added starting code for add form, main screen and db

lib/add_form.dart

@@ -0,0 +1,67 @@
+import 'package:flutter/material.dart';
+import 'data_util.dart' as data;
+
+class AddForm extends StatelessWidget {
+  AddForm({Key? key, required this.type}) : super(key: key);
+  final _formKey = GlobalKey<FormState>();
+
+  final data.Page type;
+  int _templatChoice = -1;
+
+  final FocusNode _TemplateFocusNode = FocusNode();
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(
+          'Add ' +
+              ((type == data.Page.lists)
+                  ? 'Check List'
+                  : (type == data.Page.templates)
+                      ? 'Template'
+                      : ''),
+        ),
+      ),
+      body: Container(
+        margin: const EdgeInsets.all(10),
+        child: Form(
+          key: _formKey,
+          child: Column(
+            children: [
+              TextFormField(
+                  onFieldSubmitted: (value) {
+                    FocusScope.of(context).requestFocus(_TemplateFocusNode);
+                  },
+                  decoration: const InputDecoration(labelText: 'Label')),
+              DropdownButtonFormField(
+                focusNode: _TemplateFocusNode,
+                value: _templatChoice,
+                onChanged: (value) {
+                  setState() {
+                    _templatChoice = value as int;
+                  }
+                },
+                decoration:
+                    const InputDecoration(labelText: "Starting Template"),
+                items: const [
+                  // TODO get templates from database
+                  DropdownMenuItem<int>(child: Text("None"), value: -1),
+                  DropdownMenuItem<int>(child: Text("1"), value: 0),
+                ],
+              )
+            ],
+          ),
+        ),
+      ),
+      floatingActionButton: FloatingActionButton(
+        child: Icon(Icons.save_alt),
+        onPressed: () {
+          // TODO implement adding list to database
+          Navigator.pop(context); // TODO replace route with checklist page
+        },
+      ),
+      floatingActionButtonLocation: FloatingActionButtonLocation.centerFloat,
+    );
+  }
+}

lib/box_checker.dart

@@ -0,0 +1,72 @@
+import 'package:flutter/material.dart';
+import 'add_form.dart';
+import 'data_util.dart' as data;
+
+void main() {
+  runApp(const BoxChecker());
+}
+
+class BoxChecker extends StatelessWidget {
+  const BoxChecker({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Flutter Demo',
+      theme: ThemeData(brightness: Brightness.dark),
+      themeMode: ThemeMode.dark,
+      home: const MainListPage(title: 'BoxChecker'),
+    );
+  }
+}
+
+class MainListPage extends StatefulWidget {
+  const MainListPage({Key? key, required this.title}) : super(key: key);
+  final String title;
+
+  @override
+  State<MainListPage> createState() => _MainListPageState();
+}
+
+class _MainListPageState extends State<MainListPage> {
+  int _selectedPage = data.Page.lists.index;
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+        appBar: AppBar(
+          title: Text(widget.title),
+        ),
+        floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked,
+        floatingActionButton: FloatingActionButton(
+          onPressed: () {
+            Navigator.push(
+                context,
+                MaterialPageRoute(
+                    builder: (context) =>
+                        AddForm(type: data.Page.values[_selectedPage])));
+          }, // TODO Implement add button
+          tooltip: 'Add List',
+          child: const Icon(Icons.add),
+        ),
+        body: ListView.builder(itemBuilder: (context, index) {
+          return ListTile(); // TODO Implement tile rendering
+        }),
+        bottomNavigationBar: BottomNavigationBar(
+            currentIndex: _selectedPage,
+            onTap: (index) {
+              setState(() {
+                _selectedPage = index;
+              });
+            },
+            items: const [
+              BottomNavigationBarItem(
+                icon: Icon(Icons.checklist),
+                label: "Lists",
+              ),
+              BottomNavigationBarItem(
+                icon: Icon(Icons.folder_open),
+                label: "Templates",
+              ),
+            ]));
+  }
+}

