1066 lines
30 KiB
Dart
1066 lines
30 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:url_launcher/url_launcher.dart';
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import 'package:webview_flutter/webview_flutter.dart';
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import 'config/app_config.dart';
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const _shellBackground = Color(0xFFF8FBFF);
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const _shellAccent = Color(0xFF0089FF);
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const _shellSubText = Color(0xFF8E9AB0);
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const _shellBrandingChannel =
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MethodChannel('io.openim.flutter.im_webview_app/shell_branding');
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Future<void> main() async {
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WidgetsFlutterBinding.ensureInitialized();
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SystemChrome.setSystemUIOverlayStyle(
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const SystemUiOverlayStyle(
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statusBarColor: Colors.transparent,
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statusBarIconBrightness: Brightness.dark,
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systemNavigationBarColor: _shellBackground,
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systemNavigationBarIconBrightness: Brightness.dark,
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),
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);
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runApp(const ImWebViewApp());
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}
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class ShellBranding {
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const ShellBranding({
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required this.appName,
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required this.appLogo,
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});
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static const fallback = ShellBranding(
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appName: AppConfig.appName,
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appLogo: AppConfig.appLogo,
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);
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final String appName;
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final String appLogo;
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static Future<ShellBranding> load() async {
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try {
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final data = await _shellBrandingChannel
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.invokeMapMethod<String, String>('getShellBranding');
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final appName = _trim(data?['appName']);
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final appLogo = _trim(data?['appLogo']);
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return ShellBranding(
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appName: appName.isNotEmpty ? appName : fallback.appName,
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appLogo: appLogo.isNotEmpty ? appLogo : fallback.appLogo,
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);
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} catch (_) {
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return fallback;
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}
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}
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static String _trim(String? value) => value?.trim() ?? '';
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}
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class ImWebViewApp extends StatelessWidget {
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const ImWebViewApp({
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super.key,
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this.shellBranding = ShellBranding.fallback,
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});
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final ShellBranding shellBranding;
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: shellBranding.appName,
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debugShowCheckedModeBanner: false,
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theme: ThemeData(
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colorScheme: ColorScheme.fromSeed(seedColor: const Color(0xFF1F6FEB)),
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scaffoldBackgroundColor: _shellBackground,
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useMaterial3: true,
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),
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home: H5ShellPage(initialShellBranding: shellBranding),
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);
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}
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}
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class H5ShellPage extends StatefulWidget {
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const H5ShellPage({super.key, required this.initialShellBranding});
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final ShellBranding initialShellBranding;
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@override
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State<H5ShellPage> createState() => _H5ShellPageState();
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}
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class _H5ShellPageState extends State<H5ShellPage> {
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late final List<H5Line> _h5Lines;
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late final List<_H5LineWebViewSlot> _lineSlots;
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bool _shellBrandingLoaded = false;
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int _currentLineIndex = 0;
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late ShellBranding _shellBranding;
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H5Line get _currentLine => _h5Lines[_currentLineIndex];
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_H5LineWebViewSlot get _currentSlot => _lineSlots[_currentLineIndex];
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@override
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void initState() {
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super.initState();
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_h5Lines = AppConfig.h5Lines;
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_shellBranding = widget.initialShellBranding;
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_lineSlots = [
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for (var index = 0; index < _h5Lines.length; index += 1)
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_H5LineWebViewSlot(
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line: _h5Lines[index],
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controller: _buildController(index),
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),
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];
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unawaited(_ensureLineLoaded(_currentLineIndex));
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}
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WebViewController _buildController(int lineIndex) {
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return WebViewController()
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..setJavaScriptMode(JavaScriptMode.unrestricted)
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..addJavaScriptChannel(
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'OpenIMShell',
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onMessageReceived: (message) => _handleShellMessage(lineIndex, message),
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)
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..setBackgroundColor(_shellBackground)
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..setNavigationDelegate(
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NavigationDelegate(
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onProgress: (progress) {
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if (mounted) {
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setState(() => _lineSlots[lineIndex].progress = progress);
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}
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},
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onPageStarted: (url) {
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final slot = _lineSlots[lineIndex];
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slot.shellCoverFallbackTimer?.cancel();
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if (mounted) {
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setState(() {
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slot.setCurrentUrl(url);
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slot.loadError = null;
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slot.progress = 0;
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slot.showShellCover = true;
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});
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}
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},
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onPageFinished: (_) {
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unawaited(_handlePageFinished(lineIndex));
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},
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onUrlChange: (change) {
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_updateSlotUrl(lineIndex, change.url);
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},
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onWebResourceError: (error) {
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if (error.isForMainFrame ?? true) {
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final slot = _lineSlots[lineIndex];
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slot.shellCoverFallbackTimer?.cancel();
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if (mounted) {
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setState(() {
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slot.loadError = error.description;
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slot.showShellCover = false;
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});
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}
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}
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},
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onNavigationRequest: _handleNavigationRequest,
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),
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);
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}
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@override
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void dispose() {
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for (final slot in _lineSlots) {
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slot.dispose();
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}
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super.dispose();
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}
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Future<void> _runJavaScriptSafely(int lineIndex, String source) async {
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try {
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await _lineSlots[lineIndex].controller.runJavaScript(source);
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} catch (_) {
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// WebView can reject JavaScript while a page is still navigating.
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}
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}
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Future<void> _handlePageFinished(int lineIndex) async {
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await _loadShellBrandingIfNeeded();
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await _syncShellBranding(lineIndex);
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await _installRouteObserver(lineIndex);
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if (mounted) {
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setState(() {
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_lineSlots[lineIndex].progress = 100;
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});
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}
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_scheduleShellCoverFallback(lineIndex);
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}
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void _handleShellMessage(int lineIndex, JavaScriptMessage message) {
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try {
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final decoded = jsonDecode(message.message);
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if (decoded is Map && decoded['type'] == 'first-screen-ready') {
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_hideShellCover(lineIndex);
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} else if (decoded is Map && decoded['type'] == 'route-changed') {
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_updateSlotUrl(lineIndex, decoded['url']?.toString());
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}
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} catch (_) {
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if (message.message == 'first-screen-ready') {
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_hideShellCover(lineIndex);
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}
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}
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}
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void _scheduleShellCoverFallback(int lineIndex) {
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final slot = _lineSlots[lineIndex];
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slot.shellCoverFallbackTimer?.cancel();
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slot.shellCoverFallbackTimer = Timer(
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const Duration(seconds: 4),
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() => _hideShellCover(lineIndex),
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);
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}
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void _hideShellCover(int lineIndex) {
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final slot = _lineSlots[lineIndex];
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slot.shellCoverFallbackTimer?.cancel();
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if (!mounted || !slot.showShellCover) {
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return;
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}
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setState(() {
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slot.progress = 100;
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slot.showShellCover = false;
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});
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}
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Future<void> _loadShellBrandingIfNeeded() async {
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if (_shellBrandingLoaded) {
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return;
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}
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final shellBranding = await ShellBranding.load();
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_shellBrandingLoaded = true;
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if (!mounted) {
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_shellBranding = shellBranding;
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return;
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}
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setState(() {
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_shellBranding = shellBranding;
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});
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}
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Future<void> _syncShellBranding(int lineIndex) {
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final payload = jsonEncode({
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'name': _shellBranding.appName,
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'logo': _shellBranding.appLogo,
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});
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final script = '''
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(() => {
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try {
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const brand = $payload;
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window.sessionStorage.setItem('OPENIM_FLUTTER_SHELL_BRAND', JSON.stringify(brand));
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window.dispatchEvent(new CustomEvent('openim-shell-branding-updated', { detail: brand }));
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} catch (_) {}
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})();
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''';
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return _runJavaScriptSafely(lineIndex, script);
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}
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Future<void> _installRouteObserver(int lineIndex) {
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const script = '''
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(() => {
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try {
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const notify = () => {
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try {
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window.OpenIMShell.postMessage(JSON.stringify({
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type: 'route-changed',
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url: window.location.href
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}));
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} catch (_) {}
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};
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if (window.__OPENIM_FLUTTER_ROUTE_OBSERVER__) {
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window.__OPENIM_FLUTTER_ROUTE_OBSERVER__.notify();
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return;
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}
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const originalPushState = window.history.pushState;
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const originalReplaceState = window.history.replaceState;
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window.history.pushState = function() {
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const result = originalPushState.apply(this, arguments);
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notify();
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return result;
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};
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window.history.replaceState = function() {
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const result = originalReplaceState.apply(this, arguments);
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notify();
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return result;
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};
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window.addEventListener('popstate', notify);
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window.__OPENIM_FLUTTER_ROUTE_OBSERVER__ = { notify };
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notify();
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} catch (_) {}
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})();
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''';
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return _runJavaScriptSafely(lineIndex, script);
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}
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void _updateSlotUrl(int lineIndex, String? url) {
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if (url == null || lineIndex < 0 || lineIndex >= _lineSlots.length) {
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return;
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}
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final slot = _lineSlots[lineIndex];
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final changed = slot.setCurrentUrl(url);
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if (changed && mounted) {
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setState(() {});
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}
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}
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Future<void> _ensureLineLoaded(int lineIndex) async {
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final slot = _lineSlots[lineIndex];
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if (slot.hasLoadedInitialRequest) {
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return;
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}
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slot.hasLoadedInitialRequest = true;
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if (mounted) {
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slot.shellCoverFallbackTimer?.cancel();
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setState(() {
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slot.setCurrentUrl(slot.line.url);
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slot.loadError = null;
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slot.progress = 0;
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slot.showShellCover = true;
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});
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}
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await slot.controller.loadRequest(Uri.parse(slot.line.url));
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}
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Future<void> _reloadCurrentLine() async {
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final slot = _currentSlot;
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slot.shellCoverFallbackTimer?.cancel();
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if (mounted) {
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setState(() {
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slot.loadError = null;
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slot.progress = 0;
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slot.showShellCover = true;
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});
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}
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if (slot.hasLoadedInitialRequest) {
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await slot.controller.reload();
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} else {
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await _ensureLineLoaded(_currentLineIndex);
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}
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}
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Future<void> _loadLine(int index) async {
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final safeIndex = index < 0 || index >= _h5Lines.length ? 0 : index;
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if (mounted) {
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setState(() {
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_currentLineIndex = safeIndex;
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});
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}
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await _ensureLineLoaded(safeIndex);
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}
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void _showLineSwitcher() {
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showModalBottomSheet<void>(
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context: context,
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useSafeArea: true,
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showDragHandle: true,
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backgroundColor: Colors.white,
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shape: const RoundedRectangleBorder(
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borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
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),
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builder: (sheetContext) {
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return _LineSwitcherSheet(
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lines: _h5Lines,
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currentIndex: _currentLineIndex,
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onSelect: (index) {
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Navigator.of(sheetContext).pop();
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if (index != _currentLineIndex) {
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unawaited(_loadLine(index));
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}
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},
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);
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},
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);
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}
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Future<NavigationDecision> _handleNavigationRequest(
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NavigationRequest request,
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) async {
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final uri = Uri.tryParse(request.url);
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if (uri == null) {
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return NavigationDecision.prevent;
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}
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const webSchemes = {'http', 'https', 'about', 'data'};
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if (webSchemes.contains(uri.scheme)) {
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return NavigationDecision.navigate;
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}
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try {
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await launchUrl(uri, mode: LaunchMode.externalApplication);
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} catch (_) {
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// Ignore unsupported custom schemes so the WebView does not navigate to
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// an error page.
