403 lines
13 KiB
Dart
403 lines
13 KiB
Dart
// lib/pages/player_page.dart
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../services/audio_service.dart';
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class PlayerPage extends StatefulWidget {
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final VoidCallback? onClose;
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final VoidCallback? onOpenPlaylist;
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const PlayerPage({
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super.key,
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this.onClose,
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this.onOpenPlaylist,
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});
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@override
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State<PlayerPage> createState() => _PlayerPageState();
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}
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class _PlayerPageState extends State<PlayerPage> {
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double? _dragProgress;
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String _formatDuration(Duration d) {
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if (d.inMilliseconds < 0) return '00:00';
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final minutes = d.inMinutes;
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final seconds = d.inSeconds % 60;
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return '${minutes.toString().padLeft(2, '0')}:${seconds.toString().padLeft(2, '0')}';
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}
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void _closePage() {
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if (widget.onClose != null) {
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widget.onClose!();
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} else {
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Navigator.pop(context);
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}
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}
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void _openPlaylist() {
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if (widget.onOpenPlaylist != null) {
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widget.onOpenPlaylist!();
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} else {
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Navigator.pushNamed(context, '/playlist');
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}
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}
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@override
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void initState() {
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super.initState();
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// ⭐ 页面加载时主动拉取状态（多次重试）
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_syncStateWithRetry();
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}
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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// ⭐ 依赖变化时（如从后台返回）重新同步
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (mounted) {
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context.read<AudioService>().syncPlayerStateNow();
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}
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});
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}
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void _syncStateWithRetry() {
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final service = context.read<AudioService>();
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// 立即同步
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service.syncPlayerStateNow();
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// 延迟重试
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const delays = [200, 500, 800, 1200];
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for (final delay in delays) {
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Future.delayed(Duration(milliseconds: delay), () {
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if (mounted) {
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service.syncPlayerStateNow();
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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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Widget build(BuildContext context) {
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final service = context.watch<AudioService>();
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final song = service.currentSong;
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if (song == null) {
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return Scaffold(
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backgroundColor: const Color(0xFF0E1211),
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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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const Text(
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'没有正在播放的歌曲',
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style: TextStyle(color: Colors.grey),
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),
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const SizedBox(height: 16),
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ElevatedButton(
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onPressed: _closePage,
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style: ElevatedButton.styleFrom(
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backgroundColor: const Color(0xFFB8D4D0),
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foregroundColor: Colors.black87,
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),
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child: const Text('返回'),
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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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final isPlaying = service.isPlaying;
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return Scaffold(
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backgroundColor: const Color(0xFF0E1211),
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appBar: AppBar(
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backgroundColor: Colors.transparent,
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elevation: 0,
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leading: IconButton(
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icon: const Icon(Icons.arrow_back_ios_new, color: Colors.white),
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onPressed: _closePage,
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),
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title: const Text(
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'正在播放',
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style: TextStyle(
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color: Colors.white,
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fontSize: 16,
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fontWeight: FontWeight.w400,
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),
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),
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centerTitle: true,
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actions: [
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IconButton(
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icon: const Icon(Icons.more_vert, color: Colors.white54),
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onPressed: () {},
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),
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],
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),
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body: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 24),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Container(
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width: 240,
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height: 240,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: const Color(0xFF2A3332),
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boxShadow: [
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BoxShadow(
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color: const Color(0xFF7C9A9E).withOpacity(0.15),
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blurRadius: 60,
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spreadRadius: 10,
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),
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],
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image: song.artwork != null
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? DecorationImage(
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image: MemoryImage(song.artwork!),
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fit: BoxFit.cover,
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)
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: null,
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),
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child: song.artwork == null
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? const Icon(Icons.music_note,
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size: 64, color: Colors.white24)
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: null,
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),
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const SizedBox(height: 48),
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Column(
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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Text(
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song.title,
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style: const TextStyle(
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fontSize: 20,
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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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const SizedBox(height: 8),
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Text(
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song.artist,
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style: TextStyle(
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fontSize: 15,
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color: Colors.grey[400],
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),
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textAlign: TextAlign.center,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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],
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),
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const SizedBox(height: 40),
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_buildProgressSection(service),
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const SizedBox(height: 32),
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_buildControlButtons(service, isPlaying),
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const SizedBox(height: 16),
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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 _buildProgressSection(AudioService service) {
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return ValueListenableBuilder(
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valueListenable: service.positionNotifier,
