update

@@ -51,7 +51,7 @@ android {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "pub.yiyan.parlando.Parlando"
         minSdkVersion 21
-        targetSdkVersion 30
+        targetSdkVersion 31
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
         multiDexEnabled true
@@ -78,5 +78,5 @@ flutter {
 }
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
 }

@@ -10,6 +10,7 @@
         <activity
             android:name=".MainActivity"
             android:launchMode="singleTop"
+            android:exported="true"
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"

+import 'package:event_bus/event_bus.dart';
+
+EventBus eventBus = EventBus();
+
+class TransEvent {
+  TransEvent();
+}

+import 'package:Parlando/events/trans_event.dart';
+import 'package:Parlando/poem/poem_router.dart';
+import 'package:Parlando/routers/fluro_navigator.dart';
+import 'package:Parlando/widgets/radial/flutter_radial_menu.dart';
 import 'package:flutter/material.dart';
 import 'package:Parlando/account/page/account_page.dart';
 import 'package:Parlando/poem/page/poem_page.dart';
@@ -13,13 +17,51 @@ class Home extends StatefulWidget {
   _HomeState createState() => _HomeState();
 }
 
+enum MenuOptions {
+  audio,
+  video,
+}
+
 class _HomeState extends State<Home> with RestorationMixin {
   late List<Widget> _pageList;
   final PageController _pageController = PageController();
 
   HomeProvider provider = HomeProvider();
+  final GlobalKey<RadialMenuState> _menuKey = GlobalKey<RadialMenuState>();
+  final List<RadialMenuItem<MenuOptions>> items = <RadialMenuItem<MenuOptions>>[
+    const RadialMenuItem<MenuOptions>(
+      tooltip: 'audio',
+      value: MenuOptions.audio,
+      child: Icon(
+        Icons.mic_none_outlined,
+      ),
+      iconColor: Colors.white,
+      backgroundColor: Colors.blue,
+    ),
+    const RadialMenuItem<MenuOptions>(
+      tooltip: "video",
+      value: MenuOptions.video,
+      child: Icon(
+        Icons.video_call_outlined,
+      ),
+      iconColor: Colors.white,
+      backgroundColor: Colors.green,
+    ),
+  ];
 
-  List<BottomNavigationBarItem>? _list;
+  void _onItemSelected(MenuOptions value) {
+    if (value == MenuOptions.video) {
+      NavigatorUtils.push(
+        context,
+        '${PoemRouter.poemRecordAudioPage}?id=100',
+      );
+    } else if (value == MenuOptions.audio) {
+      NavigatorUtils.push(
+        context,
+        '${PoemRouter.poemRecordVideoPage}?data=100',
+      );
+    }
+  }
 
   @override
   void initState() {
@@ -47,21 +89,36 @@ class _HomeState extends State<Home> with RestorationMixin {
       child: DoubleTapBackExitApp(
         child: Scaffold(
           floatingActionButton: FloatingActionButton(
-            onPressed: () {},
+            onPressed: () {
+              eventBus.fire(TransEvent());
+              NavigatorUtils.push(
+                context,
+                '${PoemRouter.poemRecordVideoPage}?data=100',
+              );
+            },
             tooltip: "发一言",
             backgroundColor: Colors.white,
             child: const Icon(
-              Icons.add,
+              Icons.video_call_outlined,
               color: Colors.black45,
             ),
           ),
+          // floatingActionButton: SizedBox(
+          //   height: 60,
+          //   child: RadialMenu(
+          //     key: _menuKey,
+          //     items: items,
+          //     radius: 80.0,
+          //     onSelected: _onItemSelected,
+          //       progressAnimationDuration:const Duration(milliseconds: 1),
+          //   ),
+          // ),
           floatingActionButtonLocation:
               FloatingActionButtonLocation.centerDocked,
           bottomNavigationBar: Consumer<HomeProvider>(
             builder: (_, provider, __) {
               return BottomAppBar(
                 color: Colors.black45,
-                shape: const CircularNotchedRectangle(),
                 child: Row(
                     mainAxisSize: MainAxisSize.max,
                     mainAxisAlignment: MainAxisAlignment.spaceAround,
@@ -109,7 +166,6 @@ class _HomeState extends State<Home> with RestorationMixin {
                         ),
                       ),
                     ]),
-                elevation: 5.0,
               );
             },
           ),

