.vscode/launch.json

@@ -1,13 +0,0 @@
-{
-    // Use IntelliSense to learn about possible attributes.
-    // Hover to view descriptions of existing attributes.
-    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "name": "cloudtech_calculator",
-            "request": "launch",
-            "type": "dart"
-        }
-    ]
-}

lib/main.dart

@@ -2,7 +2,6 @@ import 'package:auto_size_text/auto_size_text.dart';
 import 'package:cloudtech_calculator/theme_model.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
-import 'route.dart';
 
 enum Operation {
   plus,
@@ -257,10 +256,7 @@ class _MyHomePageState extends State<MyHomePage> {
               icon: const Icon(Icons.settings),
               tooltip: 'Show Snackbar',
               onPressed: () {
-                Navigator.push(
+                Provider.of<ThemeModel>(context, listen: false).toggleTheme();
-                  context,
-                  MaterialPageRoute(builder: (context) => SecondRoute()),
-                );
               },
               color: Theme.of(context).accentColor,
             )

lib/route.dart

@@ -1,52 +0,0 @@
-import 'package:cloudtech_calculator/theme_model.dart';
-import 'package:flutter/material.dart';
-import 'package:provider/provider.dart';
-
-class SecondRoute extends StatefulWidget {
-  @override
-  _SecondRouteState createState() => _SecondRouteState();
-}
-
-class _SecondRouteState extends State<SecondRoute> {
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: Text("Настройки калькулятора",
-            style: TextStyle(color: Theme.of(context).accentColor)),
-        shadowColor: const Color(0x00000000),
-      ),
-      body: Container(
-          color: Theme.of(context).primaryColor,
-          child: Padding(
-            padding: const EdgeInsets.all(8.0),
-            child: ListView(
-              padding: const EdgeInsets.all(8),
-              children: [
-                ListTile(
-                  leading: IconButton(
-                      icon: Icon(
-                        Icons.settings_display,
-                        color: Theme.of(context).accentColor,
-                      ),
-                      onPressed: null),
-                  title: Text(
-                    "Светлая тема",
-                    style: TextStyle(
-                        fontWeight: FontWeight.w500,
-                        color: Theme.of(context).accentColor),
-                  ),
-                  trailing: Switch(
-                    value: Theme.of(context).brightness == Brightness.light,
-                    onChanged: (value) {
-                      Provider.of<ThemeModel>(context, listen: false)
-                          .toggleTheme();
-                    },
-                  ),
-                )
-              ],
-            ),
-          )),
-    );
-  }
-}

lib/theme.dart

@@ -1,15 +1,13 @@
 import 'package:flutter/material.dart';
 
-ThemeData darkTheme = ThemeData(
+ThemeData darkTheme = ThemeData.dark().copyWith(
   primaryColor: const Color(0xff131618),
   accentColor: Colors.white,
-  brightness: Brightness.dark,
   textTheme: const TextTheme(bodyText2: TextStyle(color: Color(0xffffffff))),
 );
 
-ThemeData lightTheme = ThemeData(
+ThemeData lightTheme = ThemeData.light().copyWith(
   primaryColor: Colors.white,
   accentColor: Colors.green,
-  brightness: Brightness.light,
   textTheme: const TextTheme(bodyText2: TextStyle(color: Colors.green)),
 );