brightness property Null safety

Brightness? brightness
@Deprecated('This property is no longer used, please use systemOverlayStyle instead. ' 'This feature was deprecated after v2.4.0-0.0.pre.'), final

This property is deprecated, please use systemOverlayStyle instead.

Determines the brightness of the SystemUiOverlayStyle: for Brightness.dark, SystemUiOverlayStyle.light is used and fo Brightness.light, SystemUiOverlayStyle.dark is used.

If this value is null then AppBarTheme.brightness is used and if that's null then overall theme's brightness is used.

The AppBar is built within a AnnotatedRegion<SystemUiOverlayStyle> which causes SystemChrome.setSystemUIOverlayStyle to be called automatically. Apps should not enclose the AppBar with their own AnnotatedRegion.

See also:

Implementation

@Deprecated(
  'This property is no longer used, please use systemOverlayStyle instead. '
  'This feature was deprecated after v2.4.0-0.0.pre.',
)
final Brightness? brightness;