- The icon's `contentDescription` is used as the tooltip text.
- Tooltips are only shown for icons that are interactive (focusable). Decorative-only icons will not display a tooltip.
- `CheckableImageButton` is updated to provide a callback for when its focusable state changes, which is used to trigger tooltip updates.
- API-level differences are handled to ensure that custom `OnLongClickListeners` are not overridden by the tooltip's long-press listener on older platforms (pre-API 26).
PiperOrigin-RevId: 794951524
Non clickable ImageViews inherit pressed state of parent views, so icons appeared as pressed even if they were not clickable/focusable.
PiperOrigin-RevId: 278381886
Also updating clear text end icon to be not checkable, so that screen readers don't announce the icon's checked state as it's not relevant (differently from the password toggle icon, for example).
PiperOrigin-RevId: 259532643
