MFMailComposeViewController不會解僱

Question

在按照教程向我展示瞭如何實現應用內郵件後，它似乎在取消按鈕和發送按鈕關閉視圖時失敗。

現在我已經看過，說我應該實現此方法，在這裏談幾點看法：

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

但是，這並不解決問題，而不是在模擬器或在我的iPhone 4 - 該消息未得到雖然發送，但該觀點並沒有消除。

這是我到目前爲止的代碼：

#pragma mark - InApp Mail 
- (IBAction)openMail:(id)sender 
{ 
if ([MFMailComposeViewController canSendMail]) 
{ 
    MFMailComposeViewController *mailer = [[MFMailComposeViewController alloc] init]; 


    [mailer setSubject:@"iOS School - MultipleAlertViews"]; 

    NSArray *toRecipients = [NSArray arrayWithObjects:@"", nil]; 
    [mailer setToRecipients:toRecipients]; 

    // Attach an image to the email 
    NSString *pathFile01 = @"http://dl.dropbox.com/u/61711378/iOS%20School%20-%20Docs/MultipleAlertViewsVCh.pdf"; 
    NSURL *pdfURLFile01 = [NSURL URLWithString:pathFile01]; 
    NSData *pdfDataFile01 = [NSData dataWithContentsOfURL:pdfURLFile01]; 
    [mailer addAttachmentData:pdfDataFile01 mimeType:@"application/pdf" fileName:@"MultipleAlertViewsVCh.pdf"]; 

    NSString *pathFile02 = @"http://dl.dropbox.com/u/61711378/iOS%20School%20-%20Docs/MultipleAlertViewsVCm.pdf"; 
    NSURL *pdfURLFile02 = [NSURL URLWithString:pathFile02]; 
    NSData *pdfDataFile02 = [NSData dataWithContentsOfURL:pdfURLFile02]; 
    [mailer addAttachmentData:pdfDataFile02 mimeType:@"application/pdf" fileName:@"MultipleAlertViewsVCm.pdf"]; 


    NSString *emailBody = 
    @"Hello,<br/><br/>You requested code for this project, which you can now use in XCode <br/><br/> You will find 2 Attachements.<br/>One is the Header file and the other is the Implementation file.<br/><br/>Thank you for using this app, if you find it useful, don't forget to give it a Rating in the App Store.<br/><br/>Kind Regards,<br/>iOS School"; 


    [mailer setMessageBody:emailBody isHTML:YES]; 

    [self presentModalViewController:mailer animated:YES]; 
} 
else 
{ 
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Failure" 
                message:@"Your device doesn't support the composer sheet" 
                delegate:nil 
              cancelButtonTitle:@"OK" 
              otherButtonTitles:nil]; 
    [alert show]; 
} 
} 

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error 
{ 
switch (result) 
{ 
    case MFMailComposeResultCancelled: 
     NSLog(@"Mail cancelled: you cancelled the operation and no email message was queued."); 
     break; 
    case MFMailComposeResultSaved: 
     NSLog(@"Mail saved: you saved the email message in the drafts folder."); 
     break; 
    case MFMailComposeResultSent: 
     NSLog(@"Mail send: the email message is queued in the outbox. It is ready to send."); 
     break; 
    case MFMailComposeResultFailed: 
     NSLog(@"Mail failed: the email message was not saved or queued, possibly due to an error."); 
     break; 
    default: 
     NSLog(@"Mail not sent."); 
     break; 
} 

// Remove the mail view 
[self dismissModalViewControllerAnimated:YES]; 
} 

正如你所看到的，我已經實施了 - (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error

但它無法正常工作 - 別的我失蹤 - 我使用的是iOS 5.1

乾杯傑夫

Answer 1

你已經實現了委託方法，但都沒有設置委託：

mailer.mailComposeDelegate = self; 

在創建mailer後。