add pub in update event

covas_mobile/lib/pages/UpdateEventImage.dart

@@ -16,7 +16,12 @@ import '../classes/eventAdded.dart';
 
 import '../variable/globals.dart' as globals;
 
-void main() {
+import '../classes/ad_helper.dart';
+import 'package:google_mobile_ads/google_mobile_ads.dart';
+
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  await MobileAds.instance.initialize();
   runApp(MyApp());
 }
 
@@ -45,6 +50,8 @@ class UpdateeventImage extends StatefulWidget {
 
 class _UpdateeventImageState extends State<UpdateeventImage>
     with ShowAlertDialog, ShowEventDialog {
+  BannerAd? _bannerAd;
+
   TextEditingController inputName = TextEditingController();
 
   TextEditingController inputDate = TextEditingController();
@@ -308,8 +315,13 @@ class _UpdateeventImageState extends State<UpdateeventImage>
 
   @override
   void initState() {
-    start();
     super.initState();
+    AdHelper.createBannerAd(() => setState(() {})).then((ad) {
+      setState(() {
+        _bannerAd = ad;
+      });
+    });
+    start();
   }
 
   final _formKey = GlobalKey<FormState>();
@@ -426,6 +438,12 @@ class _UpdateeventImageState extends State<UpdateeventImage>
           child: SingleChildScrollView(
             child: Column(
               children: <Widget>[
+                _bannerAd == null
+                    ? SizedBox.shrink()
+                    : SizedBox(
+                        height: _bannerAd!.size.height.toDouble(),
+                        width: _bannerAd!.size.width.toDouble(),
+                        child: AdWidget(ad: _bannerAd!)),
                 Padding(
                   padding: const EdgeInsets.only(top: 60.0),
                   child: Center(