Rewrite as Flutter app and rename to Quicklogmain

Drop the Go/Fyne implementation and replace it with a native Flutter app
targeting Android (primary) and Linux desktop (development). Rename
quicklogger -> quicklog throughout (project, applicationId, MethodChannel,
cache filename, AppBar title, Linux binary).

Storage on Android moves to /Android/data/org.buetow.quicklog/files/ so
MANAGE_EXTERNAL_STORAGE is no longer required. Share-intent receive is
preserved via a Kotlin ShareActivity that writes shared text to the app
cache, which Dart reads through a MethodChannel on app resume; MainActivity
also accepts SEND directly so launchers that prefer the main target work.

New since the Fyne version: an entry browser screen with read-only viewer
and long-press delete.

Cross-compiling to Android ARM from amd64 Linux no longer needs Docker /
fyne-cross / NDK -- flutter build apk emits ARM binaries directly.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/lib/services/share_service.dart b/lib/services/share_service.dart
new file mode 100644
index 0000000..36eb7af
--- /dev/null
+++ b/lib/services/share_service.dart
@@ -0,0 +1,25 @@
+import 'dart:io' show Platform;
+
+import 'package:flutter/services.dart';
+
+class ShareService {
+  static const _channel = MethodChannel('org.buetow.quicklog/share');
+
+  static Future<String?> readSharedTextFromCache() async {
+    if (!Platform.isAndroid) return null;
+    try {
+      return await _channel.invokeMethod<String>('readSharedTextFromCache');
+    } on MissingPluginException {
+      return null;
+    }
+  }
+
+  static Future<void> clearSharedTextCache() async {
+    if (!Platform.isAndroid) return;
+    try {
+      await _channel.invokeMethod<void>('clearSharedTextCache');
+    } on MissingPluginException {
+      // No-op: channel not registered (e.g. running on a non-Android target).
+    }
+  }
+}