ics file - Cannot open attached .ICS file in iOS7

Question

My app creates an ICS file and send it as attachment to the email as type mimeType:@"text/calendar".

Everything was working perfect in iOS6. If the device has iOS7 the attached .ICS to email does not open.

iOS6 - Opens attached file. iOS7 - Not opening the attached file.

Windows 7 Exchange - Opening the file and works perfect.

Any suggestions?

Answer 1

After debug and comparing sample ICS format, I found that iOS7 does not line multiline description part in the ICS file. I have changed the description to just one line (without any new line chars, see below). iOS 7 started recognizing the file and happy to open it. I am still researching how to add multiple lines of description, because it shows in email body of outlook on windows. Weird but at least know what was causing problem.

DESCRIPTION:My Sample Meeting

Answer 2

Late reply, I know, but try changing the MIME type to

text/v-calendar

Just checked this on an iOS7 device and seems to work