feat: add route page

lib/components/pageRoute/fadePageRoute/index.dart

@@ -0,0 +1,48 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+class FadePageRoute extends PageRoute {
+  FadePageRoute({
+    required this.builder,
+    this.transitionDuration = const Duration(milliseconds: 300),
+    this.opaque = true,
+    this.barrierDismissible = false,
+    this.barrierColor,
+    this.barrierLabel,
+    this.maintainState = true,
+  });
+
+  final WidgetBuilder builder;
+
+  @override
+  final Duration transitionDuration;
+
+  @override
+  final bool opaque;
+
+  @override
+  final bool barrierDismissible;
+
+  @override
+  final Color? barrierColor;
+
+  @override
+  final String? barrierLabel;
+
+  @override
+  final bool maintainState;
+
+  @override
+  Widget buildPage(BuildContext context, Animation<double> animation,
+          Animation<double> secondaryAnimation) =>
+      builder(context);
+
+  @override
+  Widget buildTransitions(BuildContext context, Animation<double> animation,
+      Animation<double> secondaryAnimation, Widget child) {
+    return FadeTransition(
+      opacity: animation,
+      child: builder(context),
+    );
+  }
+}

lib/main.dart

@@ -1,8 +1,11 @@
 import 'package:flutter/material.dart';
 // constants
 import 'package:flutter_app/constants/color.dart';
+// components
+import 'package:flutter_app/components/pageRoute/fadePageRoute/index.dart';
 // pages
 import 'package:flutter_app/pages/demo/dashLine/index.dart';
+import 'package:flutter_app/pages/demo/routePage/index.dart';
 
 void main() {
   runApp(const MyApp());
@@ -17,15 +20,6 @@ class MyApp extends StatelessWidget {
     return MaterialApp(
       title: 'Flutter Demo',
       theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // Try running your application with "flutter run". You'll see the
-        // application has a blue toolbar. Then, without quitting the app, try
-        // changing the primarySwatch below to Colors.green and then invoke
-        // "hot reload" (press "r" in the console where you ran "flutter run",
-        // or simply save your changes to "hot reload" in a Flutter IDE).
-        // Notice that the counter didn't reset back to zero; the application
-        // is not restarted.
         primarySwatch: Colors.blue,
       ),
       home: const MyHomePage(title: 'Flutter Demo Home Page'),
@@ -36,15 +30,6 @@ class MyApp extends StatelessWidget {
 class MyHomePage extends StatefulWidget {
   const MyHomePage({Key? key, required this.title}) : super(key: key);
 
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
   final String title;
 
   @override
@@ -56,74 +41,73 @@ class _MyHomePageState extends State<MyHomePage> {
 
   void _incrementCounter() {
     setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
       _counter++;
     });
   }
 
+  Widget renderLinkItem(String text) {
+    return Container(
+      margin: const EdgeInsets.only(top: 8),
+      width: 200,
+      decoration: BoxDecoration(
+        color: ColorConstant.primaryColor.withOpacity(0.3),
+      ),
+      alignment: Alignment.center,
+      child: Text(
+        text,
+        style: Theme.of(context).textTheme.headline6,
+      ),
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
     return Scaffold(
       appBar: AppBar(
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
         title: Text(widget.title),
       ),
-      body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
-        child: Column(
-          // Column is also a layout widget. It takes a list of children and
-          // arranges them vertically. By default, it sizes itself to fit its
-          // children horizontally, and tries to be as tall as its parent.
-          //
-          // Invoke "debug painting" (press "p" in the console, choose the
-          // "Toggle Debug Paint" action from the Flutter Inspector in Android
-          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
-          // to see the wireframe for each widget.
-          //
-          // Column has various properties to control how it sizes itself and
-          // how it positions its children. Here we use mainAxisAlignment to
-          // center the children vertically; the main axis here is the vertical
-          // axis because Columns are vertical (the cross axis would be
-          // horizontal).
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: <Widget>[
-            Text(
-              'You have pushed the button this many times:',
-              style: TextStyle(
-                color: ColorConstant.primaryColor,
+      body: SingleChildScrollView(
+        child: Container(
+          width: double.infinity,
+          height: 1000,
+          color: ColorConstant.negativeColor.withOpacity(0.3),
+          child: Column(
+            children: <Widget>[
+              const SizedBox(height: 10),
+              Text(
+                'You have pushed the button this many times:',
+                style: TextStyle(
+                  color: ColorConstant.primaryColor,
+                ),
               ),
-            ),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headline4,
-            ),
-            InkWell(
-              onTap: () {
-                Navigator.push(
-                  context,
-                  MaterialPageRoute(
-                    builder: (context) => const DashLinePage(),
-                  ),
-                );
-              },
-              child: Text(
-                '去虚线',
+              Text(
+                '$_counter',
                 style: Theme.of(context).textTheme.headline4,
               ),
-            )
-          ],
+              InkWell(
+                onTap: () {
+                  Navigator.push(
+                    context,
+                    MaterialPageRoute(
+                      builder: (context) => const DashLinePage(),
+                    ),
+                  );
+                },
+                child: renderLinkItem('去虚线'),
+              ),
+              InkWell(
+                onTap: () {
+                  Navigator.push(
+                    context,
+                    FadePageRoute(
+                      builder: (context) => const RoutePage(),
+                    ),
+                  );
+                },
+                child: renderLinkItem('渐变自定义路由'),
+              ),
+            ],
+          ),
         ),
       ),
       floatingActionButton: FloatingActionButton(

