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Add player skeleton and playback service

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This introduces a dependency on audio_service and implements the
playback service using that package. The UI was adapted to the new
interface.
This commit is contained in:
Elias Projahn 2020-04-18 13:50:38 +02:00
parent e0fc60f9eb
commit 3471fcf78b
31 changed files with 321 additions and 44 deletions
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35
lib/backend.dart
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@ -8,10 +8,10 @@ import 'package:moor/moor.dart';
import 'package:moor_ffi/moor_ffi.dart';
import 'package:path/path.dart' as p;
import 'package:path_provider/path_provider.dart' as pp;
import 'package:rxdart/rxdart.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'database.dart';
import 'player.dart';
// The following code was taken from
// https://moor.simonbinder.eu/docs/advanced-features/isolates/ and just
@ -81,9 +81,7 @@ class Backend extends StatefulWidget {
class BackendState extends State<Backend> {
static const _platform = MethodChannel('de.johrpan.musicus/platform');
final playerActive = BehaviorSubject.seeded(false);
final playing = BehaviorSubject.seeded(false);
final position = BehaviorSubject.seeded(0.0);
final player = Player();
BackendStatus status = BackendStatus.loading;
Database db;
@ -109,11 +107,12 @@ class BackendState extends State<Backend> {
Future<void> _load() async {
_moorIsolate = await _createMoorIsolate();
final dbConnection = await _moorIsolate.connect();
player.setup();
db = Database.connect(dbConnection);
_shPref = await SharedPreferences.getInstance();
musicLibraryUri = _shPref.getString('musicLibraryUri');
_loadMusicLibrary();
}
@ -142,32 +141,6 @@ class BackendState extends State<Backend> {
}
}
void startPlayer() {
playerActive.add(true);
}
void playPause() {
playing.add(!playing.value);
if (playing.value) {
simulatePlay();
}
}
void seekTo(double pos) {
position.add(pos);
}
Future<void> simulatePlay() async {
while (playing.value) {
await Future.delayed(Duration(milliseconds: 200));
if (position.value >= 0.99) {
position.add(0.0);
} else {
position.add(position.value + 0.01);
}
}
}
@override
void dispose() {
super.dispose();