f232c4d10a
WebView 背景从白色改成透明。 WebView 不再无条件渲染，只有已发起初始加载或首屏已展示后才渲染。 首屏未 ready 时，用 shell cover/fallback 盖住 WebView，避免白屏或 WebView 空白层提前露出。 顶部安全区背景色跟随 shell 背景，减少状态栏区域闪白
1512 lines
43 KiB
Dart
1512 lines
43 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/gestures.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:permission_handler/permission_handler.dart';
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import 'package:shared_preferences/shared_preferences.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 'package:webview_flutter_android/webview_flutter_android.dart';
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import 'config/app_config.dart';
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const _shellBackground = Color(0xFFF6FAFF);
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const _shellAccent = Color(0xFF168CFF);
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const _shellAccentDeep = Color(0xFF0066D9);
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const _shellInk = Color(0xFF17233D);
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const _shellSubText = Color(0xFF7C8AA3);
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const _shellBrandingChannel = MethodChannel(
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'io.openim.flutter.im_webview_app/shell_branding',
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);
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const _androidFilePickerChannel = MethodChannel(
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'io.openim.flutter.openim/file_picker',
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);
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const _keyboardAnimationDuration = Duration(milliseconds: 250);
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const _h5DomainCacheUrlKey = 'h5_random_domain_url_v1';
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const _lineProbeTimeout = Duration(seconds: 5);
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const _maxGeneratedLineAttempts = 6;
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const _longBackgroundRefreshThreshold = Duration(minutes: 20);
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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.white,
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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({required this.appName, required this.appLogo});
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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.invokeMapMethod<String, String>(
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'getShellBranding',
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);
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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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enum _LineAvailability { checking, available, unavailable }
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class ImWebViewApp extends StatelessWidget {
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const ImWebViewApp({super.key, this.shellBranding = ShellBranding.fallback});
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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: Colors.white,
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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> with WidgetsBindingObserver {
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static final Set<Factory<OneSequenceGestureRecognizer>>
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_webViewGestureRecognizers = <Factory<OneSequenceGestureRecognizer>>{
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Factory<EagerGestureRecognizer>(() => EagerGestureRecognizer()),
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};
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late H5Line _h5Line;
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late _H5LineWebViewSlot _lineSlot;
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bool _shellBrandingLoaded = false;
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bool _isPreparingInitialLine = true;
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bool _isReplacingUnavailableLine = false;
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double _lastKeyboardInset = 0;
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bool _lastKeyboardVisible = false;
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int _keyboardSyncToken = 0;
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int _lineGeneration = 0;
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int _h5LineAttempt = 0;
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int _resumeRecoveryToken = 0;
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DateTime? _backgroundedAt;
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late ShellBranding _shellBranding;
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_H5LineWebViewSlot get _currentSlot => _lineSlot;
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance.addObserver(this);
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_h5Line = AppConfig.h5Line;
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_shellBranding = widget.initialShellBranding;
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_lineSlot = _createLineSlot(_h5Line);
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unawaited(_initializeLines());
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}
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_H5LineWebViewSlot _createLineSlot(H5Line line) {
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final generation = _lineGeneration;
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return _H5LineWebViewSlot(
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line: line,
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controller: _buildController(generation),
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);
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}
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WebViewController _buildController(int generation) {
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final controller = WebViewController(
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onPermissionRequest: (request) {
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unawaited(_handleWebViewPermissionRequest(request));
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},
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)
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..setJavaScriptMode(JavaScriptMode.unrestricted)
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..addJavaScriptChannel(
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'OpenIMShell',
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onMessageReceived: (message) =>
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_handleShellMessage(generation, message),
