first part of applying sort_child_properties_last (#82387)

packages/flutter/lib/src/cupertino/app.dart

@@ -442,8 +442,8 @@ class CupertinoScrollBehavior extends ScrollBehavior {
       case TargetPlatform.macOS:
       case TargetPlatform.windows:
         return CupertinoScrollbar(
-          child: child,
           controller: details.controller,
+          child: child,
         );
       case TargetPlatform.android:
       case TargetPlatform.fuchsia:
@@ -489,13 +489,13 @@ class _CupertinoAppState extends State<CupertinoApp> {
 
   Widget _inspectorSelectButtonBuilder(BuildContext context, VoidCallback onPressed) {
     return CupertinoButton.filled(
+      padding: EdgeInsets.zero,
+      onPressed: onPressed,
       child: const Icon(
         CupertinoIcons.search,
         size: 28.0,
         color: CupertinoColors.white,
       ),
-      padding: EdgeInsets.zero,
-      onPressed: onPressed,
     );
   }
 

packages/flutter/lib/src/cupertino/context_menu.dart

@@ -383,9 +383,9 @@ class _CupertinoContextMenuState extends State<CupertinoContextMenu> with Ticker
       builder: (BuildContext context) {
         return _DecoyChild(
           beginRect: childRect,
-          child: widget.child,
           controller: _openController,
           endRect: _decoyChildEndRect,
+          child: widget.child,
         );
       },
     );
@@ -820,12 +820,12 @@ class _ContextMenuRoute<T> extends PopupRoute<T> {
         // in the final position.
         return _ContextMenuRouteStatic(
           actions: _actions,
-          child: _builder!(context, animation),
           childGlobalKey: _childGlobalKey,
           contextMenuLocation: _contextMenuLocation,
           onDismiss: _onDismiss,
           orientation: orientation,
           sheetGlobalKey: _sheetGlobalKey,
+          child: _builder!(context, animation),
         );
       },
     );

packages/flutter/lib/src/cupertino/dialog.dart

@@ -344,9 +344,9 @@ class CupertinoAlertDialog extends StatelessWidget {
     );
     if (actions.isNotEmpty) {
       actionSection = _CupertinoAlertActionSection(
-        children: actions,
         scrollController: actionScrollController,
         isActionSheet: false,
+        children: actions,
       );
     }
 
@@ -646,10 +646,10 @@ class CupertinoActionSheet extends StatelessWidget {
       );
     }
     return _CupertinoAlertActionSection(
-      children: actions!,
       scrollController: actionScrollController,
       hasCancelButton: cancelButton != null,
       isActionSheet: true,
+      children: actions!,
     );
   }
 
@@ -708,9 +708,9 @@ class CupertinoActionSheet extends StatelessWidget {
               vertical: _kActionSheetEdgeVerticalPadding,
             ),
             child: Column(
-              children: children,
               mainAxisSize: MainAxisSize.min,
               crossAxisAlignment: CrossAxisAlignment.stretch,
+              children: children,
             ),
           ),
         ),
@@ -788,8 +788,8 @@ class CupertinoActionSheetAction extends StatelessWidget {
             ),
             child: DefaultTextStyle(
               style: style,
-              child: child,
               textAlign: TextAlign.center,
+              child: child,
             ),
           ),
         ),

packages/flutter/lib/src/cupertino/nav_bar.dart

@@ -1076,9 +1076,9 @@ class _NavigationBarStaticComponents {
       route.fullscreenDialog
     ) {
       leadingContent = CupertinoButton(
-        child: const Text('Close'),
         padding: EdgeInsets.zero,
         onPressed: () { route.navigator!.maybePop(); },
+        child: const Text('Close'),
       );
     }
 
@@ -1318,6 +1318,7 @@ class CupertinoNavigationBarBackButton extends StatelessWidget {
     }
 
     return CupertinoButton(
+      padding: EdgeInsets.zero,
       child: Semantics(
         container: true,
         excludeSemantics: true,
@@ -1345,7 +1346,6 @@ class CupertinoNavigationBarBackButton extends StatelessWidget {
           ),
         ),
       ),
-      padding: EdgeInsets.zero,
       onPressed: () {
         if (onPressed != null) {
           onPressed!();

packages/flutter/lib/src/cupertino/route.dart

@@ -265,8 +265,8 @@ mixin CupertinoRouteTransitionMixin<T> on PageRoute<T> {
       return CupertinoFullscreenDialogTransition(
         primaryRouteAnimation: animation,
         secondaryRouteAnimation: secondaryAnimation,
-        child: child,
         linearTransition: linearTransition,
+        child: child,
       );
     } else {
       return CupertinoPageTransition(
@@ -1227,8 +1227,8 @@ Widget _buildCupertinoDialogTransitions(BuildContext context, Animation<double>
   return FadeTransition(
     opacity: fadeAnimation,
     child: ScaleTransition(
-      child: child,
       scale: animation.drive(_dialogScaleTween),
+      child: child,
     ),
   );
 }

packages/flutter/lib/src/cupertino/search_field.dart

@@ -394,21 +394,24 @@ class _CupertinoSearchTextFieldState extends State<CupertinoSearchTextField>
     );
 
     final Widget prefix = Padding(
+      padding: widget.prefixInsets,
       child: IconTheme(
         data: iconThemeData,
         child: widget.prefixIcon,
       ),
-      padding: widget.prefixInsets,
     );
 
     final Widget suffix = Padding(
+      padding: widget.suffixInsets,
       child: CupertinoButton(
-        child: IconTheme(child: widget.suffixIcon, data: iconThemeData),
         onPressed: widget.onSuffixTap ?? _defaultOnSuffixTap,
         minSize: 0,
         padding: EdgeInsets.zero,
+        child: IconTheme(
+          data: iconThemeData,
+          child: widget.suffixIcon,
+        ),
       ),
-      padding: widget.suffixInsets,
     );
 
     return CupertinoTextField(

packages/flutter/lib/src/cupertino/segmented_control.dart

@@ -409,11 +409,11 @@ class _SegmentedControlState<T extends Object> extends State<CupertinoSegmentedC
     }
 
     final Widget box = _SegmentedControlRenderWidget<T>(
-      children: _gestureChildren,
       selectedIndex: selectedIndex,
       pressedIndex: pressedIndex,
       backgroundColors: _backgroundColors,
       borderColor: _borderColor!,
+      children: _gestureChildren,
     );
 
     return Padding(

packages/flutter/lib/src/cupertino/sliding_segmented_control.dart

@@ -687,11 +687,11 @@ class _SegmentedControlState<T> extends State<CupertinoSlidingSegmentedControl<T
           animation: thumbScaleAnimation,
           builder: (BuildContext context, Widget? child) {
             return _SegmentedControlRenderWidget<T>(
-              children: children,
               highlightedIndex: highlightedIndex,
               thumbColor: CupertinoDynamicColor.resolve(widget.thumbColor, context),
               thumbScale: thumbScaleAnimation.value,
               state: this,
+              children: children,
             );
           },
         ),

packages/flutter/lib/src/material/app.dart

@@ -713,8 +713,8 @@ class MaterialScrollBehavior extends ScrollBehavior {
           case TargetPlatform.macOS:
           case TargetPlatform.windows:
             return Scrollbar(
-              child: child,
               controller: details.controller,
+              child: child,
             );
           case TargetPlatform.android:
           case TargetPlatform.fuchsia:
@@ -737,9 +737,9 @@ class MaterialScrollBehavior extends ScrollBehavior {
       case TargetPlatform.android:
       case TargetPlatform.fuchsia:
         return GlowingOverscrollIndicator(
-          child: child,
           axisDirection: details.direction,
           color: Theme.of(context).colorScheme.secondary,
+          child: child,
         );
     }
   }
@@ -770,9 +770,9 @@ class _MaterialAppState extends State<MaterialApp> {
 
