preferredSize property
override
Returns the preferred size based on the platform: OudsToolbarTop size for iOS, OudsTopAppBar size for Android and other platforms.
Implementation
@override
Size get preferredSize => defaultTargetPlatform == TargetPlatform.iOS
? OudsToolbarTop.getPreferredSize
: OudsTopAppBar.getPreferredSize(size: size,expandedHeight: materialConfig?.expandedHeight);