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Fix ScrollablePositionedList example app when targeting the web #532
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I tried to run the provided example targeting Chrome, and it fails running, with the following error:
```
══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following RangeError was thrown building Builder:
max must be in range 0 < max ≤ 2^32, was 0
```
The example runs fine when randomMax is lowered by 1.
<details>
<summary>If it's any useful, here is the Flutter Doctor's diagnostics</summary>
flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.19.6, on macOS 14.4.1 23E224 darwin-x64, locale fr)
[!] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
✗ cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See https://developer.android.com/studio/command-line for more details.
✗ Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/macos#android-setup for more details.
[✗] Xcode - develop for iOS and macOS
✗ Xcode installation is incomplete; a full installation is necessary for iOS and macOS development.
Download at: https://developer.apple.com/xcode/
Or install Xcode via the App Store.
Once installed, run:
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
sudo xcodebuild -runFirstLaunch
✗ CocoaPods not installed.
CocoaPods is used to retrieve the iOS and macOS platform side's plugin code that responds to your plugin usage on the Dart side.
Without CocoaPods, plugins will not work on iOS or macOS.
For more info, see https://flutter.dev/platform-plugins
To install see https://guides.cocoapods.org/using/getting-started.html#installation for instructions.
[✓] Chrome - develop for the web
[✓] Android Studio (version 2023.2)
[✓] Connected device (2 available)
[✓] Network resources
! Doctor found issues in 2 categories.
</details>
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Description
I tried to run the provided
ScrollablePositionedListexample, targeting Chrome. When running the example, it fails with the following error:The example runs fine when
randomMaxis lowered by 1.If it's any useful, here is the Flutter Doctor's diagnostics
flutter doctor
Doctor summary (to see all details, run flutter doctor -v): [✓] Flutter (Channel stable, 3.19.6, on macOS 14.4.1 23E224 darwin-x64, locale fr) [!] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
✗ cmdline-tools component is missing
Run
path/to/sdkmanager --install "cmdline-tools;latest"See https://developer.android.com/studio/command-line for more details.
✗ Android license status unknown.
Run
flutter doctor --android-licensesto accept the SDK licenses.See https://flutter.dev/docs/get-started/install/macos#android-setup for more details.
[✗] Xcode - develop for iOS and macOS
✗ Xcode installation is incomplete; a full installation is necessary for iOS and macOS development.
Download at: https://developer.apple.com/xcode/
Or install Xcode via the App Store.
Once installed, run:
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
sudo xcodebuild -runFirstLaunch
✗ CocoaPods not installed.
CocoaPods is used to retrieve the iOS and macOS platform side's plugin code that responds to your plugin usage on the Dart side.
Without CocoaPods, plugins will not work on iOS or macOS.
For more info, see https://flutter.dev/platform-plugins
To install see https://guides.cocoapods.org/using/getting-started.html#installation for instructions.
[✓] Chrome - develop for the web
[✓] Android Studio (version 2023.2)
[✓] Connected device (2 available)
[✓] Network resources
! Doctor found issues in 2 categories.
Related Issues
I could not find any issue mentioning the problem.
Checklist
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[x]). This will ensure a smooth and quick review process.flutter testpass.flutter analyzedoes not report any problems on my PR.