   Widget _inspectorSelectButtonBuilder(BuildContext context, VoidCallback onPressed) {
     return FloatingActionButton(
-      child: const Icon(Icons.search),
       onPressed: onPressed,
       mini: true,
+      child: const Icon(Icons.search),
     );
   }
 

packages/flutter/lib/src/material/app_bar.dart

@@ -901,8 +901,8 @@ class _AppBarState extends State<AppBar> {
       if (!widget.excludeHeaderSemantics) {
         title = Semantics(
           namesRoute: namesRoute,
-          child: title,
           header: true,
+          child: title,
         );
       }
 
@@ -1186,7 +1186,10 @@ class _SliverAppBarDelegate extends SliverPersistentHeaderDelegate {
         title: title,
         actions: actions,
         flexibleSpace: (title == null && flexibleSpace != null && !excludeHeaderSemantics)
-          ? Semantics(child: flexibleSpace, header: true)
+          ? Semantics(
+              header: true,
+              child: flexibleSpace,
+            )
           : flexibleSpace,
         bottom: bottom,
         elevation: forceElevated || isScrolledUnder ? elevation : 0.0,

packages/flutter/lib/src/material/button_bar.dart

@@ -188,13 +188,13 @@ class ButtonBar extends StatelessWidget {
         mainAxisAlignment: alignment ?? barTheme.alignment ?? MainAxisAlignment.end,
         mainAxisSize: mainAxisSize ?? barTheme.mainAxisSize ?? MainAxisSize.max,
         overflowDirection: overflowDirection ?? barTheme.overflowDirection ?? VerticalDirection.down,
+        overflowButtonSpacing: overflowButtonSpacing,
         children: children.map<Widget>((Widget child) {
           return Padding(
             padding: EdgeInsets.symmetric(horizontal: paddingUnit),
             child: child,
           );
         }).toList(),
-        overflowButtonSpacing: overflowButtonSpacing,
       ),
     );
     switch (buttonTheme.layoutBehavior) {

packages/flutter/lib/src/material/chip.dart

@@ -1982,14 +1982,14 @@ class _RawChipState extends State<RawChip> with TickerProviderStateMixin<RawChip
                   child: widget.label,
                 ),
                 avatar: AnimatedSwitcher(
-                  child: widget.avatar,
                   duration: _kDrawerDuration,
                   switchInCurve: Curves.fastOutSlowIn,
+                  child: widget.avatar,
                 ),
                 deleteIcon: AnimatedSwitcher(
-                  child: _buildDeleteIcon(context, theme, chipTheme, deleteIconKey),
                   duration: _kDrawerDuration,
                   switchInCurve: Curves.fastOutSlowIn,
+                  child: _buildDeleteIcon(context, theme, chipTheme, deleteIconKey),
                 ),
                 brightness: chipTheme.brightness,
                 padding: (widget.padding ?? chipTheme.padding).resolve(textDirection),
@@ -2028,9 +2028,9 @@ class _RawChipState extends State<RawChip> with TickerProviderStateMixin<RawChip
     result = _ChipRedirectingHitDetectionWidget(
       constraints: constraints,
       child: Center(
-        child: result,
         widthFactor: 1.0,
         heightFactor: 1.0,
+        child: result,
       ),
     );
     return Semantics(

packages/flutter/lib/src/material/data_table.dart

@@ -790,8 +790,8 @@ class DataTable extends StatelessWidget {
     if (onRowTap != null) {
       contents = TableRowInkWell(
         onTap: onRowTap,
-        child: contents,
         overlayColor: overlayColor,
+        child: contents,
       );
     }
     return TableCell(
@@ -915,14 +915,14 @@ class DataTable extends StatelessWidget {
         onLongPress: onLongPress,
         onTapCancel: onTapCancel,
         onTapDown: onTapDown,
-        child: label,
         overlayColor: overlayColor,
+        child: label,
       );
     } else if (onSelectChanged != null) {
       label = TableRowInkWell(
         onTap: onSelectChanged,
-        child: label,
         overlayColor: overlayColor,
+        child: label,
       );
     }
     return label;

packages/flutter/lib/src/material/date_picker.dart

@@ -528,12 +528,12 @@ class _DatePickerDialogState extends State<DatePickerDialog> with RestorationMix
         spacing: 8,
         children: <Widget>[
           TextButton(
-            child: Text(widget.cancelText ?? localizations.cancelButtonLabel),
             onPressed: _handleCancel,
+            child: Text(widget.cancelText ?? localizations.cancelButtonLabel),
           ),
           TextButton(
-            child: Text(widget.confirmText ?? localizations.okButtonLabel),
             onPressed: _handleOk,
+            child: Text(widget.confirmText ?? localizations.okButtonLabel),
           ),
         ],
       ),
@@ -630,6 +630,8 @@ class _DatePickerDialogState extends State<DatePickerDialog> with RestorationMix
 
     final Size dialogSize = _dialogSize(context) * textScaleFactor;
     return Dialog(
+      insetPadding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 24.0),
+      clipBehavior: Clip.antiAlias,
       child: AnimatedContainer(
         width: dialogSize.width,
         height: dialogSize.height,
@@ -673,8 +675,6 @@ class _DatePickerDialogState extends State<DatePickerDialog> with RestorationMix
           }),
         ),
       ),
-      insetPadding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 24.0),
-      clipBehavior: Clip.antiAlias,
     );
   }
 }
@@ -1512,6 +1512,10 @@ class _DateRangePickerDialogState extends State<DateRangePickerDialog> with Rest
     }
 
