how to get camera frame whitout showing it on activity windows

Hi, So a got a problem with the use of "implements CvCameraViewListener2". If anderstoud that we need to setContentView of the activity if not we cannot get the frame on onCameraFrame. My probleme is that i do not want the camera frame to be showed on the activity view. I just wnat to get the frame to show it in other View. So i try to set the setVisibility to INVISIBLE. But i cannot get the frame anaymore on onCameraFrame. How can i retreive the frame without using showing it on activity ? Sorry for my english.