Question

当调用操作表上的按钮时，我会调用以下代码。但是当我按下取消，然后删除草稿时，它只是过时而且不会消失。我在我的应用程序的其他地方使用相同的代码，并从一个tableview单元格中调用它，它可以在那里找到它。有什么想法，为什么它不在这里工作？

在冻结时控制台中也没有错误消息。

if([MFMailComposeViewController canSendMail])
{
    MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
    picker.mailComposeDelegate = self;

    [picker setSubject:@"Dr. Chrono Support"];

    NSDictionary* infoDict = [[NSBundle mainBundle] infoDictionary];
    NSString* versionNum = [infoDict objectForKey:@"CFBundleVersion"];
    NSString *appName = [infoDict objectForKey:@"CFBundleDisplayName"];
    NSString *text = [NSString stringWithFormat:@"%@ %@",appName,versionNum];

    // Set up recipients
    NSArray *toRecipients = [NSArray arrayWithObject:@"contact@drchrono.com"]; 
    //NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com", @"third@example.com", nil]; 
    //NSArray *bccRecipients = [NSArray arrayWithObject:@"fourth@example.com"]; 

    [picker setToRecipients:toRecipients];
    //[picker setCcRecipients:ccRecipients];  
    //[picker setBccRecipients:bccRecipients];

    // Attach an image to the email
    //NSString *path = [[NSBundle mainBundle] pathForResource:@"rainy" ofType:@"png"];
    //NSData *myData = [NSData dataWithContentsOfFile:path];
    //[picker addAttachmentData:myData mimeType:@"image/png" fileName:@"rainy"];

    // Fill out the email body text
    NSString *emailBody = text;
    [picker setMessageBody:emailBody isHTML:NO];

    [self presentModalViewController:picker animated:YES];
    [picker release];
}

Answer 1

您需要实现委托方法：

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {

然后在这个委托方法中添加：

[self dismissModalViewControllerAnimated:YES];

它应该工作得很好。

您不必查找结果（仅当您想要显示“谢谢”警告或其他内容时，例如，如果用户确实点击了发送）

Answer 2

使用以下代码

- (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 the next time the user connects to email");
            break;
        case MFMailComposeResultFailed:
            NSLog(@"Mail failed: the email message was nog saved or queued, possibly due to an error");
            break;
        default:
            NSLog(@"Mail not sent");
            break;
    }

    [self dismissModalViewControllerAnimated:YES];
}

MFMailComposeViewController不从视图中删除

2 个答案: