Mail Compose not dismiss when click cancel button - ios

Question

I have this code who send a e-mail to users, Im using MFMailCompose:
.h file
#import <UIKit/UIKit.h>
#import <MessageUI/MessageUI.h>
#import <MessageUI/MFMailComposeViewController.h>
#interface TestViewController : UIViewController <MFMailComposeViewControllerDelegate, MFMessageComposeViewControllerDelegate>
#property(nonatomic,assign) id<MFMailComposeViewControllerDelegate> mailComposeDelegate;
.m file
#synthesize mailComposeDelegate
-(void)sendEmail:(NSString*)valor{
//Valor receive the email
NSString *corpoMensagem = #"No have body yet...";
// From within your active view controller
if([MFMailComposeViewController canSendMail]) {
MFMailComposeViewController *mailCont = [[MFMailComposeViewController alloc] init];
mailCont.mailComposeDelegate = self;// Required to invoke mailComposeController when send
[mailCont setSubject:#"FazerBem - Recibo de Compra"];
[mailCont setToRecipients:[NSArray arrayWithObject:valor]];
[mailCont setMessageBody:corpoMensagem isHTML:YES];
[self presentViewController:mailCont animated:YES completion:nil];
}
}
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
if (error){
NSString *errorTitle = #"Erro to send";
NSString *errorDescription = [error localizedDescription];
UIAlertView *errorView = [[UIAlertView alloc]initWithTitle:errorTitle message:errorDescription delegate:self cancelButtonTitle:nil otherButtonTitles:#"OK", nil];
[errorView show];
}
[self becomeFirstResponder];
[self dismissViewControllerAnimated:YES completion:nil];
}
-(void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result{
}
when I click the send button he can send the email to the recipient and can close the screen, now when I click the cancel button, it opens 2 more options 'delete draft' and 'save draft' when I click on one of the app crashes and returns me the following error:
[TestViewController respondsToSelector:]: message sent to deallocated instance 0x16b3b470
How I can solve this problem?

Answer 1

Use Switch case to for performing actions:
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
UIAlertView *alert;
switch (result)
{
case MFMailComposeResultCancelled:
break;
case MFMailComposeResultSaved:
alert = [[UIAlertView alloc] initWithTitle:#"Draft Saved" message:#"Composed Mail is saved in draft." delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles:nil, nil];
[alert show];
break;
case MFMailComposeResultSent:
alert = [[UIAlertView alloc] initWithTitle:#"Success" message:#"You have successfully referred your friends." delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles:nil, nil];
[alert show];
break;
case MFMailComposeResultFailed:
alert = [[UIAlertView alloc] initWithTitle:#"Failed" message:#"Sorry! Failed to send." delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles:nil, nil];
[alert show];
break;
default:
break;
}
// Close the Mail Interface
[self dismissViewControllerAnimated:YES completion:nil];
}

Answer 2

Remove this line:
[self becomeFirstResponder];
That should fix your problem.

Answer 3

If above solution didn't work for you as it was for me, here, instead of self use instance of MFMailComposeViewController:
Instead Of
[self dismissViewControllerAnimated:YES completion:nil];
Use
[mailComposer dismissViewControllerAnimated:YES completion:nil];