     return Dialog(
+      insetPadding: insetPadding,
+      shape: shape,
+      elevation: elevation,
+      clipBehavior: Clip.antiAlias,
       child: AnimatedContainer(
         width: size.width,
         height: size.height,
@@ -1526,10 +1530,6 @@ class _DateRangePickerDialogState extends State<DateRangePickerDialog> with Rest
           }),
         ),
       ),
-      insetPadding: insetPadding,
-      shape: shape,
-      elevation: elevation,
-      clipBehavior: Clip.antiAlias,
     );
   }
 }
@@ -1607,6 +1607,7 @@ class _CalendarRangePickerDialog extends StatelessWidget {
             const SizedBox(width: 8),
           ],
           bottom: PreferredSize(
+            preferredSize: const Size(double.infinity, 64),
             child: Row(children: <Widget>[
               SizedBox(width: MediaQuery.of(context).size.width < 360 ? 42 : 72),
               Expanded(
@@ -1654,7 +1655,6 @@ class _CalendarRangePickerDialog extends StatelessWidget {
                   child: entryModeButton!,
                 ),
             ]),
-            preferredSize: const Size(double.infinity, 64),
           ),
         ),
         body: _CalendarDateRangePicker(
@@ -2725,12 +2725,12 @@ class _InputDateRangePickerDialog extends StatelessWidget {
         spacing: 8,
         children: <Widget>[
           TextButton(
-            child: Text(cancelText ?? localizations.cancelButtonLabel),
             onPressed: onCancel,
+            child: Text(cancelText ?? localizations.cancelButtonLabel),
           ),
           TextButton(
-            child: Text(confirmText ?? localizations.okButtonLabel),
             onPressed: onConfirm,
+            child: Text(confirmText ?? localizations.okButtonLabel),
           ),
         ],
       ),

packages/flutter/lib/src/material/date_picker_deprecated.dart

@@ -301,8 +301,8 @@ class DayPicker extends StatelessWidget {
             onTap: () {
               onChanged(dayToBuild);
             },
-            child: dayWidget,
             dragStartBehavior: dragStartBehavior,
+            child: dayWidget,
           );
         }
 

packages/flutter/lib/src/material/dialog.dart

@@ -507,9 +507,9 @@ class AlertDialog extends StatelessWidget {
         child: DefaultTextStyle(
           style: titleTextStyle ?? dialogTheme.titleTextStyle ?? theme.textTheme.headline6!,
           child: Semantics(
-            child: title,
             namesRoute: label == null,
             container: true,
+            child: title,
           ),
         ),
       );

packages/flutter/lib/src/material/dropdown.dart

@@ -176,9 +176,9 @@ class _DropdownMenuItemButtonState<T> extends State<_DropdownMenuItemButton<T>>
       child = InkWell(
         autofocus: widget.itemIndex == widget.route.selectedIndex,
         enableFeedback: widget.enableFeedback,
-        child: child,
         onTap: _handleOnTap,
         onFocusChange: _handleFocusChange,
+        child: child,
       );
     }
     child = FadeTransition(opacity: opacity, child: child);

packages/flutter/lib/src/material/expansion_tile.dart

@@ -309,7 +309,9 @@ class _ExpansionTileState extends State<ExpansionTile> with SingleTickerProvider
     final bool shouldRemoveChildren = closed && !widget.maintainState;
 
     final Widget result = Offstage(
+      offstage: closed,
       child: TickerMode(
+        enabled: !closed,
         child: Padding(
           padding: widget.childrenPadding ?? EdgeInsets.zero,
           child: Column(
@@ -317,9 +319,7 @@ class _ExpansionTileState extends State<ExpansionTile> with SingleTickerProvider
             children: widget.children,
           ),
         ),
-        enabled: !closed,
       ),
-      offstage: closed,
     );
 
     return AnimatedBuilder(

packages/flutter/lib/src/material/flexible_space_bar.dart

@@ -337,13 +337,13 @@ class _FlexibleSpaceBarState extends State<FlexibleSpaceBar> {
             final double blurAmount = (constraints.maxHeight - settings.maxExtent) / 10;
             children.add(Positioned.fill(
               child: BackdropFilter(
-                child: Container(
-                  color: Colors.transparent,
-                ),
                 filter: ui.ImageFilter.blur(
                   sigmaX: blurAmount,
                   sigmaY: blurAmount,
                 ),
+                child: Container(
+                  color: Colors.transparent,
+                ),
               ),
             ));
           }

packages/flutter/lib/src/material/floating_action_button.dart

@@ -499,8 +499,8 @@ class FloatingActionButton extends StatelessWidget {
       clipBehavior: clipBehavior,
       focusNode: focusNode,
       autofocus: autofocus,
-      child: child,
       enableFeedback: enableFeedback,
+      child: child,
     );
 
     if (tooltip != null) {

packages/flutter/lib/src/material/icon_button.dart

@@ -381,7 +381,6 @@ class IconButton extends StatelessWidget {
         onTap: onPressed,
         mouseCursor: mouseCursor,
         enableFeedback: enableFeedback,
-        child: result,
         focusColor: focusColor ?? theme.focusColor,
         hoverColor: hoverColor ?? theme.hoverColor,
         highlightColor: highlightColor ?? theme.highlightColor,
@@ -391,6 +390,7 @@ class IconButton extends StatelessWidget {
           (iconSize + math.min(padding.horizontal, padding.vertical)) * 0.7,
           // x 0.5 for diameter -> radius and + 40% overflow derived from other Material apps.
         ),
+        child: result,
       ),
     );
   }

packages/flutter/lib/src/material/ink_well.dart

@@ -580,7 +580,6 @@ class InkResponse extends StatelessWidget {
   Widget build(BuildContext context) {
     final _ParentInkResponseState? parentState = _ParentInkResponseProvider.of(context);
     return _InkResponseStateWidget(
-      child: child,
       onTap: onTap,
       onTapDown: onTapDown,
       onTapCancel: onTapCancel,
@@ -609,6 +608,7 @@ class InkResponse extends StatelessWidget {
       parentState: parentState,
       getRectCallback: getRectCallback,
       debugCheckContext: debugCheckContext,
+      child: child,
     );
   }
 

packages/flutter/lib/src/material/material.dart

@@ -385,8 +385,8 @@ class _MaterialState extends State<Material> with TickerProviderStateMixin {
         key: _inkFeatureRenderer,
         absorbHitTest: widget.type != MaterialType.transparency,
         color: backgroundColor,
-        child: contents,
         vsync: this,
+        child: contents,
       ),
     );
 
@@ -445,19 +445,19 @@ class _MaterialState extends State<Material> with TickerProviderStateMixin {
     required Widget contents,
   }) {
     final _ShapeBorderPaint child = _ShapeBorderPaint(
-      child: contents,
       shape: shape,
+      child: contents,
     );
     if (clipBehavior == Clip.none) {
       return child;
     }
     return ClipPath(
-      child: child,
       clipper: ShapeBorderClipper(
         shape: shape,
         textDirection: Directionality.maybeOf(context),
       ),
       clipBehavior: clipBehavior,
+      child: child,
     );
   }
 
