ocarina 0.0.1

Play local audio files on flutter

example/lib/main.dart

import 'dart:io';
import 'dart:async';

import 'package:flutter/material.dart';
import 'package:path_provider/path_provider.dart';
import 'package:http/http.dart';

import 'package:ocarina/ocarina.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Ocarina Example'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

const staticFileUrl = 'https://luan.xyz/files/audio/ambient_c_motion.mp3';

class _MyHomePageState extends State<MyHomePage> {
  OcarinaPlayer _player;
  String _localFilePath;
  bool _loop = true;

  Future _loadFile() async {
    final bytes = await readBytes(staticFileUrl);
    final dir = await getApplicationDocumentsDirectory();
    final file = File('${dir.path}/audio.mp3');

    await file.writeAsBytes(bytes);
    if (await file.exists()) {
      setState(() {
        _localFilePath = file.path;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: (_player != null
          ? PlayerWidget(player: _player)
          : Column(
              children: [
                RaisedButton(
                    child: Text(_loop ? "Loop mode" : "Single play mode"),
                    onPressed: () async {
                      setState(() {
                        _loop = !_loop;
                      });
                    }
                ),
                RaisedButton(
                    child: Text("Play asset audio"),
                    onPressed: () async {
                      await _loadFile();

                      final player = OcarinaPlayer(asset: 'assets/Loop-Menu.wav', loop: _loop);
                      await player.load();

                      setState(() {
                        _player = player;
                      });
                    }
                ),
                RaisedButton(
                    child: Text("Download file to Device, and play it"),
                    onPressed: () async {
                      await _loadFile();

                      final player = OcarinaPlayer(filePath: _localFilePath);
                      await player.load();

                      setState(() {
                        _player = player;
                      });
                    }
                )
              ],
          )),
      ),
    );
  }
}

class PlayerWidget extends StatelessWidget {
  final OcarinaPlayer player;

  PlayerWidget({ this.player });

  @override
  Widget build(_) {
    return Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          RaisedButton(
              child: Text("Play"),
              onPressed: () async {
                await player.play();
              }),
          RaisedButton(
              child: Text("Stop"),
              onPressed: () {
                player.stop();
              }),
          RaisedButton(
              child: Text("Pause"),
              onPressed: () {
                player.pause();
              }),
          RaisedButton(
              child: Text("Resume"),
              onPressed: () {
                player.resume();
              }),
          RaisedButton(
              child: Text("Seek to 5 secs"),
              onPressed: () {
                player.seek(Duration(seconds: 5));
              }),
          Row(mainAxisAlignment: MainAxisAlignment.center, children: [
            Text("Volume"),
            RaisedButton(
                child: Text("0.2"),
                onPressed: () {
                  player.updateVolume(0.2);
                }),
            RaisedButton(
                child: Text("0.5"),
                onPressed: () {
                  player.updateVolume(0.5);
                }),
            RaisedButton(
                child: Text("1.0"),
                onPressed: () {
                  player.updateVolume(1.0);
                }),
            ]),
          ]);
  }
}