Brow e71fbe23df fix(mobile): keep loaded timeline visible while reconnecting (#8864)
Returning to an already-open channel after a few minutes in the
background could replace its messages with the loading skeleton.

The relay session drops its socket five seconds into the background, so
nearly every return to the app reconnects. When that reconnect took more
than two seconds, the channel page covered the loaded timeline with the
connection skeleton until the relay came back. The messages provider
already keeps the cached timeline through a reconnect, so the overlay
was the only thing hiding it.

Now a loaded timeline stays visible while the relay reconnects. The
skeleton still shows when nothing has loaded yet, and forums keep their
existing behavior (skeleton only before any posts load).

To keep a reconnect indicator, the iOS title capsule now shows a thin
bar in the chat color (the Appearance accent) along its bottom edge
while a page with loaded content is not current. For a channel timeline
that covers both the reconnect and the catch-up after it (resubscribing
and fetching the newest window). The wait has no known length, so the
bar sweeps in, pulses until the channel is current, then fades. Reduce
Motion shows a static bar. Forums show it only while reconnecting,
because their posts provider doesn't refetch after a reconnect. The
native navigation view owns the bar, so it survives title rebuilds.
Android has no title capsule and is unchanged.

### Demo

iPhone 18 Pro simulator on a local relay: background the app for more
than 5s with the relay down, return, then let the relay come back. About
8s of relay startup is cut from the middle.


https://github.com/user-attachments/assets/e88d0191-766b-4054-bc00-99ed306cd0cc

### Before merge

- [x] Kenny Lopez reviews the visible changes ([approved in Buzz
#buzz-mobile](buzz://message?channel=9f18f3c6-b5e5-453d-b36d-65487913be0b&id=c8b01eaa3760e44c3b6583f2e02bec576d78679adfb364e5fe718cc0926bdc2d)).

### Validation

- Updated tests: the reconnect cases in `channel_detail_page_test.dart`
and `loading_review_tests.dart` now assert that loaded messages and
cached media stay visible and in place during a reconnect.
- Added test: the iOS navigation payload sets `titleRefreshing` while a
loaded timeline reconnects and clears it on connect.
- Added test: `isCatchingUp` holds from reconnect until the newest
window merges, and is already false when that state publishes.
- Added test: a failed catch-up after reconnect still notifies listeners
once, with `isCatchingUp` false, so the bar clears.
- `flutter analyze` clean, iOS simulator build succeeds, and the full
mobile suite passes on the final head.
- Checked visually on an iOS 27 simulator (demo above): loaded messages
stay visible on resume, and the bar pulses from foreground until the
reconnect's catch-up finishes, then fades.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 07:30:05 -08:00
..
2026-09-03 08:07:04 +00:00