maybeBrightnessOf static method
- BuildContext context
Retrieves the Brightness to use for descendant Material widgets, based
on the value of ThemeData.brightness in the given context.
If no InheritedTheme or MediaQuery can be found in the given context, it will
return null.
See also:
- ThemeData.brightness, the property that takes precedence over MediaQueryData.platformBrightness for descendant Material widgets.
- brightnessOf, which return a default value if no valid InheritedTheme or MediaQuery exists, instead of returning null.
Implementation
static Brightness? maybeBrightnessOf(BuildContext context) {
final _InheritedTheme? inheritedTheme =
context.dependOnInheritedWidgetOfExactType<_InheritedTheme>();
return inheritedTheme?.theme.data.brightness ?? MediaQuery.maybePlatformBrightnessOf(context);
}