flutter_sound 2.1.1 
flutter_sound: ^2.1.1 copied to clipboard
tau.canardoux.xyzFlutter plugin that relates to sound like audio and recorder.
import 'dart:io';
import 'dart:typed_data' show Uint8List;
import 'package:flutter/material.dart';
import 'package:intl/intl.dart' show DateFormat;
import 'package:intl/date_symbol_data_local.dart';
import 'dart:async';
import 'package:flutter_sound/flutter_sound.dart';
import 'package:path_provider/path_provider.dart' show getTemporaryDirectory;
import 'package:flutter/services.dart' show rootBundle;
enum t_MEDIA
{
FILE,
BUFFER,
ASSET,
STREAM,
}
void main() {
runApp(new MyApp());
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => new _MyAppState();
}
class _MyAppState extends State<MyApp> {
bool _isRecording = false;
List <String> _path = [null, null, null, null, null, null, null];
StreamSubscription _recorderSubscription;
StreamSubscription _dbPeakSubscription;
StreamSubscription _playerSubscription;
FlutterSound flutterSound;
String _recorderTxt = '00:00:00';
String _playerTxt = '00:00:00';
double _dbLevel;
double sliderCurrentPosition = 0.0;
double maxDuration = 1.0;
t_MEDIA _media = t_MEDIA.FILE;
t_CODEC _codec = t_CODEC.CODEC_AAC;
@override
void initState() {
super.initState();
flutterSound = new FlutterSound();
flutterSound.setSubscriptionDuration(0.01);
flutterSound.setDbPeakLevelUpdate(0.8);
flutterSound.setDbLevelEnabled(true);
initializeDateFormatting();
}
void startRecorder() async{
try {
// String path = await flutterSound.startRecorder
// (
// paths[_codec.index],
// codec: _codec,
// sampleRate: 16000,
// bitRate: 16000,
// numChannels: 1,
// androidAudioSource: AndroidAudioSource.MIC,
// );
Directory tempDir = await getTemporaryDirectory();
String path = await flutterSound.startRecorder(
uri: '${tempDir.path}/sound.aac',
codec: _codec,
);
print('startRecorder: $path');
_recorderSubscription = flutterSound.onRecorderStateChanged.listen((e) {
DateTime date = new DateTime.fromMillisecondsSinceEpoch(
e.currentPosition.toInt(),
isUtc: true);
String txt = DateFormat('mm:ss:SS', 'en_GB').format(date);
this.setState(() {
this._recorderTxt = txt.substring(0, 8);
});
});
_dbPeakSubscription =
flutterSound.onRecorderDbPeakChanged.listen((value) {
print("got update -> $value");
setState(() {
this._dbLevel = value;
});
});
this.setState(() {
this._isRecording = true;
this._path[_codec.index] = path;
});
} catch (err) {
print ('startRecorder error: $err');
setState (()
{
this._isRecording = false;
});
}
}
void stopRecorder() async {
try {
String result = await flutterSound.stopRecorder();
print ('stopRecorder: $result');
if ( _recorderSubscription != null ) {
_recorderSubscription.cancel ();
_recorderSubscription = null;
}
if ( _dbPeakSubscription != null ) {
_dbPeakSubscription.cancel ();
_dbPeakSubscription = null;
}
} catch ( err ) {
print ('stopRecorder error: $err');
}
this.setState(() {
this._isRecording = false;
});
}
Future<bool> fileExists(String path) async {
return await File(path).exists();
}
// In this simple example, we just load a file in memory.This is stupid but just for demonstation of startPlayerFromBuffer()
Future <Uint8List> makeBuffer(String path) async {
try {
if (!await fileExists(path))
return null;
File file = File(path);
file.openRead();
var contents = await file.readAsBytes ();
print ('The file is ${contents.length} bytes long.');
return contents;
} catch (e) {
print(e);
return null;
}
}
List<String>assetSample =
[
'assets/samples/sample.aac',
'assets/samples/sample.aac',
'assets/samples/sample.opus',
'assets/samples/sample.caf',
'assets/samples/sample.mp3',
'assets/samples/sample.ogg',
'assets/samples/sample.wav',
];
void startPlayer() async{
try {
String path = null;
if (_media == t_MEDIA.ASSET) {
Uint8List buffer = (await rootBundle.load(assetSample[_codec.index])).buffer.asUint8List();
path = await flutterSound.startPlayerFromBuffer(buffer, codec: _codec,);
} else
if (_media == t_MEDIA.FILE) {// Do we want to play from buffer or from file ?
