diff --git a/README.md b/README.md
index 378b87b..5da2381 100644
--- a/README.md
+++ b/README.md
@@ -25,10 +25,10 @@
 > 当前Flutter 版本
 
 ```
-Flutter 2.10.5 • channel stable • https://github.com/flutter/flutter.git
-Framework • revision 5464c5bac7 (10 days ago) • 2022-04-18 09:55:37 -0700
-Engine • revision 57d3bac3dd
-Tools • Dart 2.16.2 • DevTools 2.9.2
+Flutter 3.0.0 • channel stable • https://github.com/flutter/flutter.git
+Framework • revision ee4e09cce0 (10 days ago) • 2022-05-09 16:45:18 -0700
+Engine • revision d1b9a6938a
+Tools • Dart 2.17.0 • DevTools 2.12.2
 ```
 
 ---
diff --git a/android/build.gradle b/android/build.gradle
index c45f25c..ba6fe4a 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,12 +1,12 @@
 buildscript {
-    ext.kotlin_version = '1.5.31'
+    ext.kotlin_version = '1.6.10'
     repositories {
         google()
         mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath 'com.android.tools.build:gradle:7.1.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
index bc6a58a..55be929 100644
--- a/android/gradle/wrapper/gradle-wrapper.properties
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,5 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-all.zip
+
diff --git a/assets/flutter.db b/assets/flutter.db
index d1d5b44..14e76ed 100644
Binary files a/assets/flutter.db and b/assets/flutter.db differ
diff --git a/lib/components/project/items/widget/coupon_widget_list_item.dart b/lib/components/project/items/widget/coupon_widget_list_item.dart
index 2a511a8..13f36e4 100644
--- a/lib/components/project/items/widget/coupon_widget_list_item.dart
+++ b/lib/components/project/items/widget/coupon_widget_list_item.dart
@@ -48,7 +48,7 @@ class CouponWidgetListItem extends StatelessWidget {
   }
 
   Widget buildContent() => Container(
-        color: colors[data.family.index].withAlpha(66),
+        color: data.death?Colors.grey:colors[data.family.index].withAlpha(66),
         height: 95,
         padding: const EdgeInsets.only(top: 10, left: 10, right: 10, bottom: 5),
         child: Row(
diff --git a/lib/components/project/items/widget/techno_widget_list_item.dart b/lib/components/project/items/widget/techno_widget_list_item.dart
index 79983df..e4af5d1 100644
--- a/lib/components/project/items/widget/techno_widget_list_item.dart
+++ b/lib/components/project/items/widget/techno_widget_list_item.dart
@@ -104,7 +104,8 @@ class TechnoWidgetListItem extends StatelessWidget {
               ),
       );
 
-  Color get itemColor => Cons.tabColors[data.family.index];
+  Color get itemColor => data.death?Colors.grey:Cons.tabColors[data.family.index];
+
 
   Widget _buildTitle() {
     return Row(
diff --git a/lib/components/project/overlay_tool_wrapper.dart b/lib/components/project/overlay_tool_wrapper.dart
index 35e6638..9712bb8 100644
--- a/lib/components/project/overlay_tool_wrapper.dart
+++ b/lib/components/project/overlay_tool_wrapper.dart
@@ -60,7 +60,7 @@ class OverlayToolWrapperState extends State<OverlayToolWrapper>
       vsync: this,
     )..addListener(_listenAnimate);
 
-    WidgetsBinding.instance?.addPostFrameCallback((callback) {
+    WidgetsBinding.instance.addPostFrameCallback((callback) {
       var px = MediaQuery.of(context).size.width - 100;
       var py = MediaQuery.of(context).size.height*0.05;
       offset = Offset(px, py);
diff --git a/lib/components/project/widget_node_panel.dart b/lib/components/project/widget_node_panel.dart
index eba4f36..18e0f37 100644
--- a/lib/components/project/widget_node_panel.dart
+++ b/lib/components/project/widget_node_panel.dart
@@ -22,11 +22,13 @@ class WidgetNodePanel extends StatefulWidget {
   final Widget? show;
   final HighlighterStyle? codeStyle;
   final String? codeFamily;
+  final bool death;
 
   const WidgetNodePanel(
       {Key? key, this.text='',
       this.subText='',
       this.code='',
+      this.death=false,
       this.show,
      required this.codeStyle,
       this.codeFamily}) : super(key: key);
@@ -58,6 +60,7 @@ class _WidgetNodePanelState extends State<WidgetNodePanel> {
             padding: const EdgeInsets.only(top: 10, bottom: 20),
             child: widget.show,
           ),
+          if(!widget.death)
           _buildNodeInfo(),
           const Divider(),
         ],
diff --git a/lib/main.dart b/lib/main.dart
index e5a60f0..67910e6 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -8,7 +8,7 @@ import 'app/views/navigation/flutter_unit.dart';
 void main() {
   WidgetsFlutterBinding.ensureInitialized();
   //滚动性能优化 1.22.0
-  GestureBinding.instance?.resamplingEnabled = true;
+  GestureBinding.instance.resamplingEnabled = true;
   runApp(const BlocWrapper(child: FlutterUnit()));
 }
 
diff --git a/lib/painter_system/gallery_unit.dart b/lib/painter_system/gallery_unit.dart
index b669be0..461b784 100644
--- a/lib/painter_system/gallery_unit.dart
+++ b/lib/painter_system/gallery_unit.dart
@@ -68,10 +68,9 @@ class _GalleryUnitState extends State<GalleryUnit> {
 
   @override
   Widget build(BuildContext context) {
-
     return Scaffold(
       body: ValueListenableBuilder(
-        child: Column( //使用 child 属性优化
+        child: Column(
           children: [
             _buildTitle(context),
             Expanded(
diff --git a/lib/widget_system/repositories/model/widget_model.dart b/lib/widget_system/repositories/model/widget_model.dart
index 0e08fef..8c4756c 100644
--- a/lib/widget_system/repositories/model/widget_model.dart
+++ b/lib/widget_system/repositories/model/widget_model.dart
@@ -18,6 +18,7 @@ class WidgetModel extends Equatable {
   final String nameCN;
   final WidgetFamily family;
   final bool deprecated;
+  final bool death;
   final List<int> links;
   final double lever;
   final ImageProvider? image;
@@ -32,6 +33,7 @@ class WidgetModel extends Equatable {
         required this.nameCN,
         required  this.family,
          this.deprecated =false,
+         this.death =false,
         required this.links,
         // required this.type,
         required this.lever,
@@ -50,6 +52,7 @@ class WidgetModel extends Equatable {
       image: convertImage(po.name),
       lever: po.lever,
       deprecated: po.deprecated == 1,
+      death: po.deprecated == -1,
       info: po.info,
       links: formatLinkTo(po.linkWidget),
     );
diff --git a/lib/widget_system/views/widget_detail_view/widget_detail_page.dart b/lib/widget_system/views/widget_detail_view/widget_detail_page.dart
index 8c2b536..51bbd4f 100644
--- a/lib/widget_system/views/widget_detail_view/widget_detail_page.dart
+++ b/lib/widget_system/views/widget_detail_view/widget_detail_page.dart
@@ -211,6 +211,7 @@ class _WidgetDetailPageState extends State<WidgetDetailPage> {
         text: nodes[i].name,
         subText: nodes[i].subtitle,
         code: nodes[i].code,
+        death: _modelStack.last.death,
         show: WidgetsMap.map(name)[i],
       ),
       childCount: nodes.length,
diff --git a/lib/widget_system/views/widget_home_view/home_page.dart b/lib/widget_system/views/widget_home_view/home_page.dart
index 4fed903..19142d6 100644
--- a/lib/widget_system/views/widget_home_view/home_page.dart
+++ b/lib/widget_system/views/widget_home_view/home_page.dart
@@ -33,7 +33,7 @@ class _HomePageState extends State<HomePage>
   @override
   void initState() {
     super.initState();
-    WidgetsBinding.instance?.addPostFrameCallback(_onFrameCallBack);
+    WidgetsBinding.instance.addPostFrameCallback(_onFrameCallBack);
   }
 
