Static MFMessageComposeViewControllerTextMessageAvailabilityKey

pub unsafe static MFMessageComposeViewControllerTextMessageAvailabilityKey: &'static NSString

Available on crate feature MFMessageComposeViewController only.

UserInfo key for MFMessageComposeViewControllerTextMessageAvailabilityDidChangeNotification containing the value of +[MFMessageComposeViewController canSendText]

The value of this key is an NSNumber containing a BOOL value. This value matches the result of +[MFMessageComposeViewController canSendText] .

See also Apple’s documentation