MFMailComposeViewController不从视图中删除

Question

我有以下代码,当调用操作表上的按钮时调用该代码.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.任何想法为什么它不在这里工作？

当冻结时控制台中的Therg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(仅当您要显示"谢谢"警报或其他内容时,例如,如果用户确实点击了发送)