   void _onFrameCallBack(Duration timeStamp) {
diff --git a/lib/widget_system/widgets/ProxyWidget/ButtonBarTheme/node1_base.dart b/lib/widget_system/widgets/ProxyWidget/ButtonBarTheme/node1_base.dart
index b800292..b2483fa 100644
--- a/lib/widget_system/widgets/ProxyWidget/ButtonBarTheme/node1_base.dart
+++ b/lib/widget_system/widgets/ProxyWidget/ButtonBarTheme/node1_base.dart
@@ -37,7 +37,7 @@ class TempButtonBar extends StatelessWidget {
       children: <Widget>[
         RaisedButton(
             color: Colors.blue, child: const Text("1.Raised"), onPressed: () {}),
-        OutlineButton(child: const Text("2.Outline"), onPressed: () {}),
+        OutlinedButton(child: const Text("2.Outlined"), onPressed: () {}),
         FlatButton(
           color: Colors.blue,
           onPressed: () {},
diff --git a/lib/widget_system/widgets/ProxyWidget/ButtonTheme/node1_base.dart b/lib/widget_system/widgets/ProxyWidget/ButtonTheme/node1_base.dart
index d6f6d35..1119d82 100644
--- a/lib/widget_system/widgets/ProxyWidget/ButtonTheme/node1_base.dart
+++ b/lib/widget_system/widgets/ProxyWidget/ButtonTheme/node1_base.dart
@@ -30,7 +30,7 @@ class ButtonThemeDemo extends StatelessWidget {
         children: <Widget>[
           RaisedButton(onPressed: (){},child: const Icon(Icons.add)),
           FlatButton(onPressed: (){},child: const Icon(Icons.add)),
-          OutlineButton(onPressed: (){},child: const Icon(Icons.add)),
+          OutlinedButton(onPressed: (){},child: const Icon(Icons.add)),
           MaterialButton(onPressed: (){},child: const Icon(Icons.add)),
         ],
       ),
diff --git a/lib/widget_system/widgets/StatefulWidget/MonthPicker/node1_base.dart b/lib/widget_system/widgets/StatefulWidget/MonthPicker/node1_base.dart
index dbc8193..af9d365 100644
--- a/lib/widget_system/widgets/StatefulWidget/MonthPicker/node1_base.dart
+++ b/lib/widget_system/widgets/StatefulWidget/MonthPicker/node1_base.dart
@@ -12,26 +12,34 @@ import 'package:flutter/material.dart';
 //          "【lastDate】 : 最后日期限制   【DateTime】\n"
 //          "【onChanged】 : 点击回调  【Function(DateTime)】",
 //    }
-class CustomMonthPicker extends StatefulWidget {
+class CustomMonthPicker extends StatelessWidget{
   const CustomMonthPicker({Key? key}) : super(key: key);
 
-  @override
-  _CustomMonthPickerState createState() => _CustomMonthPickerState();
-}
-
-class _CustomMonthPickerState extends State<CustomMonthPicker> {
-  DateTime _date = DateTime.now();
+  final String info =
+      'MonthPicker 月份期选择器于 Flutter3.0 退出历史舞台。取代者为 CalendarDatePicker 日历选择器。';
 
