This commit:
- Moves the draw calls in TextInputLayout#draw to happen in a better order: now, the background is drawn first, then TextInputLayout and its children, then the hint. This prevents the box from drawing on top of other text field elements.
- Updates box background setters and getters to modify boxBackgroundColor instead of defaultBoxBackgroundColor.
- Adds a demo for filled box background color changes to the text field demo.
PiperOrigin-RevId: 196748102
Change attributes, setters, getters, resources, and tests for corner radii and box padding to use start/end instead of left/right. The goal is to make TextInputLayout more RTL friendly; beforehand, RTL use cases would have to directly call padding and corner radii methods with RTL values. After this change, TextInputLayout will determine whether it is in RTL mode and apply the relevant attributes appropriately.
PiperOrigin-RevId: 193565849
