flutter/examples/material_gallery/lib/demo/toggle_controls_demo.dart
2016-01-19 17:02:32 -08:00

77 lines
2.2 KiB
Dart

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
class ToggleControlsDemo extends StatefulComponent {
_ToggleControlsDemoState createState() => new _ToggleControlsDemoState();
}
class _ToggleControlsDemoState extends State<ToggleControlsDemo> {
bool _checkboxValue = false;
int _radioValue = 0;
bool _switchValue = false;
void _setCheckboxValue(bool value) {
setState(() {
_checkboxValue = value;
});
}
void _setRadioValue(int value) {
setState(() {
_radioValue = value;
});
}
void _setSwitchValue(bool value) {
setState(() {
_switchValue = value;
});
}
Widget build(BuildContext context) {
return new Scaffold(
toolBar: new ToolBar(center: new Text("Selection Controls")),
body: new Column(
children: <Widget>[
new Row(
children: <Widget>[
new Checkbox(value: _checkboxValue, onChanged: _setCheckboxValue),
new Checkbox(value: false), // Disabled
new Checkbox(value: true), // Disabled
],
justifyContent: FlexJustifyContent.spaceAround
),
new Row(
children: <int>[0, 1, 2].map((int i) {
return new Radio<int>(
value: i,
groupValue: _radioValue,
onChanged: _setRadioValue
);
}).toList(),
justifyContent: FlexJustifyContent.spaceAround
),
new Row(
children: <int>[0, 1].map((int i) {
return new Radio<int>(value: i, groupValue: 0); // Disabled
}).toList(),
justifyContent: FlexJustifyContent.spaceAround
),
new Row(
children: <Widget>[
new Switch(value: _switchValue, onChanged: _setSwitchValue),
new Switch(value: false), // Disabled
new Switch(value: true), // Disabled
],
justifyContent: FlexJustifyContent.spaceAround
),
],
justifyContent: FlexJustifyContent.spaceAround
)
);
}
}