I recently accidentally stepped on my ps2 eye toy in which I was using as a webcam for my desktop. I was annoyed about getting a new one as I have many devices with built-in webcams. Then it clicked why can't I use my phone or tablet's cameras as a webcam. I realized soon that it would have to be low resolution and transmit over IP or blue tooth. In the video I only go over IP camera but there is another application called Smart camera which can go over blue tooth but does not allow you to switch camera's if a device has more than 1 camera.
I am sure there are many ways to do the samething this tutorial only goes over one method.
1. Download IP Cam Adapter http://ip-webcam.appspot.com/ Download IP webcam https://play.google.com/store/apps/details?id=com.pas.webcam&hl=en
2. Install both
3. start both apps up
4.on IP webcam scroll all the way to the bottom and click start server
5.right above the bottom ad on your device there is going to be a IP address and port number you must type that into the Configure IP Cam Adapter application like so http://YourIP address:Your Port Number/videofeed then click apply then click OK
6. Restart any applications that might be trying to use your webcam or start them up7. You should be able to use your webcam now.