Question

where should I get clip icon​

Answer 1

Explanation:

Well, that is a wide question. But here goes my opinion for you to implement it fast.

Add options menu to your application. (3 vertical dots at the corner)

Create a fragment/pop-up/menu with your custom layout(icons, buttons etc...) that starts from #1

Add necessary methods to each button/icon.

OR

Create a button and put it into your app's ToolBar yourself.

Open a fragment/pop-up from onClick of that button.

Add necessary methods to each button/icon on that fragment/pop-up

Hopefully these line of thought helps. You can search for each step online.