Other apps' "Add to calendar" / "Save to calendar" actions commonly fire the
canonical insert intent — ACTION_INSERT with setType("vnd.android.cursor.item/
event") — the singular *item* MIME type (Android's own docs example; used by
e.g. DB Navigator). Calendula advertised INSERT only on the *dir* MIME type, so
it never matched: absent from the chooser, and a silent no-op when it was the
only calendar app installed.
Add the item-typed INSERT to the events filter, plus ACTION_INSERT_OR_EDIT (the
third "add to calendar" action AOSP and Google Calendar register). The runtime
parser already treats any ACTION_INSERT as create; teach insertFormOrNull /
editEventKeyOrNull about INSERT_OR_EDIT so an id-less one is a create and an
id-carrying one opens the edit form.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jean-Luc Makiola
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