Android Question New Android permissions?

[yeroen]

I am working on an app in which the user must be able to save created files with this app.
The user must also be able to save these files to an external device, such as an SD card.
But whatever I do, I do not want to succeed: You can not save the files created with my app to an external device (sd-card, USB).
It cost me a lot of wasted time to find out that this is no longer possible in the current Android versions.
I'm an amateur. Perhaps I should have known this before.
Did I miss something?
Anyway it's remarkable.

 

[Computersmith64]

You need the WRITE_EXTERNAL_STORAGE permission -> https://developer.android.com/training/data-storage/files.html

- Colin.

 

[NJDude]

You have 2 choices, either handle the Permissions or just target SDK <=22 in your manifest.
Like this:

(<uses-sdk android:minSdkVersion="16" android:targetSdkVersion="22"/>

 

[Erel]

You have 2 choices, either handle the Permissions or just target SDK <=22 in your manifest.

It will not help with sd cards.

There is only a single specific folder that you can access on the sd card. You can find it with RuntimePermissions.GetAllSafeDirsExternal

 

[yeroen]

Thank you Erel.
The user can now save at least a file created in my app to the sd-card.
The file will then appear:
/storage/3437-391/Android/data/b4a.example/test.txt
This is the file <test.txt> stored by the user at sd-card.
But for an average user that is hard to find.
Is there a possibility to make this easier?
Now i use the FileDialog for the user to look for maps and files.

 

[Erel]

This is your best option. You can use FileProvider to access other folder but it is more complicated and doesn't work in all versions.