@@ -781,11 +781,6 @@ class _MaterialInteriorState extends AnimatedWidgetBaseState<_MaterialInterior>
     final ShapeBorder shape = _border!.evaluate(animation)!;
     final double elevation = _elevation!.evaluate(animation);
     return PhysicalShape(
-      child: _ShapeBorderPaint(
-        child: widget.child,
-        shape: shape,
-        borderOnForeground: widget.borderOnForeground,
-      ),
       clipper: ShapeBorderClipper(
         shape: shape,
         textDirection: Directionality.maybeOf(context),
@@ -794,6 +789,11 @@ class _MaterialInteriorState extends AnimatedWidgetBaseState<_MaterialInterior>
       elevation: elevation,
       color: ElevationOverlay.applyOverlay(context, widget.color, elevation),
       shadowColor: _shadowColor!.evaluate(animation)!,
+      child: _ShapeBorderPaint(
+        shape: shape,
+        borderOnForeground: widget.borderOnForeground,
+        child: widget.child,
+      ),
     );
   }
 }
@@ -812,9 +812,9 @@ class _ShapeBorderPaint extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return CustomPaint(
-      child: child,
       painter: borderOnForeground ? null : _ShapeBorderPainter(shape, Directionality.maybeOf(context)),
       foregroundPainter: borderOnForeground ? _ShapeBorderPainter(shape, Directionality.maybeOf(context)) : null,
+      child: child,
     );
   }
 }

packages/flutter/lib/src/material/material_button.dart

@@ -427,9 +427,9 @@ class MaterialButton extends StatelessWidget {
       focusNode: focusNode,
       autofocus: autofocus,
       animationDuration: buttonTheme.getAnimationDuration(this),
-      child: child,
       materialTapTargetSize: materialTapTargetSize ?? theme.materialTapTargetSize,
       disabledElevation: disabledElevation ?? 0.0,
+      child: child,
     );
   }
 

packages/flutter/lib/src/material/popup_menu.dart

@@ -1169,8 +1169,8 @@ class PopupMenuButtonState<T> extends State<PopupMenuButton<T>> {
         child: InkWell(
           onTap: widget.enabled ? showButtonMenu : null,
           canRequestFocus: _canRequestFocus,
-          child: widget.child,
           enableFeedback: enableFeedback,
+          child: widget.child,
         ),
       );
 

packages/flutter/lib/src/material/reorderable_list.dart

@@ -491,8 +491,8 @@ class _ReorderableListViewState extends State<ReorderableListView> {
         final double animValue = Curves.easeInOut.transform(animation.value);
         final double elevation = lerpDouble(0, 6, animValue)!;
         return Material(
-          child: child,
           elevation: elevation,
+          child: child,
         );
       },
       child: child,

packages/flutter/lib/src/material/scaffold.dart

@@ -2919,13 +2919,13 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
         DrawerController(
           key: _endDrawerKey,
           alignment: DrawerAlignment.end,
-          child: widget.endDrawer!,
           drawerCallback: _endDrawerOpenedCallback,
           dragStartBehavior: widget.drawerDragStartBehavior,
           scrimColor: widget.drawerScrimColor,
           edgeDragWidth: widget.drawerEdgeDragWidth,
           enableOpenDragGesture: widget.endDrawerEnableOpenDragGesture,
           isDrawerOpen: _endDrawerOpened.value,
+          child: widget.endDrawer!,
         ),
         _ScaffoldSlot.endDrawer,
         // remove the side padding from the side we're not touching
@@ -2945,13 +2945,13 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
         DrawerController(
           key: _drawerKey,
           alignment: DrawerAlignment.start,
-          child: widget.drawer!,
           drawerCallback: _drawerOpenedCallback,
           dragStartBehavior: widget.drawerDragStartBehavior,
           scrimColor: widget.drawerScrimColor,
           edgeDragWidth: widget.drawerEdgeDragWidth,
           enableOpenDragGesture: widget.drawerEnableOpenDragGesture,
           isDrawerOpen: _drawerOpened.value,
+          child: widget.drawer!,
         ),
         _ScaffoldSlot.drawer,
         // remove the side padding from the side we're not touching
@@ -3185,11 +3185,11 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
     _addIfNonNull(
       children,
       _FloatingActionButtonTransition(
-        child: widget.floatingActionButton,
         fabMoveAnimation: _floatingActionButtonMoveController,
         fabMotionAnimator: _floatingActionButtonAnimator,
         geometryNotifier: _geometryNotifier,
         currentController: _floatingActionButtonVisibilityController,
+        child: widget.floatingActionButton,
       ),
       _ScaffoldSlot.floatingActionButton,
       removeLeftPadding: true,
@@ -3253,7 +3253,6 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
           color: widget.backgroundColor ?? themeData.scaffoldBackgroundColor,
           child: AnimatedBuilder(animation: _floatingActionButtonMoveController, builder: (BuildContext context, Widget? child) {
             return CustomMultiChildLayout(
-              children: children,
               delegate: _ScaffoldLayout(
                 extendBody: _extendBody,
                 extendBodyBehindAppBar: widget.extendBodyBehindAppBar,
@@ -3268,6 +3267,7 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin, Resto
                 isSnackBarFloating: isSnackBarFloating,
                 snackBarWidth: snackBarWidth,
               ),
+              children: children,
             );
           }),
         ),

packages/flutter/lib/src/material/scrollbar.dart

@@ -176,7 +176,6 @@ class _ScrollbarState extends State<Scrollbar> {
   Widget build(BuildContext context) {
     if (_useCupertinoScrollbar) {
       return CupertinoScrollbar(
-        child: widget.child,
         isAlwaysShown: widget.isAlwaysShown ?? false,
         thickness: widget.thickness ?? CupertinoScrollbar.defaultThickness,
         thicknessWhileDragging: widget.thickness ?? CupertinoScrollbar.defaultThicknessWhileDragging,
@@ -184,10 +183,10 @@ class _ScrollbarState extends State<Scrollbar> {
         radiusWhileDragging: widget.radius ?? CupertinoScrollbar.defaultRadiusWhileDragging,
         controller: widget.controller,
         notificationPredicate: widget.notificationPredicate,
+        child: widget.child,
       );
     }
     return _MaterialScrollbar(
-      child: widget.child,
       controller: widget.controller,
       isAlwaysShown: widget.isAlwaysShown,
       showTrackOnHover: widget.showTrackOnHover,
@@ -196,6 +195,7 @@ class _ScrollbarState extends State<Scrollbar> {
       radius: widget.radius,
       notificationPredicate: widget.notificationPredicate,
       interactive: widget.interactive,
+      child: widget.child,
     );
   }
 }

packages/flutter/lib/src/material/snack_bar.dart

@@ -632,8 +632,8 @@ class _SnackBarState extends State<SnackBar> {
     }
 
     return Hero(
-      child: ClipRect(child: snackBarTransition),
       tag: '<SnackBar Hero tag - ${widget.content}>',
+      child: ClipRect(child: snackBarTransition),
     );
   }
 }