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builder: (context, position, _) {
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return ValueListenableBuilder(
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valueListenable: service.durationNotifier,
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builder: (context, duration, _) {
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// ⭐ 如果 duration 为 0，显示加载指示器
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if (duration.inMilliseconds == 0) {
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return const Padding(
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padding: EdgeInsets.symmetric(vertical: 8),
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child: LinearProgressIndicator(
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color: Color(0xFFB8D4D0),
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backgroundColor: Color(0xFF2A3332),
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),
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);
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}
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final progress = duration.inMilliseconds > 0
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? position.inMilliseconds / duration.inMilliseconds
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: 0.0;
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final bufferProgress = duration.inMilliseconds > 0
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? (service.bufferedNotifier.value.inMilliseconds /
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duration.inMilliseconds)
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.clamp(0.0, 1.0)
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: 0.0;
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final displayProgress = _dragProgress ?? progress;
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return Column(
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children: [
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SizedBox(
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height: 20,
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child: LayoutBuilder(
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builder: (context, constraints) {
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final width = constraints.maxWidth;
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final bufferWidth =
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width * bufferProgress.clamp(0.0, 1.0);
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final progressWidth =
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width * displayProgress.clamp(0.0, 1.0);
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return Stack(
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alignment: Alignment.centerLeft,
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children: [
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Container(
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width: width,
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height: 4,
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decoration: BoxDecoration(
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color: Colors.grey[800],
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borderRadius: BorderRadius.circular(2),
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),
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),
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Container(
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width: bufferWidth,
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height: 4,
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decoration: BoxDecoration(
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color: const Color(0xFF4A7A7A),
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borderRadius: BorderRadius.circular(2),
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),
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),
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Container(
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width: progressWidth,
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height: 4,
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decoration: BoxDecoration(
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color: const Color(0xFFB8D4D0),
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borderRadius: BorderRadius.circular(2),
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),
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),
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Positioned.fill(
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child: SliderTheme(
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data: SliderTheme.of(context).copyWith(
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trackHeight: 0,
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activeTrackColor: Colors.transparent,
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inactiveTrackColor: Colors.transparent,
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thumbColor: Colors.transparent,
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overlayColor: Colors.transparent,
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thumbShape: const RoundSliderThumbShape(
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enabledThumbRadius: 0,
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),
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),
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child: Slider(
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value: displayProgress.clamp(0.0, 1.0),
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min: 0.0,
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max: 1.0,
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onChanged: (value) {
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setState(() {
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_dragProgress = value;
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});
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},
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onChangeEnd: (value) {
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final newPosition = Duration(
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milliseconds:
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(value * duration.inMilliseconds)
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.round(),
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);
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service.seekTo(newPosition);
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setState(() {
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_dragProgress = null;
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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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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: 12,
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color: Colors.grey[500],
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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: 12,
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color: Colors.grey[500],
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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 _buildControlButtons(AudioService service, bool isPlaying) {
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return Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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IconButton(
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onPressed: service.togglePlayMode,
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icon: Icon(
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service.playModeIcon,
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color: const Color(0xFFB8D4D0),
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size: 22,
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),
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padding: const EdgeInsets.all(12),
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),
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const SizedBox(width: 4),
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IconButton(
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onPressed: service.hasQueue ? service.previous : null,
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icon: const Icon(Icons.skip_previous, size: 28),
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color: service.hasQueue ? Colors.white60 : Colors.grey[600],
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padding: const EdgeInsets.all(12),
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),
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const SizedBox(width: 20),
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Container(
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width: 56,
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height: 56,
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decoration: BoxDecoration(
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color: const Color(0xFFB8D4D0),
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shape: BoxShape.circle,
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),
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child: IconButton(
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icon: Icon(
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isPlaying ? Icons.pause : Icons.play_arrow,
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color: Colors.black87,
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size: 28,
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),
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padding: EdgeInsets.zero,
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onPressed: service.togglePlay,
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),
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),
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const SizedBox(width: 20),
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IconButton(
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onPressed: service.hasQueue ? service.next : null,
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icon: const Icon(Icons.skip_next, size: 28),
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color: service.hasQueue ? Colors.white60 : Colors.grey[600],
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padding: const EdgeInsets.all(12),
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),
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IconButton(
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onPressed: _openPlaylist,
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icon: const Icon(
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Icons.playlist_play_outlined,
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color: Color(0xFFB8D4D0),
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size: 26,
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),
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padding: const EdgeInsets.all(8),
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),
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const SizedBox(width: 4),
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],
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);
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}
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}
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