   @override
   Widget build(BuildContext context) {
-    return SizedBox(
-      height: 350,
-      child: MonthPicker(
-        selectedDate: _date,
-        onChanged: (date) => setState(() => _date = date),
-        firstDate: DateTime(2018),
-        lastDate: DateTime(2030),
-      ),
+    return Container(
+      color: Colors.blue.withOpacity(0.1),
+      padding: const EdgeInsets.all(10),
+      margin: const EdgeInsets.all(10),
+      child: Text(info),
     );
   }
+
+  // final DateTime _date = DateTime.now();
+  //
+  // @override
+  // Widget build(BuildContext context) {
+  //   return SizedBox(
+  //     height: 350,
+  //     child: MonthPicker(
+  //       selectedDate: _date,
+  //       onChanged: (date) => setState(() => _date = date),
+  //       firstDate: DateTime(2018),
+  //       lastDate: DateTime(2030),
+  //     ),
+  //   );
+  // }
 }
diff --git a/lib/widget_system/widgets/StatelessWidget/ButtonBar/node1_base.dart b/lib/widget_system/widgets/StatelessWidget/ButtonBar/node1_base.dart
index 0eb070c..0d4dba8 100755
--- a/lib/widget_system/widgets/StatelessWidget/ButtonBar/node1_base.dart
+++ b/lib/widget_system/widgets/StatelessWidget/ButtonBar/node1_base.dart
@@ -25,8 +25,8 @@ class CustomButtonBar extends StatelessWidget {
             color: Colors.blue,
             child: const Text("Raised"),
             onPressed: () => DialogAbout.show(context)),
-        OutlineButton(
-            child: const Text("Outline"),
+        OutlinedButton(
+            child: const Text("Outlined"),
             onPressed: () => DialogAbout.show(context)),
         FlatButton(
           color: Colors.blue,
diff --git a/lib/widget_system/widgets/StatelessWidget/ButtonBar/node2_padding.dart b/lib/widget_system/widgets/StatelessWidget/ButtonBar/node2_padding.dart
index f35dca3..b94b96a 100644
--- a/lib/widget_system/widgets/StatelessWidget/ButtonBar/node2_padding.dart
+++ b/lib/widget_system/widgets/StatelessWidget/ButtonBar/node2_padding.dart
@@ -26,8 +26,8 @@ class PaddingButtonBar extends StatelessWidget {
             color: Colors.blue,
             child: const Text("Raised"),
             onPressed: () => DialogAbout.show(context)),
-        OutlineButton(
-            child: const Text("Outline"),
+        OutlinedButton(
+            child: const Text("Outlined"),
             onPressed: () => DialogAbout.show(context)),
         FlatButton(
           color: Colors.blue,
diff --git a/lib/widget_system/widgets/StatelessWidget/DayPicker/node1_base.dart b/lib/widget_system/widgets/StatelessWidget/DayPicker/node1_base.dart
index 67958ca..5fc1293 100644
--- a/lib/widget_system/widgets/StatelessWidget/DayPicker/node1_base.dart
+++ b/lib/widget_system/widgets/StatelessWidget/DayPicker/node1_base.dart
@@ -17,29 +17,37 @@
 //    }
 import 'package:flutter/material.dart';
 
-class CustomDayPicker extends StatefulWidget {
+class CustomDayPicker extends StatelessWidget{
+
   const CustomDayPicker({Key? key}) : super(key: key);
 
-  @override
-  _CustomDayPickerState createState() => _CustomDayPickerState();
-}
-
-class _CustomDayPickerState extends State<CustomDayPicker> {
-
-  DateTime _date = DateTime.now();
+  final String info =
+      'DayPicker 日期选择器于 Flutter3.0 退出历史舞台。取代者为 CalendarDatePicker 日历选择器。';
 
   @override
   Widget build(BuildContext context) {
-    return SizedBox(
-      height: 350,
-      child: DayPicker(
-          selectedDate: _date,
-          currentDate: DateTime.now(),
-          onChanged: (date)=> setState(() => _date = date),
-          firstDate:  DateTime(2018),
-          lastDate: DateTime(2030),
-          displayedMonth: DateTime.now()
-      ),
+    return Container(
+      color: Colors.blue.withOpacity(0.1),
+      padding: const EdgeInsets.all(10),
+      margin: const EdgeInsets.all(10),
+      child: Text(info),
     );
   }
+
+  // final DateTime _date = DateTime.now();
+  //
+  // @override
+  // Widget build(BuildContext context) {
+  //   return SizedBox(
+  //     height: 350,
+  //     child: DayPicker(
+  //         selectedDate: _date,
+  //         currentDate: DateTime.now(),
+  //         onChanged: (date)=> setState(() => _date = date),
+  //         firstDate:  DateTime(2018),
+  //         lastDate: DateTime(2030),
+  //         displayedMonth: DateTime.now()
+  //     ),
+  //   );
+  // }
 }
diff --git a/lib/widget_system/widgets/StatelessWidget/OutlineButton/node1_base.dart b/lib/widget_system/widgets/StatelessWidget/OutlineButton/node1_base.dart
index 1b6a48a..bba68e8 100755
--- a/lib/widget_system/widgets/StatelessWidget/OutlineButton/node1_base.dart
+++ b/lib/widget_system/widgets/StatelessWidget/OutlineButton/node1_base.dart
@@ -20,17 +20,30 @@ import 'package:flutter/material.dart';
 class CustomOutlineButton extends StatelessWidget {
   const CustomOutlineButton({Key? key}) : super(key: key);
 
