android copy folders from assets to internal device app data folder

I created two folders inside assets ("images" and "files") both containing some files. I need to copy it when first launch to data/data/com.relatedPackage.myApp keeping same name and same file contents. I am an iOS programmer and that os does not allow to copy whole folders so, in android, which is the proper method to do it?

Possible to copy whole folder "images" (including its files) from assets to data/...? That would be great.
If not, should I create first empty folders using same names at data/... and then copy files from assets to current? In this case would be necessary to list all files inside folders in order to copy to data/...? Thank you.

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