freezer/lib/ui/player_bar.dart

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import 'package:audio_service/audio_service.dart';
import 'package:flutter/material.dart';
import 'package:freezer/settings.dart';
import '../api/player.dart';
import 'cached_image.dart';
import 'player_screen.dart';
class PlayerBar extends StatelessWidget {
double get progress {
if (AudioService.playbackState == null) return 0.0;
if (AudioService.currentMediaItem == null) return 0.0;
if (AudioService.currentMediaItem.duration.inSeconds == 0) return 0.0; //Division by 0
return AudioService.playbackState.currentPosition.inSeconds / AudioService.currentMediaItem.duration.inSeconds;
}
double iconSize = 32;
@override
Widget build(BuildContext context) {
return StreamBuilder(
stream: Stream.periodic(Duration(milliseconds: 250)),
builder: (BuildContext context, AsyncSnapshot snapshot) {
if (AudioService.currentMediaItem == null) return Container(width: 0, height: 0,);
return Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
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Container(
color: Theme.of(context).bottomAppBarColor,
child: ListTile(
onTap: () => Navigator.of(context).push(MaterialPageRoute(builder: (BuildContext context) => PlayerScreen())),
leading: CachedImage(
width: 50,
height: 50,
url: AudioService.currentMediaItem.extras['thumb'] ?? AudioService.currentMediaItem.artUri,
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),
title: Text(
AudioService.currentMediaItem.displayTitle,
overflow: TextOverflow.clip,
maxLines: 1,
),
subtitle: Text(
AudioService.currentMediaItem.displaySubtitle,
overflow: TextOverflow.clip,
maxLines: 1,
),
trailing: Row(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
PrevNextButton(iconSize, prev: true, hidePrev: true,),
PlayPauseButton(iconSize),
PrevNextButton(iconSize)
],
)
),
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),
Container(
height: 3.0,
child: LinearProgressIndicator(
backgroundColor: Theme.of(context).primaryColor.withOpacity(0.1),
value: progress,
),
)
],
);
},
);
}
}
class PrevNextButton extends StatelessWidget {
final double size;
final bool prev;
final bool hidePrev;
int i;
PrevNextButton(this.size, {this.prev = false, this.hidePrev = false});
@override
Widget build(BuildContext context) {
if (!prev) {
if (playerHelper.queueIndex == (AudioService.queue??[]).length - 1) {
return IconButton(
icon: Icon(Icons.skip_next),
iconSize: size,
onPressed: null,
);
}
return IconButton(
icon: Icon(Icons.skip_next),
iconSize: size,
onPressed: () => AudioService.skipToNext(),
);
}
if (prev) {
if (i == 0) {
if (hidePrev) {
return Container(height: 0, width: 0,);
}
return IconButton(
icon: Icon(Icons.skip_previous),
iconSize: size,
onPressed: null,
);
}
return IconButton(
icon: Icon(Icons.skip_previous),
iconSize: size,
onPressed: () => AudioService.skipToPrevious(),
);
}
return Container();
}
}
class PlayPauseButton extends StatelessWidget {
final double size;
PlayPauseButton(this.size);
@override
Widget build(BuildContext context) {
return StreamBuilder(
stream: AudioService.playbackStateStream,
builder: (context, snapshot) {
//Playing
if (AudioService.playbackState?.playing??false) {
return IconButton(
iconSize: this.size,
icon: Icon(Icons.pause),
onPressed: () => AudioService.pause()
);
}
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//Paused
if ((!AudioService.playbackState.playing &&
AudioService.playbackState.processingState == AudioProcessingState.ready) ||
//None state (stopped)
AudioService.playbackState.processingState == AudioProcessingState.none) {
return IconButton(
iconSize: this.size,
icon: Icon(Icons.play_arrow),
onPressed: () => AudioService.play()
);
}
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switch (AudioService.playbackState.processingState) {
//Stopped/Error
case AudioProcessingState.error:
case AudioProcessingState.none:
case AudioProcessingState.stopped:
return Container(width: this.size, height: this.size);
//Loading, connecting, rewinding...
default:
return Container(
width: this.size,
height: this.size,
child: CircularProgressIndicator(),
);
}
},
);
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}
}