Android Question WRITE_EXTERNAL_STORAGE permission

Sergey_New · Tuesday at 8:17 AM

How can I set this permission if targetSdkVersion 33, and then create a “MyApplication” folder?
With targetSdkVersion 29 it was easy.

DonManfred · Tuesday at 9:56 AM

Use https://www.b4x.com/android/forum/threads/externalstorage-access-sd-cards-and-usb-sticks.90238/

Sergey_New · Tuesday at 10:44 AM

DonManfred said:
Use

Thanks, I'll look into it.

ac9ts · Tuesday at 1:11 PM

See here and the follow up here

Sergey_New · Tuesday at 3:53 PM

ac9ts said:
See here and the follow up here

Thanks for the links!

Sergey_New · Tuesday at 3:59 PM

I only need to create a folder with the application name given. I don’t understand where you can insert this name in example Externalstorage ?

alfaiz678 · Tuesday at 8:28 PM

Sergey_New said:
I only need to create a folder with the application name given. I don’t understand where you can insert this name in example Externalstorage ?

When you use the Externalstorage Library and summon the SelectDIR event, it will open a dialog box that allows the user to determine the virtual folder that the application can always access without asking the user to select the folder again, unless the folder or application is deleted.

Sergey_New · Tuesday at 8:37 PM

alfaiz678 said:
it will open a dialog box

I understood it. But I would like to do without dialogue and immediately indicate the name of the folder.

ac9ts · Wednesday at 1:08 PM

Sergey_New said:
I understood it. But I would like to do without dialogue and immediately indicate the name of the folder.

It's a security thing with Android. The application can't automatically use a directory. The user needs to give the application permission to use it.

Sergey_New · 2024-07-06T21:39:58+0100

In the Externalstorage example I added a button to read the created folder named "123".

B4X:

Private Sub Button1_Click
  Dim lstFiles As List = File.ListFiles(File.DirRootExternal & "/123")
  ToastMessageShow("Number of files: " & lstFiles.Size, True)
End Sub

Regardless of whether there are files in this folder, lstFiles.Size=0.
What did I do wrong?

Android Question WRITE_EXTERNAL_STORAGE permission

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