Android: Delete app associated files from external storage on Uninstall?

Question

It\'d be convenient if an application I\'m writing stored some files to external storage permanently (so they persist after the application has been exited[destroyed]), but

Answer 1

actually it is possible .

android will automatically remove files of the app in the external storage , but the files must be inside a specific path of the app :

"...../Android/data/APP_PACKAGE_NAME/"

where APP_PACKAGE_NAME is the application's package name. another path that is automatically being emptied is :

"...../Android/obb/APP_PACKAGE_NAME/" where APP_PACKAGE_NAME is the application's package name.

the data is for anything you wish. the obb folder is for huge files that are downloaded using the play-store and the apk extension library . you are not supposed to create files there .