将.txt附加到MFMailComposeViewController [英] Attaching .txt to MFMailComposeViewController

问题描述

我有一个存储在Documents Folder中的.txt文件，我希望通过MFMailComposeViewController将其发送给 -sendEmail 方法体中的下一个代码：

I have a .txt file stored in Documents Folder and I want to send it by MFMailComposeViewController with next code in the body of -sendEmail method:

NSData *txtData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"dataBase" ofType:@"txt"]];
        [mail addAttachmentData:txtData mimeType:@"text/plain" fileName:[NSString stringWithFormat:@"dataBase.txt"]];

当邮件编辑器出现时，我可以在邮件正文中看到附件，但是我收到这封邮件而没有附件。也许它是.txt附件的MIME类型错误或此代码有问题？

When Mail composer appears I can see attachment in the mail body but I receive this mail without attachment. Maybe it is wrong MIME-type for .txt attachment or something wrong with this code?

谢谢

推荐答案

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];        
        NSString *txtFilePath = [documentsDirectory stringByAppendingPathComponent:@"abc.txt"];
NSData *noteData = [NSData dataWithContentsOfFile:txtFilePath];
        MFMailComposeViewController *_mailController = [[MFMailComposeViewController alloc] init];
        [_mailController setSubject:[NSString stringWithFormat:@"ABC"]];
        [_mailController setMessageBody:_messageBody
                                 isHTML:NO];
        [_mailController setMailComposeDelegate:self];
        [_mailController addAttachmentData:noteData mimeType:@"text/plain" fileName:@"abc.txt"];

希望有所帮助。

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