Material design Spinner using TextInputLayout.OutlinedBox styling

Question

I am currently using Material Design TextInputLayout OutlinedBox as shown below:

Answer 1

It seems like they actually use a TextInputLayout wrapping up an AutoCompleteTextView. Note that they are already the material Components theme [https://github.com/material-components/material-components-android/blob/master/docs/getting-started.md].

See: https://material.io/design/components/menus.html#exposed-dropdown-menu https://material.io/develop/android/components/menu/