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2999d738b8
I got carried away with Gemini and basically rewrote CI and the release process for the new LLM reality. This work was largely completed by Gemini. - Bump all SDK versions to the current beta (3.9.0-0) - Run `flutter channel beta` - Wrote `ci_script.dart` to replace the bash scripts - Converted repository to pub workspace #2499 - Added llm.md and release.md - Added redirect for deprecated Samples Index ## Pre-launch Checklist - [x] I read the [Flutter Style Guide] _recently_, and have followed its advice. - [x] I signed the [CLA]. - [x] I read the [Contributors Guide]. - [x] I have added sample code updates to the [changelog]. - [x] I updated/added relevant documentation (doc comments with `///`).
74 lines
2.0 KiB
Dart
74 lines
2.0 KiB
Dart
// Copyright 2019 The Flutter team. 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 'package:flutter/material.dart';
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// Refer to the AnimatedWidget docs here - https://api.flutter.dev/flutter/widgets/AnimatedWidget-class.html
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// for examples of other common animated widgets.
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class FadeTransitionDemo extends StatefulWidget {
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const FadeTransitionDemo({super.key});
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static const String routeName = 'basics/fade_transition';
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@override
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State<FadeTransitionDemo> createState() => _FadeTransitionDemoState();
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}
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class _FadeTransitionDemoState extends State<FadeTransitionDemo>
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with SingleTickerProviderStateMixin {
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late final AnimationController _controller;
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late final Animation<double> _animation;
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late final CurvedAnimation _curve;
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@override
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void initState() {
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super.initState();
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_controller = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 500),
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);
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_curve = CurvedAnimation(parent: _controller, curve: Curves.easeIn);
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_animation = Tween(begin: 1.0, end: 0.0).animate(_curve);
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}
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@override
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void dispose() {
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_controller.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 Scaffold(
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appBar: AppBar(title: const Text('Fade Transition')),
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body: Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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FadeTransition(
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opacity: _animation,
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child: const Icon(
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Icons.star,
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color: Colors.amber,
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size: 300,
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),
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),
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ElevatedButton(
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child: const Text('animate'),
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onPressed: () => setState(() {
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_controller
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.animateTo(1.0)
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.then<TickerFuture>(
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(value) => _controller.animateBack(0.0),
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);
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}),
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),
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],
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),
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),
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);
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}
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}
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