audioplayers 0.15.0
audioplayers: ^0.15.0 copied to clipboard
A flutter plugin to play multiple audio files simultaneously
import 'dart:async';
import 'dart:io';
import 'package:audioplayers/audio_cache.dart';
import 'package:audioplayers/audioplayers.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart';
import 'package:path_provider/path_provider.dart';
import 'package:provider/provider.dart';
import 'package:flutter/src/foundation/constants.dart';
import 'player_widget.dart';
typedef void OnError(Exception exception);
const kUrl1 = 'https://luan.xyz/files/audio/ambient_c_motion.mp3';
const kUrl2 = 'https://luan.xyz/files/audio/nasa_on_a_mission.mp3';
const kUrl3 = 'http://bbcmedia.ic.llnwd.net/stream/bbcmedia_radio1xtra_mf_p';
void main() {
runApp(MaterialApp(home: ExampleApp()));
}
class ExampleApp extends StatefulWidget {
@override
_ExampleAppState createState() => _ExampleAppState();
}
class _ExampleAppState extends State<ExampleApp> {
AudioCache audioCache = AudioCache();
AudioPlayer advancedPlayer = AudioPlayer();
String localFilePath;
@override
void initState() {
super.initState();
if (kIsWeb) {
// Calls to Platform.isIOS fails on web
return;
}
if (Platform.isIOS) {
if (audioCache.fixedPlayer != null) {
audioCache.fixedPlayer.startHeadlessService();
}
advancedPlayer.startHeadlessService();
}
}
Future _loadFile() async {
final bytes = await readBytes(kUrl1);
final dir = await getApplicationDocumentsDirectory();
final file = File('${dir.path}/audio.mp3');
await file.writeAsBytes(bytes);
if (await file.exists()) {
setState(() {
localFilePath = file.path;
});
}
}
Widget remoteUrl() {
return SingleChildScrollView(
child: _Tab(children: [
Text(
'Sample 1 ($kUrl1)',
key: Key('url1'),
style: TextStyle(fontWeight: FontWeight.bold),
),
PlayerWidget(url: kUrl1),
Text(
'Sample 2 ($kUrl2)',
style: TextStyle(fontWeight: FontWeight.bold),
),
PlayerWidget(url: kUrl2),
Text(
'Sample 3 ($kUrl3)',
style: TextStyle(fontWeight: FontWeight.bold),
),
PlayerWidget(url: kUrl3),
Text(
'Sample 4 (Low Latency mode) ($kUrl1)',
style: TextStyle(fontWeight: FontWeight.bold),
),
PlayerWidget(url: kUrl1, mode: PlayerMode.LOW_LATENCY),
]),
);
}
Widget localFile() {
return _Tab(children: [
Text('File: $kUrl1'),
_Btn(txt: 'Download File to your Device', onPressed: () => _loadFile()),
Text('Current local file path: $localFilePath'),
localFilePath == null
? Container()
: PlayerWidget(
url: localFilePath,
),
]);
}
Widget localAsset() {
return SingleChildScrollView(
child: _Tab(children: [
Text('Play Local Asset \'audio.mp3\':'),
_Btn(txt: 'Play', onPressed: () => audioCache.play('audio.mp3')),
Text('Loop Local Asset \'audio.mp3\':'),
_Btn(txt: 'Loop', onPressed: () => audioCache.loop('audio.mp3')),
Text('Play Local Asset \'audio2.mp3\':'),
_Btn(txt: 'Play', onPressed: () => audioCache.play('audio2.mp3')),
Text('Play Local Asset In Low Latency \'audio.mp3\':'),
_Btn(
txt: 'Play',
onPressed: () =>
audioCache.play('audio.mp3', mode: PlayerMode.LOW_LATENCY)),
Text('Play Local Asset Concurrently In Low Latency \'audio.mp3\':'),
_Btn(
txt: 'Play',
