Flutter audioplayers 1.1.0播放位置异常重置问题求助

问题现象 #

使用audioplayers: 1.1.0播放网络音频时，播放功能正常，但player.onPositionChanged回调会在特定时长后突然返回0，导致进度滑块同步重启。日志显示位置值在正常递增后突然跳回0，再继续递增：

0:00:00.000000
0:00:00.002000
...
0:00:04.882000
0:00:00.236000  // 此处突然重置为0
0:00:00.438000
...

解决方案 #

方案1：升级audioplayers到最新稳定版 #

这个问题是audioplayers旧版本（1.1.0）的已知bug，后续版本已经修复了网络音频的位置计算逻辑。在pubspec.yaml中更新依赖：

dependencies:
  audioplayers: ^latest_version  # 替换为当前最新稳定版，如4.0.0+

方案2：临时过滤异常位置值（仅应急使用） #

如果暂时无法升级，可以在回调中手动过滤掉不合理的位置值，避免滑块重置。修改onPositionChanged的监听逻辑：

player.onPositionChanged.listen((newPosition) {
  // 过滤掉比当前记录位置小1秒以上的异常值（排除播放初始状态）
  if (newPosition.inSeconds >= position.inSeconds - 1 || position.inSeconds == 0) {
    setState(() {
      position = newPosition;
    });
  }
});

通过判断新位置与当前记录位置的差值，排除异常的重置值，避免UI错误更新。

修复后完整代码示例 #

以下是适配新版依赖（或加入过滤逻辑）后的完整代码：

import 'package:flutter/material.dart';
import 'package:audioplayers/audioplayers.dart';
import 'dart:async';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Audio Player'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final player = AudioPlayer();
  bool isPlaying = false;
  Duration duration = Duration.zero;
  Duration position = Duration.zero;

  String formatTime(int seconds) {
    return '${(Duration(seconds: seconds))}'.split('.')[0].padLeft(8, '0');
  }

  @override
  void initState() {
    super.initState();

    player.onPlayerStateChanged.listen((state) {
      setState(() {
        isPlaying = state == PlayerState.playing;
      });
    });

    player.onDurationChanged.listen((newDuration) {
      setState(() {
        duration = newDuration;
      });
    });

    // 加入异常位置过滤逻辑（未升级依赖时使用）
    player.onPositionChanged.listen((newPosition) {
      if (newPosition.inSeconds >= position.inSeconds - 1 || position.inSeconds == 0) {
        setState(() {
          position = newPosition;
        });
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Slider(
              min: 0,
              max: duration.inSeconds.toDouble(),
              value: position.inSeconds.toDouble(),
              onChanged: (value) {
                final seekPosition = Duration(seconds: value.toInt());
                player.seek(seekPosition);
                if (!isPlaying) {
                  player.resume();
                }
              },
            ),
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                CircleAvatar(
                  radius: 25,
                  child: IconButton(
                    icon: Icon(
                      isPlaying ? Icons.pause : Icons.play_arrow,
                    ),
                    onPressed: () {
                      if (isPlaying) {
                        player.pause();
                      } else {
                        player.play(UrlSource("https://www.kozco.com/tech/LRMonoPhase4.mp3"));
                      }
                    },
                  ),
                ),
                const SizedBox(width: 20),
                CircleAvatar(
                  radius: 25,
                  child: IconButton(
                    icon: const Icon(Icons.stop),
                    onPressed: () {
                      player.stop();
                      setState(() {
                        position = Duration.zero;
                        isPlaying = false;
                      });
                    },
                  ),
                ),
              ],
            ),
            Container(
              padding: const EdgeInsets.all(20),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text(formatTime(position.inSeconds)),
                  Text(formatTime((duration - position).inSeconds)),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}

注：升级到新版依赖后，player.play需使用UrlSource包装音频地址，旧版本可保持原写法。

内容的提问来源于stack exchange，提问作者Anandh Krishnan