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volume_settings.dart
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/// Flutter package imports
import 'package:flutter/material.dart';
/// Gauge imports
import 'package:syncfusion_flutter_gauges/gauges.dart';
/// Local imports
import '../../../model/sample_view.dart';
/// Renders the linear gauge volume settings showcase sample.
class VolumeSettings extends SampleView {
/// Creates the linear gauge volume settings showcase sample.
const VolumeSettings(Key key) : super(key: key);
@override
_VolumeSettingsState createState() => _VolumeSettingsState();
}
/// State class of volume settings sample.
class _VolumeSettingsState extends SampleViewState {
_VolumeSettingsState();
double _musicValue = 100.0;
double _ringValue = 85.0;
double _alarmValue = 65.0;
@override
Widget build(BuildContext context) {
final Orientation orientation = MediaQuery.of(context).orientation;
return isCardView
? _buildVolumeControl()
: Center(
child: SizedBox(
height:
orientation == Orientation.landscape
? MediaQuery.of(context).size.height / 2
: MediaQuery.of(context).size.height / 3,
child: _buildVolumeControl(),
),
);
}
/// Returns the volume settings.
Widget _buildVolumeControl() {
final Brightness brightness = Theme.of(context).brightness;
return Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
SizedBox(
height: isCardView ? 205 : 240,
child: ClipRRect(
borderRadius: const BorderRadius.all(Radius.circular(20.0)),
child: SfLinearGauge(
orientation: LinearGaugeOrientation.vertical,
interval: 20.0,
showTicks: false,
showLabels: false,
minorTicksPerInterval: 0,
axisTrackStyle: LinearAxisTrackStyle(
thickness: 40,
edgeStyle: LinearEdgeStyle.bothCurve,
borderWidth: 1,
borderColor:
brightness == Brightness.dark
? const Color(0xff898989)
: Colors.grey[350],
color:
brightness == Brightness.dark
? Colors.transparent
: Colors.grey[350],
),
barPointers: <LinearBarPointer>[
LinearBarPointer(
enableAnimation: false,
value: _musicValue,
thickness: 40,
edgeStyle: LinearEdgeStyle.bothCurve,
color: Colors.blueAccent,
),
],
markerPointers: <LinearMarkerPointer>[
LinearWidgetPointer(
enableAnimation: false,
markerAlignment: LinearMarkerAlignment.end,
value: 100,
child: SizedBox(
height: 25,
child: Text(_musicValue.toStringAsFixed(0) + '%'),
),
),
LinearWidgetPointer(
value: 5,
enableAnimation: false,
markerAlignment: LinearMarkerAlignment.end,
child: GestureDetector(
onTap: () {
setState(() {
_musicValue = 0;
});
},
child: SizedBox(
height: 30,
width: 30,
child: Center(
child: Icon(
_musicValue > 0 ? Icons.music_note : Icons.music_off,
color: const Color(0xffFFFFFF),
),
),
),
),
),
LinearShapePointer(
enableAnimation: false,
value: _musicValue - 20,
onChanged: (dynamic value) {
setState(() {
_musicValue = value as double;
});
},
color: Colors.transparent,
width: 40,
markerAlignment: LinearMarkerAlignment.end,
position: LinearElementPosition.cross,
shapeType: LinearShapePointerType.circle,
height: 40,
),
],
),
),
),
const SizedBox(width: 25),
SizedBox(
height: isCardView ? 205 : 240,
child: ClipRRect(
borderRadius: const BorderRadius.all(Radius.circular(20.0)),
child: SfLinearGauge(
orientation: LinearGaugeOrientation.vertical,
interval: 20.0,
showTicks: false,
showLabels: false,
minorTicksPerInterval: 0,
axisTrackStyle: LinearAxisTrackStyle(
thickness: 40,
edgeStyle: LinearEdgeStyle.bothCurve,
borderWidth: 1,
borderColor:
brightness == Brightness.dark
? const Color(0xff898989)
: Colors.grey[350],
color:
brightness == Brightness.dark
? Colors.transparent
: Colors.grey[350],
),
barPointers: <LinearBarPointer>[
LinearBarPointer(
enableAnimation: false,
value: _ringValue,
thickness: 40,
edgeStyle: LinearEdgeStyle.bothCurve,
color: Colors.blueAccent,
),
],
markerPointers: <LinearMarkerPointer>[
LinearWidgetPointer(
value: 5,
enableAnimation: false,
markerAlignment: LinearMarkerAlignment.end,
child: SizedBox(
height: 30,
width: 30,
child: GestureDetector(
onTap: () {
setState(() {
_ringValue = 0;
});
},
child: Center(
child: Icon(
_ringValue > 0
? Icons.notifications
: Icons.notifications_off,
color: const Color(0xffFFFFFF),
),
),
),
),
),
LinearWidgetPointer(
markerAlignment: LinearMarkerAlignment.end,
value: 100,
enableAnimation: false,
child: SizedBox(
height: 25,
child: Text(_ringValue.toStringAsFixed(0) + '%'),
),
),
LinearShapePointer(
value: _ringValue - 20,
enableAnimation: false,
onChanged: (dynamic value) {
setState(() {
_ringValue = value as double;
});
},
color: Colors.transparent,
width: 40,
position: LinearElementPosition.cross,
shapeType: LinearShapePointerType.circle,
markerAlignment: LinearMarkerAlignment.end,
height: 40,
),
],
),
),
),
const SizedBox(width: 25),
SizedBox(
height: isCardView ? 205 : 240,
child: ClipRRect(
borderRadius: BorderRadius.circular(20.0),
child: SfLinearGauge(
orientation: LinearGaugeOrientation.vertical,
interval: 20.0,
showTicks: false,
showLabels: false,
minorTicksPerInterval: 0,
axisTrackStyle: LinearAxisTrackStyle(
thickness: 40,
edgeStyle: LinearEdgeStyle.bothCurve,
borderWidth: 1,
borderColor:
brightness == Brightness.dark
? const Color(0xff898989)
: Colors.grey[350],
color:
brightness == Brightness.dark
? Colors.transparent
: Colors.grey[350],
),
barPointers: <LinearBarPointer>[
LinearBarPointer(
enableAnimation: false,
value: _alarmValue,
thickness: 40,
edgeStyle: LinearEdgeStyle.bothCurve,
color: Colors.blueAccent,
),
],
markerPointers: <LinearMarkerPointer>[
LinearWidgetPointer(
enableAnimation: false,
markerAlignment: LinearMarkerAlignment.end,
value: 100,
child: SizedBox(
height: 25,
child: Text(_alarmValue.toStringAsFixed(0) + '%'),
),
),
LinearWidgetPointer(
value: 5,
enableAnimation: false,
markerAlignment: LinearMarkerAlignment.end,
child: GestureDetector(
onTap: () {
setState(() {
_alarmValue = 0;
});
},
child: SizedBox(
height: 30,
width: 30,
child: Center(
child: Icon(
_alarmValue > 0
? Icons.access_alarm
: Icons.alarm_off,
color: const Color(0xffFFFFFF),
),
),
),
),
),
LinearShapePointer(
value: _alarmValue - 20,
enableAnimation: false,
onChanged: (dynamic value) {
setState(() {
_alarmValue = value as double;
});
},
color: Colors.transparent,
width: 40,
position: LinearElementPosition.cross,
shapeType: LinearShapePointerType.circle,
markerAlignment: LinearMarkerAlignment.end,
height: 40,
),
],
),
),
),
],
);
}
}