Question

我的NSMutableArray数据在NSData格式中。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。然后如何附加此viewArray数据与电子邮件正文。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console中显示字节。但是不显示电子邮件正文中的任何数据..这是在viewArray.please中Any One指导我如何通过电子邮件附加我的viewArray数据。

Answer 1

来自addAttachmentData:mimeType:fileName:的{{3}}：

文件名

与数据关联的首选文件名。这是传输到目标时应用于文件的默认名称。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。此参数不得为零。

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：

我恐怕无法理解你的评论...正如我所说，我已经成功发送了一封包含你的代码的电子邮件：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];
}

在我的情况下，我的方式是：

暂时忘记附件，并尝试向您发送简单的短信;

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，在委托方法- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error中设置断点并查看执行的分支：

- (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];
}

NSMutableArray与电子邮件正文的数据附件？

1 个答案: