Question

我正在使用Objective-C开发一个iPhone应用程序，我必须通过附加文本文件来发送电子邮件。有人可以帮帮我吗？

Answer 1

嗨，看看这个

MFMailComposeViewController *composer = [[MFMailComposeViewController alloc] init];
composer.mailComposeDelegate = self;
[composer setSubject:@"Subject"];
NSString *fullPath =//get path of the file
NSData *fileData = [NSData dataWithContentsOfFile:fullPath];
[composer addAttachmentData:fileData 
                 mimeType:@"text/plain" 
                 fileName:@"File_Name"];        
NSString *emailBody = [NSString stringWithString:@"Body"];
[composer setMessageBody:emailBody isHTML:YES];

[self presentModalViewController:composer animated:YES];
[composer release];

Answer 2

如果您正在使用邮件编辑器视图控制器：

[mailComposerViewController addAttachmentData:fileData mimeType:@"text/plain" fileName:@"name_of_text_file"];

Answer 3

这是我的应用程序中的一种工作代码。只需跟随即可。文件（文本文件）位于应用程序的文档目录中确保已将MessageUIframework添加到项目中并在您的界面文件

中导入这些内容

#import <MessageUI/MessageUI.h>
#import <MessageUI/MFMailComposeViewController.h>

@interface Your CLass : UIViewController <MFMessageComposeViewControllerDelegate>

<强>代码

Class mailClass = (NSClassFromString(@"MFMailComposeViewController"));
    if ([mailClass canSendMail])
    {
        MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
        picker.mailComposeDelegate = self;

        [picker setSubject:@"Your Subject"];        

        NSFileManager* manager = [[NSFileManager alloc] init]; 
        NSString *documentsDirectory = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];   
        if (![[self NoteFile] isEqualToString:@""]) //check if note is blank
 {
            NSString *NoteFilePath = [documentsDirectory 
                                           stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.txt",[self NoteFileName]]];
            NSData *myNoteData = [NSData dataWithContentsOfFile:NoteFilePath];
            [picker addAttachmentData:myNoteData mimeType:@"text/plain" fileName:@"Name you want to give your file.txt"];
        }

        [manager release];


        // Fill out the email body text
        NSString *emailBody = @"I am attaching my file!";
        [picker setMessageBody:emailBody isHTML:NO];

        [self presentModalViewController:picker animated:YES];


        [picker release];

您可以使用其委托方法

进一步检查邮件状态

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error

如何在iPhone应用程序中附加邮件文本文件？

3 个答案: