iOS6: MFMailComposeViewController slow to load and flashes black screen; MailCompositionS begins hogging memory

Question

On iOS 6, after sending a few email messages (by using MFMailComposeViewController), the email screens become very slow to open- at first opening with none of the fields pop

Answer 1

on ios 6 the mail composer is its own app (inside yours) :: http://oleb.net/blog/2012/10/remote-view-controllers-in-ios-6/

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the code looks good to me if you are using ARC else it leaks and on ios6 that might result in x XPC remotes

if all is good there, Id blame it on a bug in apple's new handling of XPC

Answer 2

there's another possible solution:

Remove custom fonts from the appearance methods, if you have any

https://stackoverflow.com/a/19910337/104170