Android Question Permissions in B4XPage

[Sergey_New]

I'm trying to set permission in the Main module. The permission is set, and then I need to create a folder with the name of the application. The folder is not created.

Sub Activity_Create(FirstTime As Boolean)
    Dim pm As B4XPagesManager
    pm.Initialize(Activity)
    rp.CheckAndRequest(rp.PERMISSION_WRITE_EXTERNAL_STORAGE)
    Wait For Activity_PermissionResult (Permission As String, Result As Boolean)
    If Result Then
        File.MakeDir(File.DirRootExternal, "MyPages")
    Else
        Log("No permission!")
    End If
End Sub

What can I do?
Example attached.

 

[Sergey_New]

Found how to do it: How to quickly load a B4XPage without showing MainPage
Thanks to everyone for participating!