@@ -8,7 +8,6 @@ import 'package:Parlando/poem/widgets/poem_user_comments.dart';
 import 'package:Parlando/res/gaps.dart';
 import 'package:Parlando/routers/fluro_navigator.dart';
 import 'package:Parlando/util/image_utils.dart';
-import 'package:Parlando/widgets/bars/home_action_bar.dart';
 import 'package:Parlando/widgets/bars/home_menu_bar.dart';
 import 'package:Parlando/widgets/my_app_bar.dart';
 

+import 'dart:async';
+
+import 'package:Parlando/events/trans_event.dart';
 import 'package:flutter/material.dart';
 import 'package:Parlando/category/category_router.dart';
 import 'package:Parlando/poem/poem_router.dart';
@@ -34,6 +37,7 @@ class _PoemPageState extends State<PoemPage> with WidgetsBindingObserver {
   final TikTokVideoListController _videoListController =
       TikTokVideoListController();
   List<UserVideo> videoDataList = [];
+  late StreamSubscription bus;
 
   @override
   void didChangeAppLifecycleState(AppLifecycleState state) async {
@@ -46,6 +50,7 @@ class _PoemPageState extends State<PoemPage> with WidgetsBindingObserver {
   void dispose() {
     WidgetsBinding.instance!.removeObserver(this);
     _videoListController.currentPlayer.pause();
+    bus.cancel();
     super.dispose();
   }
 
@@ -58,19 +63,19 @@ class _PoemPageState extends State<PoemPage> with WidgetsBindingObserver {
       initialList: videoDataList
           .map(
             (e) => VPVideoController(
-              videoInfo: e,
-              builder: () => VideoPlayerController.asset(e.url),
-            ),
-          )
+          videoInfo: e,
+          builder: () => VideoPlayerController.asset(e.url),
+        ),
+      )
           .toList(),
       videoProvider: (int index, List<VPVideoController> list) async {
         return videoDataList
             .map(
               (e) => VPVideoController(
-                videoInfo: e,
-                builder: () => VideoPlayerController.asset(e.url),
-              ),
-            )
+            videoInfo: e,
+            builder: () => VideoPlayerController.asset(e.url),
+          ),
+        )
             .toList();
       },
     );
@@ -87,6 +92,10 @@ class _PoemPageState extends State<PoemPage> with WidgetsBindingObserver {
       },
     );
 
+    bus = eventBus.on<TransEvent>().listen((event) {
+      _videoListController.currentPlayer.pause();
+    });
+
     super.initState();
   }
 
@@ -167,7 +176,7 @@ class _PoemPageState extends State<PoemPage> with WidgetsBindingObserver {
               Widget poem = TikTokVidePoem(
                 title: "每日一言",
                 poem:
-                    "清晨入古寺，初日照高林。\n曲径通幽处，禅房花木深。\n山光悦鸟性，潭影空人心。\n万籁此都寂，但余钟磬音。\n",
+                "清晨入古寺，初日照高林。\n曲径通幽处，禅房花木深。\n山光悦鸟性，潭影空人心。\n万籁此都寂，但余钟磬音。\n",
                 author: "----《题破山寺后禅院》常建",
                 onShowDetail: () {
                   tkController.animateToPage(TikTokPagePosition.right);

+library flutter_radial_menu;
+
+export 'src/radial_menu.dart';
+export 'src/radial_menu_item.dart';

