77 lines
2.0 KiB
Dart
77 lines
2.0 KiB
Dart
import 'package:audioplayers/audioplayers.dart';
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import 'package:flutter/foundation.dart';
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abstract interface class ExerciseStepAudioCuePlayer {
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Future<void> playShortCountdownBeep();
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Future<void> playLongCompletionBeep();
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Future<void> dispose();
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}
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final class AudioplayersExerciseStepAudioCuePlayer
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implements ExerciseStepAudioCuePlayer {
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AudioplayersExerciseStepAudioCuePlayer();
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final AudioPlayer _player = AudioPlayer();
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late final Future<void> _audioContextReady = _configureAudioContext();
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@override
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Future<void> playShortCountdownBeep() {
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return _play('audio/step_countdown_short.wav');
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}
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@override
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Future<void> playLongCompletionBeep() {
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return _play('audio/step_completion_long.wav');
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}
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Future<void> _play(String assetPath) async {
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await _audioContextReady;
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await _player.stop();
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await _player.play(AssetSource(assetPath));
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}
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Future<void> _configureAudioContext() async {
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try {
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await _player.setAudioContext(_stepCueAudioContext);
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await _player.setPlayerMode(PlayerMode.lowLatency);
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await _player.setReleaseMode(ReleaseMode.stop);
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await _player.setVolume(1);
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} on Object catch (error) {
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debugPrint('Audio cue context ignored: $error');
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}
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}
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@override
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Future<void> dispose() {
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return _player.dispose();
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}
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}
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final _stepCueAudioContext = AudioContext(
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android: const AudioContextAndroid(
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contentType: AndroidContentType.sonification,
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usageType: AndroidUsageType.assistanceSonification,
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audioFocus: AndroidAudioFocus.none,
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),
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iOS: AudioContextIOS(
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category: AVAudioSessionCategory.playback,
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options: const {AVAudioSessionOptions.mixWithOthers},
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),
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);
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final class NoOpExerciseStepAudioCuePlayer
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implements ExerciseStepAudioCuePlayer {
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const NoOpExerciseStepAudioCuePlayer();
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@override
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Future<void> playShortCountdownBeep() async {}
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@override
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Future<void> playLongCompletionBeep() async {}
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@override
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Future<void> dispose() async {}
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}
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