[Windows] themeMode.system does not pick up on the Windows system theme #54612
Description
Steps to reproduce:
- Create a new Flutter project on the master branch on a Windows 10 machine that supports toggling between light and dark theme
- Add
darkTheme: ThemeData.dark(),
themeMode: ThemeMode.system,
to the MaterialApp and run the application
3. Observe that if you toggle the Windows theme between dark and light, the Flutter application will not reflect the theme change
Flutter doctor -v:
[√] Flutter (Channel master, v1.18.0-5.0.pre.96, on Microsoft Windows [Version 10.0.18363.752], locale en-US)
• Flutter version 1.18.0-5.0.pre.96 at C:\flutter
• Framework revision 7f56b53de4 (2 hours ago), 2020-04-12 12:00:01 -0400
• Engine revision beb8a7ec48
• Dart version 2.8.0 (build 2.8.0-dev.20.0 89b0f67261)
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at C:\Users\ReubenT\AppData\Local\Android\sdk
• Platform android-R, build-tools 29.0.3
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
[√] Visual Studio - develop for Windows (Visual Studio Community 2019 16.1.6)
• Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
• Visual Studio Community 2019 version 16.1.29102.190
[√] Android Studio (version 3.6)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 45.1.1
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
[√] IntelliJ IDEA Community Edition (version 2019.2)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2019.1.3
• Flutter plugin version 41.2.3
• Dart plugin version 192.7761
[√] VS Code (version 1.43.2)
• VS Code at C:\Users\ReubenT\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.9.0
Scanning for devices is taking a long time...-Terminate batch job (Y/N)? y
C:\Users\ReubenT\FlutterProjects\experiments\windows_theme_bug>flutter doctor -v
[√] Flutter (Channel master, v1.18.0-5.0.pre.96, on Microsoft Windows [Version 10.0.18363.752], locale en-US)
• Flutter version 1.18.0-5.0.pre.96 at C:\flutter
• Framework revision 7f56b53de4 (2 hours ago), 2020-04-12 12:00:01 -0400
• Engine revision beb8a7ec48
• Dart version 2.8.0 (build 2.8.0-dev.20.0 89b0f67261)
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at C:\Users\ReubenT\AppData\Local\Android\sdk
• Platform android-R, build-tools 29.0.3
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
[√] Visual Studio - develop for Windows (Visual Studio Community 2019 16.1.6)
• Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
• Visual Studio Community 2019 version 16.1.29102.190
[√] Android Studio (version 3.6)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 45.1.1
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
[√] IntelliJ IDEA Community Edition (version 2019.2)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2019.1.3
• Flutter plugin version 41.2.3
• Dart plugin version 192.7761
[√] VS Code (version 1.43.2)
• VS Code at C:\Users\ReubenT\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.9.0
(cannot include the devices section as it has been hanging indefinitely...O_O)
Windows version:
1909 build 18363.752
Most recent flutter upgrade was today.