spotify_sdk 0.5.0

A flutter plugin that let's you communicate with the spotify sdk and auth lib

example/lib/main.dart

import 'dart:async';
import 'dart:typed_data';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:logger/logger.dart';
import 'package:spotify_sdk/models/crossfade_state.dart';
import 'package:spotify_sdk/models/image_uri.dart';
import 'package:spotify_sdk/models/player_context.dart';
import 'package:spotify_sdk/models/player_state.dart';
import 'package:spotify_sdk/spotify_sdk.dart';

import 'widgets/sized_icon_button.dart';

Future<void> main() async {
  await DotEnv().load('.env');
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(home: Home());
  }
}

class Home extends StatefulWidget {
  @override
  _HomeState createState() => _HomeState();
}

class _HomeState extends State<Home> {
  bool _loading = false;
  bool _connected = false;
  final Logger _logger = Logger();

  CrossfadeState crossfadeState;

  @override
  Widget build(BuildContext context) {
    return StreamBuilder(
        stream: SpotifySdk.subscribeConnectionStatus(),
        builder: (context, snapshot) {
          _connected = false;
          if (snapshot.data != null) {
            _connected = snapshot.data.connected;
          }
          return Scaffold(
            appBar: AppBar(
              title: Text("SpotifySdk Example"),
              actions: [
                _connected
                    ? FlatButton(
                        child: Text("Logout"), onPressed: () => logout())
                    : Container()
              ],
            ),
            body: _sampleFlowWidget(context),
          );
        });
  }

  Widget _sampleFlowWidget(BuildContext context2) {
    return Stack(
      children: [
        ListView(
          padding: EdgeInsets.all(8),
          children: [
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: <Widget>[
                FlatButton(
                  child: Icon(Icons.settings_remote),
                  onPressed: () => connectToSpotifyRemote(),
                ),
                FlatButton(
                  child: Text("get auth token "),
                  onPressed: () => getAuthenticationToken(),
                ),
              ],
            ),
            Divider(),
            Text("Player State", style: TextStyle(fontSize: 16)),
            _connected
                ? playerStateWidget()
                : Center(
                    child: Text("Not connected"),
                  ),
            Divider(),
            Text("Player Context", style: TextStyle(fontSize: 16)),
            _connected
                ? playerContextWidget()
                : Center(
                    child: Text("Not connected"),
                  ),
            Divider(),
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
              children: <Widget>[
                SizedIconButton(
                  width: 50,
                  icon: Icons.skip_previous,
                  onPressed: () => skipPrevious(),
                ),
                SizedIconButton(
                  width: 50,
                  icon: Icons.play_arrow,
                  onPressed: () => resume(),
                ),
                SizedIconButton(
                  width: 50,
                  icon: Icons.pause,
                  onPressed: () => pause(),
                ),
                SizedIconButton(
                  width: 50,
                  icon: Icons.skip_next,
                  onPressed: () => skipNext(),
                ),
              ],
            ),
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
              children: <Widget>[
                SizedIconButton(
                  width: 50,
                  icon: Icons.queue_music,
                  onPressed: () => queue(),
                ),
                SizedIconButton(
                  width: 50,
                  icon: Icons.play_circle_filled,
                  onPressed: () => play(),
                ),
                SizedIconButton(
                  width: 50,
                  icon: Icons.repeat,
                  onPressed: () => toggleRepeat(),
                ),
                SizedIconButton(
                  width: 50,
                  icon: Icons.shuffle,
                  onPressed: () => toggleShuffle(),
                ),
              ],
            ),
            FlatButton(
                child: Icon(Icons.favorite), onPressed: () => addToLibrary()),
            Row(
              children: <Widget>[
                FlatButton(child: Text("seek to"), onPressed: () => seekTo()),
                FlatButton(
                    child: Text("seek to relative"),
                    onPressed: () => seekToRelative()),
              ],
            ),
            Divider(),
            Text("Crossfade State", style: TextStyle(fontSize: 16)),
            FlatButton(
                child: Text("getCrossfadeState"),
                onPressed: () => getCrossfadeState()),
            Text("Is enabled: ${crossfadeState?.isEnabled}"),
            Text("Duration: ${crossfadeState?.duration}"),
            Divider(),
            _connected
                ? spotifyImageWidget()
                : Text('Connect to see an image...'),
          ],
        ),
        _loading
            ? Container(
                color: Colors.black12,
                child: Center(child: CircularProgressIndicator()))
            : SizedBox(),
      ],
    );
  }

  Widget playerStateWidget() {
    return StreamBuilder<PlayerState>(
      stream: SpotifySdk.subscribePlayerState(),
      initialData: PlayerState(null, false, 1, 1, null, null),
      builder: (BuildContext context, AsyncSnapshot<PlayerState> snapshot) {
        if (snapshot.data != null && snapshot.data.track != null) {
          var playerState = snapshot.data;
          return Column(
            mainAxisAlignment: MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              Text(
                  "${playerState.track.name} by ${playerState.track.artist.name} from the album ${playerState.track.album.name} "),
              Text("Speed: ${playerState.playbackSpeed}"),
              Text(
                  "Progress: ${playerState.playbackPosition}ms/${playerState.track.duration}ms"),
              Text("IsPaused: ${playerState.isPaused}"),
              Text("Is Shuffling: ${playerState.playbackOptions.isShuffling}"),
              Text("RepeatMode: ${playerState.playbackOptions.repeatMode}"),
              Text("Image URI: ${playerState.track.imageUri.raw}"),
              Text(
                  "Is episode? ${playerState.track.isEpisode}. Is podcast?: ${playerState.track.isPodcast}"),
            ],
          );
        } else {
          return Center(
            child: Text("Not connected"),
          );
        }
      },
    );
  }

