[Question] How can I move or copy files from the assets directory to Android /data/user/0/com.mycompany.flet_adb/files ?

[yst-one]

Question

How can I move or copy files from the assets directory to Android /data/user/0/com.mycompany.flet_adb/files ?

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• I have searched for answers to my question both in the issues and in previous discussions.

[Ultroncn]

For a packaged Android app, copy the bundled file into the app's private storage using Flet's paths, rather than hard-coding /data/user/0/...:

import os
import shutil
from pathlib import Path
import flet as ft


def main(page: ft.Page):
    # Example file bundled as assets/seed.db
    source = Path(os.environ["FLET_ASSETS_DIR"]) / "seed.db"
    destination = Path(os.environ["FLET_APP_STORAGE_DATA"]) / "app.db"
    destination.parent.mkdir(parents=True, exist_ok=True)
    if not destination.exists():
        shutil.copyfile(source, destination)
    page.add(ft.Text(str(destination)))


ft.run(main, assets_dir="assets")

The existence check prevents replacing an edited database on every launch. Copy the bundled seed; keep subsequent writes in the destination.

One distinction: FLET_APP_STORAGE_DATA is Flet's managed data subdirectory of the application-support directory, so this does not promise the file lands directly in the exact /files root you quoted. If another library specifically needs that root, resolve the support directory with await ft.StoragePaths().get_application_support_directory() in an async Flet handler/main and use that returned path instead.

The current assets guide documents FLET_ASSETS_DIR; the environment-variable reference describes the storage path and its relationship to StoragePaths. These are native packaged-app paths; the environment variables may be absent in other launch modes, and this is not a browser-web filesystem example. I checked the current documentation and file-copy behavior locally, but have not run this on an Android device.