lib/pages/demo/dashLine/index.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
 // constants
 import 'package:flutter_app/constants/color.dart';
 // components
@@ -12,34 +11,25 @@ class DashLinePage extends StatefulWidget {
   DashLinePageState createState() => DashLinePageState();
 }
 
-class DashLinePageState extends State<DashLinePage>
-    with AutomaticKeepAliveClientMixin {
-  @override
-  bool get wantKeepAlive => true; // 保持应用状态
-
+class DashLinePageState extends State<DashLinePage> {
   @override
   void initState() {
     super.initState();
   }
 
   @override
   Widget build(BuildContext context) {
-    super.build(context);
-    return AnnotatedRegion(
-      value: SystemUiOverlayStyle.light, // 修改状态栏字体颜色
-      child: Scaffold(
-        appBar: AppBar(
-          title: const Text('虚线'),
-          automaticallyImplyLeading: false,
-        ),
-        body: SingleChildScrollView(
-          child: Container(
-            height: 62,
-            color: Colors.red.withOpacity(0.3),
-            margin: const EdgeInsets.symmetric(horizontal: 2),
-            child: DashLine(
-              color: ColorConstant.strongColor,
-            ),
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('虚线'),
+      ),
+      body: SingleChildScrollView(
+        child: Container(
+          height: 62,
+          color: Colors.red.withOpacity(0.3),
+          margin: const EdgeInsets.symmetric(horizontal: 2),
+          child: DashLine(
+            color: ColorConstant.strongColor,
           ),
         ),
       ),

lib/pages/demo/routePage/index.dart

@@ -0,0 +1,58 @@
+import 'package:flutter/material.dart';
+// constants
+import 'package:flutter_app/constants/color.dart';
+// pages
+import 'package:flutter_app/pages/demo/dashLine/index.dart';
+
+class RoutePage extends StatefulWidget {
+  const RoutePage({Key? key}) : super(key: key);
+
+  @override
+  RoutePageState createState() => RoutePageState();
+}
+
+class RoutePageState extends State<RoutePage> {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('自定义路由动画'),
+      ),
+      body: SingleChildScrollView(
+        child: Container(
+          width: double.infinity,
+          height: 1000,
+          color: ColorConstant.strongColor.withOpacity(0.3),
+          margin: const EdgeInsets.symmetric(horizontal: 2),
+          child: Column(
+            children: <Widget>[
+              InkWell(
+                onTap: () {
+                  Navigator.push(
+                    context,
+                    MaterialPageRoute(
+                      builder: (context) => const DashLinePage(),
+                    ),
+                  );
+                },
+                child: Container(
+                  margin: const EdgeInsets.only(top: 8),
+                  width: 200,
+                  height: 60,
+                  decoration: BoxDecoration(
+                    color: ColorConstant.primaryColor,
+                  ),
+                  alignment: Alignment.center,
+                  child: Text(
+                    '去虚线',
+                    style: Theme.of(context).textTheme.headline6,
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}