Jean-Luc Makiola
f0e2e12939
The create form (v1.2) now edits: a pencil on the detail screen (writable calendars only, contextual WRITE upgrade like delete) opens it prefilled via EventDetail.toEditForm; populated sections always show, the calendar is fixed, and a dirty-check writes only changed columns (pristine saves are no-ops). Saving a dirty recurring event parks in SaveUiState.AwaitingScope and asks how far the change reaches (Google model): "only this event" = modified-occurrence exception via CONTENT_EXCEPTION_URI (empty optionals as explicit NULLs since the provider clones the parent row), "this and all following" = series split (insert new event first, then truncate), "all events" = series-row update with the time delta applied to the series DTSTART. A changed rule drops the exception option. Delete gained the same middle scope. Recurrence: EventForm.rrule + SimpleRecurrence (FREQ/INTERVAL/UNTIL/COUNT + weekly BYDAY with locale-ordered weekday toggles) behind a picker on create and edit; unrepresentable rules render humanized (shared ui/common RecurrenceText) and survive verbatim. UNTIL validation flags rules ending before the event starts. Provider lessons baked in (verified on-device via adb probes): instance caches regenerate only from an update's own values, so truncation sends the full time-column set (truncateSeries) — RRULE-only updates left a stale duplicate occurrence on the split day; UNTIL is written as the local end of day in UTC (toRRule(zone), previousLocalDayEndUtcMillis) so UTC+x zones can't leak an extra day. Reminder edits reconcile against actual provider rows, keeping untouched rows' methods. Tests: RecurrenceTest (parse/render/round-trip, truncation), update/exception mapper paths, repository pass-throughs, prefill + populatedFields, raw-title mapper. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Calendula
A modern Material 3 Expressive calendar app for Android.
Calendula is named after the flower of the same name, whose name comes from
the Latin kalendae — the first day of the month — the same root as the
word "calendar". Calendula reads from Android's built-in CalendarContract,
so any calendar source synced to your device (CalDAV via DAVx5, Google,
local, WebCal subscriptions, ...) is shown.
Features (V1)
- Month, Week, and Day views
- Read-only event details (write support comes in V2)
- Multi-calendar visibility toggle
- Material You Dynamic Color (Android 12+)
- Light/Dark theme follows system
- German + English UI
Building
Requires Android SDK 36 and JDK 17. The Gradle wrapper is checked in, so no host Gradle install is needed:
# Build debug APK
./gradlew assembleDebug
# Run unit tests
./gradlew test
# Run lint
./gradlew lint
If your default JDK is something other than 17, set JAVA_HOME explicitly:
JAVA_HOME=/path/to/jdk-17 ./gradlew assembleDebug
License
MIT — Jean-Luc Makiola, 2026