packages/flutter/lib/src/material/tabs.dart

@@ -119,8 +119,8 @@ class Tab extends StatelessWidget implements PreferredSizeWidget{
         crossAxisAlignment: CrossAxisAlignment.center,
         children: <Widget>[
           Container(
-            child: icon,
             margin: iconMargin,
+            child: icon,
           ),
           _buildLabelText(),
         ],
@@ -130,8 +130,8 @@ class Tab extends StatelessWidget implements PreferredSizeWidget{
     return SizedBox(
       height: height,
       child: Center(
-        child: label,
         widthFactor: 1.0,
+        child: label,
       ),
     );
   }

packages/flutter/lib/src/material/theme.dart

@@ -227,8 +227,8 @@ class _AnimatedThemeState extends AnimatedWidgetBaseState<AnimatedTheme> {
   @override
   Widget build(BuildContext context) {
     return Theme(
-      child: widget.child,
       data: _data!.evaluate(animation),
+      child: widget.child,
     );
   }
 

packages/flutter/lib/src/material/user_accounts_drawer_header.dart

@@ -199,8 +199,8 @@ class _AccountDetailsState extends State<_AccountDetails> with SingleTickerProvi
     if (widget.onTap != null) {
       accountDetails = InkWell(
         onTap: widget.onTap,
-        child: accountDetails,
         excludeFromSemantics: true,
+        child: accountDetails,
       );
     }
 

packages/flutter/lib/src/widgets/animated_size.dart

@@ -123,13 +123,13 @@ class _AnimatedSizeState
   @override
   Widget build(BuildContext context) {
     return _AnimatedSize(
-      child: widget.child,
       alignment: widget.alignment,
       curve: widget.curve,
       duration: widget.duration,
       reverseDuration: widget.reverseDuration,
       vsync: this,
       clipBehavior: widget.clipBehavior,
+      child: widget.child,
     );
   }
 }

packages/flutter/lib/src/widgets/animated_switcher.dart

@@ -273,11 +273,11 @@ class AnimatedSwitcher extends StatefulWidget {
   /// This is an [AnimatedSwitcherLayoutBuilder] function.
   static Widget defaultLayoutBuilder(Widget? currentChild, List<Widget> previousChildren) {
     return Stack(
+      alignment: Alignment.center,
       children: <Widget>[
         ...previousChildren,
         if (currentChild != null) currentChild,
       ],
-      alignment: Alignment.center,
     );
   }
 

packages/flutter/lib/src/widgets/app.dart

@@ -1592,8 +1592,8 @@ class _WidgetsAppState extends State<WidgetsApp> with WidgetsBindingObserver {
     assert(() {
       if (widget.debugShowWidgetInspector || WidgetsApp.debugShowWidgetInspectorOverride) {
         result = WidgetInspector(
-          child: result,
           selectButtonBuilder: widget.inspectorSelectButtonBuilder,
+          child: result,
         );
       }
       if (widget.debugShowCheckedModeBanner && WidgetsApp.debugAllowBannerOverride) {

packages/flutter/lib/src/widgets/banner.dart

@@ -345,10 +345,10 @@ class CheckedModeBanner extends StatelessWidget {
     Widget result = child;
     assert(() {
       result = Banner(
-        child: result,
         message: 'DEBUG',
         textDirection: TextDirection.ltr,
         location: BannerLocation.topEnd,
+        child: result,
       );
       return true;
     }());

packages/flutter/lib/src/widgets/basic.dart

@@ -2653,11 +2653,11 @@ class UnconstrainedBox extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return ConstraintsTransformBox(
-      child: child,
       textDirection: textDirection,
       alignment: alignment,
       clipBehavior: clipBehavior,
       constraintsTransform: _axisToTransform(constrainedAxis),
+      child: child,
     );
   }
 

packages/flutter/lib/src/widgets/container.dart

@@ -431,7 +431,7 @@ class Container extends StatelessWidget {
       current = Padding(padding: margin!, child: current);
 
     if (transform != null)
-      current = Transform(transform: transform!, child: current, alignment: transformAlignment);
+      current = Transform(transform: transform!, alignment: transformAlignment, child: current);
 
     return current!;
   }

packages/flutter/lib/src/widgets/dismissible.dart

@@ -618,8 +618,8 @@ class _DismissibleState extends State<Dismissible> with TickerProviderStateMixin
       onVerticalDragUpdate: _directionIsXAxis ? null : _handleDragUpdate,
       onVerticalDragEnd: _directionIsXAxis ? null : _handleDragEnd,
       behavior: widget.behavior,
-      child: content,
       dragStartBehavior: widget.dragStartBehavior,
+      child: content,
     );
   }
 }

packages/flutter/lib/src/widgets/drag_target.dart

@@ -1007,8 +1007,8 @@ class _DragAvatar<T extends Object> extends Drag {
       left: _lastOffset!.dx - overlayTopLeft.dx,
       top: _lastOffset!.dy - overlayTopLeft.dy,
       child: IgnorePointer(
-        child: feedback,
         ignoringSemantics: ignoringFeedbackSemantics,
+        child: feedback,
       ),
     );
   }

packages/flutter/lib/src/widgets/draggable_scrollable_sheet.dart

@@ -335,8 +335,8 @@ class _DraggableScrollableSheetState extends State<DraggableScrollableSheet> {
         _extent.availablePixels = widget.maxChildSize * constraints.biggest.height;
         final Widget sheet = FractionallySizedBox(
           heightFactor: _extent.currentExtent,
-          child: widget.builder(context, _scrollController),
           alignment: Alignment.bottomCenter,
+          child: widget.builder(context, _scrollController),
         );
         return widget.expand ? SizedBox.expand(child: sheet) : sheet;
       },
@@ -554,7 +554,7 @@ class DraggableScrollableActuator extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return _InheritedResetNotifier(child: child, notifier: _notifier);
+    return _InheritedResetNotifier(notifier: _notifier, child: child);
   }
 }
 

packages/flutter/lib/src/widgets/implicit_animations.dart

@@ -772,7 +772,6 @@ class _AnimatedContainerState extends AnimatedWidgetBaseState<AnimatedContainer>
   Widget build(BuildContext context) {
     final Animation<double> animation = this.animation;
     return Container(
-      child: widget.child,
       alignment: _alignment?.evaluate(animation),
       padding: _padding?.evaluate(animation),
       decoration: _decoration?.evaluate(animation),
@@ -782,6 +781,7 @@ class _AnimatedContainerState extends AnimatedWidgetBaseState<AnimatedContainer>
       transform: _transform?.evaluate(animation),
       transformAlignment: _transformAlignment?.evaluate(animation),
       clipBehavior: widget.clipBehavior,
+      child: widget.child,
     );
   }
 
@@ -1248,13 +1248,13 @@ class _AnimatedPositionedState extends AnimatedWidgetBaseState<AnimatedPositione
   @override
   Widget build(BuildContext context) {
     return Positioned(
-      child: widget.child,
       left: _left?.evaluate(animation),
       top: _top?.evaluate(animation),
       right: _right?.evaluate(animation),
       bottom: _bottom?.evaluate(animation),
       width: _width?.evaluate(animation),
       height: _height?.evaluate(animation),
+      child: widget.child,
     );
   }
 