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)
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..addJavaScriptChannel(
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'OpenIMFlutterShell',
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onMessageReceived: (message) =>
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_handleFlutterShellMessage(generation, message),
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)
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..setBackgroundColor(Colors.transparent)
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..setNavigationDelegate(
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NavigationDelegate(
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onProgress: (progress) {
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if (!_isCurrentLineGeneration(generation)) {
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return;
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}
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final slot = _lineSlot;
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final nextProgress = progress.clamp(0, 100).toInt();
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if (slot.progress == nextProgress) {
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return;
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}
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slot.progress = nextProgress;
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if (mounted && slot.isAwaitingFirstScreen) {
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setState(() {});
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}
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},
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onPageStarted: (url) {
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if (!_isCurrentLineGeneration(generation)) {
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return;
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}
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final slot = _lineSlot;
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final shouldShowCover = !slot.hasPresentedFirstScreen;
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slot.shellCoverFallbackTimer?.cancel();
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slot.loadError = null;
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slot.progress = 0;
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slot.showShellCover = shouldShowCover;
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if (mounted) {
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setState(() {});
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}
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},
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onPageFinished: (_) {
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unawaited(_handlePageFinished(generation));
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},
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onWebResourceError: (error) {
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if (!_isCurrentLineGeneration(generation)) {
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return;
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}
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if (error.isForMainFrame ?? true) {
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_handleMainFrameLoadError(error.description);
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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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_configurePlatformController(controller);
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return controller;
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}
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void _configurePlatformController(WebViewController controller) {
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final platformController = controller.platform;
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if (platformController is AndroidWebViewController) {
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unawaited(
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platformController.setOnShowFileSelector(_handleAndroidFileSelection),
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);
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unawaited(platformController.setMediaPlaybackRequiresUserGesture(false));
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}
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}
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Future<List<String>> _handleAndroidFileSelection(
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FileSelectorParams params,
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) async {
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if (params.mode == FileSelectorMode.save) {
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return <String>[];
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}
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try {
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final result = await _androidFilePickerChannel
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.invokeListMethod<String>('pickFiles', {
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'acceptTypes': params.acceptTypes,
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'allowMultiple': params.mode == FileSelectorMode.openMultiple,
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'capture': params.isCaptureEnabled,
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});
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return result ?? <String>[];
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} catch (_) {
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return <String>[];
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}
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}
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@override
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void dispose() {
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WidgetsBinding.instance.removeObserver(this);
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_lineSlot.dispose();
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super.dispose();
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}
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@override
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void didChangeAppLifecycleState(AppLifecycleState state) {
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if (state == AppLifecycleState.paused ||
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state == AppLifecycleState.inactive ||
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state == AppLifecycleState.detached) {
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_backgroundedAt ??= DateTime.now();
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return;
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}
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if (state == AppLifecycleState.resumed) {
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final backgroundDuration = _backgroundedAt == null
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? Duration.zero
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: DateTime.now().difference(_backgroundedAt!);
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_backgroundedAt = null;
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unawaited(_recoverWebViewAfterResume(backgroundDuration));
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}
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}
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Future<void> _initializeLines() async {
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await _prepareAndLoadH5Line(forceNew: false);
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}
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Future<void> _prepareAndLoadH5Line({required bool forceNew}) async {
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var shouldCreateNewLine = forceNew;
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for (var attempt = 0; attempt < _maxGeneratedLineAttempts; attempt += 1) {
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final line = await _loadCachedOrCreateH5Line(
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forceNew: shouldCreateNewLine,
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);
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if (!mounted) {
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return;
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}
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_replaceLineSlotIfNeeded(line);
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final available = await _probeCurrentLine();
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if (!mounted) {
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return;
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}
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if (available) {
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setState(() {
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_isPreparingInitialLine = false;
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});
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await _loadCurrentLine(forceReload: true);
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return;
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}
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shouldCreateNewLine = true;
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}
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if (!mounted) {
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return;
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}
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setState(() {
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_isPreparingInitialLine = false;
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_currentSlot.loadError = '当前线路暂不可用，请稍后重试';
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_currentSlot.showShellCover = false;
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});
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}
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Future<H5Line> _loadCachedOrCreateH5Line({required bool forceNew}) async {
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try {
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final preferences = await SharedPreferences.getInstance();
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final cachedUrl = preferences.getString(_h5DomainCacheUrlKey);
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final cachedLine =
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cachedUrl == null ? null : AppConfig.h5LineFromUrl(cachedUrl);
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final canUseCachedLine = !forceNew && cachedLine != null;
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if (canUseCachedLine) {
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_logH5Line('复用已保存 H5 线路', cachedLine);
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return cachedLine;
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}
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final line = AppConfig.createRandomH5Line(attempt: _h5LineAttempt);
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_h5LineAttempt += 1;
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await preferences.setString(_h5DomainCacheUrlKey, line.url);
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_logH5Line('生成并保存 H5 线路', line);
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return line;
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} catch (_) {
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final line = AppConfig.createRandomH5Line(attempt: _h5LineAttempt);
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_h5LineAttempt += 1;
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_logH5Line('本地缓存不可用，生成临时随机线路', line);
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return line;
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}
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}
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Future<bool> _probeCurrentLine() async {
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final generation = _lineGeneration;
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final line = _lineSlot.line;
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_setLineAvailability(
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_LineAvailability.checking,
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generation: generation,
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line: line,
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);
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final available = await _isLineReachable(line);
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if (!mounted ||
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generation != _lineGeneration ||
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_lineSlot.line.url != line.url) {
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return false;
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}
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_setLineAvailability(
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available ? _LineAvailability.available : _LineAvailability.unavailable,
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generation: generation,
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line: line,
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);
