mp3editor 0.0.2 
mp3editor: ^0.0.2 copied to clipboard
A Flutter plugin for reading and writing mp3 metadata from mp3 file tags. Supports Id3v1 and Id3v2 tags.
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:path_provider/path_provider.dart';
import 'package:mp3editor/mp3editor.dart';
import 'package:flutter/services.dart';
import 'dart:io';
String title = "";
String artist = "";
String album = "";
String year = "";
int genre = 0;
String comment = "";
String trackNumber = "";
String filepath;
String lyrics = "";
String composer = "";
String publisher = "";
String originalArtist = "";
String albumArtist = "";
String copyright = "";
String url = "";
String encoder = "";
void main() => runApp(MyApp());
Future<void> writeToFile(ByteData data, String path) {
final buffer = data.buffer;
return new File(path)
.writeAsBytes(buffer.asUint8List(data.offsetInBytes, data.lengthInBytes));
}
Future<void> getFilepath() async {
String dir = (await getApplicationDocumentsDirectory()).path;
if (!(File(dir + "/track.mp3").existsSync())) {
var bytes = await rootBundle.load("mp3samples/track.mp3");
await writeToFile(bytes, dir + "/track.mp3");
}
filepath = dir + "/track.mp3";
}
Future<dynamic> getValue(Function(dynamic) func) async {
dynamic value;
try {
value = await func(filepath);
} catch (e) {
print(e);
}
return value;
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
@override
void initState() {
super.initState();
getFilepath();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: DefaultTabController(
length: 2,
child: Scaffold(
appBar: AppBar(
title: const Text('Plugin example app'),
bottom: TabBar(tabs: [Tab(text: "Id3v1"), Tab(text: "Id3v2")]),
),
body: TabBarView(children: [Id3v1(), Id3v2()]),
),
),
);
}
}
class Id3v1 extends StatefulWidget {
Id3v1State createState() => Id3v1State();
}
class Id3v1State extends State<Id3v1> {
final _formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
return SingleChildScrollView(
child: Center(
child: Column(
children: <Widget>[
Row(
children: <Widget>[
Text(title != null ? title : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getTitle).then((data) {
title = data;
});
});
},
child: Text("Get Title"))
],
),
Row(
children: <Widget>[
Text(artist != null ? artist : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getArtist).then((data) {
artist = data;
});
});
},
child: Text("Get Artist"))
],
),
Row(
children: <Widget>[
Text(trackNumber != null ? trackNumber : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getTrackNumber).then((data) {
trackNumber = data;
});
});
},
child: Text("Get Track Number"))
],
),
Row(
children: <Widget>[
Text(album != null ? album : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getAlbum).then((data) {
album = data;
});
});
},
child: Text("Get Album"))
],
),
Row(
children: <Widget>[
Text(year != null ? year : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getYear).then((data) {
year = data;
});
});
},
child: Text("Get Year"))
],
),
Row(
children: <Widget>[
Text(genre.toString() != null ? genre.toString() : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getGenre).then((data) {
genre = data;
});
});
},
child: Text("Get Genre Number"))
],
),
Row(
children: <Widget>[
Text(comment != null ? comment : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getComment).then((data) {
comment = data;
});
});
},
child: Text("Get Comment"))
],
),
Form(
key: _formKey,
child: Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: title != null ? title : "empty",
labelText: "Title"),
onSaved: (val) => title = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: artist != null ? artist : "empty",
labelText: "Artist"),
onSaved: (val) => artist = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: trackNumber != null ? trackNumber : "empty",
labelText: "Track Number"),
onSaved: (val) => trackNumber = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: album != null ? album : "empty",
labelText: "Album"),
onSaved: (val) => album = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: year != null ? year : "empty",
labelText: "Year"),
onSaved: (val) => year = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: genre.toString() != null
? genre.toString()
: "empty",
labelText:
"Genre number , check online for a list of ID3v1 genres"),
validator: (value) {
if (int.parse(value) == null) {
return "Please enter a number.";
} else {
return null;
}
},
onSaved: (val) => genre = int.parse(val),
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: comment != null ? comment : "empty",
labelText: "Comment"),
onSaved: (val) => comment = val,
),
),
RaisedButton(
onPressed: () {
final form = _formKey.currentState;
if (form.validate()) {
form.save();
Mp3editor.setID3v1Tag(
filepath: filepath,
trackNumber: trackNumber,
title: title,
artist: artist,
album: album,
year: year,
genre: genre,
comment: comment);
}
},
child: Text("Submit"),
)
],
),
)
],
),
),
);
}
}
