MFMailComposeViewController not dismiss with Cancel button - ios

Question

I've a class that subclass NSObject with a function do display a MFMailComposeViewController. Here is the code :
MFMailComposeViewController *mailController = [[MFMailComposeViewController alloc] init];
mailController.mailComposeDelegate = self;
[mailController setSubject:#"Sample Subject"];
[mailController setMessageBody:#"Here is some main text in the email!" isHTML:NO];
[mailController setToRecipients:#[self.email]];
UITabBarController *tabbarController = (UITabBarController *)[UIApplication sharedApplication].keyWindow.rootViewController;
UINavigationController *navigationController = tabbarController.selectedViewController;
[navigationController.topViewController presentViewController:mailController animated:YES completion:NULL];
Everything works well with this code. The problem is when I want to dismiss the MFMailComposeViewController. Sometime I get a crash, sometimes it just don't happens nothing. I've implemented the delegate function :
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
UITabBarController *tabbarController = (UITabBarController *)[UIApplication sharedApplication].keyWindow.rootViewController;
UINavigationController *navigationController = tabbarController.selectedViewController;
[navigationController.topViewController dismissViewControllerAnimated:YES completion:nil];
}
After that I tried to show and dismiss it directlty from a ViewController and everything was working. Even the cancel button.
I don't know why it works in my ViewController Class but not in my subclass of NSObject.
When I get the crash I've seen in the logs :
-[MFMailComposeInternalViewController _notifyCompositionDidFinish]

Answer 1

Try this,
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
// Do your work and dismiss after you are done with it.
[controller dismissViewControllerAnimated:YES completion:nil];
}
Hope that helps.

Answer 2

Try this in your singleton class
UIViewController *currentViewController;
- (void)sendEmail:(id) viewController {
currentViewController=(UIViewController*)viewController;
NSString * appVersionString =#"";
NSString *strEmailMessage=#"";
NSString *strEmailSubject=#"";
NSArray *toRecipents =#"";
if ([MFMailComposeViewController canSendMail]) {
MFMailComposeViewController *mc = [[MFMailComposeViewController alloc] init];
mc.mailComposeDelegate =viewController;
[mc setSubject:strEmailSubject];
[mc setMessageBody:strEmailMessage isHTML:NO];
[mc setToRecipients:toRecipents];
[viewController presentViewController:mc animated:YES completion:NULL];
}
else{
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:#"Error" message:#"Please setup email account" delegate:nil cancelButtonTitle:#"cancle" otherButtonTitles:nil];
[alert show];
}
}
set delegate like this
mc.mailComposeDelegate =viewController;
to dissmiss viewController
- (void) mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
switch (result)
{
case MFMailComposeResultCancelled:
break;
case MFMailComposeResultSaved:
break;
case MFMailComposeResultSent:
break;
case MFMailComposeResultFailed:
break;
}
// Close the Mail Interface
[currentViewController dismissViewControllerAnimated:YES completion:NULL];
}
i hope this will work...