flutter_ecosed 0.0.10 flutter_ecosed: ^0.0.10 copied to clipboard
FlutterEcosed is a Flutter plugin and an advanced Flutter development framework that provides Android platform debugging, plugin development and dashboard functions.
import 'dart:async';
import 'dart:io';
import 'package:device_preview/device_preview.dart';
import 'package:dynamic_color/dynamic_color.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_ecosed/flutter_ecosed.dart';
import 'package:url_launcher/url_launcher.dart';
import 'package:webview_flutter/webview_flutter.dart';
void main() {
runApp(const PreviewWrapper());
}
class PreviewWrapper extends StatefulWidget {
const PreviewWrapper({super.key});
@override
State<PreviewWrapper> createState() => _PreviewWrapperState();
}
class _PreviewWrapperState extends State<PreviewWrapper> {
@override
Widget build(BuildContext context) {
return DevicePreview(
builder: (context) => const MyApp(),
tools: const [
DevicePreviewAddPlugin(),
...DevicePreview.defaultTools,
],
enabled: true,
);
}
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> with SingleTickerProviderStateMixin {
final GlobalKey<ScaffoldState> scaffoldKey = GlobalKey<ScaffoldState>();
late final AnimationController controller;
late final CurvedAnimation railAnimation;
bool controllerInitialized = false;
SizeSelected windowSize = SizeSelected.compact;
@override
void initState() {
super.initState();
controller = AnimationController(
duration: Duration(milliseconds: Global.transitionLength.toInt() * 2),
value: 0,
vsync: this,
);
railAnimation = CurvedAnimation(
parent: controller,
curve: const Interval(0.5, 1.0),
);
}
@override
void dispose() {
controller.dispose();
super.dispose();
}
@override
void didChangeDependencies() {
super.didChangeDependencies();
final double width = MediaQuery.of(context).size.width;
final AnimationStatus status = controller.status;
switch (width) {
case < Global.compactWidthBreakpoint:
windowSize = SizeSelected.compact;
if (status != AnimationStatus.reverse &&
status != AnimationStatus.dismissed) {
controller.reverse();
}
case < Global.mediumWidthBreakpoint:
windowSize = SizeSelected.medium;
if (status != AnimationStatus.forward &&
status != AnimationStatus.completed) {
controller.forward();
}
default:
windowSize = SizeSelected.expanded;
if (status != AnimationStatus.forward &&
status != AnimationStatus.completed) {
controller.forward();
}
}
if (!controllerInitialized) {
controllerInitialized = true;
controller.value = width > Global.mediumWidthBreakpoint ? 1 : 0;
}
}
/// Widget的构建入口
@override
Widget build(BuildContext context) {
return AnimatedBuilder(
animation: controller,
builder: (context, child) {
return NavigationTransition(
scaffoldKey: scaffoldKey,
animationController: controller,
railAnimation: railAnimation,
appBar: (title) => AppBar(
title: Text(title),
),
body: (body) => Expanded(
child: MyHomePage(manager: body),
),
navigationRail: ValueListenableBuilder(
valueListenable: Global.pageIndex,
builder: (context, value, child) {
return NavigationRail(
extended: windowSize == SizeSelected.expanded,
destinations: Global.navRailDestinations,
selectedIndex: value,
onDestinationSelected: (index) {
Global.pageIndex.value = index;
Global.showFab.value = Global.pageIndex.value == 0;
},
);
},
),
navigationBar: ValueListenableBuilder(
valueListenable: Global.pageIndex,
builder: (context, value, child) {
return NavigationBar(
selectedIndex: value,
destinations: Global.appBarDestinations,
onDestinationSelected: (index) {
Global.pageIndex.value = index;
Global.showFab.value = Global.pageIndex.value == 0;
},
);
},
),
floatingActionButton: ValueListenableBuilder(
valueListenable: Global.showFab,
builder: (context, value, child) {
return Visibility(
visible: value,
child: FloatingActionButton(
onPressed: () =>
