499c84cbf8
Initial tap is missing sometimes; either its never delivered or it is delivered before gesture controller is hooked up. 1: Update the two perf tests to output when TAPPED is received 2: Update the MemoryTest to keep tapping while waiting for TAPPED Tested on devicelab: * setting iterations=1 * removing the timeout before READY * running tests in a while loop Before this change, you could get the test to hang often. After this change you'll see "tapping device... [x]" where x is the counter. Fixes #150096
70 lines
2.3 KiB
Dart
70 lines
2.3 KiB
Dart
// Copyright 2014 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 'dart:async';
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import 'package:complex_layout/src/app.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/scheduler.dart';
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import 'package:flutter_test/flutter_test.dart';
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/// The speed, in pixels per second, that the drag gestures should end with.
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const double speed = 1500.0;
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/// The number of down drags and the number of up drags. The total number of
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/// gestures is twice this number.
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const int maxIterations = 4;
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/// The time that is allowed between gestures for the fling effect to settle.
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const Duration pauses = Duration(milliseconds: 500);
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Future<void> main() async {
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final Completer<void> ready = Completer<void>();
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runApp(GestureDetector(
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onTap: () {
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debugPrint('==== MEMORY BENCHMARK ==== TAPPED ====');
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ready.complete();
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},
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behavior: HitTestBehavior.opaque,
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child: const IgnorePointer(
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child: ComplexLayoutApp(),
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),
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));
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await SchedulerBinding.instance.endOfFrame;
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debugPrint('==== MEMORY BENCHMARK ==== READY ====');
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await ready.future; // waits for tap sent by devicelab task
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debugPrint('Continuing...');
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// Wait out any errant taps due to synchronization
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await Future<void>.delayed(const Duration(milliseconds: 200));
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// remove onTap handler, enable pointer events for app
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runApp(GestureDetector(
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child: const IgnorePointer(
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ignoring: false,
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child: ComplexLayoutApp(),
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),
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));
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await SchedulerBinding.instance.endOfFrame;
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final WidgetController controller = LiveWidgetController(WidgetsBinding.instance);
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// Scroll down
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for (int iteration = 0; iteration < maxIterations; iteration += 1) {
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debugPrint('Scroll down... $iteration/$maxIterations');
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await controller.fling(find.byType(ListView), const Offset(0.0, -700.0), speed);
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await Future<void>.delayed(pauses);
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}
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// Scroll up
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for (int iteration = 0; iteration < maxIterations; iteration += 1) {
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debugPrint('Scroll up... $iteration/$maxIterations');
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await controller.fling(find.byType(ListView), const Offset(0.0, 300.0), speed);
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await Future<void>.delayed(pauses);
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}
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debugPrint('==== MEMORY BENCHMARK ==== DONE ====');
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}
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