platformBrightness property Null safety
The setting indicating the current brightness mode of the host platform.
Accessing this value returns the value contained in the
PlatformDispatcher singleton, so instead of getting it from here, you
should consider getting it from WidgetsBinding.instance.platformDispatcher instead
(or, when WidgetsBinding isn't available, from
PlatformDispatcher.instance). The reason this value forwards to the
PlatformDispatcher is to provide convenience for applications that only
use a single main window.
If the platform has no preference, platformBrightness defaults to Brightness.light.
Implementation
Brightness get platformBrightness => platformDispatcher.platformBrightness;