283 lines
8.4 KiB
Dart
283 lines
8.4 KiB
Dart
import 'dart:io' show Platform;
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import 'package:flutter/material.dart';
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import 'package:unity_levelplay_mediation/unity_levelplay_mediation.dart';
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import '../screens/main_screen.dart';
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import 'app_ads_managers.dart';
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/// Loading 页面 - 显示 logo 和 loading 动画，初始化广告
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class StartPage extends StatefulWidget {
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final Widget Function()? homePageBuilder;
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const StartPage({super.key, this.homePageBuilder});
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@override
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State<StartPage> createState() => _StartPageState();
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}
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class _StartPageState extends State<StartPage> with WidgetsBindingObserver {
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final InterstitialAdManager _adManager = InterstitialAdManager();
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bool _hasRequestedATT = false;
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bool _isInitializing = false;
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bool _isWaitingForATT = false;
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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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_initializeAds();
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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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super.dispose();
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}
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@override
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void didChangeAppLifecycleState(AppLifecycleState state) {
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super.didChangeAppLifecycleState(state);
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// 当应用从后台回到前台时，如果还没有请求过ATT，则请求
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if (state == AppLifecycleState.resumed &&
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!_hasRequestedATT &&
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Platform.isIOS &&
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!_isInitializing) {
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_requestATTWhenReady();
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}
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}
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Future<void> _initializeAds() async {
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_isInitializing = true;
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try {
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// iOS 平台：智能等待并请求 ATT 权限
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if (Platform.isIOS) {
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await _requestATTWhenReady();
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}
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// ATT 请求完成后，初始化广告管理器
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_adManager.initialize();
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// 等待初始化完成
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await _waitForInitialization();
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if (mounted) {
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// 并行加载三个广告，任意一个成功就立即跳转并显示
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_adManager.loadInitialSplashAd(
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onAdReady: (adType) {
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if (mounted) {
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// 延迟一小段时间后跳转并显示广告
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Future.delayed(const Duration(milliseconds: 500)).then((_) {
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if (mounted) {
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_navigateToHomeAndShowAd(adType);
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}
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});
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}
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},
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onAllAdsFailed: () {
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if (mounted) {
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// 所有广告都失败，延迟后进入主页
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Future.delayed(const Duration(seconds: 1)).then((_) {
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if (mounted) {
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_navigateToHome();
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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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} catch (e) {
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if (mounted) {
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// 即使初始化失败，也允许进入主页（广告可能稍后可用）
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await Future.delayed(const Duration(seconds: 2));
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if (mounted) {
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_navigateToHome();
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}
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}
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} finally {
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_isInitializing = false;
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}
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}
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/// 导航到主页并显示广告
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void _navigateToHomeAndShowAd(InterstitialAdType adType) {
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// 对于开屏场景，直接跳到 HomePage，并把已准备好的广告类型传过去
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Navigator.of(context).pushReplacement(
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MaterialPageRoute(
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builder: (context) => MainScreen(initialSplashAdType: adType),
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),
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);
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}
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/// 导航到主页
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void _navigateToHome() {
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if (widget.homePageBuilder != null) {
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Navigator.of(context).pushReplacement(
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MaterialPageRoute(builder: (context) => widget.homePageBuilder!()),
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);
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}
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}
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/// 智能等待并请求 ATT 权限，确保没有其他权限对话框在显示
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Future<void> _requestATTWhenReady() async {
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if (_hasRequestedATT || _isWaitingForATT) return;
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_isWaitingForATT = true;
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try {
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// 检查当前ATT状态
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final currentStatus =
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await ATTrackingManager.getTrackingAuthorizationStatus();
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debugPrint('LoadingPage: ATT Status: $currentStatus');
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if (currentStatus != ATTStatus.NotDetermined) {
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_hasRequestedATT = true;
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_isWaitingForATT = false;
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return;
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}
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// 初始延迟，让系统处理其他权限
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await Future.delayed(const Duration(milliseconds: 2000));
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// 智能等待：检测是否有其他系统对话框
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await _waitForSystemDialogsToClear();
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// 最终检查：确保状态仍然是 NotDetermined
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final finalStatus =
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await ATTrackingManager.getTrackingAuthorizationStatus();
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if (finalStatus == ATTStatus.NotDetermined && mounted) {
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_hasRequestedATT = true;
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debugPrint('LoadingPage: Requesting ATT permission...');
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final returnedStatus =
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await ATTrackingManager.requestTrackingAuthorization();
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debugPrint('LoadingPage: ATT Status returned: $returnedStatus');
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} else {
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_hasRequestedATT = true;
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}
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} catch (e) {
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debugPrint('LoadingPage: ATT request error: $e');
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_hasRequestedATT = true;
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} finally {
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_isWaitingForATT = false;
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}
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}
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/// 等待系统对话框清除
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/// 通过监听应用生命周期状态变化来检测是否有系统对话框
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Future<void> _waitForSystemDialogsToClear() async {
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const maxWaitTime = Duration(seconds: 30); // 最多等待30秒
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const checkInterval = Duration(milliseconds: 500);
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final startTime = DateTime.now();
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AppLifecycleState? lastState = WidgetsBinding.instance.lifecycleState;
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int stableCount = 0;
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const requiredStableCount = 4; // 需要连续2秒保持稳定状态
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while (DateTime.now().difference(startTime) < maxWaitTime) {
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if (!mounted) break;
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await Future.delayed(checkInterval);
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final currentState = WidgetsBinding.instance.lifecycleState;
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// 如果应用状态稳定在 resumed，说明没有系统对话框
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if (currentState == AppLifecycleState.resumed) {
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if (lastState == AppLifecycleState.resumed) {
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stableCount++;
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if (stableCount >= requiredStableCount) {
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debugPrint('LoadingPage: App state stable, ready for ATT request');
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break;
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}
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} else {
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stableCount = 1;
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}
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} else {
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// 如果状态不是 resumed，重置计数
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stableCount = 0;
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debugPrint('LoadingPage: App state: $currentState, waiting...');
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}
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lastState = currentState;
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}
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// 额外的安全延迟
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await Future.delayed(const Duration(milliseconds: 1000));
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}
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/// 等待广告管理器初始化完成
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Future<void> _waitForInitialization() async {
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// 轮询检查初始化状态，最多等待 15 秒
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const maxWaitTime = Duration(seconds: 15);
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const checkInterval = Duration(milliseconds: 200);
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final startTime = DateTime.now();
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while (DateTime.now().difference(startTime) < maxWaitTime) {
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if (_adManager.isInitialized) {
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return;
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}
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await Future.delayed(checkInterval);
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}
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// 如果超时仍未初始化，记录警告但继续
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if (!_adManager.isInitialized) {
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debugPrint('Warning: Ad initialization timeout, proceeding anyway');
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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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return Scaffold(
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backgroundColor: Color(0xff141420),
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body: Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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// Logo with animation
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TweenAnimationBuilder<double>(
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tween: Tween(begin: 0.0, end: 1.0),
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duration: const Duration(milliseconds: 800),
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curve: Curves.easeOut,
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builder: (context, value, child) {
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return Opacity(
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opacity: value,
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child: Transform.scale(scale: value, child: child),
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);
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},
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child: Image.asset(
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'assets/images/stonicons.png',
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width: 100,
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height: 100,
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fit: BoxFit.contain,
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),
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),
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const SizedBox(height: 5),
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// 状态文本
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const Text(
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'Resource Loading',
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style: TextStyle(
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fontSize: 16,
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color: Colors.white,
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fontWeight: FontWeight.w500,
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),
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),
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const SizedBox(height: 5),
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// Loading 动画
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const SizedBox(
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width: 30,
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height: 30,
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child: CircularProgressIndicator(
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strokeWidth: 4,
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valueColor: AlwaysStoppedAnimation<Color>(Color(0xFFFFFFFF)),
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),
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),
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const SizedBox(height: 30),
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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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