5491c8c146
This auto-formats all *.dart files in the repository outside of the `engine` subdirectory and enforces that these files stay formatted with a presubmit check. **Reviewers:** Please carefully review all the commits except for the one titled "formatted". The "formatted" commit was auto-generated by running `dev/tools/format.sh -a -f`. The other commits were hand-crafted to prepare the repo for the formatting change. I recommend reviewing the commits one-by-one via the "Commits" tab and avoiding Github's "Files changed" tab as it will likely slow down your browser because of the size of this PR. --------- Co-authored-by: Kate Lovett <katelovett@google.com> Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
57 lines
1.6 KiB
Dart
57 lines
1.6 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:ui';
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import 'package:flutter/material.dart';
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class SlidersPage extends StatefulWidget {
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const SlidersPage({super.key});
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@override
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State<SlidersPage> createState() => _SlidersPageState();
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}
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class _SlidersPageState extends State<SlidersPage> with TickerProviderStateMixin {
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late AnimationController _sliderController;
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late Animation<double> _sliderAnimation;
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double _sliderValue = 0.0;
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RangeValues _rangeSliderValues = const RangeValues(0.0, 1.0);
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@override
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void initState() {
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super.initState();
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_sliderController = AnimationController(duration: const Duration(seconds: 1), vsync: this)
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..repeat();
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_sliderAnimation = Tween<double>(begin: 0, end: 1).animate(_sliderController)..addListener(() {
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setState(() {
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_sliderValue = _sliderAnimation.value;
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_rangeSliderValues = RangeValues(
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clampDouble(_sliderAnimation.value, 0, 0.45),
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1.0 - clampDouble(_sliderAnimation.value, 0, 0.45),
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);
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});
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});
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}
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@override
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void dispose() {
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_sliderController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Material(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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Slider(value: _sliderValue, onChanged: (double value) {}),
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RangeSlider(values: _rangeSliderValues, onChanged: (RangeValues values) {}),
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],
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),
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);
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}
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}
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