+import 'dart:math' as Math;
+
+import 'package:flutter/material.dart';
+
+/// Draws an [ActionIcon] and [_ArcProgressPainter] that represent an active action.
+/// As the provided [Animation] progresses the ActionArc grows into a full
+/// circle and the ActionIcon moves along it.
+class ArcProgressIndicator extends StatelessWidget {
+  // required
+  final Animation<double> controller;
+  final double radius;
+
+  // optional
+  final double startAngle;
+  final double? width;
+
+  /// The color to use when filling the arc.
+  ///
+  /// Defaults to the accent color of the current theme.
+  final Color? color;
+  final IconData icon;
+  final Color? iconColor;
+  final double? iconSize;
+
+  // private
+  final Animation<double> _progress;
+
+  ArcProgressIndicator({
+    Key? key,
+    required this.controller,
+    required this.radius,
+    this.startAngle = 0.0,
+    this.width,
+    this.color,
+    required this.icon,
+    this.iconColor,
+    this.iconSize,
+  })  : _progress = Tween(begin: 0.0, end: 1.0).animate(controller),
+        super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    late TextPainter _iconPainter;
+    final ThemeData theme = Theme.of(context);
+    final Color? _iconColor = iconColor ?? theme.colorScheme.secondary;
+    final double? _iconSize = iconSize ?? IconTheme.of(context).size;
+
+    _iconPainter = TextPainter(
+      textDirection: Directionality.of(context),
+      text: TextSpan(
+        text: String.fromCharCode(icon.codePoint),
+        style: TextStyle(
+          inherit: false,
+          color: _iconColor,
+          fontSize: _iconSize,
+          fontFamily: icon.fontFamily,
+          package: icon.fontPackage,
+        ),
+      ),
+    )..layout();
+
+    return CustomPaint(
+      painter: _ArcProgressPainter(
+        controller: _progress,
+        color: color ?? theme.colorScheme.secondary,
+        radius: radius,
+        width: width ?? _iconSize! * 2,
+        startAngle: startAngle,
+        icon: _iconPainter,
+      ),
+    );
+  }
+}
+
+class _ArcProgressPainter extends CustomPainter {
+  // required
+  final Animation<double> controller;
+  final Color color;
+  final double radius;
+  final double width;
+
+  // optional
+  final double startAngle;
+  final TextPainter icon;
+
+  _ArcProgressPainter({
+    required this.controller,
+    required this.color,
+    required this.radius,
+    required this.width,
+    this.startAngle = 0.0,
+    required this.icon,
+  }) : super(repaint: controller);
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    Paint paint = Paint()
+      ..color = color
+      ..strokeWidth = width
+      ..strokeCap = StrokeCap.round
+      ..style = PaintingStyle.stroke;
+
+    final double sweepAngle = controller.value * 2 * Math.pi;
+
+    canvas.drawArc(
+      Offset.zero & size,
+      startAngle,
+      sweepAngle,
+      false,
+      paint,
+    );
+
+    double angle = startAngle + sweepAngle;
+    Offset offset = Offset(
+      (size.width / 2 - icon.size.width / 2) + radius * Math.cos(angle),
+      (size.height / 2 - icon.size.height / 2) + radius * Math.sin(angle),
+    );
+
+    icon.paint(canvas, offset);
+  }
+
+  @override
+  bool shouldRepaint(_ArcProgressPainter other) {
+    return controller.value != other.controller.value ||
+        color != other.color ||
+        radius != other.radius ||
+        width != other.width ||
+        startAngle != other.startAngle ||
+        icon != other.icon;
+  }
+}

