How to implement an home screen icon behaving as button in android? -

I am thinking for some and do not know how it is possible that this idea is there.

I want to create an icon on the home screen and when the user clicks on the icon light on it (the app is showing on) otherwise it is not.

Is any weather possible if yes, if yes! So how to implement it.

Thank you in advance.

Write applies your desired UI and functionality.