There is a problem with onRecorderStateChanged on ios

[zhangruiyu]

When I first record and play what I just recorded, and then I click on record again, onRecorderStateChanged has a 0 result all the way and cannot be recorded ''' import 'dart:io';

import 'package:chongmeng/constants/constants.dart'; import 'package:chongmeng/utils/date_utils.dart'; import 'package:flutter/material.dart'; import 'package:flutter_sound/flutter_sound_player.dart'; import 'package:flutter_sound/flutter_sound_recorder.dart'; import 'package:intl/intl.dart'; import 'package:path_provider/path_provider.dart';

class PlayPage extends StatefulWidget { @override _PlayPageState createState() => _PlayPageState(); }

class _PlayPageState extends State { FlutterSoundPlayer soundPlayer; FlutterSoundRecorder soundRecorder; var recorderSubscription; var result;

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

init() async { soundPlayer = await FlutterSoundPlayer().initialize(); soundRecorder = await FlutterSoundRecorder().initialize(); }

void _onStartRecord() async { showToast("_onStartRecord"); Directory tempDir = await getTemporaryDirectory(); File outputFile = File('${tempDir.path}/${DateUtils.currentTimeMillis()}.aac'); result = outputFile.path; String a = await soundRecorder.startRecorder(uri: outputFile.path);

recorderSubscription = soundRecorder.onRecorderStateChanged.listen((e) {
  DateTime date =
      new DateTime.fromMillisecondsSinceEpoch(e.currentPosition.toInt());
  String txt = DateFormat('mm:ss:SS', 'en_US').format(date);

// if (txt.contains("00:02")) { // _onStopRecord(); // } }); soundRecorder.onRecorderDbPeakChanged.listen((value) { print("got update -> $value"); }); }

Future _onStopRecord() async { showToast("_onStopRecord"); print("_onStopRecord "); String localUrl = await soundRecorder.stopRecorder(); if (recorderSubscription != null) { recorderSubscription.cancel(); recorderSubscription = null; } }

@override void dispose() { soundRecorder.release(); soundPlayer.release(); super.dispose(); }

_onStartPlay() async { showToast("_onStartPlay"); soundPlayer.startPlayer(this.result); }

@override Widget build(BuildContext context) { return Container( child: Column( children: [ IconButton( icon: Icon(Icons.record_voice_over), onPressed: () { _onStartRecord(); }, ), Padding( padding: const EdgeInsets.symmetric(vertical: 24), child: RaisedButton( child: Text("OK"), onPressed: () { _onStopRecord(); }, ), ), IconButton( icon: Icon(Icons.play_arrow), onPressed: () { _onStartPlay(); }, ), ], ), ); } }

'''

[Larpoux]

At first seeing your code seems correct. Of course, do not try to hit your 'Play' or 'Record' buttons during a recording.

[bsutton]

I'm working on integrating a recording widget into 5.0. As part that I expect to have a 'controller' which can be used to co-ordinating our recording widgets state with a players state. The controller will not allow a player which is 'attached' to a recorder (via the controller) to playback whilst recording is underway.

You can still have any number of other unattached players.

[zhangruiyu]

At first seeing your code seems correct. Of course, do not try to hit your 'Play' or 'Record' buttons during a recording.

I may not express it accurately. The current method call sequence is as follows 1._onStartRecord () 2._onStopRecord () 3._onStartPlay () 4._onStartRecord () 5._Onstoprecord(), onrecorderstatechanged will return 0 on the second recording and cannot play the second recorded audio

[zhangruiyu]

The ios simulator is fine, but it's available on your phone

[Larpoux]

1._onStartRecord () 2._onStopRecord () 3._onStartPlay () 4._onStartRecord ()

I suspect that your problem is caused by trying to record during a playback. Flutter Sound is supposed to handle that correctly, but this is something which has probably not been tested very intensively.

Please, keep this issue open. I will try to find time for looking to it.

[zhangruiyu]

1._onStartRecord () 2._onStopRecord () 3._onStartPlay () 4._onStartRecord ()

I suspect that your problem is caused by trying to record during a playback. Flutter Sound is supposed to handle that correctly, but this is something which has probably not been tested very intensively.

Please, keep this issue open. I will try to find time for looking to it.

But I didn't do that. If you follow the above steps, the second recording does not succeed, but it only exists on the mobile phone

[zhangruiyu]

can someone help me 0-0

[Larpoux]

Do you try to record a new file, or the file which is currently played back ?

[zhangruiyu]

Do you try to record a new file, or the file which is currently played back ?

It's a new file, and it works on android and ios emulators

[Gibsouille]

Hello there,

Same for me. Let us know if someone find a solution, a workaround, or even just the cause of this problem.

Thanks for what you're doin'!

[Larpoux]

Hi guys/girls,

We really need your logs if you want that we can do something for your problems.

[Gibsouille]

I cannot give you our logs but I've just found how to reproduce the problem with the plugin example project. First, switch "Track player" on. Then :

• Record
• Stop recording
• Play the audio you've just recorded
• Stop playing it
• Record again, and at this step the recordStatus currentPosition will stay at 0.0, and the recorded audio will not be playable.

[Larpoux]

👎 It seems that we have a "little" problem. 👎 I am going to fix that, now. Sorry for the inconvenient.

[Gibsouille]

It may not be a definitive solution, but I've found a workaround. Maybe it can help @zhangruiyu and other people in the same situation, and maybe it could help improving this plugin. The workaround is to release and then initialize again the recorder module before calling startRecorder(). In the case of @zhangruiyu, it would be :

void _onStartRecord() async {
  await soundRecorder.release();
  await soundRecorder.initialize();

  showToast("_onStartRecord");
  Directory tempDir = await getTemporaryDirectory();
  File outputFile = File('${tempDir.path}/${DateUtils.currentTimeMillis()}.aac');
  result = outputFile.path;
  String a = await soundRecorder.startRecorder(uri: outputFile.path);

  recorderSubscription = soundRecorder.onRecorderStateChanged.listen((e) {
    DateTime date = new DateTime.fromMillisecondsSinceEpoch(e.currentPosition.toInt());
    String txt = DateFormat('mm:ss:SS', 'en_US').format(date);
  });

  soundRecorder.onRecorderDbPeakChanged.listen((value) {
    print("got update -> $value");
  });
}

[Gibsouille]

👎 It seems that we have a "little" problem. 👎 I am going to fix that, now. Sorry for the inconvenient.

Thank you for your job!

[Larpoux]

Hi @Gibsouille ,

could you look to V 4.0.5 and see if better ?

[zhangruiyu]

V4.0.5 has fixed this problem, thumbs up

[Larpoux]

Hi @zhangruiyu , I am glad that the issue is fixed. I am really sorry for the delay : the problem occurred on real devices and not the simulator. It was not easy for us to debug that.

Good luck, using Flutter Sound. 😄