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Android App - Cloning Project

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  1. Using Windows Explorer, navigate to the Android Studio projects directory select the project folder to be cloned;
  2. Copy the selected folder; Paste the folder into the Android Studio (AS) projects directory;
  3. Rename the pasted folder to be the new name of the cloned project, say ‘ViewPager_Shell’;
  4. Launch Android Studio; Select ‘Open an existing Android Studio project’;
  5. Navigate to the AS projects directory; Select the folder ‘ViewPager_Shell’;
  6. Ensure that AS’s explorer pane is visible on the left-hand-side of the AS main frame;
  7. Select the ‘Android’ view for the explorer pane;
  8. Open app -> java;
  9. the old package name should now be visible, e.g. ‘com.hulme.owm’;
  10. Right-click on the old package name and select ‘Refactor -> Rename’;
  11. A dialog should now appear; left-click ‘Rename Package’;
  12. In the pop-up dialog, replace the old package (e.g. ‘owm’) with the new package name (e.g. viewpager_shell);
  13. Left-click on the ‘Refactor’ button;
  14. BEWARE!! … A new ‘Find Factoring Preview’ pane should open in the lower-left of the AS main frame window; Select ‘Do Refactor’;
  15. Using the AS explorer pane, navigate to ‘Gradle Scripts -> build.gradle(Module:app);
  16. Double-click build.gradle(Module:app) to view its contents in the AS editor pane;
  17. Change the defaultConfig ‘applicationID’ string to your new full package path (e.g. “com.hulme.viewpager_shell”);
  18. Using the AS explorer pane, navigate to ‘app -> manifests -> AndroidManifest.xml’;
  19. Double-click on ‘AndroidManifest.xml’ to view it in the AS editor pane;
  20. Under the manifest tag, you should observe that the new package name (e.g. ‘com.hulme.viewpager_shell’) now appears, as a result of the previous refactoring step; Under application tag, change android:label to a new name (e.g. “ViewPager Shell Demo”) - this is the name that appears in the list of installed apps provided by Android’s ‘Settings -> Application manager;
  21. Under activity tag, change android:label to a new name (e.g. “VP Shell”) - this is the name that appears under the app’s icon and it is also the activity’s default ActionBar title;
  22. You should now be able to build and run the newly cloned project.

http://stackoverflow.com/questions/29045964/android-studio-how-to-copy-a-project
** EXTRA STEP NEEDED
package_name must match what’s in your manifest file. you can find the google-services.json file if you look in the example photo below.