+import 'dart:async';
+import 'dart:math' as math;
+
+import 'package:flutter/material.dart';
+import 'package:Parlando/widgets/radial/src/radial_menu_button.dart';
+import 'package:Parlando/widgets/radial/src/radial_menu_center_button.dart';
+import 'package:Parlando/widgets/radial/src/radial_menu_item.dart';
+
+const double _radiansPerDegree = math.pi / 180;
+const double _startAngle = -120.0 * _radiansPerDegree;
+
+typedef ItemAngleCalculator = double Function(int index);
+
+/// A radial menu for selecting from a list of items.
+///
+/// A radial menu lets the user select from a number of items. It displays a
+/// button that opens the menu, showing its items arranged in an arc. Selecting
+/// an item triggers the animation of a progress bar drawn at the specified
+/// [radius] around the central menu button.
+///
+/// The type `T` is the type of the values the radial menu represents. All the
+/// entries in a given menu must represent values with consistent types.
+/// Typically, an enum is used. Each [RadialMenuItem] in [items] must be
+/// specialized with that same type argument.
+///
+/// Requires one of its ancestors to be a [Material] widget.
+///
+/// See also:
+///
+///  * [RadialMenuItem], the widget used to represent the [items].
+///  * [RadialMenuCenterButton], the button used to open and close the menu.
+class RadialMenu<T> extends StatefulWidget {
+  /// Creates a dropdown button.
+  ///
+  /// The [items] must have distinct values.
+  ///
+  /// The [radius], [menuAnimationDuration], and [progressAnimationDuration]
+  /// arguments must not be null (they all have defaults, so do not need to be
+  /// specified).
+  const RadialMenu({
+    Key? key,
+    required this.items,
+    required this.onSelected,
+    this.radius = 100.0,
+    this.menuAnimationDuration = const Duration(milliseconds: 1000),
+    this.progressAnimationDuration = const Duration(milliseconds: 1000),
+  }) : super(key: key);
+
+  /// The list of possible items to select among.
+  final List<RadialMenuItem<T>> items;
+
+  /// Called when the user selects an item.
+  final Function onSelected; // TODO why Function? not ValueChanged?
+
+  /// The radius of the arc used to lay out the items and draw the progress bar.
+  ///
+  /// Defaults to 100.0.
+  final double radius;
+
+  /// Duration of the menu opening/closing animation.
+  ///
+  /// Defaults to 1000 milliseconds.
+  final Duration menuAnimationDuration;
+
+  /// Duration of the action activation progress arc animation.
+  ///
+  /// Defaults to 1000 milliseconds.
+  final Duration progressAnimationDuration;
+
+  @override
+  RadialMenuState createState() => RadialMenuState();
+}
+
+class RadialMenuState extends State<RadialMenu> with TickerProviderStateMixin {
+  late AnimationController _menuAnimationController;
+  late AnimationController _progressAnimationController;
+  bool _isOpen = false;
+  int _activeItemIndex = -1;
+
+  // todo: xqwzts: allow users to pass in their own calculator as a param.
+  // and change this to the default: radialItemAngleCalculator.
+  double calculateItemAngle(int index) {
+    double _itemSpacing = 120.0 / widget.items.length;
+    return _startAngle + index * _itemSpacing * _radiansPerDegree;
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    _menuAnimationController = AnimationController(
+      duration: widget.menuAnimationDuration,
+      vsync: this,
+    );
+    _progressAnimationController = AnimationController(
+      duration: widget.progressAnimationDuration,
+      vsync: this,
+    );
+  }
+
+  @override
+  void dispose() {
+    _menuAnimationController.dispose();
+    _progressAnimationController.dispose();
+    super.dispose();
+  }
+
+  void _openMenu() {
+    _menuAnimationController.forward();
+    setState(() => _isOpen = true);
+  }
+
+  void _closeMenu() {
+    _menuAnimationController.reverse();
+    setState(() => _isOpen = false);
+  }
+
+  Future<void> _activate(int itemIndex) async {
+    setState(() => _activeItemIndex = itemIndex);
+    await _progressAnimationController.forward().orCancel;
+    widget.onSelected(widget.items[itemIndex].value);
+    _closeMenu();
+  }
+
+  /// Resets the menu to its initial (closed) state.
+  void reset() {
+    _menuAnimationController.reset();
+    _progressAnimationController.reverse();
+    setState(() {
+      _isOpen = false;
+      _activeItemIndex = -1;
+    });
+  }
+
+  Widget _buildActionButton(int index) {
+    final RadialMenuItem item = widget.items[index];
+
+    return LayoutId(
+      id: '${_RadialMenuLayout.actionButton}$index',
+      child: RadialMenuButton(
+        child: item,
+        backgroundColor: item.backgroundColor,
+        onPressed: () => _activate(index),
+      ),
+    );
+  }
+
+  Widget _buildCenterButton() {
+    return LayoutId(
+      id: _RadialMenuLayout.menuButton,
+      child: RadialMenuCenterButton(
+        openCloseAnimationController: _menuAnimationController.view,
+        activateAnimationController: _progressAnimationController.view,
+        isOpen: _isOpen,
+        onPressed: _isOpen ? _closeMenu : _openMenu,
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final List<Widget> children = <Widget>[];
+    for (int i = 0; i < widget.items.length; i++) {
+      if (_activeItemIndex != i) {
+        children.add(_buildActionButton(i));
+      }
+    }
+    children.add(_buildCenterButton());
+
+    return AnimatedBuilder(
+      animation: _menuAnimationController,
+      builder: (BuildContext context, Widget? child) {
+        return CustomMultiChildLayout(
+          delegate: _RadialMenuLayout(
+            itemCount: widget.items.length,
+            radius: widget.radius,
+            calculateItemAngle: calculateItemAngle,
+            controller: _menuAnimationController.view,
+          ),
+          children: children,
+        );
+      },
+    );
+  }
+}
+
+class _RadialMenuLayout extends MultiChildLayoutDelegate {
+  static const String menuButton = 'menuButton';
+  static const String actionButton = 'actionButton';
+  static const String activeAction = 'activeAction';
+
+  final int itemCount;
+  final double radius;
+  final ItemAngleCalculator calculateItemAngle;
+
+  final Animation<double> controller;
+
+  final Animation<double> _progress;
+
+  _RadialMenuLayout({
+    required this.itemCount,
+    required this.radius,
+    required this.calculateItemAngle,
+    required this.controller,
+  }) : _progress = Tween<double>(begin: 0.0, end: radius).animate(
+          CurvedAnimation(
+            curve: Curves.elasticOut,
+            parent: controller,
+          ),
+        );
+
+  late Offset center;
+
+  @override
+  void performLayout(Size size) {
+    center = Offset(size.width / 2, size.height / 2);
+
+    if (hasChild(menuButton)) {
+      Size menuButtonSize;
+      menuButtonSize = layoutChild(menuButton, BoxConstraints.loose(size));
+
+      // place the menubutton in the center
+      positionChild(
+        menuButton,
+        Offset(
+          center.dx - menuButtonSize.width / 2,
+          center.dy - menuButtonSize.height / 2,
+        ),
+      );
+    }
+
+    for (int i = 0; i < itemCount; i++) {
+      final String actionButtonId = '$actionButton$i';
+      final String actionArcId = '$activeAction$i';
+      if (hasChild(actionArcId)) {
+        final Size arcSize = layoutChild(
+          actionArcId,
+          BoxConstraints.expand(
+            width: _progress.value * 2,
+            height: _progress.value * 2,
+          ),
+        );
+
+        positionChild(
+          actionArcId,
+          Offset(
+            center.dx - arcSize.width / 2,
+            center.dy - arcSize.height / 2,
+          ),
+        );
+      }
+
+      if (hasChild(actionButtonId)) {
+        final Size buttonSize =
+            layoutChild(actionButtonId, BoxConstraints.loose(size));
+
+        final double itemAngle = calculateItemAngle(i);
+
+        positionChild(
+          actionButtonId,
+          Offset(
+            (center.dx - buttonSize.width / 2) +
+                (_progress.value) * math.cos(itemAngle),
+            (center.dy - buttonSize.height / 2) +
+                (_progress.value) * math.sin(itemAngle),
+          ),
+        );
+      }
+    }
+  }
+
+  @override
+  bool shouldRelayout(_RadialMenuLayout oldDelegate) =>
+      itemCount != oldDelegate.itemCount ||
+      radius != oldDelegate.radius ||
+      calculateItemAngle != oldDelegate.calculateItemAngle ||
+      controller != oldDelegate.controller ||
+      _progress != oldDelegate._progress;
+}

