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// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/// Flutter code sample for [CupertinoTimerPicker].
import 'package:flutter/cupertino.dart';
void main() => runApp(const TimerPickerApp());
class TimerPickerApp extends StatelessWidget {
const TimerPickerApp({super.key});
@override
Widget build(BuildContext context) {
return const CupertinoApp(
theme: CupertinoThemeData(brightness: Brightness.light),
home: TimerPickerExample(),
);
}
}
class TimerPickerExample extends StatefulWidget {
const TimerPickerExample({super.key});
@override
State<TimerPickerExample> createState() => _TimerPickerExampleState();
}
class _TimerPickerExampleState extends State<TimerPickerExample> {
Duration duration = const Duration(hours: 1, minutes: 23);
// This shows a CupertinoModalPopup with a reasonable fixed height which hosts
// a CupertinoTimerPicker.
void _showDialog(Widget child) {
showCupertinoModalPopup<void>(
context: context,
builder: (BuildContext context) => Container(
height: 216,
padding: const EdgeInsets.only(top: 6.0),
// The bottom margin is provided to align the popup above the system
// navigation bar.
margin: EdgeInsets.only(
bottom: MediaQuery.of(context).viewInsets.bottom,
),
// Provide a background color for the popup.
color: CupertinoColors.systemBackground.resolveFrom(context),
// Use a SafeArea widget to avoid system overlaps.
child: SafeArea(
top: false,
child: child,
),
)
);
}
@override
Widget build(BuildContext context) {
return CupertinoPageScaffold(
navigationBar: const CupertinoNavigationBar(
middle: Text('CupertinoTimerPicker Sample'),
),
child: DefaultTextStyle(
style: TextStyle(
color: CupertinoColors.label.resolveFrom(context),
fontSize: 22.0,
),
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
_TimerPickerItem(
children: <Widget>[
const Text('Timer'),
CupertinoButton(
// Display a CupertinoTimerPicker with hour/minute mode.
onPressed: () => _showDialog(
CupertinoTimerPicker(
mode: CupertinoTimerPickerMode.hm,
initialTimerDuration: duration,
// This is called when the user changes the timer's
// duration.
onTimerDurationChanged: (Duration newDuration) {
setState(() => duration = newDuration);
},
),
),
// In this example, the timer's value is formatted manually.
// You can use the intl package to format the value based on
// the user's locale settings.
child: Text('$duration',
style: const TextStyle(
fontSize: 22.0,
),
),
),
],
),
],
),
),
),
);
}
}
// This class simply decorates a row of widgets.
class _TimerPickerItem extends StatelessWidget {
const _TimerPickerItem({required this.children});
final List<Widget> children;
@override
Widget build(BuildContext context) {
return DecoratedBox(
decoration: const BoxDecoration(
border: Border(
top: BorderSide(
color: CupertinoColors.inactiveGray,
width: 0.0,
),
bottom: BorderSide(
color: CupertinoColors.inactiveGray,
width: 0.0,
),
),
),
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 16.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: children,
),
),
);
}
}