v0.4.0
Tapping an event in the week/day timeline opens a full-screen detail destination (MD3 list→detail, not a bottom sheet) overlaying the calendar with a slide transition. One card per field (when, calendar, location, description, attendees, recurrence) with leading icons; location taps open a maps intent. Loading/Failure/Success throughout. Recurrence is humanized from the RRULE — e.g. "Every week on Tue and Thu until 31 Dec 2026" — covering FREQ/INTERVAL/BYDAY/UNTIL/COUNT with abbreviated, italicised day names and localized list formatting, falling back to a generic label for rules it can't render. Also: - fix: recurring events failed to open (series row stores DURATION, not DTEND, so the mapper dropped them as EventNotFound). The detail keeps them and shows the tapped occurrence's own times from Instances. - feat: month day cell → opens the day view anchored to that date. - build: add material-icons-extended (R8 strips unused icons in release). Co-Authored-By: Claude Opus 4.8 <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