如何在应用程序iOS中发送带附件的电子邮件（文件PDF）？

Question

我有我的应用程序中的按钮，当我打开时，它显示我与attachemnt新的电子邮件。将电子邮件发送到我的电子邮件地址后，我收到了此消息和附件，但附件包含来自我的应用程序的最后一个屏幕。我想用支持文件的附件打开此消息。也许你知道我哪里有错误？

- (IBAction)showEmail:(id)sender { 

NSString *emailTitle = @"elllo"; 

NSString *messageBody = @"Hi ! \n Below I send you "; 

NSArray *toRecipents = [NSArray arrayWithObject:@"m1891@gmail.com"]; 

NSMutableData *pdfData = [NSMutableData data]; 
UIGraphicsBeginPDFContextToData(pdfData, self.view.bounds, nil); 
UIGraphicsBeginPDFPage(); 

[self.view.layer renderInContext:UIGraphicsGetCurrentContext()]; 

UIGraphicsEndPDFContext(); 
MFMailComposeViewController *mc = [[MFMailComposeViewController alloc] init]; 

mc.mailComposeDelegate = self; 

[mc setSubject:emailTitle]; 
[mc setMessageBody:messageBody isHTML:NO]; 
[mc addAttachmentData:pdfData mimeType:@"application/pdf" fileName:@"MV.pdf"]; 
[mc setToRecipients:toRecipents]; 

[self presentViewController:mc animated:YES completion:NULL]; 

}

Answer 1

下面它的正确sollution：

- (IBAction)showEmail:(id)sender { 

    NSString *emailTitle = @"elllo"; 

    NSString *messageBody = @"Hi ! \n Below I send you "; 

    NSArray *toRecipents = [NSArray arrayWithObject:@"m1891@gmail.com"]; 

    NSString *path = [[NSBundle mainBundle] pathForResource:@"MV" ofType:@"pdf"]; NSData *myData 
= [NSData dataWithContentsOfFile: path]; 

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

    mc.mailComposeDelegate = self; 
    [mc setSubject:emailTitle]; 
    [mc setMessageBody:messageBody isHTML:NO]; 
    [mc addAttachmentData:myData mimeType:@"application/pdf" fileName:@"MV.pdf"]; 

    [mc setToRecipients:toRecipents]; 

    [self presentViewController:mc animated:YES completion:NULL]; 

}