maybeOf static method

double? maybeOf(
  1. BuildContext context
)

Returns the height of the app bar if it exists, otherwise returns null.

The returned height already includes the status bar, because that is what a real AppBar reports — do not add MediaQuery.padding.top to it.

The Scaffold is resolved with ScaffoldFinder, so this also works when context sits above the Scaffold it belongs to.

Example:

final appBarHeight = AppBarHeight.maybeOf(context);

Implementation

static double? maybeOf(BuildContext context) =>
    ScaffoldFinder.maybeOf(context)?.appBarMaxHeight;