415 lines
12 KiB
Dart
415 lines
12 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:media_kit/media_kit.dart';
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import '../../../data/models/file_model.dart';
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import '../../../services/custom_line_service.dart';
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import '../../../services/file_service.dart';
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/// 音频预览页面
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class AudioPreviewPage extends StatefulWidget {
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final FileModel file;
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final String? entityId;
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const AudioPreviewPage({super.key, required this.file, this.entityId});
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@override
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State<AudioPreviewPage> createState() => _AudioPreviewPageState();
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}
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class _AudioPreviewPageState extends State<AudioPreviewPage> {
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late final Player player;
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bool _isLoading = true;
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String? _errorMessage;
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@override
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void initState() {
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super.initState();
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player = Player();
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_loadAudioUrl();
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}
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Future<void> _loadAudioUrl() async {
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try {
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final response = await FileService().getDownloadUrls(
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uris: [widget.file.relativePath],
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download: false,
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entity: widget.entityId,
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);
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final urls = response['urls'] as List<dynamic>? ?? [];
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if (urls.isNotEmpty) {
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final urlData = urls[0] as Map<String, dynamic>;
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final url = urlData['url'] as String;
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if (mounted) {
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setState(() {
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_isLoading = false;
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});
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await CustomLineService.instance.configureMediaPlayerProxy(
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player,
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url,
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);
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await player.open(Media(url), play: true);
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}
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} else {
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if (mounted) {
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setState(() {
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_errorMessage = '无法获取音频URL';
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_isLoading = false;
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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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setState(() {
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_errorMessage = e.toString();
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_isLoading = false;
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});
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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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player.dispose();
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super.dispose();
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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: const Color(0xFF1A1A2E),
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appBar: AppBar(
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title: Text(
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widget.file.name,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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backgroundColor: const Color(0xFF1A1A2E),
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elevation: 0,
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iconTheme: const IconThemeData(color: Colors.white),
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titleTextStyle: const TextStyle(
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color: Colors.white,
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fontSize: 18,
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fontWeight: FontWeight.w500,
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),
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),
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body: _buildBody(),
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);
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}
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Widget _buildBody() {
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if (_isLoading) {
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return const Center(
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child: CircularProgressIndicator(color: Colors.white),
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);
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}
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if (_errorMessage != null) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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const Icon(Icons.error_outline, size: 64, color: Colors.white54),
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const SizedBox(height: 16),
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Text(
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_errorMessage!,
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textAlign: TextAlign.center,
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style: const TextStyle(color: Colors.white54),
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),
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const SizedBox(height: 16),
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FilledButton(
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onPressed: () {
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setState(() {
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_isLoading = true;
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_errorMessage = null;
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});
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_loadAudioUrl();
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},
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child: const Text('重试'),
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),
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],
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),
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);
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}
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return AudioPlayerWidget(player: player, fileName: widget.file.name);
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}
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}
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/// 音频播放器组件
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class AudioPlayerWidget extends StatefulWidget {
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final Player player;
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final String fileName;
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const AudioPlayerWidget({
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super.key,
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required this.player,
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required this.fileName,
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});
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@override
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State<AudioPlayerWidget> createState() => _AudioPlayerWidgetState();
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}
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class _AudioPlayerWidgetState extends State<AudioPlayerWidget> {
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@override
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Widget build(BuildContext context) {
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return Container(
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decoration: BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [const Color(0xFF1A1A2E), const Color(0xFF16213E)],
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),
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),
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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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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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// 专辑封面
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Container(
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width: 280,
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height: 280,
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(20),
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gradient: const LinearGradient(
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begin: Alignment.topLeft,
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end: Alignment.bottomRight,
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colors: [Color(0xFFE94560), Color(0xFF533483)],
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),
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boxShadow: [
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BoxShadow(
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color: const Color(0xFFE94560).withValues(alpha: 0.3),
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blurRadius: 30,
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offset: const Offset(0, 10),
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),
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],
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),
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child: const Icon(
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Icons.music_note,
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size: 120,
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color: Colors.white,
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),
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),
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const SizedBox(height: 48),
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// 文件名
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16),
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child: Text(
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widget.fileName,
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style: const TextStyle(
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fontSize: 22,
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fontWeight: FontWeight.w600,
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color: Colors.white,
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),
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textAlign: TextAlign.center,
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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),
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),