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}
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return NavigationDecision.prevent;
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}
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Future<void> _handleBackNavigation() async {
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final controller = _currentSlot.controller;
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if (await controller.canGoBack()) {
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await controller.goBack();
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} else {
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await SystemNavigator.pop();
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}
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}
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@override
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Widget build(BuildContext context) {
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final currentSlot = _currentSlot;
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final bottomInset = MediaQuery.viewInsetsOf(context).bottom;
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final showLineSwitch = !currentSlot.showShellCover &&
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currentSlot.loadError == null &&
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currentSlot.isLoginPage &&
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bottomInset == 0;
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return PopScope(
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canPop: false,
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onPopInvokedWithResult: (didPop, _) {
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if (!didPop) {
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unawaited(_handleBackNavigation());
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}
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},
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child: Scaffold(
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backgroundColor: _shellBackground,
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body: SafeArea(
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bottom: false,
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child: Stack(
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children: [
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Positioned.fill(
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child: _ShellFallback(progress: currentSlot.progress),
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),
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Positioned.fill(
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child: IndexedStack(
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index: _currentLineIndex,
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children: [
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for (var index = 0; index < _lineSlots.length; index += 1)
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WebViewWidget(
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key: ValueKey<int>(index),
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controller: _lineSlots[index].controller,
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),
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],
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),
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),
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if (currentSlot.showShellCover)
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Positioned.fill(
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child: IgnorePointer(
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child: _ShellFallback(progress: currentSlot.progress),
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),
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),
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if (!currentSlot.showShellCover && currentSlot.progress < 100)
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LinearProgressIndicator(
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value: currentSlot.progress == 0
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? null
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: currentSlot.progress / 100,
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minHeight: 2,