+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+class RadialMenuButton extends StatelessWidget {
+  const RadialMenuButton({
+    Key? key,
+    required this.child,
+    required this.backgroundColor,
+    required this.onPressed,
+  }) : super(key: key);
+
+  final Widget child;
+  final Color backgroundColor;
+  final VoidCallback onPressed;
+
+  @override
+  Widget build(BuildContext context) {
+    final Color color = backgroundColor;
+
+    return Semantics(
+      button: true,
+      enabled: true,
+      child: Material(
+        type: MaterialType.circle,
+        color: color,
+        child: InkWell(
+          onTap: onPressed,
+          child: child,
+        ),
+      ),
+    );
+  }
+}

+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:Parlando/widgets/radial/src/radial_menu_button.dart';
+
+const double _defaultButtonSize = 48.0;
+
+/// The button at the center of a [RadialMenu] which controls its open/closed
+/// state.
+class RadialMenuCenterButton extends StatelessWidget {
+  /// Drives the opening/closing animation of the [RadialMenu].
+  final Animation<double> openCloseAnimationController;
+
+  /// Drives the animation when an item in the [RadialMenu] is pressed.
+  final Animation<double> activateAnimationController;
+
+  /// Called when the user presses this button.
+  final VoidCallback onPressed;
+
+  /// The opened/closed state of the menu.
+  ///
+  /// Determines which of [closedColor] or [openedColor] should be used as the
+  /// background color of the button.
+  final bool isOpen;
+
+  /// The color to use when painting the icon.
+  ///
+  /// Defaults to [Colors.black].
+  final Color iconColor;
+
+  /// Background color when it is in its closed state.
+  ///
+  /// Defaults to [Colors.white].
+  final Color closedColor;
+
+  /// Background color when it is in its opened state.
+  ///
+  /// Defaults to [Colors.grey].
+  final Color openedColor;
+
+  /// The size of the button.
+  ///
+  /// Defaults to 48.0.
+  final double size;
+
+  /// The animation progress for the [AnimatedIcon] in the center of the button.
+  final Animation<double> _progress;
+
+  /// The scale factor applied to the button.
+  ///
+  /// Animates from 1.0 to 0.0 when an an item is pressed in the menu and
+  /// [activateAnimationController] progresses.
+  final Animation<double> _scale;
+
+  RadialMenuCenterButton({
+    Key? key,
+    required this.openCloseAnimationController,
+    required this.activateAnimationController,
+    required this.onPressed,
+    required this.isOpen,
+    this.iconColor = Colors.black,
+    this.closedColor = Colors.white,
+    this.openedColor = Colors.grey,
+    this.size = _defaultButtonSize,
+  })  : _progress = Tween(begin: 0.0, end: 1.0).animate(
+          CurvedAnimation(
+            parent: openCloseAnimationController,
+            curve: const Interval(
+              0.0,
+              0.5,
+              curve: Curves.ease,
+            ),
+          ),
+        ),
+        _scale = Tween(begin: 1.0, end: 0.0).animate(
+          CurvedAnimation(
+            parent: activateAnimationController,
+            curve: Curves.elasticIn,
+          ),
+        ),
+        super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final AnimatedIcon animatedIcon = AnimatedIcon(
+      color: iconColor,
+      icon: AnimatedIcons.menu_close,
+      progress: _progress,
+    );
+
+    final Widget child = SizedBox(
+      width: size,
+      height: size,
+      child: Center(
+        child: animatedIcon,
+      ),
+    );
+
+    final Color color = isOpen ? openedColor : closedColor;
+
+    return ScaleTransition(
+      scale: _scale,
+      child: RadialMenuButton(
+        child: child,
+        backgroundColor: color,
+        onPressed: onPressed,
+      ),
+    );
+  }
+}

+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+const double _defaultButtonSize = 48.0;
+
+/// An item in a [RadialMenu].
+///
+/// The type `T` is the type of the value the entry represents. All the entries
+/// in a given menu must represent values with consistent types.
+class RadialMenuItem<T> extends StatelessWidget {
+  /// Creates a circular action button for an item in a [RadialMenu].
+  ///
+  /// The [child] argument is required.
+  const RadialMenuItem({
+    Key? key,
+    required this.child,
+    required this.value,
+    required this.tooltip,
+    this.size = _defaultButtonSize,
+    required this.backgroundColor,
+    required this.iconColor,
+    this.iconSize = 24.0,
+  }) : super(key: key);
+
+  /// The widget below this widget in the tree.
+  ///
+  /// Typically an [Icon] widget.
+  final Widget child;
+
+  /// The value to return if the user selects this menu item.
+  ///
+  /// Eventually returned in a call to [RadialMenu.onSelected].
+  final T value;
+
+  /// Text that describes the action that will occur when the button is pressed.
+  ///
+  /// This text is displayed when the user long-presses on the button and is
+  /// used for accessibility.
+  final String tooltip;
+
+  /// The color to use when filling the button.
+  ///
+  /// Defaults to the primary color of the current theme.
+  final Color backgroundColor;
+
+  /// The size of the button.
+  ///
+  /// Defaults to 48.0.
+  final double size;
+
+  /// The color to use when painting the child icon.
+  ///
+  /// Defaults to the primary icon theme color.
+  final Color? iconColor;
+
+  final double? iconSize;
+
+  @override
+  Widget build(BuildContext context) {
+    final Color? _iconColor =
+        iconColor ?? Theme.of(context).primaryIconTheme.color;
+
+    late Widget result;
+
+    result = Center(
+      child: IconTheme.merge(
+        data: IconThemeData(
+          color: _iconColor,
+          size: iconSize,
+        ),
+        child: child,
+      ),
+    );
+
+    result = Tooltip(
+      message: tooltip,
+      child: result,
+    );
+
+    result = SizedBox(
+      width: size,
+      height: size,
+      child: result,
+    );
+
+    return result;
+  }
+}

@@ -309,6 +309,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.1"
+  event_bus:
+    dependency: "direct main"
+    description:
+      name: event_bus
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.0"
   fake_async:
     dependency: transitive
     description:

@@ -111,6 +111,7 @@ dependencies:
 
   getwidget: ^2.0.5
   sign_in_with_apple: ^3.3.0
+  event_bus: ^2.0.0
 
 dependency_overrides:
   decimal: 1.5.0