if (await fileExists(_path[_codec.index]))
path = await flutterSound.startPlayer(this._path[_codec.index]); // From file
} else
if (_media == t_MEDIA.BUFFER) { // Do we want to play from buffer or from file ?
if (await fileExists(_path[_codec.index])) {
Uint8List buffer = await makeBuffer (this._path[_codec.index]);
if ( buffer != null )
path = await flutterSound.startPlayerFromBuffer(buffer, codec: _codec,); // From buffer
}
}
if (path == null) {
print ('Error starting player');
return;
}
print('startPlayer: $path');
await flutterSound.setVolume(1.0);
_playerSubscription = flutterSound.onPlayerStateChanged.listen((e) {
if (e != null) {
sliderCurrentPosition = e.currentPosition;
maxDuration = e.duration;
DateTime date = new DateTime.fromMillisecondsSinceEpoch(
e.currentPosition.toInt(),
isUtc: true);
String txt = DateFormat('mm:ss:SS', 'en_GB').format(date);
this.setState(() {
//this._isPlaying = true;
this._playerTxt = txt.substring(0, 8);
});
}
});
} catch (err) {
print('error: $err');
}
setState(() {} );
}
void stopPlayer() async{
try {
String result = await flutterSound.stopPlayer();
print('stopPlayer: $result');
if (_playerSubscription != null) {
_playerSubscription.cancel();
_playerSubscription = null;
}
sliderCurrentPosition = 0.0;
} catch (err) {
print('error: $err');
}
this.setState(() {
//this._isPlaying = false;
});
}
void pausePlayer() async{
String result;
try {
if ( flutterSound.audioState == t_AUDIO_STATE.IS_PAUSED ) {
result = await flutterSound.resumePlayer ();
print ('resumePlayer: $result');
} else {
result = await flutterSound.pausePlayer ();
print ('pausePlayer: $result');
}
} catch(err) {
print('error: $err');
}
setState(() {} );
}
void seekToPlayer(int milliSecs) async{
String result = await flutterSound.seekToPlayer(milliSecs);
print('seekToPlayer: $result');
}
onPausePlayerPressed() {
return flutterSound.audioState == t_AUDIO_STATE.IS_PLAYING || flutterSound.audioState == t_AUDIO_STATE.IS_PAUSED ? pausePlayer : null;
}
onStopPlayerPressed() {
return flutterSound.audioState == t_AUDIO_STATE.IS_PLAYING || flutterSound.audioState == t_AUDIO_STATE.IS_PAUSED ? stopPlayer : null;
}
onStartPlayerPressed() {
if (_media == t_MEDIA.FILE || _media == t_MEDIA.BUFFER)
{
if ( _path[_codec.index] == null )
return null;
}
return flutterSound.audioState == t_AUDIO_STATE.IS_STOPPED ? startPlayer : null;
}
onStartRecorderPressed() {
if (_media == t_MEDIA.ASSET || _media == t_MEDIA.BUFFER)
return null;
if (flutterSound.audioState == t_AUDIO_STATE.IS_RECORDING)
return stopRecorder;
return flutterSound.audioState == t_AUDIO_STATE.IS_STOPPED ? startRecorder : null;
}
AssetImage recorderAssetImage() {
if (onStartRecorderPressed() == null)
return AssetImage('res/icons/ic_mic_disabled.png');
return flutterSound.audioState == t_AUDIO_STATE.IS_STOPPED ? AssetImage('res/icons/ic_mic.png') : AssetImage('res/icons/ic_stop.png');
}
setCodec (t_CODEC codec) async {
setState
(() {_codec = codec;});
}
Widget makeNavigationBar(BuildContext context) {
return ButtonBar
(
mainAxisSize: MainAxisSize.max, // this will take space as minimum as posible(to center)
children: <Widget>
[
Text('Media'),
Container
(
margin: const EdgeInsets.all(0.0),
padding: const EdgeInsets.all(0.0),
decoration: BoxDecoration
(
color: Color(0xFFC6E5E2),
border: Border.all (color: Color(0xFF2F2376), width: 3,),
),
child: Row
(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children:
[
Radio
(
value: t_MEDIA.FILE,
groupValue: _media,
onChanged: (radioBtn)
{
setState
(() {_media = radioBtn;});
},
),
new Text('File'),
Radio
(
value: t_MEDIA.BUFFER,
groupValue: _media,
onChanged: (radioBtn)
{
setState
(() {_media = radioBtn;});
},
),
new Text('Buffer'),
Radio
(
value: t_MEDIA.ASSET,
groupValue: _media,
onChanged: (radioBtn)
{
setState
