dismissModalViewControllerAnimated needs to finish animating first before removing from superview? - ios

Question

I've implemented the MFMailComposeViewController and encountered a problem.
In my superview, I implemented a button, when pressed, brings up in-app emailing.
Everything works fine, until when the user sends or closes the mail form.
It seems like I need to wait for the animation (dismiss the email form) to end first, before [self.view removeFromSuperview]; can be run. If this line is run before the animation ends nothing happens and the view is not removed, thus I can't tap anything on the screen as the current UIView is not removed.
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
[self dismissModalViewControllerAnimated:YES];
// Removes the view so that delegate is passed back to the superview
[self.view removeFromSuperview];
}
My superview action which calls the class:
- (IBAction)buttonPressedSendMail {
MailComposerViewController *mailComposer = [[MailComposerViewController alloc] init];
[self addSubview:mailComposer.view];
[mailComposer sendMail:nil];
}
[[self view] setHidden:YES]; to hide the UIView works, but I don't think this is the right way of doing it.

Answer 1

Present your view controller with presentModalViewController:animated:
MailComposerViewController *mailComposer = [[MailComposerViewController alloc] init];
[self presentModalViewController:mailComposer animated:YES];
Then dismiss the modal view like you do
[self dismissModalViewControllerAnimated:YES];
No need to add or remove the view controller's view.

Answer 2

You can use the dispatch_after block. You can adjust the delayInSeconds to after the mail composer dismissed.
double delayInSeconds = 1.0;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
[self.view removeFromSuperview];
});
or you can try this:
[self dismissViewControllerAnimated:YES completion:^{
[self.view removeFromSuperview];
}];