context.execPluginMethod('example_channel', Method.add),
tooltip: 'Increment',
child: const Icon(Icons.add),
),
);
},
),
);
},
);
}
}
/// 主页布局类型枚举
enum SizeSelected {
///折叠
compact,
/// 中等
medium,
/// 展开
expanded,
}
/// Global全局类
class Global {
const Global();
/// 应用名称
static const String appName = 'flutter_ecosed 示例应用';
/// compact阈值
static const double compactWidthBreakpoint = 600;
/// medium阈值
static const double mediumWidthBreakpoint = 840;
/// 大小切换动画速率
static const double transitionLength = 500;
/// 页面索引
static final ValueNotifier<int> pageIndex = ValueNotifier(0);
/// 方法执行
static late Executor executor;
/// 计数
static final ValueNotifier<int> counter = ValueNotifier(0);
/// 是否显示FAB
static final ValueNotifier<bool> showFab = ValueNotifier(true);
/// 导航栏目的地
static const List<NavigationDestination> appBarDestinations = [
NavigationDestination(
icon: Icon(Icons.home_outlined),
selectedIcon: Icon(Icons.home),
label: '主页',
tooltip: '主页',
enabled: true,
),
NavigationDestination(
icon: Icon(Icons.dashboard_outlined),
selectedIcon: Icon(Icons.dashboard),
label: '管理器',
tooltip: 'flutter_ecosed管理器页面',
enabled: true,
),
NavigationDestination(
icon: Icon(Icons.publish_outlined),
selectedIcon: Icon(Icons.publish),
label: 'Pub包',
tooltip: 'Pub包发布页面',
enabled: true,
),
NavigationDestination(
icon: Icon(Icons.code_outlined),
selectedIcon: Icon(Icons.code),
label: 'GitHub',
tooltip: 'GitHub源码存储仓库',
enabled: true,
),
];
/// 纵向导航栏目的地
static final List<NavigationRailDestination> navRailDestinations =
appBarDestinations
.map(
(destination) => NavigationRailDestination(
icon: Tooltip(
message: destination.label,
child: destination.icon,
),
selectedIcon: Tooltip(
message: destination.label,
child: destination.selectedIcon,
),
label: Text(destination.label),
disabled: false,
),
)
.toList();
}
/// 调用方法
class Method {
/// 计数器
static const String add = 'add';
}
/// 插件方法执行器
class Executor {
const Executor({required this.exec});
/// 传入方法执行函数
final Future<dynamic> Function(String channel, String method) exec;
/// 调用方法
Future<dynamic> call(String channel, String method) async {
return await exec(channel, method);
}
}
/// 通过上下文调用插件方法
extension ContextExecutor on BuildContext {
/// 调用插件方法
Future<dynamic> execPluginMethod(String channel, String method) async {
return await Global.executor(channel, method);
}
}
class DevicePreviewAddPlugin extends StatelessWidget {
const DevicePreviewAddPlugin({super.key});
@override
Widget build(BuildContext context) {
return ToolPanelSection(
title: 'Counter',
children: [
ListTile(
title: const Text('counter add'),
onTap: () => context.execPluginMethod("example_channel", Method.add),
)
],
);
}
}
class NavigationTransition extends StatefulWidget {
const NavigationTransition({
super.key,
required this.scaffoldKey,
required this.animationController,
required this.railAnimation,
required this.navigationRail,
required this.navigationBar,
required this.appBar,
required this.body,
required this.floatingActionButton,
});
final GlobalKey<ScaffoldState> scaffoldKey;
final AnimationController animationController;
final CurvedAnimation railAnimation;
final Widget navigationRail;
final Widget navigationBar;
final Widget floatingActionButton;
final PreferredSizeWidget Function(String title) appBar;
final Widget Function(Widget body) body;
@override
State<NavigationTransition> createState() => _NavigationTransitionState();
}
class _NavigationTransitionState extends State<NavigationTransition> {
late final AnimationController controller;
late final CurvedAnimation railAnimation;
late final ReverseAnimation barAnimation;
bool controllerInitialized = false;
bool showDivider = false;
@override
void initState() {
super.initState();
controller = widget.animationController;
railAnimation = widget.railAnimation;
barAnimation = ReverseAnimation(
CurvedAnimation(
parent: controller,
