togglePlaybackSpeed method
Implementation
Future<void> togglePlaybackSpeed() async {
List<double> allowedSpeeds = [0.25, 0.5, 0.75, 1.0, 1.25, 1.50, 1.75, 2.0];
if (allowedSpeeds.indexOf(_playbackSpeed.value) <
allowedSpeeds.length - 1) {
setPlaybackSpeed(
allowedSpeeds[allowedSpeeds.indexOf(_playbackSpeed.value) + 1]);
} else {
setPlaybackSpeed(allowedSpeeds[0]);
}
}