Integrate native audio focus and webview reload support

[marc-n-dream]

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[marc-n-dream]

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[Copilot]

Pull request overview

This PR integrates native audio focus management and webview reload support to improve Android platform behavior, particularly for Android Automotive. Key changes include implementing thread-safe event handling for WebView callbacks, adding audio focus state management with volume control, and replacing webview recreation with reload-based navigation.

Key Changes:

• Introduced thread-safe event queue architecture for WebView callbacks to handle cross-thread communication from native Android code
• Added native audio focus management with maximum volume tracking to comply with Android Automotive requirements
• Replaced full webview recreation with reload-based navigation to improve performance and reliability

Reviewed changes

Copilot reviewed 35 out of 50 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
CHANGELOG.md	Updated with Android support improvements and audio focus enhancements
Assets/WebGLTemplates/AirConsole-U6/airconsole-unity-plugin.js	Added Android TV detection workaround for native game sizing
Assets/AirConsole/unity-webview/Runtime/WebViewObject.cs	Implemented thread-safe event queue and removed polling-based message retrieval
Assets/AirConsole/unity-webview/Runtime/WebViewEvent.cs	New event model for thread-safe WebView communication
Assets/AirConsole/unity-webview/Runtime/WebViewCallback.cs	New direct callback bridge from Java to C#
Assets/AirConsole/scripts/Runtime/AirConsole.cs	Added audio focus management and OnGameAudioFocusChanged event
Assets/AirConsole/scripts/Runtime/Plugin/Android/PluginManager.cs	Added volume and audio focus change event handlers
Assets/AirConsole/scripts/Editor/BuildAutomation/AndroidGradleProcessor.cs	Refactored dependency injection logic
Assets/AirConsole/examples/basic/AudioManager.cs	New example showing proper audio focus handling
Assets/Packager/Editor/Packager.cs	Removed webview package extraction logic
AGENTS.md	Added comprehensive project documentation for AI agents

Files not reviewed (2)

• .idea/.idea.airconsole-unity-plugin/.idea/codeStyles/Project.xml: Language not supported
• .idea/.idea.airconsole-unity-plugin/.idea/codeStyles/codeStyleConfig.xml: Language not supported

Comments suppressed due to low confidence (1)

Assets/AirConsole/scripts/Editor/BuildAutomation/AndroidGradleProcessor.cs:95

• Using target-typed new expression 'new()' requires C# 9.0 or later. Verify that the project's C# language version is configured to support this syntax to avoid compilation errors in older Unity versions.

            List<string> lines = new();

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[chatgpt-codex-connector]

Update HasAudioFocus when native focus is lost

In the native audio focus loss branch the code logs and conditionally returns but never sets HasAudioFocus to false, even though the gain branches above set it to true. When Android delivers NATIVE_AUDIOFOCUS_LOSS (e.g., another app grabs audio), the API property remains true despite focus having been revoked, so game code that relies on HasAudioFocus will keep playing sound after a loss unless it separately tracks the event argument.

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