Question

Noticed that my MFMailComposeViewController that I use to modally pop a dialog to send email no longer works in iOS6. It still pops the dialog, but I can’t set the body text, or input anything into the view. All I can do is press cancel.

The class implements the MFMailComposeViewControllerDelegate interface and here’s some of the code:

//h file
@interface ASEmailSender : NSObject


//m file
@implementation MyEmailSender () <MFMailComposeViewControllerDelegate>
@end

@implementation MyEmailSender
...

- (void)emailFile:(ASFile *)file inController:(UIViewController *)viewController {
    MFMailComposeViewController *mailController = [[MFMailComposeViewController alloc] init];
    if ([MFMailComposeViewController canSendMail]) {
        mailController.mailComposeDelegate = self;
        [mailController setSubject:@"my subject"];
        [mailController setMessageBody:@"msg body here" isHTML:NO];

        [viewController showIsLoading:YES];
        self.viewController = viewController
        [viewController presentModalViewController:mailController animated:YES];
    }   
}

- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
    [self.viewController dismissModalViewControllerAnimated:YES];
}

It works great in iOS5.

Answer 1

I fixed this by changing MyEmailSender to be a UIViewController instead of an NSObject. For some reason this fixes the problem when running in iOS6. The new code looks like:

//h file
@interface ASEmailSender : UIViewController <MFMailComposeViewControllerDelegate>


//m file
@implementation MyEmailSender
...
(same functions as before)

Now it works in both iOS5 and iOS6.