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),
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if (currentSlot.loadError != null)
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_ErrorPanel(
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message: currentSlot.loadError!,
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onRetry: () => unawaited(_reloadCurrentLine()),
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),
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if (showLineSwitch)
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Positioned(
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left: 20,
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right: 20,
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bottom: MediaQuery.paddingOf(context).bottom + 14,
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child: _LineSwitchBar(
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currentLine: _currentLine,
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onSwitch: _showLineSwitcher,
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),
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),
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],
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),
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),
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),
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);
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}
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}
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|
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class _H5LineWebViewSlot {
|
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_H5LineWebViewSlot({
|
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required this.line,
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required this.controller,
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});
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|
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final H5Line line;
|
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final WebViewController controller;
|
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|
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int progress = 0;
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String? loadError;
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bool showShellCover = true;
|
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bool hasLoadedInitialRequest = false;
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bool isLoginPage = false;
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String? currentUrl;
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Timer? shellCoverFallbackTimer;
|
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|
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bool setCurrentUrl(String url) {
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final nextIsLoginPage = AppConfig.isLoginPageUrl(url);
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if (currentUrl == url && isLoginPage == nextIsLoginPage) {
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return false;
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}
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currentUrl = url;
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isLoginPage = nextIsLoginPage;
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return true;
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}
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|
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void dispose() {
|
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shellCoverFallbackTimer?.cancel();
|
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}
|
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}
|
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|
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class _ErrorPanel extends StatelessWidget {
|
|
const _ErrorPanel({required this.message, required this.onRetry});
|
|
|
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final String message;
|
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final VoidCallback onRetry;
|
|
|
|
@override
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Widget build(BuildContext context) {
|
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return ColoredBox(