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_logH5LineDebug(
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'线路探测: ${line.label} ${line.url} => ${available ? '可用' : '不可用'}',
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);
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return available;
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}
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Future<bool> _isLineReachable(H5Line line) async {
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final client = HttpClient()..connectionTimeout = _lineProbeTimeout;
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try {
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final request = await client.getUrl(line.uri).timeout(_lineProbeTimeout);
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request.followRedirects = true;
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request.maxRedirects = 5;
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final response = await request.close().timeout(_lineProbeTimeout);
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final available = response.statusCode >= 200 && response.statusCode < 400;
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unawaited(response.drain<void>().catchError((_) {}));
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return available;
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} catch (_) {
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return false;
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} finally {
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client.close(force: true);
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}
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}
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void _setLineAvailability(
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_LineAvailability availability, {
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required int generation,
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required H5Line line,
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}) {
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if (!mounted ||
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generation != _lineGeneration ||
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_lineSlot.line.url != line.url ||
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_lineSlot.availability == availability) {
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return;
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}
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setState(() {
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_lineSlot.availability = availability;
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});
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}
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void _replaceLineSlotIfNeeded(H5Line line) {
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if (_h5Line.url == line.url) {
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_logH5Line('WebView 使用的线路', _h5Line);
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return;
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}
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setState(() {
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_replaceLineSlot(line);
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});
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}
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void _replaceLineSlot(H5Line line) {
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_lineSlot.dispose();
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_lineGeneration += 1;
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_h5Line = line;
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_lineSlot = _createLineSlot(line);
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_logH5Line('WebView 使用的线路', _h5Line);
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}
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void _logH5Line(String title, H5Line line) {
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_logH5LineDebug('$title ${line.label} => ${line.url}');
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}
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void _logH5LineDebug(String message) {
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debugPrint('[H5LineDebug] $message');
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}
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bool _isCurrentLineGeneration(int generation) {
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return generation == _lineGeneration;
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}
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Future<void> _runJavaScriptSafely(String source) async {
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try {
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await _lineSlot.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 generation) async {
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if (!_isCurrentLineGeneration(generation)) {
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return;
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}
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await _loadShellBrandingIfNeeded();
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if (!_isCurrentLineGeneration(generation)) {
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return;
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}
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await _syncShellRequestUrl();
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await _syncShellBranding();
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await _syncKeyboardState();
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final slot = _lineSlot;
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slot.availability = _LineAvailability.available;
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slot.progress = 100;
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if (mounted && slot.isAwaitingFirstScreen) {
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setState(() {});
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}
|
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if (slot.showShellCover) {
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_scheduleShellCoverFallback(generation);
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} else {
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slot.shellCoverFallbackTimer?.cancel();
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}
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}
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void _handleShellMessage(int generation, JavaScriptMessage message) {
