Save and write to text or csv file

[alraakib (Rakib)]

I want to make an app in which user can save some text data and if required then update them.
and even there is another app in which user can import these data. so I need to save these text data to a file txt/csv in sd card or somewhere locally so user can import the file in another app!

so can someone help me with some blocks?

[bodymindpower (Anke)]

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>/ 1.2. The Private directory is /data/user/0/<packageName>/files/ This private directory can be used with the File component to save / read text (setting the path without a slash). It can only be accessed by your app and is automatically removed when the app is un…

SAF: App Inventor implementation of Storage Access Framework

1.Introduction Description: Basically AI2 wrapper of Storage Access Framework. Using this extension, you can get read and/or write access to a single document or tree document (and all of its children recursively). Latest Version: 1 Released: 2021-09-16T18:30:00Z (UTC) Last Updated: 2021-11-01T18:30:00Z (UTC) 2.Blocks [image] [image] [image] [image] [image] [image] [image] 3.Documentation Docs for: SAF Events DocumentCreatedEvent invoked after creating document.Returns d…

[alraakib (Rakib)]

I want to create a folder or file in “/storage/emulated/0/” but when I create directory “storage/emulated/0/myfolder”
It creates a directory in “android/data/package name/files” and then “storage/emulated/0/myfolder/”

Note: I’m currently using android12

[Still-learning (1-2-3-4...)]

@alraakib

want to create a folder

May be this is not possible. Android 10+ you must try to use ASD as mentioned in the above post by @bodymindpower . Detailed guide was added by them … you can check it out.

[alraakib (Rakib)]

Can I access another applications app specific directory by any chance??

Actually I need to use a shared file between two apps!

one app should generate the file and another app should read it!
and one more thing is the file is very important, so if the user clears app data the file should remain in the same place!

[Still-learning (1-2-3-4...)]

Have you checked this extension?

[F/OS] SharedDB - Store / Retrieve data between applications

SharedDB Shared db uses Shared Preferences in WORLD_READABLE mode which can make another applications read the data. For example if you store a value in Application1. It can be accessed ( Read only ) by Application which is not possible in normal Preferences. This extension is discontinued and won’t be getting any updates in the future. Notes Do Not use to Store Confidential/Important data in this DB. Other applications can also read the data. ( If you are storing information like this, …

Else why don’t you try some online storage applications like gsheet, baserow, airtable?? It depends upon your expectation…

[alraakib (Rakib)]

1.Is this SharedDB an online database?
No, It works using the SharedPreferences class like the TinyDB does. Your data is stored on

the device and will be cleared once uninstalled or if they clear the application data.

I may used sharedDB but if user uninstall or clear app data then all my data will be gone.

and i am not using online storage because I want to make the application fully offline

[Still-learning (1-2-3-4...)]

Then please be wait till Some other kodular who uses the same technique like you to reply…

Shareable offline app

As for i know, if user uninstall the app, all the data will be erased… anyhow let we wait… Android 10 above , i m not sure it will access specific folder for read and write… in such case if user deletes that folder accidentally what would happen?

[Taifun]

@alraakib

I want to create a folder or file in “/storage/emulated/0/”

What about reading the link by @bodymindpower to find out, that you only can create folders in shared storage or ASD?
BTW the mentioned extension SharedDB does not work anymore after SDK30…

Taifun