还在尝试跑通播放状态

This commit is contained in:
2026-08-17 23:00:30 +08:00
parent a6056c7f1a
commit 725116760a
7 changed files with 480 additions and 114 deletions
+210
View File
@@ -0,0 +1,210 @@
// lib/pages/player_page.dart
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../services/audio_service.dart';
class PlayerPage extends StatefulWidget {
const PlayerPage({super.key});
@override
State<PlayerPage> createState() => _PlayerPageState();
}
class _PlayerPageState extends State<PlayerPage> {
// ✅ 使用 late,但不赋值,在 didChangeDependencies 中初始化
late AudioService _audioService;
@override
void didChangeDependencies() {
super.didChangeDependencies();
// ✅ 只在第一次或 service 变化时赋值
_audioService = context.watch<AudioService>();
}
String _formatDuration(Duration d) {
final minutes = d.inMinutes;
final seconds = d.inSeconds % 60;
return '${minutes.toString().padLeft(2, '0')}:${seconds.toString().padLeft(2, '0')}';
}
@override
Widget build(BuildContext context) {
// ✅ 使用 watch 实时获取状态
final service = context.watch<AudioService>();
final song = service.currentSong;
if (song == null) {
return Scaffold(
backgroundColor: const Color(0xFF0E1211),
body: const Center(
child: Text(
'没有正在播放的歌曲',
style: TextStyle(color: Colors.grey),
),
),
);
}
final position = service.position;
final duration = service.duration;
final isPlaying = service.isPlaying;
final progress = duration.inMilliseconds > 0
? position.inMilliseconds / duration.inMilliseconds
: 0.0;
return Scaffold(
backgroundColor: const Color(0xFF0E1211),
appBar: AppBar(
backgroundColor: Colors.transparent,
elevation: 0,
leading: IconButton(
icon: const Icon(Icons.arrow_back_ios_new, color: Colors.white),
onPressed: () => Navigator.pop(context),
),
actions: [
IconButton(
icon: const Icon(Icons.more_vert, color: Colors.white54),
onPressed: () {},
),
],
),
body: Padding(
padding: const EdgeInsets.symmetric(horizontal: 24),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
width: 280,
height: 280,
decoration: BoxDecoration(
shape: BoxShape.circle,
color: const Color(0xFF2A3332),
boxShadow: [
BoxShadow(
color: const Color(0xFF7C9A9E).withOpacity(0.15),
blurRadius: 60,
spreadRadius: 10,
),
],
),
child: const Icon(
Icons.music_note,
size: 80,
color: Colors.white24,
),
),
const SizedBox(height: 48),
Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Text(
song.title,
style: const TextStyle(
fontSize: 22,
fontWeight: FontWeight.w600,
color: Colors.white,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
Text(
song.artist,
style: TextStyle(
fontSize: 16,
color: Colors.grey[400],
),
textAlign: TextAlign.center,
),
],
),
const SizedBox(height: 40),
Column(
children: [
Slider(
value: progress.clamp(0.0, 1.0),
onChanged: (value) {
final newPosition = Duration(
milliseconds: (value * duration.inMilliseconds).round(),
);
service.seekTo(newPosition);
},
activeColor: const Color(0xFFB8D4D0),
inactiveColor: Colors.grey[800],
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
_formatDuration(position),
style: TextStyle(
fontSize: 12,
color: Colors.grey[500],
),
),
Text(
_formatDuration(duration),
style: TextStyle(
fontSize: 12,
color: Colors.grey[500],
),
),
],
),
],
),
const SizedBox(height: 32),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
IconButton(
onPressed: () {},
icon: const Icon(Icons.skip_previous, size: 32),
color: Colors.white60,
padding: const EdgeInsets.all(16),
),
const SizedBox(width: 24),
Container(
width: 64,
height: 64,
decoration: BoxDecoration(
color: const Color(0xFFB8D4D0),
shape: BoxShape.circle,
),
child: IconButton(
icon: Icon(
isPlaying ? Icons.pause : Icons.play_arrow,
color: Colors.black87,
size: 32,
),
padding: EdgeInsets.zero,
onPressed: () {
service.togglePlay();
},
),
),
const SizedBox(width: 24),
IconButton(
onPressed: () {},
icon: const Icon(Icons.skip_next, size: 32),
color: Colors.white60,
padding: const EdgeInsets.all(16),
),
],
),
const SizedBox(height: 32),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
IconButton(
onPressed: () {},
icon: const Icon(Icons.volume_up_outlined),
color: Colors.white38,
),
],
),
],
),
),
);
}
}