In Android Studio, you can do this:

For example, if you want to change to, then:

  1. In your Project pane, click on the little gear icon ( Gears icon )
  2. Uncheck / De-select the Compact Empty Middle Packages optionCompact Empty Middle Packages
  3. Your package directory will now be broken up in individual directories
  4. Individually select each directory you want to rename, and:
  • Right-click it
  • Select Refactor
  • Click on Rename
  • In the Pop-up dialog, click on Rename Package instead of Rename Directory
  • Enter the new name and hit Refactor
  • Click Do Refactor in the bottom
  • Allow a minute to let Android Studio update all changes
  • Note: When renaming com in Android Studio, it might give a warning. In such case, select Rename AllEnter image description here
  1. Now open your Gradle Build File (build.gradle – Usually app or mobile). Update the applicationId in the defaultConfig to your new Package Name and Sync Gradle, if it hasn’t already been updated automatically:Refactor Directories
  2. You may need to change the package= attribute in your manifest.
  3. Clean and Rebuild.Clean and Rebuild
  4. Done! Anyway, Android Studio needs to make this process a little simpler.