title: how to customize toggle button in flutter
body: <p>I'm new to flutter and I need to customize a toggle button as shown below, can anyone help me with that, I used stack and positioned with two buttons overlaping but when they will change the mobile display changes, so any one please help me on this. <a href="https://i.stack.imgur.com/RA40T.png" rel="nofollow noreferrer">Image</a></p>