android Camera 如何判断当前使用的摄像头是前置还是后置

android.hardware.Camera.CameraInfo info =
            new android.hardware.Camera.CameraInfo();
     android.hardware.Camera.getCameraInfo(cameraId, info);

     if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
        //前置摄像头
     } else {  // 后置摄像头
        
     }