gapless_audio_loop 1.1.1

A plugin specialized on playing audio files on a gapless loop

example/lib/main.dart

import 'dart:io';

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

import 'package:gapless_audio_loop/gapless_audio_loop.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: 'Flutter Demo Home Page'),
    );
  }
}

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> {
  GaplessAudioLoop _player;
  String _localFilePath;

  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: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            RaisedButton(
                child: Text("Play"),
                onPressed: () async {
                  final player = GaplessAudioLoop();
                  await player.loadAsset('Loop-Menu.wav');

                  await player.play();

                  setState(() {
                    _player = player;
                  });
                }),
            RaisedButton(
                child: Text("Stop"),
                onPressed: () {
                  if (_player != null) {
                    _player.stop();
                  }
                }),
            RaisedButton(
                child: Text("Pause"),
                onPressed: () {
                  if (_player != null) {
                    _player.pause();
                  }
                }),
            RaisedButton(
                child: Text("Resume"),
                onPressed: () {
                  if (_player != null) {
                    _player.resume();
                  }
                }),
            RaisedButton(
                child: Text("Seek to 5 secs"),
                onPressed: () {
                  if (_player != null) {
                    _player.seek(Duration(seconds: 5));
                  }
                }),
            Row(mainAxisAlignment: MainAxisAlignment.center, children: [
              Text("Volume"),
              RaisedButton(
                  child: Text("0.2"),
                  onPressed: () {
                    if (_player != null) {
                      _player.setVolume(0.2);
                    }
                  }),
              RaisedButton(
                  child: Text("0.5"),
                  onPressed: () {
                    if (_player != null) {
                      _player.setVolume(0.5);
                    }
                  }),
              RaisedButton(
                  child: Text("1.0"),
                  onPressed: () {
                    if (_player != null) {
                      _player.setVolume(1.0);
                    }
                  }),
            ]),
            RaisedButton(
                child: Text("Download file to Device, and play it"),
                onPressed: () async {
                  await _loadFile();

                  final player = GaplessAudioLoop();
                  player.loadFile(_localFilePath);

                  await player.play();

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