@@ -1385,13 +1385,13 @@ class _AnimatedPositionedDirectionalState extends AnimatedWidgetBaseState<Animat
     assert(debugCheckHasDirectionality(context));
     return Positioned.directional(
       textDirection: Directionality.of(context),
-      child: widget.child,
       start: _start?.evaluate(animation),
       top: _top?.evaluate(animation),
       end: _end?.evaluate(animation),
       bottom: _bottom?.evaluate(animation),
       width: _width?.evaluate(animation),
       height: _height?.evaluate(animation),
+      child: widget.child,
     );
   }
 
@@ -1532,8 +1532,8 @@ class _AnimatedOpacityState extends ImplicitlyAnimatedWidgetState<AnimatedOpacit
   Widget build(BuildContext context) {
     return FadeTransition(
       opacity: _opacityAnimation,
-      child: widget.child,
       alwaysIncludeSemantics: widget.alwaysIncludeSemantics,
+      child: widget.child,
     );
   }
 }
@@ -1919,7 +1919,6 @@ class _AnimatedPhysicalModelState extends AnimatedWidgetBaseState<AnimatedPhysic
   @override
   Widget build(BuildContext context) {
     return PhysicalModel(
-      child: widget.child,
       shape: widget.shape,
       clipBehavior: widget.clipBehavior,
       borderRadius: _borderRadius!.evaluate(animation),
@@ -1928,6 +1927,7 @@ class _AnimatedPhysicalModelState extends AnimatedWidgetBaseState<AnimatedPhysic
       shadowColor: widget.animateShadowColor
           ? _shadowColor!.evaluate(animation)!
           : widget.shadowColor,
+      child: widget.child,
     );
   }
 }

packages/flutter/lib/src/widgets/list_wheel_scroll_view.dart

@@ -93,7 +93,7 @@ class ListWheelChildListDelegate extends ListWheelChildDelegate {
   Widget? build(BuildContext context, int index) {
     if (index < 0 || index >= children.length)
       return null;
-    return IndexedSemantics(child: children[index], index: index);
+    return IndexedSemantics(index: index, child: children[index]);
   }
 
   @override
@@ -139,7 +139,7 @@ class ListWheelChildLoopingListDelegate extends ListWheelChildDelegate {
   Widget? build(BuildContext context, int index) {
     if (children.isEmpty)
       return null;
-    return IndexedSemantics(child: children[index % children.length], index: index);
+    return IndexedSemantics(index: index, child: children[index % children.length]);
   }
 
   @override
@@ -182,11 +182,11 @@ class ListWheelChildBuilderDelegate extends ListWheelChildDelegate {
   Widget? build(BuildContext context, int index) {
     if (childCount == null) {
       final Widget? child = builder(context, index);
-      return child == null ? null : IndexedSemantics(child: child, index: index);
+      return child == null ? null : IndexedSemantics(index: index, child: child);
     }
     if (index < 0 || index >= childCount!)
       return null;
-    return IndexedSemantics(child: builder(context, index), index: index);
+    return IndexedSemantics(index: index, child: builder(context, index));
   }
 
   @override

packages/flutter/lib/src/widgets/overlay.dart

@@ -507,8 +507,8 @@ class OverlayState extends State<Overlay> with TickerProviderStateMixin {
     }
     return _Theatre(
       skipCount: children.length - onstageCount,
-      children: children.reversed.toList(growable: false),
       clipBehavior: widget.clipBehavior,
+      children: children.reversed.toList(growable: false),
     );
   }
 

packages/flutter/lib/src/widgets/reorderable_list.dart

@@ -852,8 +852,8 @@ class SliverReorderableListState extends State<SliverReorderableList> with Ticke
     return _ReorderableItem(
       key: _ReorderableItemGlobalKey(child.key!, index, this),
       index: index,
-      child: child,
       capturedThemes: InheritedTheme.capture(from: context, to: overlay.context),
+      child: child,
     );
   }
 
@@ -1221,11 +1221,11 @@ class _DragInfo extends Drag {
       _DragItemProxy(
         listState: listState,
         index: index,
-        child: child,
         size: itemSize,
         animation: _proxyAnimation!,
         position: dragPosition - dragOffset - _overlayOrigin(context),
         proxyDecorator: proxyDecorator,
+        child: child,
       ),
     );
   }
@@ -1270,14 +1270,14 @@ class _DragItemProxy extends StatelessWidget {
           if (dropPosition != null) {
             effectivePosition = Offset.lerp(dropPosition - overlayOrigin, effectivePosition, Curves.easeOut.transform(animation.value))!;
           }
-        return Positioned(
+          return Positioned(
+            left: effectivePosition.dx,
+            top: effectivePosition.dy,
             child: SizedBox(
               width: size.width,
               height: size.height,
               child: child,
             ),
-            left: effectivePosition.dx,
-            top: effectivePosition.dy,
           );
         },
         child: proxyChild,

packages/flutter/lib/src/widgets/routes.dart

@@ -1823,9 +1823,9 @@ class RawDialogRoute<T> extends PopupRoute<T> {
   @override
   Widget buildPage(BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation) {
     return Semantics(
-      child: _pageBuilder(context, animation, secondaryAnimation),
       scopesRoute: true,
       explicitChildNodes: true,
+      child: _pageBuilder(context, animation, secondaryAnimation),
     );
   }
 

packages/flutter/lib/src/widgets/scroll_configuration.dart

@@ -108,9 +108,9 @@ class ScrollBehavior {
       case TargetPlatform.android:
       case TargetPlatform.fuchsia:
       return GlowingOverscrollIndicator(
-        child: child,
         axisDirection: axisDirection,
         color: _kDefaultGlowColor,
+        child: child,
       );
     }
   }
@@ -124,8 +124,8 @@ class ScrollBehavior {
       case TargetPlatform.macOS:
       case TargetPlatform.windows:
         return RawScrollbar(
-          child: child,
           controller: details.controller,
+          child: child,
         );
       case TargetPlatform.android:
       case TargetPlatform.fuchsia:

packages/flutter/lib/src/widgets/scrollable.dart

@@ -758,10 +758,10 @@ class ScrollableState extends State<Scrollable> with TickerProviderStateMixin, R
     if (!widget.excludeFromSemantics) {
       result = _ScrollSemantics(
         key: _scrollSemanticsKey,
-        child: result,
         position: position,
         allowImplicitScrolling: _physics!.allowImplicitScrolling,
         semanticChildCount: widget.semanticChildCount,
+        child: result,
       );
     }
 

packages/flutter/lib/src/widgets/single_child_scroll_view.dart

@@ -338,8 +338,8 @@ class SingleChildScrollView extends StatelessWidget {
         return _SingleChildViewport(
           axisDirection: axisDirection,
           offset: offset,
-          child: contents,
           clipBehavior: clipBehavior,
+          child: contents,
         );
       },
     );

packages/flutter/lib/src/widgets/sliver.dart

@@ -470,7 +470,7 @@ class SliverChildBuilderDelegate extends SliverChildDelegate {
     }
     if (addAutomaticKeepAlives)
       child = AutomaticKeepAlive(child: child);
-    return KeyedSubtree(child: child, key: key);
+    return KeyedSubtree(key: key, child: child);
   }
 
