不能在iPhone中关闭电子邮件作曲家视图？ [英] Can't dismiss the email composer view in iPhone?

问题描述

我开始使用iphone开发。我已经创建了一个基于Tabbar的应用程序。在第一个我想要显示电子邮件作曲家。我可以显示它，但取消和发送按钮不工作，我不知道我在哪里错了。请帮助我。这是我的代码。

   - （void）viewDidLoad 
 {
 [super viewDidLoad]; 
 [self displayComposerSheet]; 
} 
 
  - （void）displayComposerSheet 
 {
 picker = [[MFMailComposeViewController alloc] init]; 
 
 [[选择器导航栏] setTintColor：[UIColor blackColor]]; 
 
 picker.mailComposeDelegate = self; 
 
 if（[MFMailComposeViewController canSendMail]）
 {
 
 [选择器setToRecipients：[NSArray arrayWithObjects：@[e-mail]，nil]]; 
 
 [picker setSubject：@Sample]; 
 
} 
 [self.view addSubview：picker.view]; 
 [self presentModalViewController：picker animated：YES]; $（$）
 
  - （void）mailComposeController :( MFMailComposeViewController *）控制器didFinishWithResult：（MFMailComposeResult）结果错误：（NSError *）错误
 {
 
 [self dismissModalViewControllerAnimated：YES]; 
 
} 
  

解决方案

只添加mailcomposser的子视图，您必须从self.view中删除它，
在您的代码中，您正在添加子视图并显示，

如果您使用只能使用 [self.view addSubview：picker.view]; than
尝试删除它。

< （void）mailComposeController：（MFMailComposeViewController *）控件didFinishWithResult :( MFMailComposeResult）结果错误：（NSError *）错误
{
[controller.view removeFromSuperview] ;

}

我仍然建议使用

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

并使用 [self dismissModalViewControllerAnimated：YES]; 关闭它。

I am new to iphone development.I have created a tabbar based application . In the first i want the email composer to be displayed. I am able to display it but the cancel and send button are not working,I don't know where do i go wrong .Please help me out. Here is my code.

- (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:@"[e-mail]",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];

 }

解决方案

If you are adding only subview of mailcomposser you have to remove it from self.view, In your code you are adding subview and present also,

If you are use only use [self.view addSubview:picker.view]; than Try with to remove it.

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

 }

I'm still suggest to use

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

and use [self dismissModalViewControllerAnimated:YES]; to dismiss it.

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