class Id3v2 extends StatefulWidget {
Id3v2State createState() => Id3v2State();
}
class Id3v2State extends State<Id3v2> {
final _formKey = GlobalKey<FormState>();
@override
Widget build(BuildContext context) {
// TODO: implement build
return SingleChildScrollView(
child: Center(
child: Column(
children: <Widget>[
Row(
children: <Widget>[
Text(title != null ? title : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getTitle).then((data) {
title = data;
});
});
},
child: Text("Get Title"))
],
),
Row(
children: <Widget>[
Text(artist != null ? artist : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getArtist).then((data) {
artist = data;
});
});
},
child: Text("Get Artist"))
],
),
Row(
children: <Widget>[
Text(trackNumber != null ? trackNumber : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getTrackNumber).then((data) {
trackNumber = data;
});
});
},
child: Text("Get Track Number"))
],
),
Row(
children: <Widget>[
Text(album != null ? album : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getAlbum).then((data) {
album = data;
});
});
},
child: Text("Get Album"))
],
),
Row(
children: <Widget>[
Text(year != null ? year : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getYear).then((data) {
year = data;
});
});
},
child: Text("Get Year"))
],
),
Row(
children: <Widget>[
Text(genre.toString() != null ? genre.toString() : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getGenre).then((data) {
genre = data;
});
});
},
child: Text("Get Genre Number"))
],
),
Row(
children: <Widget>[
Text(comment != null ? comment : "empty"),
MaterialButton(
onPressed: () {
setState(() {
getValue(Mp3editor.getComment).then((data) {
comment = data;
});
});
},
child: Text("Get Comment"))
],
),
Form(
key: _formKey,
child: Column(
children: <Widget>[
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: title != null ? title : "empty",
labelText: "Title"),
onSaved: (val) => title = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: artist != null ? artist : "empty",
labelText: "Artist"),
onSaved: (val) => artist = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: trackNumber != null ? trackNumber : "empty",
labelText: "Track Number"),
onSaved: (val) => trackNumber = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: album != null ? album : "empty",
labelText: "Album"),
onSaved: (val) => album = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: year != null ? year : "empty",
labelText: "Year"),
onSaved: (val) => year = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: genre.toString() != null
? genre.toString()
: "empty",
labelText:
"Genre number , check online for a list of ID3v1 genres"),
validator: (value) {
if (int.parse(value) == null) {
return "Please enter a number.";
} else {
return null;
}
},
onSaved: (val) => genre = int.parse(val),
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: comment != null ? comment : "empty",
labelText: "Comment"),
onSaved: (val) => comment = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: lyrics != null ? lyrics : "empty",
labelText: "Lyrics"),
onSaved: (val) => lyrics = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: composer != null ? composer : "empty",
labelText: "Composer"),
onSaved: (val) => composer = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: publisher != null ? publisher : "empty",
labelText: "Publisher"),
onSaved: (val) => publisher = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText:
originalArtist != null ? originalArtist : "empty",
labelText: "Original Artist"),
onSaved: (val) => originalArtist = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: albumArtist != null ? albumArtist : "empty",
labelText: "Album Artist"),
onSaved: (val) => albumArtist = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: copyright != null ? copyright : "empty",
labelText: "Copyright"),
onSaved: (val) => copyright = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: url != null ? url : "empty",
labelText: "Url"),
onSaved: (val) => url = val,
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: TextFormField(
decoration: InputDecoration(
hintText: encoder != null ? encoder : "empty",
labelText: "Encoder"),
onSaved: (val) => encoder = val,
),
),
RaisedButton(
onPressed: () {
final form = _formKey.currentState;
if (form.validate()) {
form.save();
Mp3editor.setID3v2Tag(
filepath: filepath,
trackNumber: trackNumber,
title: title,
artist: artist,
album: album,
year: year,
genre: genre,
comment: comment,
lyrics: lyrics,
composer: composer,
publisher: publisher,
originalArtist: originalArtist,
albumArtist: albumArtist,
copyright: copyright,
url: url,
encoder: encoder);
}
},
child: Text("Submit"),
)
],
),
)
],
),
),
);
}
}Metadata
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Metadata
A Flutter plugin for reading and writing mp3 metadata from mp3 file tags. Supports Id3v1 and Id3v2 tags.
Homepage
Repository (GitHub)
View/report issues
License
GPL-3.0 (LICENSE)
