modify screenOrientation. and refactor matrial app

android/app/src/main/AndroidManifest.xml

@@ -10,7 +10,8 @@
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
-            android:windowSoftInputMode="adjustResize">
+            android:windowSoftInputMode="adjustResize"
+            android:screenOrientation="portrait">
             <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user
                  while the Flutter UI initializes. After that, this theme continues

lib/app.dart

@@ -0,0 +1,38 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:calculator/view/calculator_view.dart';
+
+import 'utils/themes/app_theme.dart';
+import 'viewmodel/theme_provider.dart';
+
+class MyApp extends ConsumerWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final theme = ref.watch(themeProvider);
+
+    return ScreenUtilInit(
+      designSize: const Size(360, 690),
+      minTextAdapt: true,
+      splitScreenMode: true,
+      builder: (_, child) => MaterialApp(
+        builder: (context, widget) {
+          final mediaQueryData = MediaQuery.of(context);
+          final scaledMediaQueryData = mediaQueryData.copyWith(
+            textScaler: TextScaler.noScaling,
+          );
+          return MediaQuery(
+            data: scaledMediaQueryData,
+            child: widget!,
+          );
+        },
+        theme:
+            theme == ThemeEnum.dark ? AppTheme.lightTheme : AppTheme.darkTheme,
+        debugShowCheckedModeBanner: false,
+        home: const CalculatorView(),
+      ),
+    );
+  }
+}

lib/main.dart

@@ -1,47 +1,11 @@
-import 'dart:async';
-
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
-import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:calculator/cache/cache.dart';
-import 'package:calculator/view/calculator_view.dart';
 
-import 'utils/themes/app_theme.dart';
-import 'viewmodel/theme_provider.dart';
+import 'app.dart';
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await CacheData.cacheDataInit();
   runApp(const ProviderScope(child: MyApp()));
 }
-
-class MyApp extends ConsumerWidget {
-  const MyApp({super.key});
-
-  @override
-  Widget build(BuildContext context, WidgetRef ref) {
-    final theme = ref.watch(themeProvider);
-
-    return ScreenUtilInit(
-      designSize: const Size(360, 690),
-      minTextAdapt: true,
-      splitScreenMode: true,
-      builder: (_, child) => MaterialApp(
-        builder: (context, widget) {
-          final mediaQueryData = MediaQuery.of(context);
-          final scaledMediaQueryData = mediaQueryData.copyWith(
-            textScaler: TextScaler.noScaling,
-          );
-          return MediaQuery(
-            data: scaledMediaQueryData,
-            child: widget!,
-          );
-        },
-        theme:
-            theme == ThemeEnum.dark ? AppTheme.lightTheme : AppTheme.darkTheme,
-        debugShowCheckedModeBanner: false,
-        home: const CalculatorView(),
-      ),
-    );
-  }
-}

test/widget_test.dart

@@ -5,9 +5,9 @@
 // gestures. You can also use WidgetTester to find child widgets in the widget
 // tree, read text, and verify that the values of widget properties are correct.
 
+import 'package:calculator/app.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:calculator/main.dart';
 
 void main() {
   testWidgets('Counter increments smoke test', (WidgetTester tester) async {