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color: Colors.white,
|
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child: Center(
|
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child: Padding(
|
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padding: const EdgeInsets.all(24),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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const Icon(Icons.wifi_off_rounded, size: 44),
|
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const SizedBox(height: 16),
|
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const Text(
|
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'页面加载失败',
|
|
style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600),
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|
),
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const SizedBox(height: 8),
|
|
Text(
|
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message,
|
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textAlign: TextAlign.center,
|
|
style: Theme.of(context).textTheme.bodyMedium,
|
|
),
|
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const SizedBox(height: 20),
|
|
FilledButton(
|
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onPressed: onRetry,
|
|
child: const Text('重新加载'),
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),
|
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],
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),
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),
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),
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);
|
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}
|
|
}
|
|
|
|
class _LineSwitchBar extends StatelessWidget {
|
|
const _LineSwitchBar({
|
|
required this.currentLine,
|
|
required this.onSwitch,
|
|
});
|
|
|
|
final H5Line currentLine;
|
|
final VoidCallback onSwitch;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Center(
|
|
child: ConstrainedBox(
|
|
constraints: const BoxConstraints(maxWidth: 560),
|
|
child: SizedBox(
|
|
width: double.infinity,
|
|
child: Material(
|
|
color: Colors.white.withValues(alpha: 0.94),
|
|
elevation: 8,
|
|
shadowColor: const Color(0xFF0F4C81).withValues(alpha: 0.12),
|
|
borderRadius: BorderRadius.circular(32),
|
|
child: InkWell(
|
|
onTap: onSwitch,
|
|
borderRadius: BorderRadius.circular(32),
|
|
child: Container(
|
|
height: 64,
|
|
padding: const EdgeInsets.symmetric(horizontal: 18),
|
|
decoration: BoxDecoration(
|
|
borderRadius: BorderRadius.circular(32),
|
|
border: Border.all(color: const Color(0xFFE1EAF5)),
|
|
),
|
|
child: Row(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
const Icon(
|
|
Icons.sync_rounded,
|
|
size: 19,
|
|
color: _shellSubText,
|
|
),
|
|
const SizedBox(width: 8),
|
|
const Text(
|
|
'当前: ',
|
|
style: TextStyle(
|
|
color: _shellSubText,
|
|
fontSize: 15,
|
|
height: 1.2,
|
|
fontWeight: FontWeight.w600,
|
|
letterSpacing: 0,
|
|
),
|
|
),
|
|
Flexible(
|
|
child: Text(
|
|
currentLine.label,
|
|
overflow: TextOverflow.ellipsis,
|
|
style: const TextStyle(
|
|
color: Color(0xFF17233D),
|
|
fontSize: 16,
|
|
height: 1.2,
|
|
fontWeight: FontWeight.w700,
|
|
letterSpacing: 0,
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(width: 12),
|
|
const Text(
|
|
'切换',
|
|
style: TextStyle(
|
|
color: _shellAccent,
|
|
fontSize: 15,
|
|
height: 1.2,
|
|
fontWeight: FontWeight.w700,
|
|
letterSpacing: 0,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _LineSwitcherSheet extends StatelessWidget {
|
|
const _LineSwitcherSheet({
|
|
required this.lines,
|
|
required this.currentIndex,
|
|
required this.onSelect,
|
|
});
|
|
|
|
final List<H5Line> lines;
|
|
final int currentIndex;
|
|
final ValueChanged<int> onSelect;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final sheetHeight = MediaQuery.sizeOf(context).height * 0.58;
|
|
final maxHeight = sheetHeight > 420 ? 420.0 : sheetHeight;
|
|
|
|
return Padding(
|
|
padding: const EdgeInsets.fromLTRB(20, 0, 20, 16),
|
|
child: Column(
|
|
mainAxisSize: MainAxisSize.min,
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
const Text(
|
|
'切换线路',
|
|
style: TextStyle(
|
|
color: Color(0xFF17233D),
|
|
fontSize: 18,
|
|
height: 1.2,
|
|
fontWeight: FontWeight.w700,
|
|
letterSpacing: 0,
|
|
),
|
|
),
|
|
const SizedBox(height: 14),
|
|
ConstrainedBox(
|
|
constraints: BoxConstraints(maxHeight: maxHeight),
|
|
child: ListView.separated(
|
|
shrinkWrap: true,
|
|