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if (!_isCurrentLineGeneration(generation)) {
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return;
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}
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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(generation);
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} else if (decoded is Map && decoded['type'] == 'keyboard-bridge-ready') {
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unawaited(_syncKeyboardState());
|
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} else if (decoded is Map && decoded['type'] == 'openExternalUrl') {
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unawaited(_openExternalUrl(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(generation);
|
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}
|
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}
|
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}
|
|
|
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void _handleFlutterShellMessage(int generation, JavaScriptMessage message) {
|
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if (!_isCurrentLineGeneration(generation)) {
|
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return;
|
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}
|
|
|
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try {
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final decoded = jsonDecode(message.message);
|
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if (decoded is! Map) {
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return;
|
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}
|
|
|
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switch (decoded['type']) {
|
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case 'requestMediaPermissions':
|
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final requestId = decoded['requestId']?.toString();
|
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if (requestId == null || requestId.isEmpty) {
|
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return;
|
|
}
|
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unawaited(
|
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_handleShellMediaPermissionRequest(
|
|
generation: generation,
|
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requestId: requestId,
|
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audio: decoded['audio'] == true,
|
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video: decoded['video'] == true,
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),
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);
|
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case 'openAppSettings':
|
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unawaited(openAppSettings());
|
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case 'keyboard-bridge-ready':
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unawaited(_syncKeyboardState());
|
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case 'openExternalUrl':
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unawaited(_openExternalUrl(decoded['url']?.toString()));
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}
|
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} catch (_) {
|
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// Ignore malformed shell messages from web content.
|
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}
|
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}
|
|
|
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void _scheduleShellCoverFallback(int generation) {
|
|
if (!_isCurrentLineGeneration(generation)) {
|
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return;
|
|
}
|
|
|
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final slot = _lineSlot;
|
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if (!slot.showShellCover) {
|
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return;
|
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}
|
|
|
|
slot.shellCoverFallbackTimer?.cancel();
|
|
slot.shellCoverFallbackTimer = Timer(
|
|
const Duration(milliseconds: 1800),
|
|
() => _hideShellCover(generation),
|
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);
|
|
}
|
|
|
|
void _hideShellCover(int generation) {
|
|
if (!_isCurrentLineGeneration(generation)) {
|
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return;
|
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}
|
|
|
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final slot = _lineSlot;
|
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slot.shellCoverFallbackTimer?.cancel();
|
|
if (slot.hasPresentedFirstScreen && !slot.showShellCover) {
|
|
return;
|
|
}
|
|
|
|
slot.hasPresentedFirstScreen = true;
|
|
slot.progress = 100;
|
|
slot.showShellCover = false;
|
|
if (!mounted) {
|
|
return;
|
|
}
|
|
|
|
setState(() {});
|
|
}
|
|
|
|
Future<void> _loadShellBrandingIfNeeded() async {
|
|
if (_shellBrandingLoaded) {
|
|
return;
|
|
}
|
|
|
|
final shellBranding = await ShellBranding.load();
|
|
_shellBrandingLoaded = true;
|
|
if (!mounted) {
|
|
_shellBranding = shellBranding;
|
|
return;
|
|
}
|
|
|
|
setState(() {
|
|
_shellBranding = shellBranding;
|
|
});
|
|
}
|
|
|
|
Future<void> _syncShellBranding() {
|
|
final payload = jsonEncode({
|
|
'name': _shellBranding.appName,
|
|
'logo': _shellBranding.appLogo,
|
|
});
|
|
final script = '''
|
|
(() => {
|
|
try {
|
|
const brand = $payload;
|
|
window.sessionStorage.setItem('OPENIM_FLUTTER_SHELL_BRAND', JSON.stringify(brand));
|
|
window.dispatchEvent(new CustomEvent('openim-shell-branding-updated', { detail: brand }));
|
|
} catch (_) {}
|
|
})();
|
|
''';
|
|
return _runJavaScriptSafely(script);
|
|
}
|
|
|
|
Future<void> _syncShellRequestUrl() {
|
|
final url = AppConfig.originForUrl(_lineSlot.line.url);
|
|
final payload = jsonEncode({'url': url});
|
|
final script = '''
|
|
(() => {
|
|
try {
|
|
const payload = $payload;
|
|
window.sessionStorage.setItem('OPENIM_FLUTTER_SHELL_REQUEST_URL', payload.url);
|
|
window.dispatchEvent(new CustomEvent('openim-shell-request-url-updated', { detail: payload }));
|
|
} catch (_) {}
|
|
})();
|
|
''';
|
|
return _runJavaScriptSafely(script);
|
|
}
|
|
|
|
void _scheduleKeyboardStateSync(double bottomInset) {
|
|
final nextInset = bottomInset < 1 ? 0.0 : bottomInset;
|
|
final nextVisible = nextInset > 0;
|
|
if ((nextInset - _lastKeyboardInset).abs() < 1 &&
|
|
nextVisible == _lastKeyboardVisible) {
|
|
return;
|
|
}
|
|
|
|
_lastKeyboardInset = nextInset;
|
|
_lastKeyboardVisible = nextVisible;
|
|
final token = ++_keyboardSyncToken;
|
|
|
|
WidgetsBinding.instance.addPostFrameCallback((_) {
|
|
if (!mounted || token != _keyboardSyncToken) {
|
|
return;
|
|
}
|
|
unawaited(_syncKeyboardState());
|
|
});
|
|
}
|
|
|
|
Future<void> _syncKeyboardState() {
|
|
final payload = jsonEncode({
|
|
'height': _lastKeyboardInset.round(),