   @override
@@ -734,7 +734,7 @@ class SliverChildListDelegate extends SliverChildDelegate {
     }
     if (addAutomaticKeepAlives)
       child = AutomaticKeepAlive(child: child);
-    return KeyedSubtree(child: child, key: key);
+    return KeyedSubtree(key: key, child: child);
   }
 
   @override

packages/flutter/lib/src/widgets/visibility.dart

@@ -218,9 +218,9 @@ class Visibility extends StatelessWidget {
       Widget result = child;
       if (!maintainInteractivity) {
         result = IgnorePointer(
-          child: child,
           ignoring: !visible,
           ignoringSemantics: !visible && !maintainSemantics,
+          child: child,
         );
       }
       return Opacity(
@@ -235,10 +235,10 @@ class Visibility extends StatelessWidget {
     if (maintainState) {
       Widget result = child;
       if (!maintainAnimation)
-        result = TickerMode(child: child, enabled: visible);
+        result = TickerMode(enabled: visible, child: child);
       return Offstage(
-        child: result,
         offstage: !visible,
+        child: result,
       );
     }
     assert(!maintainAnimation);
@@ -473,7 +473,7 @@ class SliverVisibility extends StatelessWidget {
     if (maintainState) {
       Widget result = sliver;
       if (!maintainAnimation)
-        result = TickerMode(child: sliver, enabled: visible);
+        result = TickerMode(enabled: visible, child: sliver);
       return SliverOffstage(
         sliver: result,
         offstage: !visible,

packages/flutter/test/cupertino/button_test.dart

@@ -19,8 +19,8 @@ void main() {
   testWidgets('Default layout minimum size', (WidgetTester tester) async {
     await tester.pumpWidget(
       boilerplate(child: const CupertinoButton(
-        child: Text('X', style: testStyle),
         onPressed: null,
+        child: Text('X', style: testStyle),
       )),
     );
     final RenderBox buttonBox = tester.renderObject(find.byType(CupertinoButton));
@@ -35,9 +35,9 @@ void main() {
     const double minSize = 60.0;
     await tester.pumpWidget(
       boilerplate(child: const CupertinoButton(
-        child: Text('X', style: testStyle),
         onPressed: null,
         minSize: minSize,
+        child: Text('X', style: testStyle),
       )),
     );
     final RenderBox buttonBox = tester.renderObject(find.byType(CupertinoButton));
@@ -51,8 +51,8 @@ void main() {
   testWidgets('Size grows with text', (WidgetTester tester) async {
     await tester.pumpWidget(
       boilerplate(child: const CupertinoButton(
-        child: Text('XXXX', style: testStyle),
         onPressed: null,
+        child: Text('XXXX', style: testStyle),
       )),
     );
     final RenderBox buttonBox = tester.renderObject(find.byType(CupertinoButton));
@@ -130,9 +130,9 @@ void main() {
 
   testWidgets('Button with background is wider', (WidgetTester tester) async {
     await tester.pumpWidget(boilerplate(child: const CupertinoButton(
-      child: Text('X', style: testStyle),
       onPressed: null,
       color: Color(0xFFFFFFFF),
+      child: Text('X', style: testStyle),
     )));
     final RenderBox buttonBox = tester.renderObject(find.byType(CupertinoButton));
     expect(
@@ -144,9 +144,9 @@ void main() {
 
   testWidgets('Custom padding', (WidgetTester tester) async {
     await tester.pumpWidget(boilerplate(child: const CupertinoButton(
-      child: Text('X', style: testStyle),
       onPressed: null,
       padding: EdgeInsets.all(100.0),
+      child: Text('X', style: testStyle),
     )));
     final RenderBox buttonBox = tester.renderObject(find.byType(CupertinoButton));
     expect(
@@ -185,8 +185,8 @@ void main() {
 
   testWidgets("Disabled button doesn't animate", (WidgetTester tester) async {
     await tester.pumpWidget(boilerplate(child: const CupertinoButton(
-      child: Text('Tap me'),
       onPressed: null,
+      child: Text('Tap me'),
     )));
     expect(SchedulerBinding.instance!.transientCallbackCount, equals(0));
     await tester.tap(find.byType(CupertinoButton));
@@ -267,10 +267,10 @@ void main() {
 
   testWidgets('Can specify colors', (WidgetTester tester) async {
     await tester.pumpWidget(boilerplate(child: CupertinoButton(
-      child: const Text('Skeuomorph me'),
       color: const Color(0x000000FF),
       disabledColor: const Color(0x0000FF00),
       onPressed: () { },
+      child: const Text('Skeuomorph me'),
     )));
 
     BoxDecoration boxDecoration = tester.widget<DecoratedBox>(
@@ -280,10 +280,10 @@ void main() {
     expect(boxDecoration.color, const Color(0x000000FF));
 
     await tester.pumpWidget(boilerplate(child: const CupertinoButton(
-      child: Text('Skeuomorph me'),
       color: Color(0x000000FF),
       disabledColor: Color(0x0000FF00),
       onPressed: null,
+      child: Text('Skeuomorph me'),
     )));
 
     boxDecoration = tester.widget<DecoratedBox>(
@@ -308,10 +308,10 @@ void main() {
       MediaQuery(
         data: const MediaQueryData(platformBrightness: Brightness.dark),
         child: boilerplate(child: CupertinoButton(
-          child: const Text('Skeuomorph me'),
           color: bgColor,
           disabledColor: inactive,
           onPressed: () { },
+          child: const Text('Skeuomorph me'),
         )),
       ),
     );
@@ -326,10 +326,10 @@ void main() {
       MediaQuery(
         data: const MediaQueryData(platformBrightness: Brightness.light),
         child: boilerplate(child: const CupertinoButton(
-          child: Text('Skeuomorph me'),
           color: bgColor,
           disabledColor: inactive,
           onPressed: null,
+          child: Text('Skeuomorph me'),
         )),
       ),
     );

packages/flutter/test/cupertino/context_menu_action_test.dart

@@ -17,11 +17,11 @@ void main() {
     final UniqueKey actionKey = UniqueKey();
     final CupertinoContextMenuAction action = CupertinoContextMenuAction(
       key: actionKey,
-      child: const Text('I am a CupertinoContextMenuAction'),
       onPressed: onPressed,
       trailingIcon: CupertinoIcons.home,
       isDestructiveAction: isDestructiveAction,
       isDefaultAction: isDefaultAction,
+      child: const Text('I am a CupertinoContextMenuAction'),
     );
 