itemCount: lines.length,
|
|
separatorBuilder: (context, index) => const SizedBox(height: 10),
|
|
itemBuilder: (context, index) {
|
|
final line = lines[index];
|
|
final selected = index == currentIndex;
|
|
|
|
return _LineOptionTile(
|
|
line: line,
|
|
selected: selected,
|
|
onTap: () => onSelect(index),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _LineOptionTile extends StatelessWidget {
|
|
const _LineOptionTile({
|
|
required this.line,
|
|
required this.selected,
|
|
required this.onTap,
|
|
});
|
|
|
|
final H5Line line;
|
|
final bool selected;
|
|
final VoidCallback onTap;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Material(
|
|
color: selected ? const Color(0xFFEFF7FF) : Colors.white,
|
|
borderRadius: BorderRadius.circular(8),
|
|
child: InkWell(
|
|
onTap: onTap,
|
|
borderRadius: BorderRadius.circular(8),
|
|
child: Container(
|
|
constraints: const BoxConstraints(minHeight: 64),
|
|
padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 10),
|
|
decoration: BoxDecoration(
|
|
borderRadius: BorderRadius.circular(8),
|
|
border: Border.all(
|
|
color: selected ? _shellAccent : const Color(0xFFE1EAF5),
|
|
),
|
|
),
|
|
child: Row(
|
|
children: [
|
|
Icon(
|
|
selected
|
|
? Icons.radio_button_checked_rounded
|
|
: Icons.radio_button_unchecked_rounded,
|
|
color: selected ? _shellAccent : _shellSubText,
|
|
size: 22,
|
|
),
|
|
const SizedBox(width: 12),
|
|
Expanded(
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
Text(
|
|
line.label,
|
|
maxLines: 1,
|
|
overflow: TextOverflow.ellipsis,
|
|
style: const TextStyle(
|
|
color: Color(0xFF17233D),
|
|
fontSize: 16,
|
|
height: 1.2,
|
|
fontWeight: FontWeight.w700,
|
|
letterSpacing: 0,
|
|
),
|
|
),
|
|
const SizedBox(height: 4),
|
|
Text(
|
|
line.displayAddress,
|
|
maxLines: 1,
|
|
overflow: TextOverflow.ellipsis,
|
|
style: const TextStyle(
|
|
color: _shellSubText,
|
|
fontSize: 12,
|
|
height: 1.2,
|
|
fontWeight: FontWeight.w500,
|
|
letterSpacing: 0,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
const SizedBox(width: 8),
|
|
const Icon(
|
|
Icons.chevron_right_rounded,
|
|
color: _shellSubText,
|
|
size: 22,
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _ShellFallback extends StatelessWidget {
|
|
const _ShellFallback({required this.progress});
|
|
|
|
final int progress;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final progressValue =
|
|
progress <= 0 ? 0.42 : (0.18 + progress.clamp(0, 100) * 0.0074);
|
|
|
|
return CustomPaint(
|
|
painter: const _H5LoadingBackgroundPainter(),
|
|
child: LayoutBuilder(
|
|
builder: (context, constraints) {
|
|
final markSize = (constraints.maxWidth * 0.37).clamp(118.0, 152.0);
|
|
final contentTop = constraints.maxHeight * 0.29;
|
|
final progressWidth =
|
|
(constraints.maxWidth * 0.28).clamp(104.0, 132.0);
|
|
|
|
return Align(
|
|
alignment: Alignment.topCenter,
|
|
child: Padding(
|
|
padding: EdgeInsets.only(top: contentTop),
|
|
child: Column(
|
|
mainAxisSize: MainAxisSize.min,
|
|
children: [
|
|
_ShellMark(size: markSize),
|
|
SizedBox(height: markSize * 0.16),
|
|
const Text(
|
|
'心有回响',
|
|
style: TextStyle(
|
|
color: _shellAccent,
|
|
fontSize: 24,
|
|
height: 1.2,
|
|
fontWeight: FontWeight.w700,
|
|
letterSpacing: 0,
|
|
),
|
|
),
|
|
const SizedBox(height: 8),
|
|
const Text(
|
|
'正在为你唤醒会话',
|
|
style: TextStyle(
|
|
color: _shellSubText,
|
|
fontSize: 12,
|
|
height: 1.2,
|
|
letterSpacing: 0,
|
|
),
|
|
),
|
|
const SizedBox(height: 30),
|
|
_H5LoadingProgress(
|
|
width: progressWidth,
|
|
value: progressValue.clamp(0.18, 0.96),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _ShellMark extends StatelessWidget {
|
|
const _ShellMark({required this.size});
|
|
|
|
final double size;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return CustomPaint(
|
|
size: Size(size, size * 0.92),
|
|
painter: const _BubbleCheckPainter(),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _H5LoadingProgress extends StatelessWidget {
|
|
const _H5LoadingProgress({required this.width, required this.value});
|
|
|
|
final double width;
|
|
final double value;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ClipRRect(
|
|
borderRadius: BorderRadius.circular(99),
|
|
child: SizedBox(
|
|
width: width,
|
|
height: 4,
|
|
child: Stack(
|
|
fit: StackFit.expand,
|
|
children: [
|
|
const ColoredBox(color: Color(0xFFDCEEFF)),
|
|
TweenAnimationBuilder<double>(
|
|
tween: Tween<double>(end: value),
|
|
duration: const Duration(milliseconds: 260),