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const SizedBox(height: 8),
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// 文件类型
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Text(
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'音频文件',
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style: TextStyle(
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fontSize: 14,
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color: Colors.white.withValues(alpha: 0.6),
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),
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),
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const SizedBox(height: 48),
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// 进度条
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_buildProgressBar(),
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const SizedBox(height: 32),
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// 播放控制
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_buildPlaybackControls(),
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],
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),
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),
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);
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}
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Widget _buildProgressBar() {
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return Column(
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children: [
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StreamBuilder(
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stream: widget.player.stream.position,
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builder: (context, snapshot) {
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final position = snapshot.data ?? Duration.zero;
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return StreamBuilder(
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stream: widget.player.stream.duration,
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builder: (context, snapshot) {
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final duration = snapshot.data ?? Duration.zero;
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return SliderTheme(
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data: SliderThemeData(
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trackHeight: 4,
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thumbShape: const RoundSliderThumbShape(
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enabledThumbRadius: 8,
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),
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overlayShape: const RoundSliderOverlayShape(
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overlayRadius: 16,
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),
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activeTrackColor: const Color(0xFFE94560),
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inactiveTrackColor: Colors.white.withValues(alpha: 0.1),
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thumbColor: const Color(0xFFE94560),
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overlayColor: const Color(
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0xFFE94560,
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).withValues(alpha: 0.3),
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),
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child: Slider(
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value: position.inMilliseconds.toDouble(),
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max: duration.inMilliseconds > 0
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? duration.inMilliseconds.toDouble()
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: 1.0,
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onChanged: (value) {
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widget.player.seek(Duration(milliseconds: value.toInt()));
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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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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16),
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child: StreamBuilder(
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stream: widget.player.stream.position,
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builder: (context, snapshot) {
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final position = snapshot.data ?? Duration.zero;
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return StreamBuilder(
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stream: widget.player.stream.duration,
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builder: (context, snapshot) {
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final duration = snapshot.data ?? Duration.zero;
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return Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(
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_formatDuration(position),
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style: TextStyle(
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fontSize: 13,
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color: Colors.white.withValues(alpha: 0.6),
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),
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),
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Text(
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_formatDuration(duration),
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style: TextStyle(
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fontSize: 13,
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color: Colors.white.withValues(alpha: 0.6),
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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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);
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}
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Widget _buildPlaybackControls() {
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final screenWidth = MediaQuery.of(context).size.width;
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final isSmallScreen = screenWidth < 400;
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return Padding(
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padding: EdgeInsets.symmetric(horizontal: isSmallScreen ? 8 : 16),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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// 上一首（暂无功能）
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Flexible(
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child: IconButton(
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icon: const Icon(Icons.skip_previous),
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iconSize: isSmallScreen ? 28 : 36,
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color: Colors.white,
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onPressed: () {},
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),
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),
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// 快退10秒
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Flexible(
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child: IconButton(
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icon: const Icon(Icons.replay_10),
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iconSize: isSmallScreen ? 32 : 42,
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color: Colors.white,
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onPressed: () {
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final position = widget.player.state.position;
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widget.player.seek(position - const Duration(seconds: 10));
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},
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),
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),
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// 播放/暂停
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StreamBuilder(
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stream: widget.player.stream.playing,
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builder: (context, snapshot) {
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final playing = snapshot.data ?? false;
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return Container(
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width: isSmallScreen ? 56 : 72,
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height: isSmallScreen ? 56 : 72,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: const Color(0xFFE94560),
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boxShadow: [
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BoxShadow(
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color: const Color(0xFFE94560).withValues(alpha: 0.4),
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blurRadius: 20,
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offset: const Offset(0, 8),
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),
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],
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),
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child: IconButton(
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icon: Icon(playing ? Icons.pause : Icons.play_arrow),
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iconSize: isSmallScreen ? 28 : 36,
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color: Colors.white,
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onPressed: () {
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if (playing) {
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widget.player.pause();
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} else {
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widget.player.play();
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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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// 快进10秒
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Flexible(
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child: IconButton(
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icon: const Icon(Icons.forward_10),
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iconSize: isSmallScreen ? 32 : 42,
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color: Colors.white,
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onPressed: () {
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final position = widget.player.state.position;
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widget.player.seek(position + const Duration(seconds: 10));
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},
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),
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),
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// 下一首（暂无功能）
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Flexible(
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child: IconButton(
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icon: const Icon(Icons.skip_next),
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iconSize: isSmallScreen ? 28 : 36,
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color: Colors.white,
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onPressed: () {},
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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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String _formatDuration(Duration duration) {
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final minutes = duration.inMinutes.remainder(60);
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final seconds = duration.inSeconds.remainder(60);
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return '${minutes.toString().padLeft(2, '0')}:${seconds.toString().padLeft(2, '0')}';
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}
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}
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