flutter/dev/benchmarks/macrobenchmarks/lib/src/heavy_grid_view.dart
Michael Goderbauer 5491c8c146
Auto-format Framework (#160545)
This auto-formats all *.dart files in the repository outside of the
`engine` subdirectory and enforces that these files stay formatted with
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**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
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---------

Co-authored-by: Kate Lovett <katelovett@google.com>
Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
2024-12-19 20:06:21 +00:00

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Dart

// 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.
import 'package:flutter/material.dart';
class HeavyGridViewPage extends StatelessWidget {
const HeavyGridViewPage({super.key});
@override
Widget build(BuildContext context) {
return GridView.builder(
itemCount: 1000,
gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 3),
itemBuilder: (BuildContext context, int index) => HeavyWidget(index),
).build(context);
}
}
class HeavyWidget extends StatelessWidget {
HeavyWidget(this.index) : super(key: ValueKey<int>(index));
final int index;
final List<int> _weight = List<int>.filled(1000000, 0);
@override
Widget build(BuildContext context) {
return SizedBox(width: 200, height: 200, child: Text('$index: ${_weight.length}'));
}
}