Implement Phase 1 Android client: Flutter share receiver + upload service

- Register ACTION_SEND IntentFilter for image/* in AndroidManifest - Kotlin MethodChannel bridge: extract image URI, original filename, resolve to file - Flutter bottom sheet UI: thumbnail preview, note input (200 char), submit/cancel - Upload service: multipart POST, Bearer auth, 10MB limit, offline cache, exponential backoff retry - Configurable server URL and API token via SharedPreferences - Minimal home screen with usage instructions Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-05-21 17:05:44 +08:00
parent ff95d75eed
commit d11f33380c
133 changed files with 5672 additions and 2 deletions
--- a/lib/screens/home_screen.dart
+++ b/lib/screens/home_screen.dart
@@ -0,0 +1,95 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+import '../widgets/record_bottom_sheet.dart';
+
+class HomeScreen extends StatefulWidget {
+  const HomeScreen({super.key});
+
+  @override
+  State<HomeScreen> createState() => _HomeScreenState();
+}
+
+class _HomeScreenState extends State<HomeScreen> {
+  static const _channel = MethodChannel('com.snapledger.snapledger/share');
+
+  @override
+  void initState() {
+    super.initState();
+    _checkForSharedData();
+    _channel.setMethodCallHandler((call) async {
+      if (call.method == 'onShareReceived') {
+        final args = Map<String, String>.from(call.arguments as Map);
+        _handleSharedData(args);
+      }
+    });
+  }
+
+  Future<void> _checkForSharedData() async {
+    try {
+      final data = await _channel.invokeMethod<Map>('getSharedData');
+      if (data != null && data.containsKey('uri')) {
+        _handleSharedData(Map<String, String>.from(data));
+      }
+    } on PlatformException {
+      // No shared data
+    }
+  }
+
+  Future<void> _handleSharedData(Map<String, String> data) async {
+    final filename = data['filename'] ?? 'upload.jpg';
+
+    // Resolve the content URI to a local file
+    // Use MethodChannel to get the actual file path from content URI
+    try {
+      final filePath = await _channel.invokeMethod<String>('getFilePath', {'uri': data['uri']});
+      if (filePath == null || !File(filePath).existsSync()) return;
+
+      if (!mounted) return;
+      showModalBottomSheet(
+        context: context,
+        isScrollControlled: true,
+        builder: (_) => RecordBottomSheet(
+          imageFile: File(filePath),
+          originalFilename: filename,
+        ),
+      );
+    } on PlatformException {
+      // Could not resolve file
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('SnapLedger')),
+      body: Center(
+        child: Padding(
+          padding: const EdgeInsets.all(32),
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              const Icon(Icons.receipt_long, size: 64, color: Colors.grey),
+              const SizedBox(height: 24),
+              Text(
+                '如何使用',
+                style: Theme.of(context).textTheme.titleLarge,
+              ),
+              const SizedBox(height: 16),
+              const Text(
+                '1. 在支付成功页面截图\n'
+                '2. 点击分享按钮\n'
+                '3. 选择 SnapLedger\n'
+                '4. 添加备注（可选）并提交',
+                textAlign: TextAlign.center,
+                style: TextStyle(fontSize: 16, color: Color(0xFF616161)),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}