Fix BLE contact add failure

lib/providers/connection_provider.dart

@@ -1358,6 +1358,22 @@ class ConnectionProvider with ChangeNotifier {
     }
   }
 
+  Future<void> importContactAdvert(Uint8List contactAdvertFrame) async {
+    if (!_activeService.isConnected) {
+      _error = 'Not connected to device';
+      notifyListeners();
+      return;
+    }
+
+    try {
+      _error = null;
+      await _activeService.importContact(contactAdvertFrame);
+    } catch (e) {
+      _error = 'Failed to import contact: $e';
+      notifyListeners();
+    }
+  }
+
   /// Send text message to contact
   ///
   /// Returns true if the message was successfully sent to the BLE service.

lib/screens/add_contact_screen.dart

@@ -0,0 +1,224 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:provider/provider.dart';
+
+import '../providers/connection_provider.dart';
+
+class AddContactScreen extends StatefulWidget {
+  const AddContactScreen({super.key});
+
+  @override
+  State<AddContactScreen> createState() => _AddContactScreenState();
+}
+
+class _AddContactScreenState extends State<AddContactScreen> {
+  final TextEditingController _advertController = TextEditingController();
+  bool _isImporting = false;
+  String? _validationError;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadClipboardIfPresent();
+  }
+
+  @override
+  void dispose() {
+    _advertController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _loadClipboardIfPresent() async {
+    final clipboardData = await Clipboard.getData(Clipboard.kTextPlain);
+    final text = clipboardData?.text?.trim();
+    if (!mounted || text == null || text.isEmpty) {
+      return;
+    }
+    if (_normalizeAdvertText(text) == null) {
+      return;
+    }
+    _advertController.text = text;
+  }
+
+  String? _normalizeAdvertText(String value) {
+    final trimmed = value.trim();
+    if (trimmed.isEmpty) {
+      return null;
+    }
+
+    var normalized = trimmed;
+    if (normalized.startsWith('meshcore://')) {
+      normalized = normalized.substring('meshcore://'.length);
+    }
+
+    normalized = normalized.replaceAll(RegExp(r'\s+'), '');
+    if (normalized.isEmpty) {
+      return null;
+    }
+
+    final isHex = RegExp(r'^[0-9a-fA-F]+$').hasMatch(normalized);
+    if (!isHex || normalized.length.isOdd) {
+      return null;
+    }
+
+    return normalized.toLowerCase();
+  }
+
+  Uint8List _hexToBytes(String hex) {
+    final bytes = <int>[];
+    for (var i = 0; i < hex.length; i += 2) {
+      bytes.add(int.parse(hex.substring(i, i + 2), radix: 16));
+    }
+    return Uint8List.fromList(bytes);
+  }
+
+  Future<void> _pasteFromClipboard() async {
+    final clipboardData = await Clipboard.getData(Clipboard.kTextPlain);
+    final text = clipboardData?.text;
+    if (text == null || text.trim().isEmpty) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(
+        context,
+      ).showSnackBar(const SnackBar(content: Text('Clipboard is empty')));
+      return;
+    }
+
+    setState(() {
+      _advertController.text = text.trim();
+      _validationError = null;
+    });
+  }
+
+  Future<void> _importContact() async {
+    final normalized = _normalizeAdvertText(_advertController.text);
+    if (normalized == null) {
+      setState(() {
+        _validationError =
+            'Enter a valid meshcore:// advert or raw hexadecimal contact advert.';
+      });
+      return;
+    }
+
+    final advertBytes = _hexToBytes(normalized);
+    if (advertBytes.length < 98) {
+      setState(() {
+        _validationError =
+            'Advert is too short. Expected exported contact data.';
+      });
+      return;
+    }
+
+    setState(() {
+      _isImporting = true;
+      _validationError = null;
+    });
+
+    final connectionProvider = context.read<ConnectionProvider>();
+    await connectionProvider.importContactAdvert(advertBytes);
+    final importError = connectionProvider.error;
+
+    if (importError == null) {
+      await connectionProvider.getContacts();
+    }
+
+    if (!mounted) {
+      return;
+    }
+
+    setState(() {
+      _isImporting = false;
+    });
+
+    if (importError != null) {
+      ScaffoldMessenger.of(
+        context,
+      ).showSnackBar(SnackBar(content: Text(importError)));
+      return;
+    }
+
+    ScaffoldMessenger.of(
+      context,
+    ).showSnackBar(const SnackBar(content: Text('Contact imported')));
+    Navigator.of(context).pop(true);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final normalized = _normalizeAdvertText(_advertController.text);
+
+    return Scaffold(
+      appBar: AppBar(title: const Text('Add Contact')),
+      body: ListView(
+        padding: const EdgeInsets.all(16),
+        children: [
+          Text(
+            'Import an exported contact advert, like meshcore-open.',
+            style: theme.textTheme.titleMedium,
+          ),
+          const SizedBox(height: 8),
+          Text(
+            'Paste a `meshcore://...` link or raw hex advert from the clipboard.',
+            style: theme.textTheme.bodyMedium?.copyWith(
+              color: theme.colorScheme.onSurfaceVariant,
+            ),
+          ),
+          const SizedBox(height: 16),
+          TextField(
+            controller: _advertController,
+            minLines: 4,
+            maxLines: 8,
+            onChanged: (_) {
+              if (_validationError != null) {
+                setState(() {
+                  _validationError = null;
+                });
+              }
+            },
+            decoration: InputDecoration(
+              labelText: 'Contact advert',
+              hintText: 'meshcore://...',
+              alignLabelWithHint: true,
+              border: const OutlineInputBorder(),
+              errorText: _validationError,
+            ),
+          ),
+          const SizedBox(height: 12),
+          if (normalized != null)
+            Text(
+              'Advert size: ${normalized.length ~/ 2} bytes',
+              style: theme.textTheme.bodySmall?.copyWith(
+                color: theme.colorScheme.onSurfaceVariant,
+              ),
+            ),
+          const SizedBox(height: 20),
+          Row(
+            children: [
+              Expanded(
+                child: OutlinedButton.icon(
+                  onPressed: _isImporting ? null : _pasteFromClipboard,
+                  icon: const Icon(Icons.content_paste_go_outlined),
+                  label: const Text('Paste'),
+                ),
+              ),
+              const SizedBox(width: 12),
+              Expanded(
+                child: FilledButton.icon(
+                  onPressed: _isImporting ? null : _importContact,
+                  icon: _isImporting
+                      ? const SizedBox(
+                          width: 16,
+                          height: 16,
+                          child: CircularProgressIndicator(strokeWidth: 2),
+                        )
+                      : const Icon(Icons.person_add_alt_1_outlined),
+                  label: Text(_isImporting ? 'Importing...' : 'Add Contact'),
+                ),
+              ),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/screens/contacts_tab.dart

