The most direct way to use a touchscreen is obviously touching it, but it's not something that everyone can do.The wide accessibility tools of Android can in fact help surf the phone only with the eyes and facial expressions.
Using your own item by interacting with a virtual assistant can be important, but it is also possible to use the eyes and face with a tool called "Switch Access", which allows you to interact with an Android device using one or more sensors instead of touchscreen.
This is all you need to choose the gestural commands of the face.During the first test you will notice a face at the top of the screen.It is red when your face is not detected, blue when it is.Look at the screen and try the gestures you saved.
The gesture you have assigned to "Next" can be used to navigate along the screen.Whenever you do this gesture, the device will highlight the subsequent selectable element.
When you want to select that element, you will have to use the facial command you have assigned to the "Select" action.
Android boasts an extremely useful and powerful set of tools with various possibilities of use.This is just a small part.