|
|
'visible': _lastKeyboardVisible,
|
|
'duration': _keyboardAnimationDuration.inMilliseconds,
|
|
});
|
|
final script = '''
|
|
(() => {
|
|
try {
|
|
const keyboard = $payload;
|
|
if (typeof window.__OPENIM_KEYBOARD_UPDATE__ === 'function') {
|
|
window.__OPENIM_KEYBOARD_UPDATE__(keyboard);
|
|
return;
|
|
}
|
|
if (typeof window.openIMKeyboardUpdate === 'function') {
|
|
window.openIMKeyboardUpdate(keyboard);
|
|
}
|
|
} catch (_) {}
|
|
})();
|
|
''';
|
|
return _runJavaScriptSafely(script);
|
|
}
|
|
|
|
Future<void> _notifyH5AppResumed(Duration backgroundDuration) {
|
|
final payload = jsonEncode({
|
|
'backgroundDurationMs': backgroundDuration.inMilliseconds,
|
|
'refreshedAt': DateTime.now().millisecondsSinceEpoch,
|
|
});
|
|
final script = '''
|
|
(() => {
|
|
try {
|
|
const detail = $payload;
|
|
window.dispatchEvent(new CustomEvent('openim-shell-app-resumed', { detail }));
|
|
} catch (_) {}
|
|
})();
|
|
''';
|
|
return _runJavaScriptSafely(script);
|
|
}
|
|
|
|
Future<bool> _isH5RuntimeResponsive() async {
|
|
try {
|
|
final result = await _lineSlot.controller.runJavaScriptReturningResult(
|
|
'''
|
|
(() => {
|
|
try {
|
|
return JSON.stringify({
|
|
marker: 'openim-h5-runtime-alive',
|
|
readyState: document.readyState,
|
|
href: window.location.href,
|
|
now: Date.now()
|
|
});
|
|
} catch (_) {
|
|
return 'openim-h5-runtime-error';
|
|
}
|
|
})();
|
|
''',
|
|
).timeout(const Duration(seconds: 2));
|
|
return result.toString().contains('openim-h5-runtime-alive');
|
|
} catch (_) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
Future<Uri> _currentReloadUri({required bool cacheBust}) async {
|
|
String? currentUrl;
|
|
try {
|
|
currentUrl = await _lineSlot.controller.currentUrl();
|
|
} catch (_) {
|
|
currentUrl = null;
|
|
}
|
|
|
|
final parsedCurrentUrl =
|
|
currentUrl == null ? null : Uri.tryParse(currentUrl);
|
|
final uri = parsedCurrentUrl?.hasScheme == true
|
|
? parsedCurrentUrl!
|
|
: Uri.parse(_lineSlot.line.url);
|
|
|
|
if (!cacheBust) {
|
|
return uri;
|
|
}
|
|
|
|
final queryParameters = Map<String, String>.from(uri.queryParameters)
|
|
..['_shell_resume_ts'] = DateTime.now().millisecondsSinceEpoch.toString();
|
|
return uri.replace(queryParameters: queryParameters);
|
|
}
|
|
|
|
Future<void> _recoverWebViewAfterResume(Duration backgroundDuration) async {
|
|
final token = ++_resumeRecoveryToken;
|
|
final generation = _lineGeneration;
|
|
await _syncShellRequestUrl();
|
|
await _syncShellBranding();
|
|
await _syncKeyboardState();
|
|
await _notifyH5AppResumed(backgroundDuration);
|
|
|
|
if (!_isCurrentLineGeneration(generation) ||
|
|
token != _resumeRecoveryToken ||
|
|
backgroundDuration < _longBackgroundRefreshThreshold) {
|
|
return;
|
|
}
|
|
|
|
final responsive = await _isH5RuntimeResponsive();
|
|
if (!mounted ||
|
|
!_isCurrentLineGeneration(generation) ||
|
|
token != _resumeRecoveryToken) {
|
|
return;
|
|
}
|
|
|
|
_logH5LineDebug(
|
|
'后台 ${backgroundDuration.inMinutes} 分钟后恢复，'
|
|
'${responsive ? '刷新 WebView 以拉取最新 H5' : 'WebView JS 无响应，重载当前页'}',
|
|
);
|
|
await _reloadCurrentLine(forceRefresh: true);
|
|
}
|
|
|
|
Future<void> _handleShellMediaPermissionRequest({
|
|
required int generation,
|
|
required String requestId,
|
|
required bool audio,
|
|
required bool video,
|
|
}) async {
|
|
final result = await _requestNativeMediaPermissions(
|
|
audio: audio,
|
|
video: video,
|
|
);
|
|
if (!_isCurrentLineGeneration(generation)) {
|
|
return;
|
|
}
|
|
|
|
final payload = jsonEncode({
|
|
'requestId': requestId,
|
|
'granted': result.granted,
|
|
'permanentlyDenied': result.permanentlyDenied,
|
|
'restricted': result.restricted,
|
|
});
|
|
final script = '''
|
|
(() => {
|
|
try {
|
|
window.dispatchEvent(new CustomEvent('openim-shell-media-permission-result', { detail: $payload }));
|
|
} catch (_) {}
|
|
})();
|
|
''';
|
|
await _runJavaScriptSafely(script);
|
|
}
|
|
|
|
Future<void> _handleWebViewPermissionRequest(
|
|
WebViewPermissionRequest request,
|
|
) async {
|
|
final requestsOnlySupportedMediaTypes = request.types.every(
|
|
(type) =>
|
|
type == WebViewPermissionResourceType.camera ||
|
|
type == WebViewPermissionResourceType.microphone,
|
|
);
|
|
if (!requestsOnlySupportedMediaTypes) {
|
|
await request.deny();
|
|
return;
|
|
}
|
|
|
|
final result = await _requestNativeMediaPermissions(
|
|
audio: request.types.contains(WebViewPermissionResourceType.microphone),
|
|
video: request.types.contains(WebViewPermissionResourceType.camera),
|
|
);
|
|
|
|
if (result.granted) {
|
|
await request.grant();
|
|
} else {
|
|
await request.deny();
|
|
}
|
|
}
|
|
|
|
Future<_NativeMediaPermissionResult> _requestNativeMediaPermissions({
|
|
required bool audio,
|
|
required bool video,
|
|
}) async {
|
|
final permissions = <Permission>[
|
|
if (audio) Permission.microphone,
|
|
if (video) Permission.camera,
|
|
];
|
|
|
|
if (permissions.isEmpty) {
|
|
return const _NativeMediaPermissionResult(granted: true);
|
|
}
|
|
|
|
var granted = true;
|
|
var permanentlyDenied = false;
|
|
var restricted = false;
|
|
|
|
for (final permission in permissions) {
|
|
final status = await permission.request();
|
|
granted = granted && status.isGranted;
|
|
permanentlyDenied = permanentlyDenied || status.isPermanentlyDenied;
|
|
restricted = restricted || status.isRestricted;
|
|
}
|
|
|
|
return _NativeMediaPermissionResult(
|
|
granted: granted,
|
|
permanentlyDenied: permanentlyDenied,
|
|
restricted: restricted,
|
|
);
|
|
}
|
|
|
|
void _handleMainFrameLoadError(String description) {
|
|
final slot = _lineSlot;
|
|
slot.shellCoverFallbackTimer?.cancel();
|
|
slot.availability = _LineAvailability.unavailable;
|
|
slot.loadError = description;
|
|
slot.showShellCover = false;
|
|
if (mounted) {
|
|
setState(() {});
|
|
unawaited(_replaceUnavailableLine());
|
|
}
|
|
}
|
|
|
|
Future<void> _replaceUnavailableLine() async {
|
|
if (_isReplacingUnavailableLine) {
|
|
return;
|
|
}
|
|
|
|
_isReplacingUnavailableLine = true;
|
|
try {
|
|
if (mounted) {
|
|
setState(() {
|
|
_isPreparingInitialLine = true;
|
|
_currentSlot.loadError = null;
|
|
_currentSlot.progress = 0;
|
|
_currentSlot.showShellCover = true;
|
|
});
|
|
}
|
|
await _prepareAndLoadH5Line(forceNew: true);
|
|
} finally {
|
|
_isReplacingUnavailableLine = false;
|
|
}
|
|
}
|
|
|
|
Future<void> _loadCurrentLine({bool forceReload = false}) async {
|
|
final slot = _lineSlot;
|
|
if (slot.hasLoadedInitialRequest && !forceReload) {
|
|
return;
|
|
}
|
|
|
|
slot.hasLoadedInitialRequest = true;
|
|
final shouldShowCover = !slot.hasPresentedFirstScreen;
|
|
if (mounted) {
|
|
slot.shellCoverFallbackTimer?.cancel();
|
|
setState(() {
|
|
slot.loadError = null;
|
|
slot.progress = 0;
|
|
slot.showShellCover = shouldShowCover;
|
|
});
|
|
}
|
|
|
|
await slot.controller.loadRequest(Uri.parse(slot.line.url));
|
|
await _syncKeyboardState();
|
|
}
|
|
|
|
Future<void> _reloadCurrentLine({bool forceRefresh = false}) async {