lib/data_util.dart

@@ -0,0 +1,44 @@
+enum Page { lists, templates }
+
+class List {
+  List(this.id, this.name, {this.isTemplate});
+
+  int id;
+  String name;
+  bool? isTemplate;
+
+  Map<String, dynamic> toMap() {
+    var map = Map<String, dynamic>();
+    map["id"] = this.id;
+    map["list_name"] = this.name;
+    if (isTemplate != null) map["is_template"] = this.isTemplate as int;
+    return map;
+  }
+
+  static List fromMap(Map<String, dynamic> map) {
+    return List(map["id"], map["list_name"], isTemplate: map["is_template"]);
+  }
+}
+
+class Check {
+  Check(this.id, this.text, this.value, {this.listID});
+
+  int id;
+  String text;
+  bool value;
+  int? listID;
+
+  Map<String, dynamic> toMap() {
+    var map = Map<String, dynamic>();
+    map["id"] = this.id;
+    map["check_text"] = this.text;
+    map["value"] = this.value as int;
+    if (listID != null) map["list_id"] = this.listID as int;
+    return map;
+  }
+
+  static Check fromMap(Map<String, dynamic> map) {
+    return Check(map["id"], map["check_text"], map["value"],
+        listID: map["list_id"]);
+  }
+}

lib/db_helper.dart

@@ -0,0 +1,54 @@
+import "package:sqflite/sqflite.dart";
+import "package:sqflite/sqlite_api.dart";
+import "package:path/path.dart";
+
+class DBHelper {
+  DBHelper._();
+
+  static DBHelper dbHelper = DBHelper._();
+
+  late Database _database;
+
+  Future<Database> get database async {
+    _database = await _createDatabase();
+
+    return _database;
+  }
+
+  Future<Database> _createDatabase() async {
+    Database database =
+        await openDatabase(join(await getDatabasesPath(), 'mydb.db'),
+            onCreate: (Database db, int version) {
+      db.execute("""
+          CREATE TABLE List(
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            list_name TEXT
+            is_template int2
+          )
+          """);
+      db.execute("""
+          CREATE TABLE Check(
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            check_text TEXT,
+            value int2,
+            list_id INTEGER
+          )
+          """);
+    }, version: 1);
+    return database;
+  }
+
+  Future<Map<String, dynamic>> getAllLists() async {
+    Database db = await database;
+
+    return db.query("List", where: "is_template = ?", whereArgs: ['0'])
+        as Map<String, dynamic>;
+  }
+
+  Future<Map<String, dynamic>> getAllTemplates() async {
+    Database db = await database;
+
+    return db.query("List", where: "is_template = ?", whereArgs: ['1'])
+        as Map<String, dynamic>;
+  }
+}

lib/main.dart

@@ -1,53 +0,0 @@
-import 'package:flutter/material.dart';
-
-void main() {
-  runApp(const BoxChecker());
-}
-
-class BoxChecker extends StatelessWidget {
-  const BoxChecker({Key? key}) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Flutter Demo',
-      theme: ThemeData(brightness: Brightness.dark),
-      themeMode: ThemeMode.dark,
-      home: const MainListPage(title: 'BoxChecker'),
-    );
-  }
-}
-
-class MainListPage extends StatefulWidget {
-  const MainListPage({Key? key, required this.title}) : super(key: key);
-  final String title;
-
-  @override
-  State<MainListPage> createState() => _MainListPageState();
-}
-
-class _MainListPageState extends State<MainListPage> {
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: Text(widget.title),
-        actions: [
-          IconButton(
-            onPressed: () {}, // TODO implement dropdown meny for more options
-            icon: const Icon(Icons.more_vert_rounded),
-            tooltip: 'More Options',
-          )
-        ],
-      ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: () {}, // TODO Implement add button
-        tooltip: 'Add List',
-        child: const Icon(Icons.add),
-      ),
-      body: ListView.builder(itemBuilder: (context, index) {
-        return ListTile(); // TODO Implement tile rendering
-      }),
-    );
-  }
-}