I try to develop an 'add this event to your agenda' feature on a mobile website. I found some entries about that but none of them works for me.
How to add .vcs file to Android Calendar
Add Calendar event to Android from web .vcs download
I can't asking for my users to download an app if they want to open this file.
I've made several tests, on Nexus 4 (4.4.2) and Nexus 5 (4.4.4) neither ical or vcal files work. Files are downloaded, but I can't open them. The behavior is different on Samsung devices. On S2(4.0.3) only vcal format works. It starts an 'Agenda' activity. On S4 mini (4.2.2), iCal and vCal files are handled by 'S Planner'.
Any Ideas ?