有没有办法禁用 iPhone 的录音功能？

Question

我正在为 iPhone 制作 VoIP 应用程序。出于安全原因，必须禁止任何形式的录音。可以这样做吗？如果可以的话，该怎么办呢？多谢！

编辑：该应用程序不适用于越狱的 iPhone。但是，私有框架是允许的。

Answer 1

在您的 .h 文件中 -

#import <AVFoundation/AVFoundation.h>

@interface recordViewController : UIViewController
        <AVAudioRecorderDelegate, AVAudioPlayerDelegate>
{
    AVAudioRecorder *audioRecorder;
    UIButton *playButton;
    UIButton *recordButton;
    UIButton *stopButton;
}
@property (nonatomic, retain) IBOutlet UIButton *playButton;
@property (nonatomic, retain) IBOutlet UIButton *recordButton;
@property (nonatomic, retain) IBOutlet UIButton *stopButton;

在您的 .m 文件中 -

- (void)viewDidLoad {
   [super viewDidLoad];
   playButton.enabled = NO;
   stopButton.enabled = NO;

   NSArray *dirPaths;
   NSString *docsDir;

   dirPaths = NSSearchPathForDirectoriesInDomains(
        NSDocumentDirectory, NSUserDomainMask, YES);
   docsDir = [dirPaths objectAtIndex:0];
   NSString *soundFilePath = [docsDir
       stringByAppendingPathComponent:@"sound.caf"];

   NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath];

   NSDictionary *recordSettings = [NSDictionary 
            dictionaryWithObjectsAndKeys:
            [NSNumber numberWithInt:AVAudioQualityMin],
            AVEncoderAudioQualityKey,
            [NSNumber numberWithInt:16], 
            AVEncoderBitRateKey,
            [NSNumber numberWithInt: 2], 
            AVNumberOfChannelsKey,
            [NSNumber numberWithFloat:44100.0], 
            AVSampleRateKey,
            nil];

  NSError *error = nil;

  audioRecorder = [[AVAudioRecorder alloc]
                  initWithURL:soundFileURL
                  settings:recordSettings
                  error:&error];
  [audioRecorder stop];
}

最后一行 [audioRecorder stop] 将确保音频录制停止。你可以做一些类似于你的应用程序的事情..