iPhone 录音并导出/通过电子邮件发送

Question

我搜索了苹果网站、互联网以及 Stackoverflow。有谁有任何示例代码或教程，说明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？拜托，我的应用程序确实需要它。谢谢。

Answer 1

我使用 Apple 的 SpeakHere 示例应用程序中的代码将声音从内置麦克风录制到 wav 文件“recordedFile.wav”，然后将以下方法添加到视图控制器以通过电子邮件将 wav 文件作为附件发送

- (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];
}

：从按钮获取 IBOutlet 方法。不要忘记在头文件中将控制器声明为 MFMailComposeViewControllerDelegate。