-
Notifications
You must be signed in to change notification settings - Fork 29.7k
Closed
Labels
P2Important issues not at the top of the work listImportant issues not at the top of the work listc: performanceRelates to speed or footprint issues (see "perf:" labels)Relates to speed or footprint issues (see "perf:" labels)frameworkflutter/packages/flutter repository. See also f: labels.flutter/packages/flutter repository. See also f: labels.
Description
Hello! Flutter Developers
Details
I tried to show so many (at least 50>) RawChips on one screen like below. But the raster performance delay was too high.
But after many tries, I found that RawChip::avatar is the main cause of this problem.
So, I deleted the avatar property and reimplemented the component with just the label as follows.
Then the raster time disappears completely.
This code snippet is minimal example of this issue!
import 'package:flutter/material.dart';
void main() {
runApp(const MaterialApp(home: MyApp()));
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
body: Material(
child: ListView.builder(
itemBuilder: (context, index) {
return item();
},
),
),
);
}
item() {
return Wrap(
children: [for (var i = 1; i <= 100; i++) chip(i.toString())],
);
}
chip(String index) {
return RawChip(
avatar: Text('A'),
label: Text(index),
);
}
}The above source code shows even more strange performance.
Thank you
Logs
[√] Flutter (Channel stable, 3.3.3, on Microsoft Windows [Version 10.0.22000.1098], locale ko-KR)
• Flutter version 3.3.3 on channel stable at C:\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 18a827f393 (3 weeks ago), 2022-09-28 10:03:14 -0700
• Engine revision 5c984c26eb
• Dart version 2.18.2
• DevTools version 2.15.0
[!] Android toolchain - develop for Android devices (Android SDK version 32.1.0-rc1)
• Android SDK at C:\Users\\AppData\Local\Android\sdk
X cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
X Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
[√] Chrome - develop for the web
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
[√] Visual Studio - develop for Windows (Visual Studio Community 2022 17.1.5)
• Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Community
• Visual Studio Community 2022 version 17.1.32414.318
• Windows 10 SDK version 10.0.19041.0
[√] Android Studio (version 2021.1)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin can be installed from:
https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 11.0.11+9-b60-7590822)
[√] IntelliJ IDEA Ultimate Edition (version 2022.1)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA 2022.1
• Flutter plugin can be installed from:
https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
https://plugins.jetbrains.com/plugin/6351-dart
[√] VS Code (version 1.72.2)
• VS Code at C:\Users\\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.50.0
[√] Connected device (4 available)
• sdk gphone64 x86 64 (mobile) • emulator-5554 • android-x64 • Android 12 (API 32) (emulator)
• Windows (desktop) • windows • windows-x64 • Microsoft Windows [Version 10.0.22000.1098]
• Chrome (web) • chrome • web-javascript • Google Chrome 106.0.5249.119
• Edge (web) • edge • web-javascript • Microsoft Edge 106.0.1370.47
[√] HTTP Host Availability
• All required HTTP hosts are available
! Doctor found issues in 1 category.
Metadata
Metadata
Assignees
Labels
P2Important issues not at the top of the work listImportant issues not at the top of the work listc: performanceRelates to speed or footprint issues (see "perf:" labels)Relates to speed or footprint issues (see "perf:" labels)frameworkflutter/packages/flutter repository. See also f: labels.flutter/packages/flutter repository. See also f: labels.



