Material-components-android: [TextInputLayout] Expose `floating label` background

[sabinebarrera]

The floating label background becomes a problem when you are using a different background in your container. I should be able to set the floating label background="@null" assuming that the outline box won't be visible under the label.

Impl Screen

Design Screen

Or Am I missing something?

[thevoiceless]

+1

Trying to do the same. This comment on a different issue might be an okay workaround, but doesn't achieve exactly the look we're going for.

[gabrielemariotti]

The submitted PR doesn't expose the collapsed hint background.
However it allows to achieve an empty background as shown in desired solution.