文章目錄

升級 Mac 到 10.14 後執行專案提示：

 This app has crashed because it attempted to access privacy-sensitive data without a usage description.  The app's Info.plist must contain an NSMicrophoneUsageDescription key with a string value explaining to the user how the app uses this data.

需要在 Info.plist 中新增 NSMicrophoneUsageDescription 這個鍵和對應的描述，和 iOS 申請攝像頭許可權很像了。
這是因為 macOS 10.14 對隱私控制的更嚴格了，詳情可參考 wwdc :

那麼設定 info.plist 之外，我們還需要檢測 麥克風許可權是否呼叫。

- (BOOL)isValidToVisitMicroPhone{
    
    NSString *version = [SystemTools getSystemVersion];
    
    if (version.floatValue < 10.14) {
        return YES;
    }
    
    NSArray *videoDevices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeAudio];
//    NSLog(@"videoDevices : %@",videoDevices);
    
    __block BOOL bCanRecord = YES;
    
    AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio];
    NSLog(@"status : %d",status);
    
    switch (status) {
        case AVAuthorizationStatusNotDetermined:{
            
            // 許可對話沒有出現，發起授權許可
            [AVCaptureDevice requestAccessForMediaType:AVMediaTypeAudio completionHandler:^(BOOL granted) {
                if (granted) {
                    //第一次使用者接受
                    NSLog(@"-- granted");
                 
                }else{
                    //使用者拒絕
                    NSLog(@"-- not granted");
                }
            }];
            break;
        }
            
        case AVAuthorizationStatusAuthorized:{
            // 已經開啟授權，可繼續
            NSLog(@"-- Authorized");
            bCanRecord = YES;
            break;
        }
        case AVAuthorizationStatusDenied:{
            NSLog(@"-- Denied");
            bCanRecord = NO;
            break;
        }
        case AVAuthorizationStatusRestricted:{
            NSLog(@"-- Restricted");
            bCanRecord = NO;
            break;
        }
            
        default:
            break;
    }
 
    return bCanRecord;
}
 

如果沒呼叫，可以跳轉到 隱私面板

- (void)openSetting{
    NSString *urlString = @"x-apple.systempreferences:com.apple.preference.security?Privacy_Microphone";
    [[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:urlString]];
}