onPressed: () async {
await audioCache.play('audio.mp3', mode: PlayerMode.LOW_LATENCY);
await audioCache.play('audio2.mp3', mode: PlayerMode.LOW_LATENCY);
}),
Text('Play Local Asset In Low Latency \'audio2.mp3\':'),
_Btn(
txt: 'Play',
onPressed: () =>
audioCache.play('audio2.mp3', mode: PlayerMode.LOW_LATENCY)),
getLocalFileDuration(),
]),
);
}
Future<int> _getDuration() async {
File audiofile = await audioCache.load('audio2.mp3');
await advancedPlayer.setUrl(
audiofile.path,
);
int duration = await Future.delayed(
Duration(seconds: 2), () => advancedPlayer.getDuration());
return duration;
}
getLocalFileDuration() {
return FutureBuilder<int>(
future: _getDuration(),
builder: (BuildContext context, AsyncSnapshot<int> snapshot) {
switch (snapshot.connectionState) {
case ConnectionState.none:
return Text('No Connection...');
case ConnectionState.active:
case ConnectionState.waiting:
return Text('Awaiting result...');
case ConnectionState.done:
if (snapshot.hasError) return Text('Error: ${snapshot.error}');
return Text(
'audio2.mp3 duration is: ${Duration(milliseconds: snapshot.data)}');
}
return null; // unreachable
},
);
}
Widget notification() {
return _Tab(children: [
Text('Play notification sound: \'messenger.mp3\':'),
_Btn(
txt: 'Play',
onPressed: () =>
audioCache.play('messenger.mp3', isNotification: true)),
]);
}
@override
Widget build(BuildContext context) {
return MultiProvider(
providers: [
StreamProvider<Duration>.value(
initialData: Duration(),
value: advancedPlayer.onAudioPositionChanged),
],
child: DefaultTabController(
length: 5,
child: Scaffold(
appBar: AppBar(
bottom: TabBar(
tabs: [
Tab(text: 'Remote Url'),
Tab(text: 'Local File'),
Tab(text: 'Local Asset'),
Tab(text: 'Notification'),
Tab(text: 'Advanced'),
],
),
title: Text('audioplayers Example'),
),
body: TabBarView(
children: [
remoteUrl(),
localFile(),
localAsset(),
notification(),
Advanced(
advancedPlayer: advancedPlayer,
)
],
),
),
),
);
}
}
class Advanced extends StatefulWidget {
final AudioPlayer advancedPlayer;
const Advanced({Key key, this.advancedPlayer}) : super(key: key);
@override
_AdvancedState createState() => _AdvancedState();
}
class _AdvancedState extends State<Advanced> {
bool seekDone;
@override
void initState() {
widget.advancedPlayer.seekCompleteHandler =
(finished) => setState(() => seekDone = finished);
super.initState();
}
@override
Widget build(BuildContext context) {
final audioPosition = Provider.of<Duration>(context);
return SingleChildScrollView(
child: _Tab(
children: [
Column(children: [
Text('Source Url'),
Row(children: [
_Btn(
txt: 'Audio 1',
onPressed: () => widget.advancedPlayer.setUrl(kUrl1)),
_Btn(
txt: 'Audio 2',
onPressed: () => widget.advancedPlayer.setUrl(kUrl2)),
_Btn(
txt: 'Stream',
onPressed: () => widget.advancedPlayer.setUrl(kUrl3)),
], mainAxisAlignment: MainAxisAlignment.spaceEvenly),
]),
Column(children: [
Text('Release Mode'),
Row(children: [
_Btn(
txt: 'STOP',
onPressed: () =>
widget.advancedPlayer.setReleaseMode(ReleaseMode.STOP)),
_Btn(
txt: 'LOOP',
onPressed: () =>
widget.advancedPlayer.setReleaseMode(ReleaseMode.LOOP)),
