WidgetsBinding.instance.platformDispatcher.displays.first.size returns Size(0.0, 0.0) zero on Windows #160660
Description
Steps to reproduce
Open a new Flutter project (default increment counter example)
Add the following code:
Size _screenSize = WidgetsBinding.instance.platformDispatcher.displays.first.size;
print("display: ${_screenSize}");
Run the project on Windows 11.
Only one monitor is connected to the device, with a resolution of 3440x1440 pixel and a refresh rate of 100Hz.
Expected results
display: Size(3440.0, 1440.0)
Output on Chrome
Actual results
display: Size(0.0, 0.0)
Output on Windows 11
Version 10.0.22631 Build 22631
Code sample
void _incrementCounter() {
setState(() {
_counter++;
Size _screenSize = WidgetsBinding.instance.platformDispatcher.displays.first.size;
print("display: ${_screenSize}");
});
}
Screenshots or Video
Screenshots / Video demonstration
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Logs
Additional logs printed by:
Size _screenSize = WidgetsBinding.instance.platformDispatcher.displays.first.size;
print("display: ${_screenSize}");
print("display: ${WidgetsBinding.instance.platformDispatcher.displays}");
print("display: ${WidgetsBinding.instance.platformDispatcher.displays.first}");
flutter: display: Size(0.0, 0.0)
flutter: display: (Display(id: 0, size: Size(0.0, 0.0), devicePixelRatio: 0.0, refreshRate: 99.9750062484379))
flutter: display: Display(id: 0, size: Size(0.0, 0.0), devicePixelRatio: 0.0, refreshRate: 99.9750062484379)
actual refresh rate of the monitor is 100Hz
Flutter Doctor output
> flutter doctor -v
[√] Flutter (Channel stable, 3.22.3, on Microsoft Windows [Version 10.0.22631.4602], locale en-DE)
• Flutter version 3.22.3 on channel stable at C:\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision b0850beeb2 (5 months ago), 2024-07-16 21:43:41 -0700
• Engine revision 235db911ba
• Dart version 3.4.4
• DevTools version 2.34.3
[√] Windows Version (Installed version of Windows is version 10 or higher)
[√] Android toolchain - develop for Android devices (Android SDK version 33.0.2)
• Android SDK at C:\Users\user\AppData\Local\Android\sdk
• Platform android-33-ext5, build-tools 33.0.2
• Java binary at: C:\Program Files\Android\Android Studio\jbr\bin\java
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-9505619)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.9.0)
• Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Community
• Visual Studio Community 2022 version 17.9.34607.119
• Windows 10 SDK version 10.0.22000.0
[√] Android Studio (version 2022.1)
• 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 11.0.15+0-b2043.56-9505619)
[√] IntelliJ IDEA Community Edition (version 2022.1)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 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 1.95.3)
• VS Code at C:\Users\user\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.102.0
[√] Connected device (3 available)
• Windows (desktop) • windows • windows-x64 • Microsoft Windows [Version 10.0.22631.4602]
• Chrome (web) • chrome • web-javascript • Google Chrome 124.0.6367.207
• Edge (web) • edge • web-javascript • Microsoft Edge 131.0.2903.99
[√] Network resources
• All expected network resources are available.
• No issues found!