Hey @tsonevn,
Sorry for asking this as an issue here.
Thanks for this info. I want further info on this,
I am having two questions.
Question 1 :
By using android.os.Environment.DIRECTORY_********* , We can refer the android filesystem's default internal storage directories as below, but its not showing Documents folder!

In this, how can access android's default Documents folder?
And why its not consider the Documents directory?
Question 2 :
I want create the new folder in android's internal storage root directory for hold my app related files.
like i created manually the folder in my testing device,

How can i create this?
Thanks,