重现步骤

1. 运行示例代码
2. 根据 PreferredOrientations 将设备旋转至横向模式

预期结果

设备应根据 List 中选择的 PreferredOrientations 进行旋转。

实际结果

1. 如果你设置：

await SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
    DeviceOrientation.landscapeRight
  ]);

或者：

await SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
    DeviceOrientation.landscapeLeft
  ]);

设备在 portraitUp 时完全不旋转。

1. 如果你设置：

await SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
    DeviceOrientation.landscapeRight,
    DeviceOrientation.landscapeLeft
  ]);

设备在所有三个方向上完美旋转。

代码示例

代码示例

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
    DeviceOrientation.landscapeRight
  ]);
  runApp(const TestWidget());
}

class TestWidget extends StatefulWidget {
  const TestWidget({super.key});

  @override
  State<TestWidget> createState() => _TestWidgetState();
}

class _TestWidgetState extends State<TestWidget> {
  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: Scaffold(
        body: Center(
          child: Text("Hello world !"),
        ),
      ),
    );
  }
}

截图或视频

截图/视频演示
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日志

日志

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Flutter Doctor 输出

Doctor 输出

[✓] Flutter (Channel stable, 3.19.6, on macOS 14.4.1 23E224 darwin-x64, locale fr-FR)
• Flutter version 3.19.6 on channel stable at /Users/foxtom/Desktop/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 54e66469a9 (10 days ago), 2024-04-17 13:08:03 -0700
• Engine revision c4cd48e186
• Dart version 3.3.4
• DevTools version 2.31.1

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
• Android SDK at /Users/foxtom/Library/Android/sdk
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• Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)
• All Android licenses accepted.

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• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 15E204a
• CocoaPods version 1.15.2

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• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

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• Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)

[✓] VS Code (version 1.88.1)
• VS Code at /Users/foxtom/Desktop/Visual Studio Code.app/Contents
• Flutter extension version 3.46.0

[✓] Connected device (5 available)
• moto g 8 power (mobile)     • ZY22BNDW2C                • android-arm64  • Android 11 (API 30)
• iPhone de Nathalie (mobile) • 00008030-000E64110A8A802E • ios            • iOS 17.4.1 21E236
• Now You See Me (mobile)     • 00008020-001204401E78002E • ios            • iOS 17.4.1 21E236
• macOS (desktop)             • macos                     • darwin-x64     • macOS 14.4.1 23E224 darwin-x64
• Chrome (web)                • chrome                    • web-javascript • Google Chrome 124.0.6367.92
! Error: Browsing on the local area network for Apple Watch de Tom. Ensure the device is unlocked and discoverable via Bluetooth. (code -27)

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• All expected network resources are available.

• No issues found!