mirror of
https://github.com/flutter/flutter.git
synced 2025-06-03 00:51:18 +00:00
8eb5cb7dc0
- Check memory usage in release builds, not profile. - Use multiple runs and average the results.
38 lines
1.2 KiB
Dart
38 lines
1.2 KiB
Dart
// Copyright 2016 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
// See //dev/devicelab/bin/tasks/flutter_gallery__memory_nav.dart
|
|
|
|
import 'dart:async';
|
|
|
|
import 'package:flutter/material.dart';
|
|
import 'package:flutter/scheduler.dart';
|
|
import 'package:flutter_gallery/gallery/app.dart' show GalleryApp;
|
|
import 'package:flutter_test/flutter_test.dart';
|
|
|
|
Future<void> endOfAnimation() async {
|
|
do {
|
|
await SchedulerBinding.instance.endOfFrame;
|
|
} while (SchedulerBinding.instance.hasScheduledFrame);
|
|
}
|
|
|
|
int iteration = 0;
|
|
|
|
class LifecycleObserver extends WidgetsBindingObserver {
|
|
@override
|
|
void didChangeAppLifecycleState(AppLifecycleState state) {
|
|
debugPrint('==== MEMORY BENCHMARK ==== $state ====');
|
|
debugPrint('This was lifecycle event number $iteration in this instance');
|
|
}
|
|
}
|
|
|
|
Future<void> main() async {
|
|
MaterialPageRoute.debugEnableFadingRoutes = true; // ignore: deprecated_member_use
|
|
runApp(const GalleryApp());
|
|
await endOfAnimation();
|
|
await new Future<Null>.delayed(const Duration(milliseconds: 50));
|
|
debugPrint('==== MEMORY BENCHMARK ==== READY ====');
|
|
WidgetsBinding.instance.addObserver(new LifecycleObserver());
|
|
}
|