Android - Avalonia GUI (native preview): report bugs and feedback here

[laqieer]

The native Android build of the cross-platform Avalonia GUI is available as an experimental preview, and this thread is the place to report bugs and share feedback.

What it is

A native Android app (FEBuilderGBA.Android) that reuses the shared Avalonia editor UI under a single-view, touch-oriented shell - part of the native-mobile epic #1070. It boots into the editor launcher, extracts its bundled config/ on first run, and opens/saves ROMs via the system file picker (SAF).

Preview status: the app builds a signed APK and an emulator boot smoke test confirms it launches into its editor-launcher shell. The full interactive ROM-editing flow (touch UX, reaching/using every editor, SAF open/save) is not yet fully device-validated, so treat this as experimental.

How to install

• Download the APK from the latest release (FEBuilderGBA-android-apk.zip), unzip, and install the .apk (you may need to allow "install from unknown sources").
• Known limitation: the binary-patch library (config/patch2) and the FE-Repo graphics/music resources are not bundled on Android (they are large git-delivered payloads) - see #1641.

How to report a bug (reply below)

Please include:

• Device + Android version (e.g. Pixel 7, Android 15)
• App/release version (the ver_* tag you installed)
• ROM version if relevant (FE6 / FE7J / FE7U / FE8J / FE8U)
• Steps to reproduce, what you expected, what happened
• A screenshot / screen recording and, if it crashed, any logcat output

Background + design details: docs/ANDROID.md. Thanks for helping harden the Android preview!

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Copilot CLI: 1.0.69-1
Model: Claude Opus 4.8 (claude-opus-4.8)