@taifun
You mentioned the obvious,maybe is my pc that has problems, but thank you anyway:
I'm happy to announce that I won't be bothering you anymore for a while, as I've achieved one of my goals.
I solved the write and read on the phone problem, thanks also (in Italian also means anche) to ANKE.
With its app, which after 1,000 attempts to get it to run well on my Android 14, I've transformed like this. creafileANKE x andr14.aia (63.1 KB)
I took a quick look at your AIA. I'm not entirely sure what it's about. Saving a text file with my MFile extension to external storage (not ASD) requires a full path (file:///storage/emulated/0/...). The same applies to the MFile.ReadFrom method. The File:Exists method incorrectly requires READ permission. So replace it with the MFile.Exists method.
In fact, everything should be possible once MANAGE_EXTERNAL_STORAGE is granted.
If I hadn't tested the app and wasn't 100% sure it worked, I wouldn't have even posted it. @Anke I think this app could be useful for those with Android 14 and a Motorola Edge 40 Neo, because I think the steps vary depending on the model. This app does everything on its own, and it's the only system that worked for me after all the tests I did. and I left the app permission button visible because it sometimes gives error messages even if it works correctly.And I think it could help beginners like me understand how file reading and writing works on Android (with Documents or Downloads, there's no way to work, not even with Manage External Storage).
And...sorry, but I don't even think about changing something that works. I'd like to take this opportunity to thank you (@Anke for the app I copied from you), and I'd also like to thank @Taifun for the extensions I used, and @TIMAI2 for all the criticisms and advice they gave me. I'm sorry, but it's not my fault if I have Android 14 and a phone with a lot of problems.