(() {_media = radioBtn;});
},
),
new Text('Asset'),
],
),
),
Divider(),
Text('Codec'),
Container
(
height:105,
margin: const EdgeInsets.all(0.0),
padding: const EdgeInsets.all(0.0),
decoration: BoxDecoration
(
color: Color(0xFFC6E5E2),
border: Border.all (color: Color(0xFF2F2376), width: 3,),
),
child: Column
(
children:
[
Container
(
color: Color(0xFFC6E5E2),
child: Row
(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children:
[
Radio
(
value: t_CODEC.CODEC_AAC,
groupValue: _codec,
onChanged: setCodec,
),
Text('AAC'),
Radio
(
value: t_CODEC.CODEC_OPUS,
groupValue: _codec,
onChanged: setCodec,
),
Text('OGG/Opus'),
Radio
(
value: t_CODEC.CODEC_CAF_OPUS,
groupValue: _codec,
onChanged: setCodec,
),
Text('CAF/Opus'),
],
),
),
Container
(
color: Color(0xFFC6E5E2),
child: Row
(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children:
[
Radio
(
value: t_CODEC.CODEC_MP3,
groupValue: _codec,
onChanged: setCodec,
),
Text('MP3'),
Radio
(
value: t_CODEC.CODEC_VORBIS,
groupValue: _codec,
onChanged: setCodec,
),
Text('OGG/Vorbis'),
Radio
(
value: t_CODEC.CODEC_PCM,
groupValue: _codec,
onChanged: setCodec,
),
Text('PCM'),
],
),
),
],
),
),
],
)
;
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Flutter Sound'),
),
body: ListView(
children: <Widget>[
Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
margin: EdgeInsets.only(top: 12.0, bottom:16.0),
child: Text(
this._recorderTxt,
style: TextStyle(
fontSize: 35.0,
color: Colors.black,
),
),
),
_isRecording ? LinearProgressIndicator(
value: 100.0 / 160.0 * (this._dbLevel ?? 1) / 100,
valueColor: AlwaysStoppedAnimation<Color>(Colors.green),
backgroundColor: Colors.red,
) : Container()
],
),
Row(
children: <Widget>[
Container(
width: 56.0,
height: 50.0,
child: ClipOval(
child: FlatButton(
onPressed: onStartRecorderPressed(),
padding: EdgeInsets.all(8.0),
child: Image(
image: recorderAssetImage(),
),
),
),
),
],
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
),
Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
margin: EdgeInsets.only(top: 12.0, bottom:16.0),
child: Text(
this._playerTxt,
style: TextStyle(
fontSize: 35.0,
color: Colors.black,
),
),
),
],
),
Row(
children: <Widget>[
Container(
width: 56.0,
height: 50.0,
child: ClipOval(
child: FlatButton(
onPressed: onStartPlayerPressed(),
disabledColor: Colors.white,
padding: EdgeInsets.all(8.0),
child: Image(
image: AssetImage(onStartPlayerPressed() != null ? 'res/icons/ic_play.png' : 'res/icons/ic_play_disabled.png'),
),
),
),
),
Container(
width: 56.0,
height: 50.0,
child: ClipOval(
child: FlatButton(
onPressed: onPausePlayerPressed(),
disabledColor: Colors.white,
padding: EdgeInsets.all(8.0),
child: Image(
width: 36.0,
height: 36.0,
image: AssetImage(onPausePlayerPressed() != null ? 'res/icons/ic_pause.png' : 'res/icons/ic_pause_disabled.png'),
),
),
),
),
Container(
width: 56.0,
height: 50.0,
child: ClipOval(
child: FlatButton(
onPressed: onStopPlayerPressed(),
disabledColor: Colors.white,
padding: EdgeInsets.all(8.0),
child: Image(
width: 28.0,
height: 28.0,
image: AssetImage(onStopPlayerPressed() != null ? 'res/icons/ic_stop.png' : 'res/icons/ic_stop_disabled.png'),
),
),
),
),
],
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
),
Container(
height: 30.0,
child: Slider(
value: sliderCurrentPosition,
min: 0.0,
max: maxDuration,
onChanged: (double value) async{
await flutterSound.seekToPlayer(value.toInt());
},
divisions: maxDuration.toInt()
)
),
],
),
bottomNavigationBar: makeNavigationBar(context),
),
);
}
}Metadata
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Metadata
Flutter plugin that relates to sound like audio and recorder.
Repository (GitHub)
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License
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