  Widget playerContextWidget() {
    return StreamBuilder<PlayerContext>(
      stream: SpotifySdk.subscribePlayerContext(),
      initialData: PlayerContext("", "", "", ""),
      builder: (BuildContext context, AsyncSnapshot<PlayerContext> snapshot) {
        if (snapshot.data != null && snapshot.data.uri != "") {
          var playerContext = snapshot.data;
          return Column(
            mainAxisAlignment: MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              Text("Title: ${playerContext.title}"),
              Text("Subtitle: ${playerContext.subtitle}"),
              Text("Type: ${playerContext.type}"),
              Text("Uri: ${playerContext.uri}"),
            ],
          );
        } else {
          return Center(
            child: Text("Not connected"),
          );
        }
      },
    );
  }

  Widget spotifyImageWidget() {
    return FutureBuilder(
        future: SpotifySdk.getImage(
          imageUri: ImageUri(
              'spotify:image:ab67616d0000b2736b4f6358fbf795b568e7952d'),
          dimension: ImageDimension.large,
        ),
        builder: (BuildContext context, AsyncSnapshot<Uint8List> snapshot) {
          if (snapshot.hasData) {
            return Image.memory(snapshot.data);
          } else if (snapshot.hasError) {
            setStatus(snapshot.error.toString());
            return SizedBox(
              width: ImageDimension.large.value.toDouble(),
              height: ImageDimension.large.value.toDouble(),
              child: Center(child: Text('Error getting image')),
            );
          } else {
            return SizedBox(
              width: ImageDimension.large.value.toDouble(),
              height: ImageDimension.large.value.toDouble(),
              child: Center(child: Text('Getting image...')),
            );
          }
        });
  }

  Future<void> logout() async {
    try {
      setState(() {
        _loading = true;
      });
      var result = await SpotifySdk.logout();
      setStatus(result ? "logout successful" : "logout failed");
      setState(() {
        _loading = false;
      });
    } on PlatformException catch (e) {
      setState(() {
        _loading = false;
      });
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setState(() {
        _loading = false;
      });
      setStatus("not implemented");
    }
  }

  Future<void> connectToSpotifyRemote() async {
    try {
      setState(() {
        _loading = true;
      });
      var result = await SpotifySdk.connectToSpotifyRemote(
          clientId: DotEnv().env['CLIENT_ID'],
          redirectUrl: DotEnv().env['REDIRECT_URL']);
      setStatus(result
          ? "connect to spotify successful"
          : "conntect to spotify failed");
      setState(() {
        _loading = false;
      });
    } on PlatformException catch (e) {
      setState(() {
        _loading = false;
      });
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setState(() {
        _loading = false;
      });
      setStatus("not implemented");
    }
  }

  Future<void> getAuthenticationToken() async {
    try {
      var authenticationToken = await SpotifySdk.getAuthenticationToken(
          clientId: DotEnv().env['CLIENT_ID'],
          redirectUrl: DotEnv().env['REDIRECT_URL'],
          scope:
              "app-remote-control, user-modify-playback-state, playlist-read-private, playlist-modify-public,user-read-currently-playing");
      setStatus("Got a token: $authenticationToken");
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future getPlayerState() async {
    try {
      return await SpotifySdk.getPlayerState();
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future getCrossfadeState() async {
    try {
      var crossfadeStateValue = await SpotifySdk.getCrossFadeState();
      setState(() {
        crossfadeState = crossfadeStateValue;
      });
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> queue() async {
    try {
      await SpotifySdk.queue(
          spotifyUri: "spotify:track:58kNJana4w5BIjlZE2wq5m");
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> toggleRepeat() async {
    try {
      await SpotifySdk.toggleRepeat();
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> toggleShuffle() async {
    try {
      await SpotifySdk.toggleShuffle();
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> play() async {
    try {
      await SpotifySdk.play(spotifyUri: "spotify:track:58kNJana4w5BIjlZE2wq5m");
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> pause() async {
    try {
      await SpotifySdk.pause();
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> resume() async {
    try {
      await SpotifySdk.resume();
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> skipNext() async {
    try {
      await SpotifySdk.skipNext();
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> skipPrevious() async {
    try {
      await SpotifySdk.skipPrevious();
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> seekTo() async {
    try {
      await SpotifySdk.seekTo(positionedMilliseconds: 20000);
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> seekToRelative() async {
    try {
      await SpotifySdk.seekToRelativePosition(relativeMilliseconds: 20000);
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  Future<void> addToLibrary() async {
    try {
      await SpotifySdk.addToLibrary(
          spotifyUri: "spotify:track:58kNJana4w5BIjlZE2wq5m");
    } on PlatformException catch (e) {
      setStatus(e.code, message: e.message);
    } on MissingPluginException {
      setStatus("not implemented");
    }
  }

  void setStatus(String code, {String message = ""}) {
    var text = message.isEmpty ? "" : " : $message";
    _logger.d("$code$text");
  }
}