CupertinoPopupSurface constructor
Creates an iOS-style rounded rectangle popup surface.
Implementation
const CupertinoPopupSurface({
super.key,
this.blurSigma = defaultBlurSigma,
this.isSurfacePainted = true,
required this.child,
}) : assert(blurSigma >= 0, 'CupertinoPopupSurface requires a non-negative blur sigma.');