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38 lines
1022 B
38 lines
1022 B
// Copyright 2023 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 'package:flutter/material.dart';
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import 'ticking_builder.dart';
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typedef ReactiveWidgetBuilder = Widget Function(
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BuildContext context, double time, Size bounds);
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/// ReactiveWidget forces repainting a subtree on
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/// each frame for ambient animation.
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class ReactiveWidget extends StatefulWidget {
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const ReactiveWidget({
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super.key,
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required this.builder,
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});
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final ReactiveWidgetBuilder builder;
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@override
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State<ReactiveWidget> createState() => _ReactiveWidgetState();
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}
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class _ReactiveWidgetState extends State<ReactiveWidget> {
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@override
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Widget build(BuildContext context) {
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return TickingBuilder(
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builder: (_, time) {
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return LayoutBuilder(
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builder: (context, constraints) {
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return widget.builder(context, time, constraints.biggest);
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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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