|
|
final slot = _currentSlot;
|
|
if (slot.availability == _LineAvailability.unavailable ||
|
|
slot.loadError != null) {
|
|
await _replaceUnavailableLine();
|
|
return;
|
|
}
|
|
|
|
final shouldShowCover = !slot.hasPresentedFirstScreen;
|
|
slot.shellCoverFallbackTimer?.cancel();
|
|
if (mounted) {
|
|
setState(() {
|
|
slot.loadError = null;
|
|
slot.progress = 0;
|
|
slot.showShellCover = shouldShowCover;
|
|
});
|
|
}
|
|
|
|
if (forceRefresh) {
|
|
await slot.controller.loadRequest(
|
|
await _currentReloadUri(cacheBust: true),
|
|
);
|
|
} else if (slot.hasLoadedInitialRequest) {
|
|
await slot.controller.reload();
|
|
} else {
|
|
await _loadCurrentLine();
|
|
}
|
|
}
|
|
|
|
Widget _buildWebViewWidget() {
|
|
PlatformWebViewWidgetCreationParams params =
|
|
PlatformWebViewWidgetCreationParams(
|
|
controller: _lineSlot.controller.platform,
|
|
gestureRecognizers: _webViewGestureRecognizers,
|
|
);
|
|
|
|
if (_lineSlot.controller.platform is AndroidWebViewController) {
|
|
params = AndroidWebViewWidgetCreationParams
|
|
.fromPlatformWebViewWidgetCreationParams(
|
|
params,
|
|
displayWithHybridComposition: true,
|
|
);
|
|
}
|
|
|
|
return RepaintBoundary(
|
|
child: WebViewWidget.fromPlatformCreationParams(
|
|
key: ValueKey<String>(_lineSlot.line.url),
|
|
params: params,
|
|
),
|
|
);
|
|
}
|
|
|
|
Future<NavigationDecision> _handleNavigationRequest(
|
|
NavigationRequest request,
|
|
) async {
|
|
final uri = Uri.tryParse(request.url);
|
|
if (uri == null) {
|
|
return NavigationDecision.prevent;
|
|
}
|
|
|
|
const inWebViewSchemes = {'about', 'data'};
|
|
if (inWebViewSchemes.contains(uri.scheme) || _isCurrentH5Origin(uri)) {
|
|
return NavigationDecision.navigate;
|
|
}
|
|
|
|
if (uri.scheme == 'http' || uri.scheme == 'https') {
|
|
await _openExternalUri(uri);
|
|
return NavigationDecision.prevent;
|
|
}
|
|
|
|
await _openExternalUri(uri);
|
|
return NavigationDecision.prevent;
|
|
}
|
|
|
|
bool _isCurrentH5Origin(Uri uri) {
|
|
final currentUri = Uri.tryParse(_currentSlot.line.url);
|
|
if (currentUri == null) {
|
|
return false;
|
|
}
|
|
|
|
return uri.scheme == currentUri.scheme &&
|
|
uri.host == currentUri.host &&
|
|
uri.port == currentUri.port;
|
|
}
|
|
|
|
Future<void> _openExternalUrl(String? rawUrl) async {
|
|
final url = rawUrl?.trim();
|
|
if (url == null || url.isEmpty) {
|
|
return;
|
|
}
|
|
|
|
final uri = Uri.tryParse(url);
|
|
if (uri == null || !uri.hasScheme) {
|
|
return;
|
|
}
|
|
|
|
await _openExternalUri(uri);
|
|
}
|
|
|
|
Future<void> _openExternalUri(Uri uri) async {
|
|
try {
|
|
await launchUrl(uri, mode: LaunchMode.externalApplication);
|
|
} catch (_) {
|
|
// Ignore unsupported custom schemes so the WebView does not navigate to
|
|
// an error page.
|
|
}
|
|
}
|
|
|
|
Future<void> _handleBackNavigation() async {
|
|
final controller = _currentSlot.controller;
|
|
if (await controller.canGoBack()) {
|
|
await controller.goBack();
|
|
} else {
|
|
await SystemNavigator.pop();
|
|
}
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final currentSlot = _currentSlot;
|
|
final topInset = MediaQuery.paddingOf(context).top;
|
|
final bottomInset = MediaQuery.viewInsetsOf(context).bottom;
|
|
_scheduleKeyboardStateSync(bottomInset);
|
|
final shouldPaintShellFallback =
|
|
(_isPreparingInitialLine || currentSlot.isAwaitingFirstScreen) &&
|
|
currentSlot.loadError == null;
|
|
final shouldPaintShellCover =
|
|
currentSlot.showShellCover && !currentSlot.hasPresentedFirstScreen;
|
|
final shouldPaintWebView = currentSlot.hasLoadedInitialRequest ||
|
|
currentSlot.hasPresentedFirstScreen;
|
|
final shellBackgroundColor =
|
|
shouldPaintShellFallback ? _shellBackground : Colors.white;
|
|
|
|
return PopScope(
|
|
canPop: false,
|
|
onPopInvokedWithResult: (didPop, _) {
|
|
if (!didPop) {
|
|
unawaited(_handleBackNavigation());
|
|
}
|
|
},
|
|
child: Scaffold(
|
|
backgroundColor: shellBackgroundColor,
|
|
body: Stack(
|
|
children: [
|
|
SafeArea(
|
|
bottom: false,
|
|
child: Stack(
|
|
children: [
|
|
if (shouldPaintShellFallback && !shouldPaintShellCover)
|
|
Positioned.fill(
|
|
child: _ShellFallback(progress: currentSlot.progress),
|
|
),
|
|
if (shouldPaintWebView)
|
|
Positioned.fill(child: _buildWebViewWidget()),
|
|
if (shouldPaintShellCover)
|
|
Positioned.fill(
|
|
child: IgnorePointer(
|
|
child: _ShellFallback(progress: currentSlot.progress),
|
|
),
|
|
),
|
|
if (!currentSlot.hasPresentedFirstScreen &&
|
|
!currentSlot.showShellCover &&
|
|
currentSlot.progress < 100)
|
|
LinearProgressIndicator(
|
|
value: currentSlot.progress == 0
|
|
? null
|
|
: currentSlot.progress / 100,
|
|
minHeight: 2,
|
|
),
|
|
if (currentSlot.loadError != null)
|
|
_ErrorPanel(
|
|
message: currentSlot.loadError!,
|
|
onRetry: () => unawaited(_reloadCurrentLine()),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
Positioned(
|
|
top: 0,
|
|
left: 0,
|
|
right: 0,
|
|
height: topInset,
|
|
child: ColoredBox(
|
|
color: shellBackgroundColor,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _NativeMediaPermissionResult {
|
|
const _NativeMediaPermissionResult({
|
|
required this.granted,
|
|
this.permanentlyDenied = false,
|
|
this.restricted = false,
|
|
});
|
|
|
|
final bool granted;
|
|
final bool permanentlyDenied;
|
|
final bool restricted;
|
|
}
|
|
|
|
class _H5LineWebViewSlot {
|
|
_H5LineWebViewSlot({required this.line, required this.controller});
|
|
|
|
final H5Line line;
|
|
final WebViewController controller;
|
|
|
|
int progress = 0;
|
|
String? loadError;
|
|
_LineAvailability availability = _LineAvailability.checking;
|
|
bool showShellCover = true;
|
|
bool hasPresentedFirstScreen = false;
|
|
bool hasLoadedInitialRequest = false;
|
|
Timer? shellCoverFallbackTimer;
|
|
|
|
bool get isAwaitingFirstScreen => !hasPresentedFirstScreen;
|
|
|
|
void dispose() {
|
|
shellCoverFallbackTimer?.cancel();
|
|
}
|
|
}
|
|
|
|
class _ErrorPanel extends StatelessWidget {
|
|
const _ErrorPanel({required this.message, required this.onRetry});
|
|
|
|
final String message;
|
|
final VoidCallback onRetry;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return ColoredBox(
|
|
color: Colors.white,
|
|
child: Center(
|
|
child: Padding(
|
|
padding: const EdgeInsets.all(24),
|
|
child: Column(
|
|
mainAxisSize: MainAxisSize.min,
|
|
children: [
|
|
const Icon(Icons.wifi_off_rounded, size: 44),
|
|
const SizedBox(height: 16),
|
|
const Text(
|
|
'页面加载失败',
|
|
style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600),
|
|
),
|
|
const SizedBox(height: 8),
|
|
Text(
|
|
message,
|
|
textAlign: TextAlign.center,
|
|
style: Theme.of(context).textTheme.bodyMedium,
|
|
),
|
|
const SizedBox(height: 20),
|
|
FilledButton(onPressed: onRetry, child: const Text('重新加载')),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class _ShellFallback extends StatelessWidget {
|
|
const _ShellFallback({required this.progress});
|
|
|
|
final int progress;
