public override void ResumeAnalysis()
 {
     ZxingActivity.RequestResumeAnalysis();
 }
 public override void PauseAnalysis()
 {
     ZxingActivity.RequestPauseAnalysis();
 }
 public override void AutoFocus()
 {
     ZxingActivity.RequestAutoFocus();
 }
 public override void Torch(bool on)
 {
     torch = on;
     ZxingActivity.RequestTorch(on);
 }
 public override void Cancel()
 {
     ZxingActivity.RequestCancel();
 }