+  final String info =
+      'OutlineButton 按钮于 Flutter3.0 退出历史舞台。取代者为 OutlinedButton 按钮。';
+
   @override
   Widget build(BuildContext context) {
-    return OutlineButton(//边线按钮
-      onPressed: () {},
-      child: const Text("OutlineButton"),
-      padding: const EdgeInsets.all(8),
-      splashColor: Colors.green,
-      highlightColor: Colors.orangeAccent,
-      highlightedBorderColor: Colors.grey,
-      textColor: const Color(0xff000000),
-      borderSide: const BorderSide(color: Color(0xff0A66F8), width: 2),
+    return Container(
+      color: Colors.blue.withOpacity(0.1),
+      padding: const EdgeInsets.all(10),
+      margin: const EdgeInsets.all(10),
+      child: Text(info),
     );
   }
+
+  // @override
+  // Widget build(BuildContext context) {
+  //   return OutlineButton(//边线按钮
+  //     onPressed: () {},
+  //     child: const Text("OutlineButton"),
+  //     padding: const EdgeInsets.all(8),
+  //     splashColor: Colors.green,
+  //     highlightColor: Colors.orangeAccent,
+  //     highlightedBorderColor: Colors.grey,
+  //     textColor: const Color(0xff000000),
+  //     borderSide: const BorderSide(color: Color(0xff0A66F8), width: 2),
+  //   );
+  // }
 }
diff --git a/pubspec.lock b/pubspec.lock
index 1879f88..1147254 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -63,7 +63,7 @@ packages:
       name: collection
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.15.0"
+    version: "1.16.0"
   crypto:
     dependency: transitive
     description:
@@ -105,7 +105,7 @@ packages:
       name: fake_async
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.0"
   ffi:
     dependency: transitive
     description:
@@ -204,7 +204,7 @@ packages:
       name: js
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.6.3"
+    version: "0.6.4"
   jwt_decoder:
     dependency: "direct main"
     description:
@@ -239,7 +239,7 @@ packages:
       name: material_color_utilities
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.1.3"
+    version: "0.1.4"
   meta:
     dependency: transitive
     description:
@@ -309,7 +309,7 @@ packages:
       name: path
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.8.0"
+    version: "1.8.1"
   path_provider:
     dependency: "direct main"
     description:
@@ -510,7 +510,7 @@ packages:
       name: source_span
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.8.1"
+    version: "1.8.2"
   sqflite:
     dependency: "direct main"
     description:
@@ -573,7 +573,7 @@ packages:
       name: test_api
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.4.8"
+    version: "0.4.9"
   toggle_rotate:
     dependency: "direct main"
     description:
@@ -650,7 +650,7 @@ packages:
       name: vector_math
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
   win32:
     dependency: transitive
     description:
@@ -680,5 +680,5 @@ packages:
     source: hosted
     version: "5.3.1"
 sdks:
-  dart: ">=2.15.0 <3.0.0"
+  dart: ">=2.17.0-0 <3.0.0"
   flutter: ">=2.8.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index d9da893..f766939 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -6,7 +6,7 @@ author: 张风捷特烈 <1981462002@qq.com>
 homepage: https://juejin.cn/user/149189281194766/posts
 
 environment:
-  sdk: ">=2.12.0 <3.0.0"
+  sdk: ">=2.12.0 <=3.0.0"
 
 dependencies:
   flutter: