packagename

android/app/bin/src/main/AndroidManifest.xml

@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.flutterrookiebook">
+    package="com.example.fluttergo">
 
     <!-- The INTERNET permission is required for development. Specifically,
          flutter needs it to communicate with the running application

android/app/build.gradle

@@ -33,7 +33,7 @@ android {
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "com.example.flutterrookiebook"
+        applicationId "com.ali.fluttergo"
         minSdkVersion 16
         targetSdkVersion 27
         versionCode flutterVersionCode.toInteger()

android/app/src/main/AndroidManifest.xml

@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.flutterrookiebook">
+    package="com.ali.fluttergo">
 
     <!-- The INTERNET permission is required for development. Specifically,
          flutter needs it to communicate with the running application

android/app/src/main/java/com/ali/fluttergo/MainActivity.java

@@ -1,4 +1,5 @@
-package com.example.flutterrookiebook;
+package com.ali.fluttergo;
+
 
 import android.os.Bundle;
 import io.flutter.app.FlutterActivity;