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final clampedProgress = progress.clamp(0, 100).toDouble();
|
|
final progressValue =
|
|
progress <= 0 ? 0.28 : 0.22 + clampedProgress * 0.0072;
|
|
|
|
return CustomPaint(
|
|
painter: const _H5LoadingBackgroundPainter(),
|
|
child: LayoutBuilder(
|
|
builder: (context, constraints) {
|
|
final markSize = (constraints.maxWidth * 0.34).clamp(116.0, 148.0);
|
|
final contentTop = constraints.maxHeight * 0.28;
|
|
final progressWidth = (constraints.maxWidth * 0.32).clamp(
|
|
116.0,
|
|
152.0,
|
|
);
|
|
|
|
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: _shellInk,
|
|
fontSize: 24,
|
|
height: 1.2,
|
|
fontWeight: FontWeight.w700,
|
|
letterSpacing: 0,
|
|
),
|
|
),
|
|
const SizedBox(height: 8),
|
|
const Text(
|
|
'正在连接会话',
|
|
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).toDouble(),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
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(0xFFD9EAF8)),
|
|
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 DecoratedBox(
|
|
decoration: BoxDecoration(
|
|
gradient: LinearGradient(
|
|
colors: [
|
|
Color(0xFF48D4C8),
|
|
_shellAccent,
|
|
_shellAccentDeep,
|
|
],
|
|
),
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
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(0xFFEAF7FF), Color(0xFFF8FCFF), Colors.white],
|
|
stops: [0, 0.52, 1],
|
|
).createShader(pageRect);
|
|
canvas.drawRect(pageRect, pagePaint);
|
|
|
|
final topWave = Path()
|
|
..moveTo(0, 0)
|
|
..lineTo(1080, 0)
|
|
..lineTo(1080, 390)
|
|
..cubicTo(906, 332, 756, 330, 630, 386)
|
|
..cubicTo(478, 454, 332, 448, 214, 374)
|
|
..cubicTo(124, 318, 54, 310, 0, 350)
|
|
..close();
|
|
canvas.drawPath(
|
|
topWave,
|
|
Paint()..color = const Color(0xFFDDF2FF).withValues(alpha: 0.72),
|
|
);
|
|
|
|
final bottomWave = Path()
|
|
..moveTo(1080, 1510)
|
|
..lineTo(1080, 2400)
|
|
..lineTo(0, 2400)
|
|
..lineTo(0, 1878)
|
|
..cubicTo(142, 1802, 294, 1786, 456, 1832)
|
|
..cubicTo(632, 1882, 786, 1832, 918, 1682)
|
|
..cubicTo(978, 1614, 1032, 1572, 1080, 1510)
|
|
..close();
|
|
canvas.drawPath(
|
|
bottomWave,
|
|
Paint()..color = const Color(0xFFEFF9FF).withValues(alpha: 0.9),
|
|
);
|
|
|
|
final softPanelPaint = Paint()
|
|
..color = Colors.white.withValues(alpha: 0.42)
|
|
..maskFilter = const MaskFilter.blur(BlurStyle.normal, 18);
|
|
canvas.drawRRect(
|
|
RRect.fromRectAndRadius(
|
|
const Rect.fromLTWH(126, 688, 828, 136),
|
|
const Radius.circular(42),
|
|
),
|
|
softPanelPaint,
|
|
);
|
|
canvas.drawRRect(
|
|
RRect.fromRectAndRadius(
|
|
const Rect.fromLTWH(180, 1528, 720, 128),
|
|
const Radius.circular(40),
|
|
),
|
|
softPanelPaint,
|
|
);
|
|
|
|
final linePaint = Paint()
|
|
..color = const Color(0xFFB6D7F2).withValues(alpha: 0.32)
|
|
..strokeWidth = 2;
|
|
for (var y = 470.0; y < 840; y += 72) {
|
|
canvas.drawLine(Offset(130, y), Offset(950, y - 46), linePaint);
|
|
}
|
|
|
|
void drawMessageCard({
|
|
required Rect rect,
|
|
required Color color,
|
|
required double alpha,
|
|
required bool alignRight,
|
|
}) {
|
|
final cardPaint = Paint()..color = color.withValues(alpha: alpha);
|
|
canvas.drawRRect(
|
|
RRect.fromRectAndRadius(rect, const Radius.circular(44)),
|
|
cardPaint,
|
|
);
|
|
|
|
final firstLineWidth = rect.width * (alignRight ? 0.48 : 0.56);
|
|
final secondLineWidth = rect.width * 0.34;
|
|
final x = alignRight ? rect.right - firstLineWidth - 44 : rect.left + 44;
|
|
final lineY = rect.top + rect.height * 0.38;
|
|
final messageLinePaint = Paint()
|
|
..color = const Color(0xFF9FC2DE).withValues(alpha: 0.38)
|
|
..strokeCap = StrokeCap.round
|
|
..strokeWidth = 12;
|
|
canvas.drawLine(
|
|
Offset(x, lineY),
|
|
Offset(x + firstLineWidth, lineY),
|
|
messageLinePaint,
|
|
);
|
|
canvas.drawLine(
|
|
Offset(x, lineY + 34),
|
|
Offset(x + secondLineWidth, lineY + 34),
|
|
messageLinePaint,
|
|
);
|
|
}
|
|
|
|
drawMessageCard(
|
|
rect: const Rect.fromLTWH(96, 1008, 438, 118),
|
|
color: Colors.white,
|
|
alpha: 0.52,
|
|
alignRight: false,
|
|
);
|
|
drawMessageCard(
|
|
rect: const Rect.fromLTWH(548, 1160, 436, 118),
|
|
color: const Color(0xFFE0F7F4),
|
|
alpha: 0.56,
|
|
alignRight: true,
|
|
);
|
|
|
|
canvas.restore();
|
|
}
|
|
|
|
@override
|
|
bool shouldRepaint(covariant _H5LoadingBackgroundPainter oldDelegate) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
class _BubbleCheckPainter extends CustomPainter {
|
|
const _BubbleCheckPainter();
|
|
|
|
static const _viewBox = Size(420, 360);
|
|
|
|
@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 shadowPaint = Paint()
|
|
..color = const Color(0xFF026CD5).withValues(alpha: 0.18)
|
|
..maskFilter = const MaskFilter.blur(BlurStyle.normal, 32);
|
|
final backShadowPaint = Paint()
|
|
..color = const Color(0xFF0AAE9D).withValues(alpha: 0.12)
|
|
..maskFilter = const MaskFilter.blur(BlurStyle.normal, 24);
|
|
|
|
final backBubble = RRect.fromRectAndRadius(
|
|
const Rect.fromLTWH(34, 42, 176, 124),
|
|
const Radius.circular(54),
|
|
);
|
|
canvas.save();
|
|
canvas.translate(0, 18);
|
|
canvas.drawRRect(backBubble, backShadowPaint);
|
|
canvas.restore();
|
|
|
|
final backBubblePaint = Paint()
|
|
..shader = const LinearGradient(
|
|
begin: Alignment.topLeft,
|
|
end: Alignment.bottomRight,
|
|
colors: [Color(0xFFE8FBF8), Color(0xFFAEECE4)],
|
|
).createShader(backBubble.outerRect);
|
|
canvas.drawRRect(backBubble, backBubblePaint);
|
|
|
|
final frontRect = const Rect.fromLTWH(78, 86, 284, 190);
|
|
final frontBubble = RRect.fromRectAndRadius(
|
|
frontRect,
|
|
const Radius.circular(72),
|
|
);
|
|
final frontTail = Path()
|
|
..moveTo(282, 250)
|
|
..cubicTo(316, 284, 352, 300, 388, 310)
|
|
..cubicTo(360, 284, 348, 252, 354, 222)
|
|
..close();
|
|
|
|
canvas.save();
|
|
canvas.translate(0, 22);
|
|
canvas.drawRRect(frontBubble, shadowPaint);
|
|
canvas.drawPath(frontTail, shadowPaint);
|
|
canvas.restore();
|
|
|
|
final bubblePaint = Paint()
|
|
..shader = const LinearGradient(
|
|
begin: Alignment.topLeft,
|
|
end: Alignment.bottomRight,
|
|
colors: [Color(0xFFA8DDFF), _shellAccent, _shellAccentDeep],
|
|
stops: [0, 0.48, 1],
|
|
).createShader(frontRect);
|
|
canvas.drawPath(frontTail, bubblePaint);
|
|
canvas.drawRRect(frontBubble, 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(frontRect);
|
|
canvas.drawRRect(frontBubble, highlightPaint);
|
|
|
|
final glyphPaint = Paint()
|
|
..color = Colors.white.withValues(alpha: 0.94)
|
|
..style = PaintingStyle.stroke
|
|
..strokeWidth = 22
|
|
..strokeCap = StrokeCap.round
|
|
..strokeJoin = StrokeJoin.round;
|
|
canvas.drawLine(const Offset(154, 154), const Offset(288, 154), glyphPaint);
|
|
canvas.drawLine(const Offset(154, 204), const Offset(238, 204), glyphPaint);
|
|
canvas.drawCircle(
|
|
const Offset(306, 204),
|
|
12,
|
|
Paint()..color = Colors.white.withValues(alpha: 0.94),
|
|
);
|
|
|
|
canvas.restore();
|
|
}
|
|
|
|
@override
|
|
bool shouldRepaint(covariant _BubbleCheckPainter oldDelegate) {
|
|
return false;
|
|
}
|
|
}
|