use texticonbutton for scan and export, use global bool to enable local json config

lib/globals.dart

@@ -3,5 +3,8 @@ library app.globals;
 import 'package:smoke_cess_app/mock/db_mock.dart';
 import 'package:smoke_cess_app/services/database_service.dart';
 
-DatabaseService databaseService = DatabaseMock(); 
+DatabaseService databaseService = DatabaseMock();
 //  DatabaseService databaseService = DatabaseService.instance;
+
+// set this to read settings from local json file instead of scanning a qr code
+bool useLocalConfig = false;

lib/pages/scanner_page.dart

@@ -4,8 +4,11 @@ import 'package:provider/provider.dart';
 import 'package:smoke_cess_app/services/export_service.dart';
 import 'package:smoke_cess_app/services/settings_service.dart';
 import 'package:smoke_cess_app/services/notification_service.dart';
+import 'package:smoke_cess_app/widgets/buttons/round_button_widget.dart';
+import 'package:smoke_cess_app/widgets/buttons/text_icon_button.dart';
 import 'package:smoke_cess_app/widgets/scanner.dart';
 import '../providers/settings_provider.dart';
+import '../globals.dart' as globals;
 
 class ScannerPage extends StatelessWidget {
   const ScannerPage({super.key});
@@ -32,25 +35,26 @@ class ScannerPage extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    SettingsProvider settingsProvider = context.watch<SettingsProvider>();
+
     return Center(
         child: Column(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         const MyScanner(),
         const SizedBox(height: 30),
-        ElevatedButton(
+        if (!settingsProvider.scanning)
-          style: ElevatedButton.styleFrom(
+          TextIconButton(
-              textStyle: const TextStyle(fontSize: 20)),
+              text: 'Export',
-          onPressed: () => loadJSON(context),
+              onPressed: ExportService().exportData,
-          child: const Text('Read JSON'),
+              iconData: Icons.upload),
-        ),
+        if (globals.useLocalConfig && !settingsProvider.scanning)
-        const SizedBox(height: 30),
+          ElevatedButton(
-        ElevatedButton(
+            style: ElevatedButton.styleFrom(
-          style: ElevatedButton.styleFrom(
+                textStyle: const TextStyle(fontSize: 20)),
-              textStyle: const TextStyle(fontSize: 20)),
+            onPressed: () => loadJSON(context),
-          onPressed: export,
+            child: const Text('Read JSON'),
-          child: const Text('Export'),
+          ),
-        )
       ],
     ));
   }

lib/widgets/buttons/text_icon_button.dart

@@ -0,0 +1,29 @@
+import 'package:flutter/material.dart';
+
+class TextIconButton extends StatelessWidget {
+  final String text;
+  final VoidCallback onPressed;
+  final IconData iconData;
+
+  const TextIconButton(
+      {super.key,
+      required this.text,
+      required this.onPressed,
+      required this.iconData});
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(
+      width: MediaQuery.of(context).size.width * 0.4,
+      child: FloatingActionButton.extended(
+        label: Text(text),
+        backgroundColor: Theme.of(context).colorScheme.primary,
+        icon: Icon(
+          iconData,
+          size: 24.0,
+        ),
+        onPressed: onPressed,
+      ),
+    );
+  }
+}

lib/widgets/scanner.dart

@@ -5,6 +5,7 @@ import 'package:provider/provider.dart';
 import 'package:smoke_cess_app/models/settings.dart';
 import 'package:smoke_cess_app/services/json_service.dart';
 import 'package:smoke_cess_app/services/settings_service.dart';
+import 'package:smoke_cess_app/widgets/buttons/text_icon_button.dart';
 import '../providers/settings_provider.dart';
 import '../services/notification_service.dart';
 import 'buttons/round_button_widget.dart';
@@ -77,9 +78,9 @@ class MyScanner extends StatelessWidget {
                       color: Colors.white.withOpacity(0.4))),
             ],
           ))
-        : RoundButton(
+        : TextIconButton(
+            text: "Scan",
             onPressed: () => settingsProvider.scanning = true,
-            iconData: Icons.qr_code_scanner_outlined,
+            iconData: Icons.qr_code_scanner_outlined);
-          );
   }
 }