113 lines
3.3 KiB
Dart
113 lines
3.3 KiB
Dart
// lib/services/playback_service.dart
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import 'package:media_kit/media_kit.dart';
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import 'package:flutter/foundation.dart';
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class PlaybackService {
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static final PlaybackService _instance = PlaybackService._internal();
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factory PlaybackService() => _instance;
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PlaybackService._internal() {
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// ⭐ 给单例本身打上 ID
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_serviceId = DateTime.now().microsecondsSinceEpoch.toString();
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debugPrint('🎯 [PlaybackService] 单例创建, serviceId=$_serviceId');
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}
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Player? _player;
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bool _initialized = false;
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late final String _serviceId; // ⭐ 服务实例 ID
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// ---------- Getter ----------
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Player get player {
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debugPrint(
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'🎯 [PlaybackService] get player called, serviceId=$_serviceId, initialized=$_initialized, player=${_player?.hashCode}');
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if (!_initialized) init();
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return _player!;
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}
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bool get isInitialized => _initialized;
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// ---------- 初始化 ----------
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void init() {
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if (_initialized) {
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debugPrint(
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'⚠️ [PlaybackService] init() 被重复调用, 跳过, serviceId=$_serviceId, player=${_player?.hashCode}');
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return;
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}
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_player = Player();
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_initialized = true;
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debugPrint(
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'✅ [PlaybackService] Player 已创建, serviceId=$_serviceId, player=${_player.hashCode}');
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}
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// ---------- 播放 ----------
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Future<void> play(String url, {Map<String, String>? headers}) async {
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debugPrint(
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'▶️ [PlaybackService] play() called, serviceId=$_serviceId, player=${_player?.hashCode}');
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if (!_initialized) init();
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final media = (headers != null && headers.isNotEmpty)
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? Media(url, httpHeaders: headers)
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: Media(url);
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await _player!.open(media);
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await _player!.play();
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}
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// ---------- 控制 ----------
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Future<void> pause() async {
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debugPrint(
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'⏸️ [PlaybackService] pause() called, serviceId=$_serviceId, player=${_player?.hashCode}');
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if (_initialized && _player != null) {
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await _player!.pause();
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}
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}
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Future<void> resume() async {
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debugPrint(
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'▶️ [PlaybackService] resume() called, serviceId=$_serviceId, player=${_player?.hashCode}');
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if (_initialized && _player != null) {
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await _player!.play();
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}
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}
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Future<void> stop() async {
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debugPrint(
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'⏹️ [PlaybackService] stop() called, serviceId=$_serviceId, player=${_player?.hashCode}');
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if (_initialized && _player != null) {
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await _player!.stop();
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}
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}
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Future<void> seek(Duration position) async {
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debugPrint(
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'⏩ [PlaybackService] seek() called, serviceId=$_serviceId, player=${_player?.hashCode}');
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if (_initialized && _player != null) {
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await _player!.seek(position);
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}
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}
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void setVolume(double volume) {
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if (_initialized && _player != null) {
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_player!.setVolume(volume);
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}
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}
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// ---------- 释放 ----------
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void dispose() {
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debugPrint(
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'🗑️ [PlaybackService] dispose() called, serviceId=$_serviceId, player=${_player?.hashCode}');
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if (_initialized && _player != null) {
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_player!.dispose();
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_player = null;
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_initialized = false;
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}
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}
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// ---------- 重新初始化 ----------
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void reinitialize() {
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debugPrint(
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'🔄 [PlaybackService] reinitialize() called, serviceId=$_serviceId');
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dispose();
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init();
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}
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}
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