_Btn(
txt: 'RELEASE',
onPressed: () => widget.advancedPlayer
.setReleaseMode(ReleaseMode.RELEASE)),
], mainAxisAlignment: MainAxisAlignment.spaceEvenly),
]),
Column(children: [
Text('Volume'),
Row(children: [
_Btn(
txt: '0.0',
onPressed: () => widget.advancedPlayer.setVolume(0.0)),
_Btn(
txt: '0.5',
onPressed: () => widget.advancedPlayer.setVolume(0.5)),
_Btn(
txt: '1.0',
onPressed: () => widget.advancedPlayer.setVolume(1.0)),
_Btn(
txt: '2.0',
onPressed: () => widget.advancedPlayer.setVolume(2.0)),
], mainAxisAlignment: MainAxisAlignment.spaceEvenly),
]),
Column(children: [
Text('Control'),
Row(children: [
_Btn(
txt: 'resume',
onPressed: () => widget.advancedPlayer.resume()),
_Btn(
txt: 'pause', onPressed: () => widget.advancedPlayer.pause()),
_Btn(txt: 'stop', onPressed: () => widget.advancedPlayer.stop()),
_Btn(
txt: 'release',
onPressed: () => widget.advancedPlayer.release()),
], mainAxisAlignment: MainAxisAlignment.spaceEvenly),
]),
Column(children: [
Text('Seek in milliseconds'),
Row(children: [
_Btn(
txt: '100ms',
onPressed: () {
widget.advancedPlayer.seek(Duration(
milliseconds: audioPosition.inMilliseconds + 100));
setState(() => seekDone = false);
}),
_Btn(
txt: '500ms',
onPressed: () {
widget.advancedPlayer.seek(Duration(
milliseconds: audioPosition.inMilliseconds + 500));
setState(() => seekDone = false);
}),
_Btn(
txt: '1s',
onPressed: () {
widget.advancedPlayer
.seek(Duration(seconds: audioPosition.inSeconds + 1));
setState(() => seekDone = false);
}),
_Btn(
txt: '1.5s',
onPressed: () {
widget.advancedPlayer.seek(Duration(
milliseconds: audioPosition.inMilliseconds + 1500));
setState(() => seekDone = false);
}),
], mainAxisAlignment: MainAxisAlignment.spaceEvenly),
]),
Column(children: [
Text('Rate'),
Row(children: [
_Btn(
txt: '0.5',
onPressed: () =>
widget.advancedPlayer.setPlaybackRate(playbackRate: 0.5)),
_Btn(
txt: '1.0',
onPressed: () =>
widget.advancedPlayer.setPlaybackRate(playbackRate: 1.0)),
_Btn(
txt: '1.5',
onPressed: () =>
widget.advancedPlayer.setPlaybackRate(playbackRate: 1.5)),
_Btn(
txt: '2.0',
onPressed: () =>
widget.advancedPlayer.setPlaybackRate(playbackRate: 2.0)),
], mainAxisAlignment: MainAxisAlignment.spaceEvenly),
]),
Text('Audio Position: ${audioPosition}'),
seekDone == null
? SizedBox(
width: 0,
height: 0,
)
: Text(seekDone ? "Seek Done" : "Seeking..."),
],
),
);
}
}
class _Tab extends StatelessWidget {
final List<Widget> children;
const _Tab({Key key, this.children}) : super(key: key);
@override
Widget build(BuildContext context) {
return Center(
child: Container(
alignment: Alignment.topCenter,
padding: EdgeInsets.all(16.0),
child: SingleChildScrollView(
child: Column(
children: children
.map((w) => Container(child: w, padding: EdgeInsets.all(6.0)))
.toList(),
),
),
),
);
}
}
class _Btn extends StatelessWidget {
final String txt;
final VoidCallback onPressed;
const _Btn({Key key, this.txt, this.onPressed}) : super(key: key);
@override
Widget build(BuildContext context) {
return ButtonTheme(
minWidth: 48.0,
child: RaisedButton(child: Text(txt), onPressed: onPressed));
}
}