The method that we are going to discuss right here is very simple and will work with a cool android app that will let you to add these three buttons on your android bottom touch screen that makes your user interface experience more flexible and reliable as hard buttons can get stop working but these will not. So follow up the steps below.
Steps To Add Home/Back Soft Button Keys In Your Android
First of all you need to download and install the cool android app that is Back Button
Now after installing in your device launch it and you will see a popup appears asking you to enable the app in accessibility.
Simply follow it and enable the app in accessibility by heading towards Settings –> Accessibility –> Back button.
There you need to swipe to right at the above button to enable this app in your device.
Now after this come back to the back button app and there you need to activate the active option and then activate the buttons that you want to be there in your android touch screen.
Now you will instantly see these buttons on your screen, now you can easily re-position these button by simply tapping on them, also you can resize them and customize them completely according to your wish.