curve: const Interval(0.0, 0.5),
),
);
}
@override
Widget build(BuildContext context) {
return DynamicColorBuilder(
builder: (light, dark) {
return EcosedApp(
home: (context, exec, body) {
return ExecutorBuilder(
exec: exec,
child: Row(
children: <Widget>[
RailTransition(
animation: railAnimation,
backgroundColor: Theme.of(context).colorScheme.surface,
child: widget.navigationRail,
),
widget.body(body),
],
),
);
},
plugins: const [ExamplePlugin()],
title: Global.appName,
location: BannerLocation.topStart,
scaffold: (body, title) {
return Scaffold(
key: widget.scaffoldKey,
appBar: widget.appBar(title),
body: body,
bottomNavigationBar: BarTransition(
animation: barAnimation,
backgroundColor: Theme.of(context).colorScheme.surface,
child: widget.navigationBar,
),
floatingActionButton: widget.floatingActionButton,
);
},
materialApp: (home, title) {
return MaterialApp(
home: home,
builder: DevicePreview.appBuilder,
title: title,
theme: ThemeData(colorScheme: light),
darkTheme: ThemeData(colorScheme: dark),
locale: DevicePreview.locale(context),
// ignore: deprecated_member_use
useInheritedMediaQuery: true,
);
},
);
},
);
}
}
/// 执行器构建器
class ExecutorBuilder extends StatelessWidget {
const ExecutorBuilder({
super.key,
required this.exec,
required this.child,
});
final Future<dynamic> Function(String channel, String method) exec;
final Widget child;
@override
Widget build(BuildContext context) {
Global.executor = Executor(exec: exec);
return Container(child: child);
}
}
class ExamplePlugin implements EcosedPlugin {
const ExamplePlugin();
/// “ExampleAuthor”为作者信息,替换为你自己的名字即可,通过[pluginAuthor]方法定义.
@override
String pluginAuthor() => 'ExampleAuthor';
/// “example_channel”为插件的通道,可以理解为插件的唯一标识,我们通常使用全小写英文字母加下划线的命名方式,通过[pluginChannel]方法定义.
@override
String pluginChannel() => 'example_channel';
/// "Example description"为插件的描述,通过[pluginDescription]方法定.
@override
String pluginDescription() => 'Example description';
/// “Example Plugin”为插件的名称,通过[pluginName]方法定义.
@override
String pluginName() => 'Example Plugin';
/// 右下角的打开按钮是打开[pluginWidget]方法定义的界面.
@override
Widget pluginWidget(BuildContext context) => const ExamplePluginPage();
/// [onMethodCall]方法为插件的方法调用.
@override
Future<dynamic> onMethodCall(String method) async {
switch (method) {
case Method.add:
return Global.counter.value++;
default:
return await null;
}
}
}
class ExamplePluginPage extends StatelessWidget {
const ExamplePluginPage({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Example Plugin'),
),
body: const Center(
child: Text('Hello, World!'),
),
);
}
}
class MyHomePage extends StatelessWidget {
const MyHomePage({super.key, required this.manager});
final Widget manager;
@override
Widget build(BuildContext context) {
return ValueListenableBuilder(
valueListenable: Global.pageIndex,
builder: (context, value, child) {
return IndexedStack(
index: value,
children: <Widget>[
ValueListenableBuilder(
valueListenable: Global.counter,
builder: (context, value, child) {
return HomeScreen(counter: value);
},
),
ManagerScreen(manager: manager),
const WebViewScreen(
url: 'https://pub.dev/packages/flutter_ecosed',
),
const WebViewScreen(
url: 'https://github.com/libecosed/flutter_ecosed',
),
],
);
},
);
}
}
class HomeScreen extends StatelessWidget {
const HomeScreen({super.key, required this.counter});
final int counter;
@override
Widget build(BuildContext context) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
const Text(
'You have pushed the button this many times:',
),
Text(
'$counter',
style: Theme.of(context).textTheme.titleMedium,
),
],
),
);
}
}
class ManagerScreen extends StatelessWidget {
const ManagerScreen({super.key, required this.manager});
final Widget manager;
@override
Widget build(BuildContext context) {
return Container(child: manager);
}
}
class WebViewScreen extends StatelessWidget {
