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Change Android Package Name Manually

Changing the Android package name manually is a more involved process, but it gives you full control. Here are the steps to do it:

1. Update build.gradle

  1. Open android/app/build.gradle.

  2. In the defaultConfig block, change the applicationId to your new package name.

    defaultConfig {
    applicationId "com.yourcompany.yourapp"
    minSdkVersion 21
    targetSdkVersion 33
    versionCode 1
    versionName "1.0.0"
}

2. Update AndroidManifest.xml

You need to update the package name in three AndroidManifest.xml files:

  • android/app/src/main/AndroidManifest.xml
  • android/app/src/debug/AndroidManifest.xml
  • android/app/src/profile/AndroidManifest.xml

In each of these files, update the package attribute in the <manifest> tag to your new package name.

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.yourcompany.yourapp">

Also, in android/app/src/main/AndroidManifest.xml, make sure that the android:name attribute in the <activity> tag is correct. It should be ".MainActivity".

3. Update MainActivity.kt (or MainActivity.java)

  1. Navigate to android/app/src/main/kotlin (or android/app/src/main/java).
  2. The directory structure should reflect your new package name. For example, if your new package name is com.yourcompany.yourapp, the directory structure should be com/yourcompany/yourapp.
  3. Rename the directories to match your new package name.
  4. Open MainActivity.kt (or MainActivity.java).

  5. Update the package declaration at the top of the file to your new package name.

    package com.yourcompany.yourapp

4. Clean and Rebuild

  1. In your terminal, run flutter clean.
  2. Then, run flutter run to rebuild your app with the new package name.

(Please note that the file paths and package names in your project may be slightly different. The images below show an example of what to look for.)

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