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我的 NSMutableArray 数据采用 NSData 格式。我正在尝试将 NSMutableArray 数据附加到电子邮件正文。这是我的 NSMutableArray 代码：

   NSUserDefaults *defaults1 = [NSUserDefaults standardUserDefaults];
   NSString *msg1 = [defaults1 objectForKey:@"key5"];
   NSData *colorData = [defaults1 objectForKey:@"key6"];
   UIColor *color = [NSKeyedUnarchiver unarchiveObjectWithData:colorData];
   NSData *colorData1 = [defaults1 objectForKey:@"key7"];
   UIColor *color1 = [NSKeyedUnarchiver unarchiveObjectWithData:colorData1];
   NSData *colorData2 = [defaults1 objectForKey:@"key8"];
   UIFont *color2 = [NSKeyedUnarchiver unarchiveObjectWithData:colorData2];
   CGFloat x =(arc4random()%100)+100;
   CGFloat y =(arc4random()%100)+250;  
   lbl = [[UILabel alloc] initWithFrame:CGRectMake(x, y, 100, 70)];
   lbl.userInteractionEnabled=YES;
   lbl.text=msg1;
   lbl.backgroundColor=color;
   lbl.textColor=color1;
   lbl.font =color2;
   lbl.lineBreakMode = UILineBreakModeWordWrap;
   lbl.numberOfLines = 50;
   [self.view addSubview:lbl];
   [viewArray addObject:lbl ];

viewArray 是我的 NSMutableArray。viewArray 中的所有数据存储都在 NSData 格式中。那么如何将这个 viewArray 数据附加到电子邮件正文中。这是我的电子邮件代码。

 - (IBAction)sendEmail
{

if ([MFMailComposeViewController canSendMail])
{
  NSArray *recipients = [NSArray arrayWithObject:@"example@yahoo.com"];
  MFMailComposeViewController *controller = [[MFMailComposeViewController alloc] 
  init];
  controller.mailComposeDelegate = self;
  [controller setSubject:@"Iphone Game"];

   NSData *data = [NSKeyedArchiver archivedDataWithRootObject:viewArray];
   NSLog(@"testing: %@", data);
  [controller addAttachmentData:data mimeType:@"application/octet-stream";  
  fileName:nil]; 

  NSString *emailBody = @"Happy Valentine Day!";
  [controller setMessageBody:emailBody isHTML:NO
  [controller setToRecipients:recipients];
  [self presentModalViewController:controller animated:YES];
  [controller release];

  }
 else 
 {
  UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Alert"
   message:@"Your device is not set up for email." 
                                           delegate:self 
                                  cancelButtonTitle:@"OK" 
                                  otherButtonTitles: nil];

 [alert show];

 [alert release];
}

 }

我得到 NO Error .viewArray 在这里显示存储在其中的对象，当我将 viewArray 转换为 NSData 时，它在控制台中显示字节。但不在电子邮件正文中显示任何数据..在 viewArray 中。请任何一个指南我怎么可能用电子邮件附加我的 viewArray 数据。

4

1 回答 1

4

从MFMailComposeViewControlleraddAttachmentData:mimeType:fileName:参考：

文件名

与数据关联的首选文件名。这是将文件传输到其目的地时应用到文件的默认名称。文件名中的任何路径分隔符 (/) 字符在传输之前都将转换为下划线 (_) 字符。此参数不得为 nil。

因此，您似乎必须指定要在邮件正文中显示的正确文件名。任何字符串都可以。

编辑：

恐怕我无法理解您的评论......正如我所说，我已经成功发送了一封包含您的代码的电子邮件：我得到的是一个 plist 文件，所以一切都按预期工作。这是我正在使用的代码：

NSUserDefaults *defaults1 = [NSUserDefaults standardUserDefaults];
NSString *msg1 = [defaults1 objectForKey:@"key5"];
UIColor *color = [UIColor grayColor];
UIColor *color1 = [UIColor grayColor];
UIFont *color2 = [UIFont systemFontOfSize:12];
CGFloat x =(arc4random()%100)+100;
CGFloat y =(arc4random()%100)+250;  
UILabel* lbl = [[UILabel alloc] initWithFrame:CGRectMake(x, y, 100, 70)];
lbl.userInteractionEnabled=YES;
lbl.text=msg1;
lbl.backgroundColor=color;
lbl.textColor=color1;
lbl.font =color2;
lbl.lineBreakMode = UILineBreakModeWordWrap;
lbl.numberOfLines = 50;
[self.view addSubview:lbl];
NSMutableArray* viewArray = [NSMutableArray arrayWithCapacity:1];
[viewArray addObject:lbl ];


if ([MFMailComposeViewController canSendMail]) {
    MFMailComposeViewController *mailer = [[MFMailComposeViewController alloc] init];
    mailer.mailComposeDelegate = self;
    [mailer setSubject:@"Hello"];
    [mailer setToRecipients:[NSArray arrayWithObjects:@"mailAddress@mailAddress", nil]];
    NSString *emailBody = @"";
    [mailer setMessageBody:emailBody isHTML:NO];

    NSData *data = [NSKeyedArchiver archivedDataWithRootObject:viewArray];
    [mailer addAttachmentData:data mimeType:@"application/octet-stream" fileName:@"prova.plist"]; 

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

在你的情况下，我会走的路是：

  1. 暂时忘记附件，尝试给您发送一封简单的文本电子邮件；

  2. 如果可行，请添加发送附件的 2 行：

    NSData *data = [NSKeyedArchiver archivedDataWithRootObject:viewArray];
[mailer addAttachmentData:data mimeType:@"application/octet-stream" fileName:@"prova.plist"];

在这两种情况下，在您的委托方法中设置断点- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error并查看执行了哪个分支：

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
switch (result) {
        case MFMailComposeResultCancelled:
        case MFMailComposeResultSaved:
        case MFMailComposeResultSent:
        case MFMailComposeResultFailed:
        default:
        break;
    }
[self dismissModalViewControllerAnimated:YES];
}
于 2012-05-07T19:28:53.840 回答