Prevent duplicate ML Kit barcode-scanning AAR packaging

[Copilot]

Xamarin.Google.MLKit.BarcodeScanning embedded its AAR while also downloading it twice through build-transitive targets, producing duplicate XA4301 warnings.

• Packaging

  • Mark local XBD AAR inputs as non-packable, retaining only the downloaded artifact.
  • Remove the duplicate XamarinBuildDownloadAndroidAarLibrary item.

  <AndroidLibrary Include="...\barcode-scanning.aar" Pack="false" />

• Versioning

  • Bump Xamarin.Google.MLKit.BarcodeScanning from 117.3.0.8 to 117.3.0.9.

• Fixes Xamarin.Google.MLKit.BarcodeScanning packages barcode-scanning 17.3.0 twice (embedded AAR + XamarinBuildDownload), causing duplicate XA4301 warnings #1519

[Copilot]

Pull request overview

This pull request updates the Xamarin Build Download (XBD) packaging flow for Xamarin.Google.MLKit.BarcodeScanning to avoid embedding the same ML Kit barcode-scanning AAR that is also restored via build-transitive download targets, eliminating duplicated-native-library (XA4301) warnings for consumers.

Changes:

• Prevent packing of local XBD AAR inputs by marking the AndroidLibrary item as Pack="false" in the XBD project template.
• Remove a duplicate XamarinBuildDownloadAndroidAarLibrary item emission in the XBD targets template so the downloaded AAR is only included once.
• Bump Xamarin.Google.MLKit.BarcodeScanning NuGet version from 117.3.0.8 to 117.3.0.9.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
source/XamarinBuildDownloadTargets.cshtml	Adjusts generated build-transitive targets to avoid duplicating the downloaded AAR library item.
source/_XBDProjectType.cshtml	Ensures local AAR inputs don’t get packed into the NuGet, avoiding embedding + download duplication.
config.json	Version bump for Xamarin.Google.MLKit.BarcodeScanning to ship the packaging fix.

---

💡 Add a code-review agent skill for context-aware, tailored reviews. Learn more in the docs.