step 25 : ganti icon apk

app_petty_cash/lib/main.dart

@@ -8,6 +8,9 @@ import 'app/route.dart';
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
   initializeDateFormatting();
+  await SystemChrome.setPreferredOrientations([
+    DeviceOrientation.portraitUp,
+  ]);
   SystemChrome.setSystemUIOverlayStyle(const SystemUiOverlayStyle(
     statusBarIconBrightness:
         Brightness.dark, // this will change the brightness of the icons