|
|
curve: Curves.easeOutCubic,
|
|
builder: (context, animatedValue, _) {
|
|
return FractionallySizedBox(
|
|
alignment: Alignment.centerLeft,
|
|
widthFactor: animatedValue,
|
|
child: const ColoredBox(color: _shellAccent),
|
|
);
|
|
},
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _H5LoadingBackgroundPainter extends CustomPainter {
|
|
const _H5LoadingBackgroundPainter();
|
|
|
|
static const _sourceSize = Size(1080, 2400);
|
|
|
|
@override
|
|
void paint(Canvas canvas, Size size) {
|
|
final scale =
|
|
(size.width / _sourceSize.width) > (size.height / _sourceSize.height)
|
|
? size.width / _sourceSize.width
|
|
: size.height / _sourceSize.height;
|
|
final dx = (size.width - _sourceSize.width * scale) / 2;
|
|
final dy = (size.height - _sourceSize.height * scale) / 2;
|
|
|
|
canvas.save();
|
|
canvas.translate(dx, dy);
|
|
canvas.scale(scale);
|
|
|
|
final pageRect = Offset.zero & _sourceSize;
|
|
final pagePaint = Paint()
|
|
..shader = const LinearGradient(
|
|
begin: Alignment.topCenter,
|
|
end: Alignment.bottomCenter,
|
|
colors: [
|
|
Color(0xFFE7F4FF),
|
|
_shellBackground,
|
|
Colors.white,
|
|
],
|
|
stops: [0, 0.46, 1],
|
|
).createShader(pageRect);
|
|
canvas.drawRect(pageRect, pagePaint);
|
|
|
|
final topWave = Path()
|
|
..moveTo(0, 0)
|
|
..lineTo(1080, 0)
|
|
..lineTo(1080, 318)
|
|
..cubicTo(920, 246, 780, 246, 660, 318)
|
|
..cubicTo(512, 407, 387, 410, 284, 348)
|
|
..cubicTo(174, 282, 79, 281, 0, 344)
|
|
..close();
|
|
canvas.drawPath(
|
|
topWave,
|
|
Paint()..color = const Color(0xFFDDF1FF).withValues(alpha: 0.68),
|
|
);
|
|
|
|
final bottomWave = Path()
|
|
..moveTo(1080, 855)
|
|
..lineTo(1080, 2400)
|
|
..lineTo(0, 2400)
|
|
..lineTo(0, 1942)
|
|
..cubicTo(124, 1854, 265, 1834, 423, 1883)
|
|
..cubicTo(598, 1937, 744, 1905, 862, 1788)
|
|
..cubicTo(934, 1717, 1007, 1678, 1080, 1672)
|
|
..close();
|
|
canvas.drawPath(
|
|
bottomWave,
|
|
Paint()..color = const Color(0xFFF4FAFF).withValues(alpha: 0.86),
|
|
);
|
|
|
|
canvas.restore();
|
|
}
|
|
|
|
@override
|
|
bool shouldRepaint(covariant _H5LoadingBackgroundPainter oldDelegate) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
class _BubbleCheckPainter extends CustomPainter {
|
|
const _BubbleCheckPainter();
|
|
|
|
static const _viewBox = Size(400, 363.33);
|
|
|
|
@override
|
|
void paint(Canvas canvas, Size size) {
|
|
final scale =
|
|
(size.width / _viewBox.width) < (size.height / _viewBox.height)
|
|
? size.width / _viewBox.width
|
|
: size.height / _viewBox.height;
|
|
final dx = (size.width - _viewBox.width * scale) / 2;
|
|
final dy = (size.height - _viewBox.height * scale) / 2;
|
|
|
|
canvas.save();
|
|
canvas.translate(dx, dy);
|
|
canvas.scale(scale);
|
|
|
|
final bubble = Path()
|
|
..moveTo(200, 0)
|
|
..cubicTo(89.54, 0, 0, 81.33, 0, 181.67)
|
|
..cubicTo(0, 282, 89.54, 363.33, 200, 363.33)
|
|
..cubicTo(237.89, 363.33, 273.32, 353.77, 303.52, 337.16)
|
|
..lineTo(386.67, 363.33)
|
|
..lineTo(355.95, 290.69)
|
|
..cubicTo(383.61, 260.37, 400, 222.36, 400, 181.67)
|
|
..cubicTo(400, 81.33, 310.46, 0, 200, 0)
|
|
..close();
|
|
|
|
final shadowPaint = Paint()
|
|
..color = const Color(0xFF026CD5).withValues(alpha: 0.18)
|
|
..maskFilter = const MaskFilter.blur(BlurStyle.normal, 34);
|
|
canvas.save();
|
|
canvas.translate(0, 30);
|
|
canvas.drawPath(bubble, shadowPaint);
|
|
canvas.restore();
|
|
|
|
final bubblePaint = Paint()
|
|
..shader = const LinearGradient(
|
|
begin: Alignment.topLeft,
|
|
end: Alignment.bottomRight,
|
|
colors: [
|
|
Color(0xFFA8DDFF),
|
|
_shellAccent,
|
|
Color(0xFF0066E8),
|
|
],
|
|
stops: [0, 0.48, 1],
|
|
).createShader(Offset.zero & _viewBox);
|
|
canvas.drawPath(bubble, bubblePaint);
|
|
|
|
final highlightPaint = Paint()
|
|
..shader = LinearGradient(
|
|
begin: Alignment.topLeft,
|
|
end: Alignment.bottomRight,
|
|
colors: [
|
|
Colors.white.withValues(alpha: 0.38),
|
|
Colors.white.withValues(alpha: 0),
|
|
],
|
|
).createShader(Offset.zero & _viewBox);
|
|
canvas.drawPath(bubble, highlightPaint);
|
|
|
|
final check = Path()
|
|
..moveTo(101, 163.5)
|
|
..lineTo(170.5, 233)
|
|
..lineTo(306, 97.5);
|
|
canvas.drawPath(
|
|
check,
|
|
Paint()
|
|
..color = Colors.white
|
|
..style = PaintingStyle.stroke
|
|
..strokeWidth = 58
|
|
..strokeCap = StrokeCap.round
|
|
..strokeJoin = StrokeJoin.round,
|
|
);
|
|
|
|
canvas.restore();
|
|
}
|
|
|
|
@override
|
|
bool shouldRepaint(covariant _BubbleCheckPainter oldDelegate) {
|
|
return false;
|
|
}
|
|
}
|