Connect USB camera to Android phone

I need a simple app that has a spinner with build in cameras and my external one, I want to be able switch between cameras and view the cameras output in a SurfaceView. It must be well coded solution for Android Studio, this is the camera to connect http://www.webcamerausb.com/elp-synchronous-usb-stereo-camera-module-double-undistortion-lens-960p-ov9750-usb20-otg-webcam-compatible-with-windows-linux-android-mac-p-285.html