Android Question Let the folder choose, rigth way?

[mw71]

Hi

I have a B4A Activity app.
I want to let the user select a folder where I can then write a file (SQLite).
I'm not sure whether SAF (https://www.b4x.com/android/forum/threads/externalstorage-access-sd-cards-and-usb-sticks.90238/)
or SaveAs (https://www.b4x.com/android/forum/t...list-of-other-related-methods.129897/#content)
is the right way to do this.

 

[Erel]

SaveAs (ContentChooser) - Lets the user pick a destination for the currently resource that is being saved.

ExternalStorage - A mechanism for the user to grant access to your app to a specific folder.

Sounds like you need ExternalStorage.

Notes about SQLite:
1. Use XUI.DefaultFolder for the database and copy it when needed. You cannot open a db with ExternalStorage or SaveAs.
2. Set the journal mode to DELETE: https://www.b4x.com/android/forum/threads/b4x-sql-setting-the-journal-mode.136211/#content

 

[mw71]

Thanks for your reply, Erel.

I should have specified "write a file (SQLite)" more precisely.
I use File.DirInternal to write to and use the file.
Then, I would like to copy the file for backup and sharing purposes.

I will also take a look at ExternalStorage.

Thanks also for the tip about Journal Mode.

 

[Erel]

Then, I would like to copy the file for backup and sharing purposes.

Sounds like a good use case for SaveAs. Let the user decide where the file is backed up. Maybe to their Google Drive for example.