     return CupertinoApp(

packages/flutter/test/cupertino/dialog_test.dart

@@ -127,7 +127,11 @@ void main() {
             title: const Text('The Title'),
             content: const Text('Content'),
             actions: <Widget>[
-              CupertinoDialogAction(child: const Text('Cancel'), isDefaultAction: true, onPressed: () {}),
+              CupertinoDialogAction(
+                isDefaultAction: true,
+                onPressed: () {},
+                child: const Text('Cancel'),
+              ),
               const CupertinoDialogAction(child: Text('OK')),
             ],
           ),

packages/flutter/test/cupertino/form_section_test.dart

@@ -123,8 +123,8 @@ void main() {
         child: MediaQuery(
           data: const MediaQueryData(),
           child: CupertinoFormSection(
-            children: <Widget>[CupertinoTextFormFieldRow()],
             backgroundColor: backgroundColor,
+            children: <Widget>[CupertinoTextFormFieldRow()],
           ),
         ),
       ),
@@ -142,8 +142,8 @@ void main() {
       CupertinoApp(
         home: Center(
           child: CupertinoFormSection(
-            children: <Widget>[CupertinoTextFormFieldRow()],
             clipBehavior: Clip.antiAlias,
+            children: <Widget>[CupertinoTextFormFieldRow()],
           ),
         ),
       ),

packages/flutter/test/cupertino/nav_bar_test.dart

@@ -18,8 +18,8 @@ void main() {
       const CupertinoApp(
         home: CupertinoNavigationBar(
           leading: CupertinoButton(
-            child: Text('Something'),
             onPressed: null,
+            child: Text('Something'),
           ),
           middle: Text('Title'),
         ),
@@ -133,7 +133,7 @@ void main() {
         home: Align(
           alignment: Alignment.topCenter,
           child: CupertinoNavigationBar(
-            leading: const CupertinoButton(child: Text('Cheetah'), onPressed: null),
+            leading: const CupertinoButton(onPressed: null, child: Text('Cheetah')),
             // Let the box take all the vertical space to test vertical padding but let
             // the nav bar position it horizontally.
             middle: Align(
@@ -142,7 +142,7 @@ void main() {
               widthFactor: 1.0,
               child: const Text('Title'),
             ),
-            trailing: const CupertinoButton(child: Text('Puma'), onPressed: null),
+            trailing: const CupertinoButton(onPressed: null, child: Text('Puma')),
             padding: const EdgeInsetsDirectional.only(
               start: 10.0,
               end: 20.0,
@@ -245,11 +245,11 @@ void main() {
           child: Align(
             alignment: Alignment.topCenter,
             child: CupertinoNavigationBar(
-              leading: CupertinoButton(child: Text('Cheetah'), onPressed: null),
+              leading: CupertinoButton(onPressed: null, child: Text('Cheetah')),
               // Let the box take all the vertical space to test vertical padding but let
               // the nav bar position it horizontally.
               middle: Text('Title'),
-              trailing: CupertinoButton(child: Text('Puma'), onPressed: null),
+              trailing: CupertinoButton(onPressed: null, child: Text('Puma')),
               padding: EdgeInsetsDirectional.only(
                 start: 10.0,
                 end: 20.0,

packages/flutter/test/cupertino/picker_test.dart

@@ -182,9 +182,9 @@ void main() {
             width: 300.0,
             child: CupertinoPicker(
               itemExtent: 15.0,
-              children: const <Widget>[Text('1'), Text('1')],
               onSelectedItemChanged: (int i) {},
               selectionOverlay: null,
+              children: const <Widget>[Text('1'), Text('1')],
             ),
           ),
         ),

packages/flutter/test/cupertino/scaffold_test.dart

@@ -420,8 +420,8 @@ void main() {
     await tester.pumpWidget(
       const CupertinoApp(
         home: CupertinoPageScaffold(
-          child: Center(),
           backgroundColor: Color(0xFF010203),
+          child: Center(),
         ),
       ),
     );

packages/flutter/test/cupertino/tab_scaffold_test.dart

@@ -58,10 +58,10 @@ void main() {
           tabBar: _buildTabBar(),
           tabBuilder: (BuildContext context, int index) {
             return CustomPaint(
-              child: Text('Page ${index + 1}'),
               painter: TestCallbackPainter(
                 onPaint: () { tabsPainted.add(index); },
               ),
+              child: Text('Page ${index + 1}'),
             );
           },
         ),
@@ -248,10 +248,10 @@ void main() {
           controller: controller,
           tabBuilder: (BuildContext context, int index) {
             return CustomPaint(
-              child: Text('Page ${index + 1}'),
               painter: TestCallbackPainter(
                 onPaint: () { tabsPainted.add(index); },
               ),
+              child: Text('Page ${index + 1}'),
             );
           },
         ),
@@ -284,10 +284,10 @@ void main() {
           tabBar: _buildTabBar(),
           tabBuilder: (BuildContext context, int index) {
             return CustomPaint(
-              child: Text('Page ${index + 1}'),
               painter: TestCallbackPainter(
                 onPaint: () { tabsPainted.add(index); },
               ),
+              child: Text('Page ${index + 1}'),
             );
           },
         ),
@@ -303,10 +303,10 @@ void main() {
           controller: CupertinoTabController(initialIndex: 1), // Programmatically change the tab now.
           tabBuilder: (BuildContext context, int index) {
             return CustomPaint(
-              child: Text('Page ${index + 1}'),
               painter: TestCallbackPainter(
                 onPaint: () { tabsPainted.add(index); },
               ),
+              child: Text('Page ${index + 1}'),
             );
           },
         ),
@@ -630,10 +630,10 @@ void main() {
           controller: controller,
           tabBuilder: (BuildContext context, int index) {
             return CustomPaint(
-              child: Text('Page ${index + 1}'),
               painter: TestCallbackPainter(
                 onPaint: () { tabsPainted.add(index); },
               ),
+              child: Text('Page ${index + 1}'),
             );
           },
         ),
@@ -652,10 +652,10 @@ void main() {
           controller: controller,
           tabBuilder: (BuildContext context, int index) {
             return CustomPaint(
-              child: Text('Page ${index + 1}'),
               painter: TestCallbackPainter(
                 onPaint: () { tabsPainted.add(index); },
               ),
+              child: Text('Page ${index + 1}'),
             );
           },
         ),
@@ -688,10 +688,10 @@ void main() {
             controller: oldController,
             tabBuilder: (BuildContext context, int index) {
               return CustomPaint(
-                child: Text('Page ${index + 1}'),
                 painter: TestCallbackPainter(
                   onPaint: () { tabsPainted.add(index); },
                 ),
+                child: Text('Page ${index + 1}'),
               );
             },
           ),
@@ -710,10 +710,10 @@ void main() {
             tabBuilder:
             (BuildContext context, int index) {
               return CustomPaint(
-                child: Text('Page ${index + 1}'),
                 painter: TestCallbackPainter(
                   onPaint: () { tabsPainted.add(index); },
                 ),
+                child: Text('Page ${index + 1}'),
               );
             },
           ),