Question

我正在尝试从iOS应用程序附加一个wav文件，但即使它在组合邮件中可见，也不会传递附件。

见下相关代码：

if ([MFMailComposeViewController canSendMail]) {
    MFMailComposeViewController* controller = [[MFMailComposeViewController alloc] init];
    controller.mailComposeDelegate = self;
    [controller setSubject:NSLocalizedString(@"mailTopic", nil)];
    [controller setMessageBody:NSLocalizedString(@"mailBody", nil) isHTML:YES];
    NSString *wavPath = [self exportAssetAsWaveFormat:self.myRec.soundFilePath]; // CAF->Wav export

    if (wavPath != nil) {
        NSLog(@"wavPath: %@", wavPath);
        NSData *recData = [NSData dataWithContentsOfFile:wavPath];
        NSString *mime = [self giveMimeForPath:wavPath];
        [controller addAttachmentData:recData mimeType:mime fileName:@"MySound.wav"];
        [self presentModalViewController:controller animated:YES];
        [controller release];
    }
}


-(NSString *) giveMimeForPath:(NSString *)filePath {
    NSURL* fileUrl = [NSURL fileURLWithPath:filePath];
    NSURLRequest* fileUrlRequest = [[NSURLRequest alloc] initWithURL:fileUrl cachePolicy:NSURLCacheStorageNotAllowed timeoutInterval:.1];
    NSURLResponse* response = nil;

    [NSURLConnection sendSynchronousRequest:fileUrlRequest returningResponse:&response  error:nil];
    NSString* mimeType = [response MIMEType];
    NSLog(@"MIME: %@", mimeType);
    [fileUrlRequest release];

    return mimeType;
}

NSLog结果：

NSLog（@“wavPath：％@”，wavPath）; - ＆GT; “wavPath：/var/mobile/Applications/71256DCA-9007-4697-957E-AEAE827FD97F/Documents/MySound.wav”

NSLog（@“MIME：％@”，mimeType）; - ＆GT; “MIME：audio / wav”

文件路径接缝正常（参见NSLog数据），mime类型设置为“audio / wav”..无法解决这个问题..

Answer 1

错误是当我创建NSData时，wav文件不是100％写的.. duuuh

感谢你们的努力

Answer 2

也许目的地正在剥离那种类型的附件？您是否尝试手动发送带有.wav的消息并查看它是否有效？尝试发送给Zendesk时遇到了同样的问题。事实证明他们剥离了一些mimetypes的附件。

目标C - 通过MFMailComposeViewController显示的附件

2 个答案: