diff --git a/dev/integration_tests/flutter_gallery/lib/demo/material/bottom_navigation_demo.dart b/dev/integration_tests/flutter_gallery/lib/demo/material/bottom_navigation_demo.dart
index df1a559c01be..be4ea2105303 100644
--- a/dev/integration_tests/flutter_gallery/lib/demo/material/bottom_navigation_demo.dart
+++ b/dev/integration_tests/flutter_gallery/lib/demo/material/bottom_navigation_demo.dart
@@ -40,14 +40,15 @@ class NavigationIconView {
 
   FadeTransition transition(BottomNavigationBarType type, BuildContext context) {
     Color? iconColor;
-    if (type == BottomNavigationBarType.shifting) {
-      iconColor = _color;
-    } else {
-      final ThemeData theme = Theme.of(context);
-      final ColorScheme colorScheme = theme.colorScheme;
-      iconColor = theme.brightness == Brightness.light
-          ? colorScheme.primary
-          : colorScheme.secondary;
+    switch (type) {
+      case BottomNavigationBarType.shifting:
+        iconColor = _color;
+      case BottomNavigationBarType.fixed:
+        final ThemeData theme = Theme.of(context);
+        iconColor = switch (theme.brightness) {
+          Brightness.light => theme.colorScheme.primary,
+          Brightness.dark  => theme.colorScheme.secondary,
+        };
     }
 
     return FadeTransition(
diff --git a/dev/manual_tests/lib/overlay_geometry.dart b/dev/manual_tests/lib/overlay_geometry.dart
index 813b31303c0a..edd784e65dca 100644
--- a/dev/manual_tests/lib/overlay_geometry.dart
+++ b/dev/manual_tests/lib/overlay_geometry.dart
@@ -37,13 +37,16 @@ class _MarkerPainter extends CustomPainter {
       ..color = const Color(0xFFFFFFFF)
       ..style = PaintingStyle.stroke
       ..strokeWidth = 1.0;
-    if (type == MarkerType.topLeft) {
-      canvas.drawLine(Offset(r, r), Offset(r + r - 1.0, r), paint);
-      canvas.drawLine(Offset(r, r), Offset(r, r + r - 1.0), paint);
-    }
-    if (type == MarkerType.bottomRight) {
-      canvas.drawLine(Offset(r, r), Offset(1.0, r), paint);
-      canvas.drawLine(Offset(r, r), Offset(r, 1.0), paint);
+
+    switch (type) {
+      case MarkerType.topLeft:
+        canvas.drawLine(Offset(r, r), Offset(r + r - 1.0, r), paint);
+        canvas.drawLine(Offset(r, r), Offset(r, r + r - 1.0), paint);
+      case MarkerType.bottomRight:
+        canvas.drawLine(Offset(r, r), Offset(1.0, r), paint);
+        canvas.drawLine(Offset(r, r), Offset(r, 1.0), paint);
+      case MarkerType.touch:
+        break;
     }
   }
 
diff --git a/examples/api/lib/material/bottom_app_bar/bottom_app_bar.2.dart b/examples/api/lib/material/bottom_app_bar/bottom_app_bar.2.dart
index 1aa6b981b8b5..35e03639130f 100644
--- a/examples/api/lib/material/bottom_app_bar/bottom_app_bar.2.dart
+++ b/examples/api/lib/material/bottom_app_bar/bottom_app_bar.2.dart
@@ -41,11 +41,13 @@ class _BottomAppBarDemoState extends State<BottomAppBarDemo> {
       _isVisible ? FloatingActionButtonLocation.endContained : FloatingActionButtonLocation.endFloat;
 
   void _listen() {
-    final ScrollDirection direction = _controller.position.userScrollDirection;
-    if (direction == ScrollDirection.forward) {
-      _show();
-    } else if (direction == ScrollDirection.reverse) {
-      _hide();
+    switch (_controller.position.userScrollDirection) {
+      case ScrollDirection.idle:
+        break;
+      case ScrollDirection.forward:
+        _show();
+      case ScrollDirection.reverse:
+        _hide();
     }
   }
 
diff --git a/packages/flutter/lib/src/cupertino/date_picker.dart b/packages/flutter/lib/src/cupertino/date_picker.dart
index 1e0fe079a5f1..08a44fdc4a7d 100644
--- a/packages/flutter/lib/src/cupertino/date_picker.dart
+++ b/packages/flutter/lib/src/cupertino/date_picker.dart
@@ -1021,25 +1021,29 @@ class _CupertinoDatePickerDateTimeState extends State<CupertinoDatePicker> {
 
     // Adds am/pm column if the picker is not using 24h format.
     if (!widget.use24hFormat) {
-      if (localizations.datePickerDateTimeOrder == DatePickerDateTimeOrder.date_time_dayPeriod
-        || localizations.datePickerDateTimeOrder == DatePickerDateTimeOrder.time_dayPeriod_date) {
-        pickerBuilders.add(_buildAmPmPicker);
-        columnWidths.add(_getEstimatedColumnWidth(_PickerColumnType.dayPeriod));
-      } else {
-        pickerBuilders.insert(0, _buildAmPmPicker);
-        columnWidths.insert(0, _getEstimatedColumnWidth(_PickerColumnType.dayPeriod));
+      switch (localizations.datePickerDateTimeOrder) {
+        case DatePickerDateTimeOrder.date_time_dayPeriod:
+        case DatePickerDateTimeOrder.time_dayPeriod_date:
+          pickerBuilders.add(_buildAmPmPicker);
+          columnWidths.add(_getEstimatedColumnWidth(_PickerColumnType.dayPeriod));
+        case DatePickerDateTimeOrder.date_dayPeriod_time:
+        case DatePickerDateTimeOrder.dayPeriod_time_date:
+          pickerBuilders.insert(0, _buildAmPmPicker);
+          columnWidths.insert(0, _getEstimatedColumnWidth(_PickerColumnType.dayPeriod));
       }
     }
 
     // Adds medium date column if the picker's mode is date and time.
     if (widget.mode == CupertinoDatePickerMode.dateAndTime) {
-      if (localizations.datePickerDateTimeOrder == DatePickerDateTimeOrder.time_dayPeriod_date
-          || localizations.datePickerDateTimeOrder == DatePickerDateTimeOrder.dayPeriod_time_date) {
-        pickerBuilders.add(_buildMediumDatePicker);
-        columnWidths.add(_getEstimatedColumnWidth(_PickerColumnType.date));
-      } else {
-        pickerBuilders.insert(0, _buildMediumDatePicker);
-        columnWidths.insert(0, _getEstimatedColumnWidth(_PickerColumnType.date));
+      switch (localizations.datePickerDateTimeOrder) {
+        case DatePickerDateTimeOrder.time_dayPeriod_date:
+        case DatePickerDateTimeOrder.dayPeriod_time_date:
+          pickerBuilders.add(_buildMediumDatePicker);
+          columnWidths.add(_getEstimatedColumnWidth(_PickerColumnType.date));
+        case DatePickerDateTimeOrder.date_time_dayPeriod:
+        case DatePickerDateTimeOrder.date_dayPeriod_time:
+          pickerBuilders.insert(0, _buildMediumDatePicker);
+          columnWidths.insert(0, _getEstimatedColumnWidth(_PickerColumnType.date));
       }
     }
 
diff --git a/packages/flutter/lib/src/cupertino/form_section.dart b/packages/flutter/lib/src/cupertino/form_section.dart
index c3d662575a40..6824a96d0d89 100644
--- a/packages/flutter/lib/src/cupertino/form_section.dart
+++ b/packages/flutter/lib/src/cupertino/form_section.dart
@@ -210,24 +210,29 @@ class CupertinoFormSection extends StatelessWidget {
             ),
             child: footer!);
 
-    return _type == CupertinoListSectionType.base
-        ? CupertinoListSection(
-            header: headerWidget,
-            footer: footerWidget,
-            margin: margin,
-            backgroundColor: backgroundColor,
-            decoration: decoration,
-            clipBehavior: clipBehavior,
-            hasLeading: false,
-            children: children)
-        : CupertinoListSection.insetGrouped(
-            header: headerWidget,
-            footer: footerWidget,
-            margin: margin,
-            backgroundColor: backgroundColor,
-            decoration: decoration,
-            clipBehavior: clipBehavior,
-            hasLeading: false,
-            children: children);
+    switch (_type) {
+      case CupertinoListSectionType.base:
+        return CupertinoListSection(
+          header: headerWidget,
+          footer: footerWidget,
+          margin: margin,
+          backgroundColor: backgroundColor,
+          decoration: decoration,
+          clipBehavior: clipBehavior,
+          hasLeading: false,
+          children: children,
+        );
+      case CupertinoListSectionType.insetGrouped:
+        return CupertinoListSection.insetGrouped(
+          header: headerWidget,
+          footer: footerWidget,
+          margin: margin,
+          backgroundColor: backgroundColor,
+          decoration: decoration,
+          clipBehavior: clipBehavior,
+          hasLeading: false,
+          children: children,
+        );
+    }
   }
 }
diff --git a/packages/flutter/lib/src/gestures/arena.dart b/packages/flutter/lib/src/gestures/arena.dart
index 243f0691c79d..c1d9939dc273 100644
--- a/packages/flutter/lib/src/gestures/arena.dart
+++ b/packages/flutter/lib/src/gestures/arena.dart
@@ -222,22 +222,23 @@ class GestureArenaManager {
     if (state == null) {
       return; // This arena has already resolved.
     }
-    assert(_debugLogDiagnostic(pointer, '${ disposition == GestureDisposition.accepted ? "Accepting" : "Rejecting" }: $member'));
     assert(state.members.contains(member));
-    if (disposition == GestureDisposition.rejected) {
-      state.members.remove(member);
-      member.rejectGesture(pointer);
-      if (!state.isOpen) {
-        _tryToResolveArena(pointer, state);
-      }
-    } else {
-      assert(disposition == GestureDisposition.accepted);
-      if (state.isOpen) {
-        state.eagerWinner ??= member;
-      } else {
-        assert(_debugLogDiagnostic(pointer, 'Self-declared winner: $member'));
-        _resolveInFavorOf(pointer, state, member);
-      }
+    switch (disposition) {
+      case GestureDisposition.accepted:
+        assert(_debugLogDiagnostic(pointer, 'Accepting: $member'));
+        if (state.isOpen) {
+          state.eagerWinner ??= member;
+        } else {
+          assert(_debugLogDiagnostic(pointer, 'Self-declared winner: $member'));
+          _resolveInFavorOf(pointer, state, member);
+        }
+      case GestureDisposition.rejected:
+        assert(_debugLogDiagnostic(pointer, 'Rejecting: $member'));
+        state.members.remove(member);
+        member.rejectGesture(pointer);
+        if (!state.isOpen) {
+          _tryToResolveArena(pointer, state);
+        }
     }
   }
 
diff --git a/packages/flutter/lib/src/gestures/monodrag.dart b/packages/flutter/lib/src/gestures/monodrag.dart
index fbd9eff120d1..571e0049234a 100644
--- a/packages/flutter/lib/src/gestures/monodrag.dart
+++ b/packages/flutter/lib/src/gestures/monodrag.dart
@@ -349,17 +349,20 @@ abstract class DragGestureRecognizer extends OneSequenceGestureRecognizer {
 
   void _addPointer(PointerEvent event) {
     _velocityTrackers[event.pointer] = velocityTrackerBuilder(event);
-    if (_state == _DragState.ready) {
-      _state = _DragState.possible;
-      _initialPosition = OffsetPair(global: event.position, local: event.localPosition);
-      _finalPosition = _initialPosition;
-      _pendingDragOffset = OffsetPair.zero;
-      _globalDistanceMoved = 0.0;
-      _lastPendingEventTimestamp = event.timeStamp;
-      _lastTransform = event.transform;
-      _checkDown();
-    } else if (_state == _DragState.accepted) {
-      resolve(GestureDisposition.accepted);
+    switch (_state) {
+      case _DragState.ready:
+        _state = _DragState.possible;
+        _initialPosition = OffsetPair(global: event.position, local: event.localPosition);
+        _finalPosition = _initialPosition;
+        _pendingDragOffset = OffsetPair.zero;
+        _globalDistanceMoved = 0.0;
+        _lastPendingEventTimestamp = event.timeStamp;
+        _lastTransform = event.transform;
+        _checkDown();
+      case _DragState.possible:
+        break;
+      case _DragState.accepted:
+        resolve(GestureDisposition.accepted);
     }
   }
 
@@ -421,36 +424,37 @@ abstract class DragGestureRecognizer extends OneSequenceGestureRecognizer {
       final Offset position = (event is PointerMoveEvent) ? event.position : (event.position + (event as PointerPanZoomUpdateEvent).pan);
       final Offset localPosition = (event is PointerMoveEvent) ? event.localPosition : (event.localPosition + (event as PointerPanZoomUpdateEvent).localPan);
       _finalPosition = OffsetPair(local: localPosition, global: position);
-      if (_state == _DragState.accepted) {
-        _checkUpdate(
-          sourceTimeStamp: event.timeStamp,
-          delta: _getDeltaForDetails(localDelta),
-          primaryDelta: _getPrimaryValueFromOffset(localDelta),
-          globalPosition: position,
-          localPosition: localPosition,
-        );
-      } else {
-        _pendingDragOffset += OffsetPair(local: localDelta, global: delta);
-        _lastPendingEventTimestamp = event.timeStamp;
-        _lastTransform = event.transform;
-        final Offset movedLocally = _getDeltaForDetails(localDelta);
-        final Matrix4? localToGlobalTransform = event.transform == null ? null : Matrix4.tryInvert(event.transform!);
-        _globalDistanceMoved += PointerEvent.transformDeltaViaPositions(
-          transform: localToGlobalTransform,
-          untransformedDelta: movedLocally,
-          untransformedEndPosition: localPosition
-        ).distance * (_getPrimaryValueFromOffset(movedLocally) ?? 1).sign;
-        if (_hasSufficientGlobalDistanceToAccept(event.kind, gestureSettings?.touchSlop)) {
-          _hasDragThresholdBeenMet = true;
-          if (_acceptedActivePointers.contains(event.pointer)) {
-            _checkDrag(event.pointer);
-          } else {
-            resolve(GestureDisposition.accepted);
+      switch (_state) {
+        case _DragState.ready || _DragState.possible:
+          _pendingDragOffset += OffsetPair(local: localDelta, global: delta);
+          _lastPendingEventTimestamp = event.timeStamp;
+          _lastTransform = event.transform;
+          final Offset movedLocally = _getDeltaForDetails(localDelta);
+          final Matrix4? localToGlobalTransform = event.transform == null ? null : Matrix4.tryInvert(event.transform!);
+          _globalDistanceMoved += PointerEvent.transformDeltaViaPositions(
+            transform: localToGlobalTransform,
+            untransformedDelta: movedLocally,
+            untransformedEndPosition: localPosition
+          ).distance * (_getPrimaryValueFromOffset(movedLocally) ?? 1).sign;
+          if (_hasSufficientGlobalDistanceToAccept(event.kind, gestureSettings?.touchSlop)) {
+            _hasDragThresholdBeenMet = true;
+            if (_acceptedActivePointers.contains(event.pointer)) {
+              _checkDrag(event.pointer);
+            } else {
+              resolve(GestureDisposition.accepted);
+            }
           }
-        }
+        case _DragState.accepted:
+          _checkUpdate(
+            sourceTimeStamp: event.timeStamp,
+            delta: _getDeltaForDetails(localDelta),
+            primaryDelta: _getPrimaryValueFromOffset(localDelta),
+            globalPosition: position,
+            localPosition: localPosition,
+          );
       }
     }
-    if (event is PointerUpEvent || event is PointerCancelEvent || event is PointerPanZoomEndEvent) {
+    if (event case PointerUpEvent() || PointerCancelEvent() || PointerPanZoomEndEvent()) {
       _giveUpPointer(event.pointer);
     }
   }
diff --git a/packages/flutter/lib/src/material/about.dart b/packages/flutter/lib/src/material/about.dart
index 84c3028d5368..a61f3a0d7974 100644
--- a/packages/flutter/lib/src/material/about.dart
+++ b/packages/flutter/lib/src/material/about.dart
@@ -1152,10 +1152,11 @@ class _MasterDetailFlowState extends State<_MasterDetailFlow> implements _PageOp
   @override
   void openDetailPage(Object arguments) {
     _cachedDetailArguments = arguments;
-    if (_builtLayout == _LayoutMode.nested) {
-      _navigatorKey.currentState!.pushNamed(_navDetail, arguments: arguments);
-    } else {
-      focus = _Focus.detail;
+    switch (_builtLayout) {
+      case _LayoutMode.nested:
+        _navigatorKey.currentState!.pushNamed(_navDetail, arguments: arguments);
+      case _LayoutMode.lateral || null:
+        focus = _Focus.detail;
     }
   }
 
diff --git a/packages/flutter/lib/src/material/toggle_buttons.dart b/packages/flutter/lib/src/material/toggle_buttons.dart
index 15117edf6421..06727bcee7b6 100644
--- a/packages/flutter/lib/src/material/toggle_buttons.dart
+++ b/packages/flutter/lib/src/material/toggle_buttons.dart
@@ -455,19 +455,35 @@ class ToggleButtons extends StatelessWidget {
   // Determines if this is the first child that is being laid out
   // by the render object, _not_ the order of the children in its list.
   bool _isFirstButton(int index, int length, TextDirection textDirection) {
-    return index == 0 && ((direction == Axis.horizontal && textDirection == TextDirection.ltr) ||
-      (direction == Axis.vertical && verticalDirection == VerticalDirection.down))
-      || index == length - 1 && ((direction == Axis.horizontal && textDirection == TextDirection.rtl) ||
-      (direction == Axis.vertical && verticalDirection == VerticalDirection.up));
+    switch (direction) {
+      case Axis.horizontal:
+        return switch (textDirection) {
+          TextDirection.rtl => index == length - 1,
+          TextDirection.ltr => index == 0,
+        };
+      case Axis.vertical:
+        return switch (verticalDirection) {
+          VerticalDirection.up   => index == length - 1,
+          VerticalDirection.down => index == 0,
+        };
+    }
   }
 
   // Determines if this is the last child that is being laid out
   // by the render object, _not_ the order of the children in its list.
   bool _isLastButton(int index, int length, TextDirection textDirection) {
-    return index == length - 1 && ((direction == Axis.horizontal && textDirection == TextDirection.ltr) ||
-      (direction == Axis.vertical && verticalDirection == VerticalDirection.down))
-      || index == 0 && ((direction == Axis.horizontal && textDirection == TextDirection.rtl) ||
-      (direction == Axis.vertical && verticalDirection == VerticalDirection.up));
+    switch (direction) {
+      case Axis.horizontal:
+        return switch (textDirection) {
+          TextDirection.rtl => index == 0,
+          TextDirection.ltr => index == length - 1,
+        };
+      case Axis.vertical:
+        return switch (verticalDirection) {
+          VerticalDirection.up   => index == 0,
+          VerticalDirection.down => index == length - 1,
+        };
+    }
   }
 
   BorderRadius _getEdgeBorderRadius(
diff --git a/packages/flutter/lib/src/services/text_input.dart b/packages/flutter/lib/src/services/text_input.dart
index 9bc5babad1c7..1db2dad2e55f 100644
--- a/packages/flutter/lib/src/services/text_input.dart
+++ b/packages/flutter/lib/src/services/text_input.dart
@@ -1795,29 +1795,30 @@ class TextInput {
 
   Future<dynamic> _handleTextInputInvocation(MethodCall methodCall) async {
     final String method = methodCall.method;
-    if (method == 'TextInputClient.focusElement') {
-      final List<dynamic> args = methodCall.arguments as List<dynamic>;
-      _scribbleClients[args[0]]?.onScribbleFocus(Offset((args[1] as num).toDouble(), (args[2] as num).toDouble()));
-      return;
-    } else if (method == 'TextInputClient.requestElementsInRect') {
-      final List<double> args = (methodCall.arguments as List<dynamic>).cast<num>().map<double>((num value) => value.toDouble()).toList();
-      return _scribbleClients.keys.where((String elementIdentifier) {
-        final Rect rect = Rect.fromLTWH(args[0], args[1], args[2], args[3]);
-        if (!(_scribbleClients[elementIdentifier]?.isInScribbleRect(rect) ?? false)) {
-          return false;
-        }
-        final Rect bounds = _scribbleClients[elementIdentifier]?.bounds ?? Rect.zero;
-        return !(bounds == Rect.zero || bounds.hasNaN || bounds.isInfinite);
-      }).map((String elementIdentifier) {
-        final Rect bounds = _scribbleClients[elementIdentifier]!.bounds;
-        return <dynamic>[elementIdentifier, ...<dynamic>[bounds.left, bounds.top, bounds.width, bounds.height]];
-      }).toList();
-    } else if (method == 'TextInputClient.scribbleInteractionBegan') {
-      _scribbleInProgress = true;
-      return;
-    } else if (method == 'TextInputClient.scribbleInteractionFinished') {
-      _scribbleInProgress = false;
-      return;
+    switch (methodCall.method) {
+      case 'TextInputClient.focusElement':
+        final List<dynamic> args = methodCall.arguments as List<dynamic>;
+        _scribbleClients[args[0]]?.onScribbleFocus(Offset((args[1] as num).toDouble(), (args[2] as num).toDouble()));
+        return;
+      case 'TextInputClient.requestElementsInRect':
+        final List<double> args = (methodCall.arguments as List<dynamic>).cast<num>().map<double>((num value) => value.toDouble()).toList();
+        return _scribbleClients.keys.where((String elementIdentifier) {
+          final Rect rect = Rect.fromLTWH(args[0], args[1], args[2], args[3]);
+          if (!(_scribbleClients[elementIdentifier]?.isInScribbleRect(rect) ?? false)) {
+            return false;
+          }
+          final Rect bounds = _scribbleClients[elementIdentifier]?.bounds ?? Rect.zero;
+          return !(bounds == Rect.zero || bounds.hasNaN || bounds.isInfinite);
+        }).map((String elementIdentifier) {
+          final Rect bounds = _scribbleClients[elementIdentifier]!.bounds;
+          return <dynamic>[elementIdentifier, ...<dynamic>[bounds.left, bounds.top, bounds.width, bounds.height]];
+        }).toList();
+      case 'TextInputClient.scribbleInteractionBegan':
+        _scribbleInProgress = true;
+        return;
+      case 'TextInputClient.scribbleInteractionFinished':
+        _scribbleInProgress = false;
+        return;
     }
     if (_currentConnection == null) {
       return;
diff --git a/packages/flutter/lib/src/widgets/interactive_viewer.dart b/packages/flutter/lib/src/widgets/interactive_viewer.dart
index f6d30711007c..80acec006442 100644
--- a/packages/flutter/lib/src/widgets/interactive_viewer.dart
+++ b/packages/flutter/lib/src/widgets/interactive_viewer.dart
@@ -871,59 +871,62 @@ class _InteractiveViewerState extends State<InteractiveViewer> with TickerProvid
       return;
     }
 
-    if (_gestureType == _GestureType.pan) {
-      if (details.velocity.pixelsPerSecond.distance < kMinFlingVelocity) {
-        _currentAxis = null;
-        return;
-      }
-      final Vector3 translationVector = _transformationController!.value.getTranslation();
-      final Offset translation = Offset(translationVector.x, translationVector.y);
-      final FrictionSimulation frictionSimulationX = FrictionSimulation(
-        widget.interactionEndFrictionCoefficient,
-        translation.dx,
-        details.velocity.pixelsPerSecond.dx,
-      );
-      final FrictionSimulation frictionSimulationY = FrictionSimulation(
-        widget.interactionEndFrictionCoefficient,
-        translation.dy,
-        details.velocity.pixelsPerSecond.dy,
-      );
-      final double tFinal = _getFinalTime(
-        details.velocity.pixelsPerSecond.distance,
-        widget.interactionEndFrictionCoefficient,
-      );
-      _animation = Tween<Offset>(
-        begin: translation,
-        end: Offset(frictionSimulationX.finalX, frictionSimulationY.finalX),
-      ).animate(CurvedAnimation(
-        parent: _controller,
-        curve: Curves.decelerate,
-      ));
-      _controller.duration = Duration(milliseconds: (tFinal * 1000).round());
-      _animation!.addListener(_onAnimate);
-      _controller.forward();
-    } else if (_gestureType == _GestureType.scale) {
-      if (details.scaleVelocity.abs() < 0.1) {
-        _currentAxis = null;
-        return;
-      }
-      final double scale = _transformationController!.value.getMaxScaleOnAxis();
-      final FrictionSimulation frictionSimulation = FrictionSimulation(
-        widget.interactionEndFrictionCoefficient * widget.scaleFactor,
-        scale,
-        details.scaleVelocity / 10
-      );
-      final double tFinal = _getFinalTime(details.scaleVelocity.abs(), widget.interactionEndFrictionCoefficient, effectivelyMotionless: 0.1);
-      _scaleAnimation = Tween<double>(
-        begin: scale,
-        end: frictionSimulation.x(tFinal)
-      ).animate(CurvedAnimation(
-        parent: _scaleController,
-        curve: Curves.decelerate
-      ));
-      _scaleController.duration = Duration(milliseconds: (tFinal * 1000).round());
-      _scaleAnimation!.addListener(_onScaleAnimate);
-      _scaleController.forward();
+    switch (_gestureType) {
+      case _GestureType.pan:
+        if (details.velocity.pixelsPerSecond.distance < kMinFlingVelocity) {
+          _currentAxis = null;
+          return;
+        }
+        final Vector3 translationVector = _transformationController!.value.getTranslation();
+        final Offset translation = Offset(translationVector.x, translationVector.y);
+        final FrictionSimulation frictionSimulationX = FrictionSimulation(
+          widget.interactionEndFrictionCoefficient,
+          translation.dx,
+          details.velocity.pixelsPerSecond.dx,
+        );
+        final FrictionSimulation frictionSimulationY = FrictionSimulation(
+          widget.interactionEndFrictionCoefficient,
+          translation.dy,
+          details.velocity.pixelsPerSecond.dy,
+        );
+        final double tFinal = _getFinalTime(
+          details.velocity.pixelsPerSecond.distance,
+          widget.interactionEndFrictionCoefficient,
+        );
+        _animation = Tween<Offset>(
+          begin: translation,
+          end: Offset(frictionSimulationX.finalX, frictionSimulationY.finalX),
+        ).animate(CurvedAnimation(
+          parent: _controller,
+          curve: Curves.decelerate,
+        ));
+        _controller.duration = Duration(milliseconds: (tFinal * 1000).round());
+        _animation!.addListener(_onAnimate);
+        _controller.forward();
+      case _GestureType.scale:
+        if (details.scaleVelocity.abs() < 0.1) {
+          _currentAxis = null;
+          return;
+        }
+        final double scale = _transformationController!.value.getMaxScaleOnAxis();
+        final FrictionSimulation frictionSimulation = FrictionSimulation(
+          widget.interactionEndFrictionCoefficient * widget.scaleFactor,
+          scale,
+          details.scaleVelocity / 10
+        );
+        final double tFinal = _getFinalTime(details.scaleVelocity.abs(), widget.interactionEndFrictionCoefficient, effectivelyMotionless: 0.1);
+        _scaleAnimation = Tween<double>(
+          begin: scale,
+          end: frictionSimulation.x(tFinal)
+        ).animate(CurvedAnimation(
+          parent: _scaleController,
+          curve: Curves.decelerate
+        ));
+        _scaleController.duration = Duration(milliseconds: (tFinal * 1000).round());
+        _scaleAnimation!.addListener(_onScaleAnimate);
+        _scaleController.forward();
+      case _GestureType.rotate || null:
+        break;
     }
   }
 
diff --git a/packages/flutter/test/material/mergeable_material_test.dart b/packages/flutter/test/material/mergeable_material_test.dart
index b9de0f7f1ecf..4b7c49ab2a55 100644
--- a/packages/flutter/test/material/mergeable_material_test.dart
+++ b/packages/flutter/test/material/mergeable_material_test.dart
@@ -14,38 +14,40 @@ enum RadiusType {
 void matches(BorderRadius? borderRadius, RadiusType top, RadiusType bottom) {
   final Radius cardRadius = kMaterialEdges[MaterialType.card]!.topLeft;
 
-  if (top == RadiusType.Sharp) {
-    expect(borderRadius?.topLeft, equals(Radius.zero));
-    expect(borderRadius?.topRight, equals(Radius.zero));
-  } else if (top == RadiusType.Shifting) {
-    expect(borderRadius?.topLeft.x, greaterThan(0.0));
-    expect(borderRadius?.topLeft.x, lessThan(cardRadius.x));
-    expect(borderRadius?.topLeft.y, greaterThan(0.0));
-    expect(borderRadius?.topLeft.y, lessThan(cardRadius.y));
-    expect(borderRadius?.topRight.x, greaterThan(0.0));
-    expect(borderRadius?.topRight.x, lessThan(cardRadius.x));
-    expect(borderRadius?.topRight.y, greaterThan(0.0));
-    expect(borderRadius?.topRight.y, lessThan(cardRadius.y));
-  } else {
-    expect(borderRadius?.topLeft, equals(cardRadius));
-    expect(borderRadius?.topRight, equals(cardRadius));
+  switch (top) {
+    case RadiusType.Sharp:
+      expect(borderRadius?.topLeft, equals(Radius.zero));
+      expect(borderRadius?.topRight, equals(Radius.zero));
+    case RadiusType.Shifting:
+      expect(borderRadius?.topLeft.x, greaterThan(0.0));
+      expect(borderRadius?.topLeft.x, lessThan(cardRadius.x));
+      expect(borderRadius?.topLeft.y, greaterThan(0.0));
+      expect(borderRadius?.topLeft.y, lessThan(cardRadius.y));
+      expect(borderRadius?.topRight.x, greaterThan(0.0));
+      expect(borderRadius?.topRight.x, lessThan(cardRadius.x));
+      expect(borderRadius?.topRight.y, greaterThan(0.0));
+      expect(borderRadius?.topRight.y, lessThan(cardRadius.y));
+    case RadiusType.Round:
+      expect(borderRadius?.topLeft, equals(cardRadius));
+      expect(borderRadius?.topRight, equals(cardRadius));
   }
 
-  if (bottom == RadiusType.Sharp) {
-    expect(borderRadius?.bottomLeft, equals(Radius.zero));
-    expect(borderRadius?.bottomRight, equals(Radius.zero));
-  } else if (bottom == RadiusType.Shifting) {
-    expect(borderRadius?.bottomLeft.x, greaterThan(0.0));
-    expect(borderRadius?.bottomLeft.x, lessThan(cardRadius.x));
-    expect(borderRadius?.bottomLeft.y, greaterThan(0.0));
-    expect(borderRadius?.bottomLeft.y, lessThan(cardRadius.y));
-    expect(borderRadius?.bottomRight.x, greaterThan(0.0));
-    expect(borderRadius?.bottomRight.x, lessThan(cardRadius.x));
-    expect(borderRadius?.bottomRight.y, greaterThan(0.0));
-    expect(borderRadius?.bottomRight.y, lessThan(cardRadius.y));
-  } else {
-    expect(borderRadius?.bottomLeft, equals(cardRadius));
-    expect(borderRadius?.bottomRight, equals(cardRadius));
+  switch (bottom) {
+    case RadiusType.Sharp:
+      expect(borderRadius?.bottomLeft, equals(Radius.zero));
+      expect(borderRadius?.bottomRight, equals(Radius.zero));
+    case RadiusType.Shifting:
+      expect(borderRadius?.bottomLeft.x, greaterThan(0.0));
+      expect(borderRadius?.bottomLeft.x, lessThan(cardRadius.x));
+      expect(borderRadius?.bottomLeft.y, greaterThan(0.0));
+      expect(borderRadius?.bottomLeft.y, lessThan(cardRadius.y));
+      expect(borderRadius?.bottomRight.x, greaterThan(0.0));
+      expect(borderRadius?.bottomRight.x, lessThan(cardRadius.x));
+      expect(borderRadius?.bottomRight.y, greaterThan(0.0));
+      expect(borderRadius?.bottomRight.y, lessThan(cardRadius.y));
+    case RadiusType.Round:
+      expect(borderRadius?.bottomLeft, equals(cardRadius));
+      expect(borderRadius?.bottomRight, equals(cardRadius));
   }
 }
 
diff --git a/packages/flutter_test/lib/src/test_text_input_key_handler.dart b/packages/flutter_test/lib/src/test_text_input_key_handler.dart
index 7dba935d6579..1292fe3d12cb 100644
--- a/packages/flutter_test/lib/src/test_text_input_key_handler.dart
+++ b/packages/flutter_test/lib/src/test_text_input_key_handler.dart
@@ -221,56 +221,57 @@ class MacOSTestTextInputKeyHandler extends TestTextInputKeyHandler {
 
   @override
   Future<void> handleKeyDownEvent(LogicalKeyboardKey key) async {
-    if (key == LogicalKeyboardKey.shift ||
-        key == LogicalKeyboardKey.shiftLeft ||
-        key == LogicalKeyboardKey.shiftRight) {
-      _shift = true;
-    } else if (key == LogicalKeyboardKey.alt ||
-        key == LogicalKeyboardKey.altLeft ||
-        key == LogicalKeyboardKey.altRight) {
-      _alt = true;
-    } else if (key == LogicalKeyboardKey.meta ||
-        key == LogicalKeyboardKey.metaLeft ||
-        key == LogicalKeyboardKey.metaRight) {
-      _meta = true;
-    } else if (key == LogicalKeyboardKey.control ||
-        key == LogicalKeyboardKey.controlLeft ||
-        key == LogicalKeyboardKey.controlRight) {
-      _control = true;
-    } else {
-      for (final MapEntry<SingleActivator, List<String>> entry
-          in _macOSActivatorToSelectors.entries) {
-        final SingleActivator activator = entry.key;
-        if (activator.triggers.first == key &&
-            activator.shift == _shift &&
-            activator.alt == _alt &&
-            activator.meta == _meta &&
-            activator.control == _control) {
-          await _sendSelectors(entry.value);
-          return;
+    switch (key) {
+      case LogicalKeyboardKey.shift:
+      case LogicalKeyboardKey.shiftLeft:
+      case LogicalKeyboardKey.shiftRight:
+        _shift = true;
+      case LogicalKeyboardKey.alt:
+      case LogicalKeyboardKey.altLeft:
+      case LogicalKeyboardKey.altRight:
+        _alt = true;
+      case LogicalKeyboardKey.meta:
+      case LogicalKeyboardKey.metaLeft:
+      case LogicalKeyboardKey.metaRight:
+        _meta = true;
+      case LogicalKeyboardKey.control:
+      case LogicalKeyboardKey.controlLeft:
+      case LogicalKeyboardKey.controlRight:
+        _control = true;
+      default:
+        for (final MapEntry<SingleActivator, List<String>> entry in _macOSActivatorToSelectors.entries) {
+          final SingleActivator activator = entry.key;
+          if (activator.triggers.first == key &&
+              activator.shift == _shift &&
+              activator.alt == _alt &&
+              activator.meta == _meta &&
+              activator.control == _control) {
+            await _sendSelectors(entry.value);
+            return;
+          }
         }
-      }
     }
   }
 
   @override
   Future<void> handleKeyUpEvent(LogicalKeyboardKey key) async {
-    if (key == LogicalKeyboardKey.shift ||
-        key == LogicalKeyboardKey.shiftLeft ||
-        key == LogicalKeyboardKey.shiftRight) {
-      _shift = false;
-    } else if (key == LogicalKeyboardKey.alt ||
-        key == LogicalKeyboardKey.altLeft ||
-        key == LogicalKeyboardKey.altRight) {
-      _alt = false;
-    } else if (key == LogicalKeyboardKey.meta ||
-        key == LogicalKeyboardKey.metaLeft ||
-        key == LogicalKeyboardKey.metaRight) {
-      _meta = false;
-    } else if (key == LogicalKeyboardKey.control ||
-        key == LogicalKeyboardKey.controlLeft ||
-        key == LogicalKeyboardKey.controlRight) {
-      _control = false;
+    switch (key) {
+      case LogicalKeyboardKey.shift:
+      case LogicalKeyboardKey.shiftLeft:
+      case LogicalKeyboardKey.shiftRight:
+        _shift = false;
+      case LogicalKeyboardKey.alt:
+      case LogicalKeyboardKey.altLeft:
+      case LogicalKeyboardKey.altRight:
+        _alt = false;
+      case LogicalKeyboardKey.meta:
+      case LogicalKeyboardKey.metaLeft:
+      case LogicalKeyboardKey.metaRight:
+        _meta = false;
+      case LogicalKeyboardKey.control:
+      case LogicalKeyboardKey.controlLeft:
+      case LogicalKeyboardKey.controlRight:
+        _control = false;
     }
   }
 
diff --git a/packages/flutter_tools/lib/src/android/android_device_discovery.dart b/packages/flutter_tools/lib/src/android/android_device_discovery.dart
index e41d0a061dfa..9d2fd5ef9981 100644
--- a/packages/flutter_tools/lib/src/android/android_device_discovery.dart
+++ b/packages/flutter_tools/lib/src/android/android_device_discovery.dart
@@ -165,25 +165,26 @@ class AndroidDevices extends PollingDeviceDiscovery {
           info['model'] = cleanAdbDeviceName(model);
         }
 
-        if (deviceState == 'unauthorized') {
-          diagnostics?.add(
-            'Device $deviceID is not authorized.\n'
-            'You might need to check your device for an authorization dialog.'
-          );
-        } else if (deviceState == 'offline') {
-          diagnostics?.add('Device $deviceID is offline.');
-        } else {
-          devices?.add(AndroidDevice(
-            deviceID,
-            productID: info['product'],
-            modelID: info['model'] ?? deviceID,
-            deviceCodeName: info['device'],
-            androidSdk: _androidSdk!,
-            fileSystem: _fileSystem,
-            logger: _logger,
-            platform: _platform,
-            processManager: _processManager,
-          ));
+        switch (deviceState) {
+          case 'unauthorized':
+            diagnostics?.add(
+              'Device $deviceID is not authorized.\n'
+              'You might need to check your device for an authorization dialog.'
+            );
+          case 'offline':
+            diagnostics?.add('Device $deviceID is offline.');
+          default:
+            devices?.add(AndroidDevice(
+              deviceID,
+              productID: info['product'],
+              modelID: info['model'] ?? deviceID,
+              deviceCodeName: info['device'],
+              androidSdk: _androidSdk!,
+              fileSystem: _fileSystem,
+              logger: _logger,
+              platform: _platform,
+              processManager: _processManager,
+            ));
         }
       } else {
         diagnostics?.add(
diff --git a/packages/flutter_tools/lib/src/commands/create.dart b/packages/flutter_tools/lib/src/commands/create.dart
index 0e3972e58340..e470fa222dce 100644
--- a/packages/flutter_tools/lib/src/commands/create.dart
+++ b/packages/flutter_tools/lib/src/commands/create.dart
@@ -866,10 +866,11 @@ void _printWarningDisabledPlatform(List<String> platforms) {
   final List<String> web = <String>[];
 
   for (final String platform in platforms) {
-    if (platform == 'web') {
-      web.add(platform);
-    } else if (platform == 'macos' || platform == 'windows' || platform == 'linux') {
-      desktop.add(platform);
+    switch (platform) {
+      case 'web':
+        web.add(platform);
+      case 'macos' || 'windows' || 'linux':
+        desktop.add(platform);
     }
   }
 
diff --git a/packages/flutter_tools/lib/src/dart/analysis.dart b/packages/flutter_tools/lib/src/dart/analysis.dart
index 5e3e01d1556d..119d1c4dd002 100644
--- a/packages/flutter_tools/lib/src/dart/analysis.dart
+++ b/packages/flutter_tools/lib/src/dart/analysis.dart
@@ -152,12 +152,13 @@ class AnalysisServer {
         }
 
         if (paramsMap != null) {
-          if (event == 'server.status') {
-            _handleStatus(paramsMap);
-          } else if (event == 'analysis.errors') {
-            _handleAnalysisIssues(paramsMap);
-          } else if (event == 'server.error') {
-            _handleServerError(paramsMap);
+          switch (event) {
+            case 'server.status':
+              _handleStatus(paramsMap);
+            case 'analysis.errors':
+              _handleAnalysisIssues(paramsMap);
+            case 'server.error':
+              _handleServerError(paramsMap);
           }
         }
       } else if (response['error'] != null) {
diff --git a/packages/flutter_tools/lib/src/resident_runner.dart b/packages/flutter_tools/lib/src/resident_runner.dart
index 1e73e423259c..4e9b38bfec19 100644
--- a/packages/flutter_tools/lib/src/resident_runner.dart
+++ b/packages/flutter_tools/lib/src/resident_runner.dart
@@ -120,18 +120,22 @@ class FlutterDevice {
       // TODO(zanderso): consistently provide these flags across platforms.
       final String platformDillName;
       final List<String> extraFrontEndOptions = List<String>.of(buildInfo.extraFrontEndOptions);
-      if (buildInfo.nullSafetyMode == NullSafetyMode.unsound) {
-        platformDillName = 'ddc_outline.dill';
-        if (!extraFrontEndOptions.contains('--no-sound-null-safety')) {
-          extraFrontEndOptions.add('--no-sound-null-safety');
-        }
-      } else if (buildInfo.nullSafetyMode == NullSafetyMode.sound) {
-        platformDillName = 'ddc_outline_sound.dill';
-        if (!extraFrontEndOptions.contains('--sound-null-safety')) {
-          extraFrontEndOptions.add('--sound-null-safety');
-        }
-      } else {
-        throw StateError('Expected buildInfo.nullSafetyMode to be one of unsound or sound, got ${buildInfo.nullSafetyMode}');
+      switch (buildInfo.nullSafetyMode) {
+        case NullSafetyMode.unsound:
+          platformDillName = 'ddc_outline.dill';
+          if (!extraFrontEndOptions.contains('--no-sound-null-safety')) {
+            extraFrontEndOptions.add('--no-sound-null-safety');
+          }
+        case NullSafetyMode.sound:
+          platformDillName = 'ddc_outline_sound.dill';
+          if (!extraFrontEndOptions.contains('--sound-null-safety')) {
+            extraFrontEndOptions.add('--sound-null-safety');
+          }
+        case NullSafetyMode.autodetect:
+          throw StateError(
+            'Expected buildInfo.nullSafetyMode to be one of unsound or sound, '
+            'got NullSafetyMode.autodetect',
+          );
       }
 
       final String platformDillPath = globals.fs.path.join(
diff --git a/packages/flutter_tools/lib/src/run_hot.dart b/packages/flutter_tools/lib/src/run_hot.dart
index d1ee30316b4e..5552a4acaeb4 100644
--- a/packages/flutter_tools/lib/src/run_hot.dart
+++ b/packages/flutter_tools/lib/src/run_hot.dart
@@ -146,19 +146,20 @@ class HotRunner extends ResidentRunner {
       return;
     }
 
-    if (flutterDevices.length == 1) {
-      final Device device = flutterDevices.first.device!;
-      _targetPlatform = getNameForTargetPlatform(await device.targetPlatform);
-      _sdkName = await device.sdkNameAndVersion;
-      _emulator = await device.isLocalEmulator;
-    } else if (flutterDevices.length > 1) {
-      _targetPlatform = 'multiple';
-      _sdkName = 'multiple';
-      _emulator = false;
-    } else {
-      _targetPlatform = 'unknown';
-      _sdkName = 'unknown';
-      _emulator = false;
+    switch (flutterDevices.length) {
+      case 1:
+        final Device device = flutterDevices.first.device!;
+        _targetPlatform = getNameForTargetPlatform(await device.targetPlatform);
+        _sdkName = await device.sdkNameAndVersion;
+        _emulator = await device.isLocalEmulator;
+      case > 1:
+        _targetPlatform = 'multiple';
+        _sdkName = 'multiple';
+        _emulator = false;
+      default:
+        _targetPlatform = 'unknown';
+        _sdkName = 'unknown';
+        _emulator = false;
     }
   }
 
diff --git a/packages/flutter_tools/lib/src/test/web_test_compiler.dart b/packages/flutter_tools/lib/src/test/web_test_compiler.dart
index 7787a5ff7bf4..0c82b7eaab5e 100644
--- a/packages/flutter_tools/lib/src/test/web_test_compiler.dart
+++ b/packages/flutter_tools/lib/src/test/web_test_compiler.dart
@@ -57,17 +57,18 @@ class WebTestCompiler {
     // TODO(zanderso): to support autodetect this would need to partition the source code into
     // a sound and unsound set and perform separate compilations
     final List<String> extraFrontEndOptions = List<String>.of(buildInfo.extraFrontEndOptions);
-    if (buildInfo.nullSafetyMode == NullSafetyMode.unsound || buildInfo.nullSafetyMode == NullSafetyMode.autodetect) {
-      platformDillName = 'ddc_outline.dill';
-      if (!extraFrontEndOptions.contains('--no-sound-null-safety')) {
-        extraFrontEndOptions.add('--no-sound-null-safety');
-      }
-    } else if (buildInfo.nullSafetyMode == NullSafetyMode.sound) {
-      languageVersion = currentLanguageVersion(_fileSystem, Cache.flutterRoot!);
-      platformDillName = 'ddc_outline_sound.dill';
-      if (!extraFrontEndOptions.contains('--sound-null-safety')) {
-        extraFrontEndOptions.add('--sound-null-safety');
-      }
+    switch (buildInfo.nullSafetyMode) {
+      case NullSafetyMode.unsound || NullSafetyMode.autodetect:
+        platformDillName = 'ddc_outline.dill';
+        if (!extraFrontEndOptions.contains('--no-sound-null-safety')) {
+          extraFrontEndOptions.add('--no-sound-null-safety');
+        }
+      case NullSafetyMode.sound:
+        languageVersion = currentLanguageVersion(_fileSystem, Cache.flutterRoot!);
+        platformDillName = 'ddc_outline_sound.dill';
+        if (!extraFrontEndOptions.contains('--sound-null-safety')) {
+          extraFrontEndOptions.add('--sound-null-safety');
+        }
     }
 
     final String platformDillPath = _fileSystem.path.join(
diff --git a/packages/flutter_tools/test/integration.shard/isolated/native_assets_test.dart b/packages/flutter_tools/test/integration.shard/isolated/native_assets_test.dart
index eb5f9f1e7266..898fa92185ac 100644
--- a/packages/flutter_tools/test/integration.shard/isolated/native_assets_test.dart
+++ b/packages/flutter_tools/test/integration.shard/isolated/native_assets_test.dart
@@ -147,12 +147,13 @@ void main() {
           // shadow the exception we would have gotten.
           expect(stdout, isNot(contains('EXCEPTION CAUGHT BY WIDGETS LIBRARY')));
 
-          if (device == 'macos') {
-            expectDylibIsBundledMacOS(exampleDirectory, buildMode);
-          } else if (device == 'linux') {
-            expectDylibIsBundledLinux(exampleDirectory, buildMode);
-          } else if (device == 'windows') {
-            expectDylibIsBundledWindows(exampleDirectory, buildMode);
+          switch (device) {
+            case 'macos':
+              expectDylibIsBundledMacOS(exampleDirectory, buildMode);
+            case 'linux':
+              expectDylibIsBundledLinux(exampleDirectory, buildMode);
+            case 'windows':
+              expectDylibIsBundledWindows(exampleDirectory, buildMode);
           }
           if (device == hostOs) {
             expectCCompilerIsConfigured(exampleDirectory);
@@ -203,16 +204,17 @@ void main() {
             throw Exception('flutter build failed: ${result.exitCode}\n${result.stderr}\n${result.stdout}');
           }
 
-          if (buildSubcommand == 'macos') {
-            expectDylibIsBundledMacOS(exampleDirectory, buildMode);
-          } else if (buildSubcommand == 'ios') {
-            expectDylibIsBundledIos(exampleDirectory, buildMode);
-          } else if (buildSubcommand == 'linux') {
-            expectDylibIsBundledLinux(exampleDirectory, buildMode);
-          } else if (buildSubcommand == 'windows') {
-            expectDylibIsBundledWindows(exampleDirectory, buildMode);
-          } else if (buildSubcommand == 'apk') {
-            expectDylibIsBundledAndroid(exampleDirectory, buildMode);
+          switch (buildSubcommand) {
+            case 'macos':
+              expectDylibIsBundledMacOS(exampleDirectory, buildMode);
+            case 'ios':
+              expectDylibIsBundledIos(exampleDirectory, buildMode);
+            case 'linux':
+              expectDylibIsBundledLinux(exampleDirectory, buildMode);
+            case 'windows':
+              expectDylibIsBundledWindows(exampleDirectory, buildMode);
+            case 'apk':
+              expectDylibIsBundledAndroid(exampleDirectory, buildMode);
           }
           expectCCompilerIsConfigured(exampleDirectory);
         });