const WebViewScreen({super.key, required this.url});
final String url;
bool canShowWebView() {
if (kIsWeb) return false;
if (Platform.isAndroid || Platform.isIOS) return true;
return false;
}
@override
Widget build(BuildContext context) {
return canShowWebView()
? Focus(
onKeyEvent: (node, event) {
if (!kIsWeb) {
if ({
LogicalKeyboardKey.arrowLeft,
LogicalKeyboardKey.arrowRight,
LogicalKeyboardKey.arrowUp,
LogicalKeyboardKey.arrowDown,
LogicalKeyboardKey.tab
}.contains(event.logicalKey)) {
return KeyEventResult.skipRemainingHandlers;
}
}
return KeyEventResult.ignored;
},
child: GestureDetector(
onSecondaryTap: () {},
child: WebViewWidget(
controller: WebViewController()
..loadRequest(
Uri.parse(url),
)
..setJavaScriptMode(
JavaScriptMode.unrestricted,
),
),
),
)
: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
'当前操作系统${Theme.of(context).platform.name}不支持WebView组件,请通过浏览器打开.',
),
TextButton(
onPressed: () => launchUrl(
Uri.parse(url),
),
child: const Text('通过浏览器打开'),
),
],
),
);
}
}
/// 左侧垂直导航切换动画
class RailTransition extends StatefulWidget {
const RailTransition({
super.key,
required this.animation,
required this.backgroundColor,
required this.child,
});
final Animation<double> animation;
final Widget child;
final Color backgroundColor;
@override
State<RailTransition> createState() => _RailTransition();
}
class _RailTransition extends State<RailTransition> {
late Animation<Offset> offsetAnimation;
late Animation<double> widthAnimation;
@override
void didChangeDependencies() {
super.didChangeDependencies();
final bool ltr = Directionality.of(context) == TextDirection.ltr;
widthAnimation = Tween<double>(
begin: 0,
end: 1,
).animate(SizeAnimation(widget.animation));
offsetAnimation = Tween<Offset>(
begin: ltr ? const Offset(-1, 0) : const Offset(1, 0),
end: Offset.zero,
).animate(OffsetAnimation(widget.animation));
}
@override
Widget build(BuildContext context) {
return ClipRect(
child: DecoratedBox(
decoration: BoxDecoration(color: widget.backgroundColor),
child: Align(
alignment: Alignment.topLeft,
widthFactor: widthAnimation.value,
child: FractionalTranslation(
translation: offsetAnimation.value,
child: widget.child,
),
),
),
);
}
}
///底部导航切换动画
class BarTransition extends StatefulWidget {
const BarTransition(
{super.key,
required this.animation,
required this.backgroundColor,
required this.child});
final Animation<double> animation;
final Color backgroundColor;
final Widget child;
@override
State<BarTransition> createState() => _BarTransition();
}
class _BarTransition extends State<BarTransition> {
late final Animation<Offset> offsetAnimation;
late final Animation<double> heightAnimation;
@override
void initState() {
super.initState();
offsetAnimation = Tween<Offset>(
begin: const Offset(0, 1),
end: Offset.zero,
).animate(OffsetAnimation(widget.animation));
heightAnimation = Tween<double>(
begin: 0,
end: 1,
).animate(SizeAnimation(widget.animation));
}
@override
Widget build(BuildContext context) {
return ClipRect(
child: DecoratedBox(
decoration: BoxDecoration(color: widget.backgroundColor),
child: Align(
alignment: Alignment.topLeft,
heightFactor: heightAnimation.value,
child: FractionalTranslation(
translation: offsetAnimation.value,
child: widget.child,
),
),
),
);
}
}
class SizeAnimation extends CurvedAnimation {
SizeAnimation(Animation<double> parent)
: super(
parent: parent,
curve: const Interval(
0.2,
0.8,
curve: Curves.easeInOutCubicEmphasized,
),
reverseCurve: Interval(
0,
0.2,
curve: Curves.easeInOutCubicEmphasized.flipped,
),
);
}
class OffsetAnimation extends CurvedAnimation {
OffsetAnimation(Animation<double> parent)
: super(
parent: parent,
curve: const Interval(
0.4,
1.0,
curve: Curves.easeInOutCubicEmphasized,
),
reverseCurve: Interval(
0,
0.2,
curve: Curves.easeInOutCubicEmphasized.flipped,
),
);
}