Android 11 and Storage-File

[Anke]

Problem with July 30 2020 Version: nb184 no longer able to write and read files

No, it is written to the app-specific directory (ASD): Companion: /storage/emulated/0/Android/data/edu.mit.appinventor.aicompanion3/files compiled app (APK): /storage/emulated/0/Android/data/<packageName>/files Cause: The file component (for API level ≥ 29) adds the ASD path to the beginning of each path that you declare. If I save a text in the ASD [grafik] this path is returned (but doesn't exist and cannot be created): /storage/emulated/0/Android/data/edu.mit.appinventor.aico…

Some basics on Android storage system

From an Android point of view there are an → Internal Storage and an → External Storage . 1. Internal Storage The Internal Storage can only be accessed with a rooted device. 1.1 The app package is saved in /data/data/<packageName>/ In order to be able to debug your app, AI2 saves the assets for → Companion on devices with Android ≥ 10 (API ≥ 29): /storage/emulated/0/Android/data/edu.mit.appinventor.aicompanion3/files/assets/ Android < 10 : /storage/emulated/0/Android/data/edu.mit…

Download Multiple Files with subfolders

There are a lot of file managers, which can also access the ASD: Why, for what purpose? Why does the user need to know the file / directory structure?

Download Multiple Files with subfolders

You can implement this File Explorer into your app. I adapted the paths to your ASD. It only displays pdf files and folders and is limited to the "kundc" folder, where you downloading folders and files to. FileExplorer.aia (87.7 KB) [blocks - 2021-05-17T185437.937] You need to add these extensions: https://puravidaapps.com/file.php https://aix.colintree.cn/en/extensions/ColinTreeListView.html You also need to pull icons from resources and add them to your app.