mirror of
https://github.com/flutter/flutter.git
synced 2025-06-03 00:51:18 +00:00
11e0a725d4
This is a re-land of #31561, after fixing performance regressions. Added change listening to the MouseTracker so that the Listener and tooltip can react to whether or not a mouse is connected at all. Added a change check to make sure Listener only repaints when something changed. Fixes #22817
31 lines
909 B
Dart
31 lines
909 B
Dart
// Copyright 2019 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 'dart:ui';
|
|
|
|
import '../common.dart';
|
|
|
|
const int _kNumIters = 10000;
|
|
|
|
void main() {
|
|
assert(false, "Don't run benchmarks in checked mode! Use 'flutter run --release'.");
|
|
final Stopwatch watch = Stopwatch();
|
|
print('RRect contains benchmark...');
|
|
watch.start();
|
|
for (int i = 0; i < _kNumIters; i += 1) {
|
|
final RRect outter = RRect.fromLTRBR(10, 10, 20, 20, const Radius.circular(2.0));
|
|
outter.contains(const Offset(15, 15));
|
|
}
|
|
watch.stop();
|
|
|
|
final BenchmarkResultPrinter printer = BenchmarkResultPrinter();
|
|
printer.addResult(
|
|
description: 'RRect contains',
|
|
value: watch.elapsedMicroseconds / _kNumIters,
|
|
unit: 'µs per iteration',
|
|
name: 'rrect_contains_iteration',
|
|
);
|
|
printer.printToStdout();
|
|
}
|