Question

我是iphone开发的新手。我创建了一个基于tabbar的应用程序。在第一个我想要显示电子邮件作曲家。我能够显示它，但取消和发送按钮不起作用，我不知道我哪里出错了。请帮帮我。这是我的代码。

- (void)viewDidLoad 
{
    [super viewDidLoad];
    [self displayComposerSheet];    
}

-(void)displayComposerSheet 
{
    picker = [[MFMailComposeViewController alloc] init];

   [[picker navigationBar] setTintColor:[UIColor blackColor]];

   picker.mailComposeDelegate = self;

   if ([MFMailComposeViewController canSendMail]) 
   {

            [picker setToRecipients:[NSArray arrayWithObjects:@"name@gmail.com",nil]];

            [picker setSubject:@"Sample"];

   }
   [self.view addSubview:picker.view];
   [self presentModalViewController:picker animated:YES];

}

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

    [self dismissModalViewControllerAnimated:YES];

 }

Answer 1

您正在两次展示邮件作曲家。

删除该行：

[self.view addSubview:picker.view];

用以下代码替换下一行：

[self.navigationController presentModalViewController:picker animated:YES];

Answer 2

如果您只添加mailcomposser的子视图，则必须将其从self.view中删除，在您的代码中，您还要添加子视图并显示

如果您只使用[self.view addSubview:picker.view]; 尝试删除它。

 - (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error 
{
    [controller.view removeFromSuperview];

 }

我仍然建议使用

当前MFMailComposeViewController

[self.navigationController presentModalViewController:picker animated:YES];，

并使用[self dismissModalViewControllerAnimated:YES];将其解雇。

Answer 3

设置MFMailComposeViewController的委托

MFMailComposeViewController *mailcomposer = [[MFMailComposeViewController alloc]init];

mailcomposer.mailComposeDelegate = self;

并使用此委派方法

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

Answer 4

使用此代码：

MFMailComposeViewController *controller = [[MFMailComposeViewController alloc] init];
controller.mailComposeDelegate = self;
NSArray *toRecipients = [NSArray arrayWithObjects:@"niftyapplications@gmail.com", @"support@niftysol.com", nil]; 
[controller setToRecipients:toRecipients];
[controller setTitle:@"Contact Us"];
controller.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentModalViewController:controller animated:YES];


- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error 
{
     [self becomeFirstResponder];
     NSString *strMailResult;
     switch (result)
     {
        case MFMailComposeResultCancelled:
        strMailResult = NSLocalizedString(@"E-Mail Cancelled",@"");
        break;
        case MFMailComposeResultSaved:
        strMailResult = NSLocalizedString(@"E-Mail Saved",@"");
        break;
        case MFMailComposeResultSent:
        strMailResult = NSLocalizedString(@"E-Mail Sent",@"");
        break;
        case MFMailComposeResultFailed:
        strMailResult = NSLocalizedString(@"E-Mail Failed",@"");
        break;
        default:
        strMailResult = NSLocalizedString(@"E-Mail Not Sent",@"");
        break;
     }

     UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"ISO Audit",@"") message:strMailResult delegate:self  cancelButtonTitle:NSLocalizedString(@"OK",@"") otherButtonTitles:nil];
     [alertView show];
    [self dismissModalViewControllerAnimated:YES];
}

无法解除iPhone中的电子邮件作曲家视图？

4 个答案: