Flutter - change PRODUCT_BUNDLE_IDENTIFIER in 2020

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20200920  

1.app / build.gradle defaultConfig 

defaultConfig {
    applicationId "co.yourName.appName"
2.app/src/main/AndroidManifest.xml 
3.app/src/debug/AndroidManifest.xml  
4.app/src/profile/AndroidManifest.xml  
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="co.yourName.appName">
5. app/main/kotlin/co/yourName/ newName 
6.app/main/kotlin/co/yourName/ newName/ MainActivity.java 
package co.yourName.appName;
7.pubspec.yaml
name: appName
8. lib all dart file  change appName
9.Runner.xcodeproj / project.pbxproj    (there are 3 PRODUCT_BUNDLE_IDENTIFIER) must be changed.)
PRODUCT_BUNDLE_IDENTIFIER = co.yourName.appName;
10. terminal flutter clean
11. File >Invalidate Caches/Restart...
👍done

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