Apps Capture Front Camera and Show in imageview.

[Forgivee]

Hi,
I want to capture front camera of device and show front camera in imageview (REAL TIME). How can I do this?
Are there any library to do this?

I researched some libraries but they are about taking a photo in all screen. I do not want like these. Just get front camera and show in it small imageview in real time.

Thanks.