ActionButton(imageDrawable: Drawable? = null, contentDescription: String, visible: () -> Boolean = { true }, background: Int = 0, padding: Padding? = null, listener: () -> Unit)
An action button to be added to the toolbar.
imageDrawable - The drawable to be shown.
contentDescription - The content description to use.
visible - Lambda that returns true or false to indicate whether this button should be shown.
padding - A optional custom padding.
listener - Callback that will be invoked whenever the button is pressed