96 lines
2.8 KiB
Dart
96 lines
2.8 KiB
Dart
import 'package:flutter/foundation.dart';
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import 'package:flutter/material.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 '../../core/theme/app_colors.dart';
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import '../../shared/widgets/top_nav_bar.dart';
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/// 应用内 WebView 页面（支付、隐私政策、用户协议等）
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class PaymentWebViewScreen extends StatefulWidget {
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const PaymentWebViewScreen({
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super.key,
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required this.paymentUrl,
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this.title = 'Payment',
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});
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final String paymentUrl;
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final String title;
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@override
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State<PaymentWebViewScreen> createState() => _PaymentWebViewScreenState();
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}
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class _PaymentWebViewScreenState extends State<PaymentWebViewScreen> {
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late final WebViewController _controller;
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int _loadingProgress = 0;
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@override
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void initState() {
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super.initState();
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_controller = WebViewController()
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..setJavaScriptMode(JavaScriptMode.unrestricted)
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..setNavigationDelegate(
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NavigationDelegate(
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onProgress: (progress) {
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if (mounted) setState(() => _loadingProgress = progress);
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},
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onPageStarted: (_) {
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if (mounted) setState(() => _loadingProgress = 0);
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},
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onPageFinished: (_) {
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if (mounted) setState(() => _loadingProgress = 100);
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},
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onWebResourceError: (e) {},
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),
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)
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..loadRequest(Uri.parse(widget.paymentUrl));
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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: AppColors.surface,
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appBar: PreferredSize(
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preferredSize: const Size.fromHeight(59),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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TopNavBar(
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title: widget.title,
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showBackButton: true,
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onBack: () => Navigator.of(context).pop(),
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),
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if (_loadingProgress < 100)
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SizedBox(
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height: 3,
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child: LinearProgressIndicator(
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value: _loadingProgress / 100,
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backgroundColor: AppColors.surfaceAlt,
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valueColor:
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const AlwaysStoppedAnimation<Color>(AppColors.primary),
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),
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),
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],
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),
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),
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body: SafeArea(
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child: _buildWebView(),
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),
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);
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}
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Widget _buildWebView() {
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if (defaultTargetPlatform == TargetPlatform.android) {
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return WebViewWidget.fromPlatformCreationParams(
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params: AndroidWebViewWidgetCreationParams(
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controller: _controller.platform as AndroidWebViewController,
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displayWithHybridComposition: true,
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),
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);
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}
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return WebViewWidget(controller: _controller);
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}
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}
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