TcpClient.Connected only reflects the last known socket state, so a
connection killed silently while the phone was locked (Doze, mobile
radio suspend, NAT timeout) still reported IsConnected == true. The
keep-alive ping's failure was swallowed by an empty catch, so the
stale "connected" state never cleared and sync kept retrying on a
dead socket instead of reconnecting.
Treat a failed keep-alive ping as a disconnect (tear down the client
and reconnect), and add OnPause/OnResume to the Android activity to
force an immediate health check on resume instead of waiting for the
20s timer, which may itself be suspended during Doze.
Camera2 + ZXing.Net 0.16.9 activity (ScannerActivity) that captures JPEG
frames at ~2.5 fps and decodes QR codes without Xamarin dependencies.
Result is returned to MainActivity via OnActivityResult/TaskCompletionSource.
PlatformServices.ScanQrAsync seam wires Android head to shared App layer;
ScanQrCommand in the Send ViewModel strips BIP21 URI scheme/query parameters.
CAMERA permission and uses-feature added to AndroidManifest.
The Avalonia UI code (App, Views, ViewModels, Localization, Assets) now
lives in src/App as a plain library (no OutputType). Two thin heads
reference it:
- src/App.Desktop/ — WinExe, Avalonia.Desktop, hosts MainView in a
MainWindow; carries Program.cs and app.manifest (moved from src/App)
- src/App.Android/ — net10.0-android, Avalonia.Android, MainActivity/
MainApplication; targets API 23+, EmbedAssembliesIntoApk=true so the
apk is self-contained for sideloading
All event handlers and TopLevel-dependent calls (file picker, clipboard,
folder picker) moved from MainWindow.axaml.cs into the new shared
MainView.axaml.cs (UserControl), using TopLevel.GetTopLevel(this) so
they work on both platforms. Esc/Back key handling is also in MainView.
MainWindow becomes a thin shell that hosts MainView.
Framework bump: all projects move to net10.0; Cli and Tests follow.
davide