@@ -17,6 +17,7 @@ import '../utils/avatar_label_helper.dart';
 import '../widgets/common/contact_avatar.dart';
 import '../widgets/contacts/contact_tile.dart';
 import '../widgets/contacts/add_channel_dialog.dart';
+import 'add_contact_screen.dart';
 
 class ContactsTab extends StatefulWidget {
   final VoidCallback? onNavigateToMap;
@@ -389,6 +390,12 @@ class _ContactsTabState extends State<ContactsTab> {
     );
   }
 
+  Future<void> _openAddContactScreen(BuildContext context) async {
+    await Navigator.of(
+      context,
+    ).push(MaterialPageRoute(builder: (context) => const AddContactScreen()));
+  }
+
   Future<void> _showDeleteChannelDialog(
     BuildContext context,
     Contact channel,
@@ -659,6 +666,18 @@ class _ContactsTabState extends State<ContactsTab> {
                     style: Theme.of(context).textTheme.bodyMedium,
                     textAlign: TextAlign.center,
                   ),
+                  if (context
+                      .watch<ConnectionProvider>()
+                      .deviceInfo
+                      .isConnected)
+                    Padding(
+                      padding: const EdgeInsets.only(top: 16),
+                      child: OutlinedButton.icon(
+                        onPressed: () => _openAddContactScreen(context),
+                        icon: const Icon(Icons.person_add_alt_1_outlined),
+                        label: const Text('Add Contact'),
+                      ),
+                    ),
                 ],
               ),
             );
@@ -862,16 +881,36 @@ class _ContactsTabState extends State<ContactsTab> {
                       horizontal: 16,
                       vertical: 8,
                     ),
-                    child: OutlinedButton.icon(
+                    child: Row(
-                      onPressed: () => _showAddChannelDialog(context),
+                      children: [
-                      icon: const Icon(Icons.add_circle_outline),
+                        Expanded(
-                      label: Text(l10n.addChannel),
+                          child: OutlinedButton.icon(
-                      style: OutlinedButton.styleFrom(
+                            onPressed: () => _openAddContactScreen(context),
-                        padding: const EdgeInsets.symmetric(
+                            icon: const Icon(Icons.person_add_alt_1_outlined),
-                          horizontal: 24,
+                            label: const Text('Add Contact'),
-                          vertical: 12,
+                            style: OutlinedButton.styleFrom(
+                              padding: const EdgeInsets.symmetric(
+                                horizontal: 24,
+                                vertical: 12,
+                              ),
+                            ),
+                          ),
                         ),
-                      ),
+                        const SizedBox(width: 12),
+                        Expanded(
+                          child: OutlinedButton.icon(
+                            onPressed: () => _showAddChannelDialog(context),
+                            icon: const Icon(Icons.add_circle_outline),
+                            label: Text(l10n.addChannel),
+                            style: OutlinedButton.styleFrom(
+                              padding: const EdgeInsets.symmetric(
+                                horizontal: 24,
+                                vertical: 12,
+                              ),
+                            ),
+                          ),
+                        ),
+                      ],
                     ),
                   ),
               ],

pubspec.lock

@@ -786,11 +786,9 @@ packages:
   meshcore_client:
     dependency: "direct main"
     description:
-      path: "."
+      path: "../meshcore_client"
-      ref: eafe9a88fb12193820e8abbf5a096e408117b53d
+      relative: true
-      resolved-ref: eafe9a88fb12193820e8abbf5a096e408117b53d
+    source: path
-      url: "https://github.com/dz0ny/meshcore_client.git"
-    source: git
     version: "0.1.0"
   meta:
     dependency: transitive

pubspec.yaml

@@ -135,6 +135,8 @@ dev_dependencies:
   fake_async: ^1.3.3
 
 dependency_overrides:
+  meshcore_client:
+    path: ../meshcore_client
   # path_provider_foundation 2.6.0 pulls in package:objective_c as a native
   # asset. That framework has been ending up archived with a macOS platform
   # slice and fails App Store validation for iOS uploads.