You could use the Directionality widget.
To make use of Directionality within the AppBar, see the next code:
PreferredSize(
preferredSize: Dimension(width, peak),
youngster: Directionality(
// ----right or left---
textDirection: TextDirection.rtl,
youngster: AppBar(
// automaticallyImplyLeading: false,
elevation: 0.5,
centerTitle: true,
title: ValueListenableBuilder(
valueListenable: globals.selectedBarIndex,
builder: (context, worth, Widget? youngster) {
return Textual content(globals.navBarItems[globals.selectedBarIndex.value].textual content);
},
),
main: IconButton(
onPressed: _handleMenuButtonPressed,
icon: ValueListenableBuilder<AdvancedDrawerValue>(
valueListenable: widget.advancedDrawerController,
builder: (_, worth, __) {
return AnimatedSwitcher(
length: const Length(milliseconds: 250),
youngster: Icon(
worth.seen ? Icons.clear : Icons.menu,
key: ValueKey<bool>(worth.seen),
),
);
},
),
),
),
),
),