带有导出/电子邮件的iPhone音频记录

Question

我搜遍了所有Apples网站和互联网以及Stackoverflow。有没有人有任何示例代码或教程如何从内置麦克风录制音频，然后通过电子邮件导出该音频？请，我真的需要它为我的应用程序。感谢。

Answer 1

我使用Apple的SpeakHere示例应用程序中的代码将内置麦克风的声音录制到wav文件“recordedFile.wav”，然后将以下方法添加到视图控制器，以将wav文件作为附件发送电子邮件：

- (void)mailComposeController:(MFMailComposeViewController*)controller
          didFinishWithResult:(MFMailComposeResult)result
                        error:(NSError*)error {
        [self becomeFirstResponder];
        [self dismissModalViewControllerAnimated:YES];
}

- (void)mailAttachedWavFile {
        MFMailComposeViewController *picker = 
          [[MFMailComposeViewController alloc] init];
        picker.mailComposeDelegate = self;
        [picker setSubject:@"My Wav File"];  // optional
        NSString *fileName = @"recordedFile.wav";  // whatever
        NSArray  *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
                                                              NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];
        NSString *path = [documentsDirectory stringByAppendingPathComponent:fileName];
        NSData   *data = [NSData dataWithContentsOfFile:path];
        [picker addAttachmentData:data mimeType:@"audio/x-wav"
                                       fileName:fileName];
        NSString *emailBody = @"Wav format sound file attached.";  // optional
        [picker setMessageBody:emailBody isHTML:YES];
        [self presentModalViewController:picker animated:YES];
        [picker release];
}

您可以通过按钮将mailAttachedWavFile方法设为IBOutlet。不要忘记将控制器声明为头文件中的MFMailComposeViewControllerDelegate。