getDisabledTextColor method Null safety
- MaterialButton button
The foreground color of the button's text and icon when
MaterialButton.onPressed is null (when MaterialButton.enabled is false).
Returns the button's MaterialButton.disabledColor if it is non-null. Otherwise the color scheme's ColorScheme.onSurface color is returned with its opacity set to 0.38.
If MaterialButton.textColor is a MaterialStateProperty<Color>, it will be
used as the disabledTextColor. It will be resolved in the MaterialState.disabled state.
Implementation
Color getDisabledTextColor(MaterialButton button) {
return button.textColor ?? button.disabledTextColor ?? colorScheme!.onSurface.withOpacity(0.38);
}