Adds MonthViewStyle.Continuous: one uninterrupted vertical stream of weeks
instead of month pages.
The layout unit is the ISO week, not the month. A vertical stack of month grids
would still repeat a boundary week at the end of one month and the start of the
next, which is precisely the duplication the issue asks to be rid of. Streaming
weeks means every date appears exactly once.
- Weeks are addressed by an absolute index (epoch 1900, so indices stay
non-negative and map 1:1 onto LazyColumn item indices), giving the list one
stable, gap-free coordinate space to scroll and key by.
- The view model loads a sliding window of weeks around the visible range.
nextLoadWindow() holds the hysteresis: the window only moves once the visible
range comes within four weeks of a loaded edge, so scrolling re-queries the
provider occasionally rather than every frame. Unloaded rows render a
same-height skeleton, so nothing jumps when the window catches up.
- No dimmed "other month" days — every day in the stream belongs to a month
equally. Instead the 1st names its month, which is the only marker needed to
tell one month from the next, and the top bar title tracks the month the
viewport mostly sits in.
- The horizontal swipe detector and the paged AnimatedContent are both off in
this style; vertical scrolling owns the gesture. Today and drawer jump-to-date
animate the list instead of swapping months. The view opens positioned on the
current month.
MonthWeekRow now takes inMonth as a predicate rather than a YearMonth, which is
what lets the same row serve a stream that has no enclosing month.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jean-Luc Makiola
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