Change package name on a React Native app

README.md

1. Changed project' subfolder name from: "android/app/src/main/java/<com.old_id>/" to: "android/app/src/main/java/com.new_id/"
2. In android/app/src/main/java/MY/APP/com.new_id/MainActivity.java:, change:

package com.new_id;

3. In android/app/src/main/AndroidManifest.xml, change:

package="com.new_id"

4. In android/app/build.gradle, change:

applicationId "com.new_id"

5. In android/app/BUCK, change:

android_build_config(
  package="com.new_id"
)
android_resource(
  package="com.new_id"
)

6. In android/app/src/main/res/values/strings.xml, change app_name to com.new_id
7. Run ./gradlew clean