Looking for a solution to record information I get from my device with ESP32

[Anke]

@Maiko_Herrmann

When running again on Android 10 with this permission request at the top of the screen, the same error appeared and the file did not write, that is, the permission did not work in either of the two versions I tested, so I removed it from the project.

WRITE permission must be declared on ALL Android versions, even Android 11+, which of course is a bug (which I've mentioned countless times already). However, your app does not declare WRITE in the manifest at all (on any Android version). If you dragged my AllFilesPermission extension into your project (Screen1), the WRITE permission on Android < 11 would have been declared in the Manifest. Then it would have worked on all Android versions < 11.

Note: It is not necessary to request storage permissions. These are automatically requested with the file component.

There are two ways to make your aia work (on all Android versions):

1. Do what @Taifun suggested. However, the WRITE permission is then also requested on Android 11+ (which is of course nonsense, because firstly this permission is not necessary there and secondly it is no longer available on Android 11+.

2. Use my MFile extension. This way no storage permissions are requested on Android 11+ (as it should be). Of course, you don't have to use AllFilesPermission ext. then, since the storage permission with the MFile extension is correctly declared in the Manifest.

MFile - a modified version of Sunny's `EFile` extension - Shared folders - storage permissions - Android 11+

Here is a modified version of Sunny's EFile extension, which added some methods that are needed (among others things) for testing purposes with Companion & AKP. Because if you try to save in one of the Shared folders (/Documents or /Download) first with Companion it is not possible to do this without deleting the saved text file before testing with the APK and vice versa (at least on Android 11+). So the Delete & FileExists & API level methods are needed. The Delete method exists with the File …

Note: And use the correct path: /Download/... for this Shared folder.
(not /download/...).