Save file to internal storage

[filipeedensilva]

Is there a way to save to internal storage?

[Taifun]

Yes you can

You might want to elaborate, what exactly you are trying to do...

See also

How to ask a question (open new topic)

Before you ask a question / open a new topic please take care of the following points: The forum was previously searched for similar topics / issues. Give a precise (detailed) description of the issue / bug, the goal. Show the (relevant) blocks (images, screenshots of blocks in high quality). Debug your blocks (connect to Companion and right mouse click: → Do it). Name the Android / iOS version running on your (test) device. Do not open multiple threads on the same topic. If you haven't al…

Taifun

[filipeedensilva]

I am trying to create a csv file for my app but it won't create the file. I have seen a lot of forum threads and have found no solution. Please help me! I don't have an sd card on my phone so I don't know if that is the reason why or not. But here is my code and I wanted to know if there is anything wrong with it.

[Anke]

@filipeedensilva

internal storage?

Read this first to understand the difference between external and internal storage and then specify your question.

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…

[filipeedensilva]

Okay, I am creating an app that creates football (soccer) statistics. I capture the 1st and 2nd half stats and add them to a label that is then created into a csv file.

I have tried creating the file but it hasn0t worked yet.

[Taifun]

You are not able to store in arbitrary directories anymore... try storing to shared storage... for example /Download

Taifun

[filipeedensilva]

Okay, I changed the directory to /Document, that should be okay yes? And the DefaultFileScope shoulb be set to shared right?

[filipeedensilva]

Thank you! I understand now what External storage means

[ChrisWard]

Hello Filipe

Google introduced security measures that prevent Apps making their own directories/files on SD. Where you save your file depends on it's purpose. If it is to be read on your device by another App, it needs to be saved to a shared directory. If it is only for your App to read, save it in the ASD (App Specific Directory).

Guide:

Save a text file or an image (Canvas) in the ASD & share it on all Android versions

How to save a file (text, Canvas: image) read and share it on all Android versions. [grafik] Note: You cannot share a text file from the → Private dir (internal storage): /data/user/0/<packageName>/files/

HOWTO: Get Application Specific Directory -ASD (where one exists) without Extensions

A little trick/tip.... Drag out a canvas to your project, set it to 1x1 pixels in size, but keep it visible. Drag out a File component Use these blocks... [blocksgetASD] Works in Companion and for compiled apps, tested on Android 10 (should work across all android versions....returning the root of the sdcard in pre 10) The ASD did not exist before Android 10.

[Anke]

@filipeedensilva

Okay, I changed the directory to /Document, that should be okay yes?

Should be /Documents.

[filipeedensilva]

Yes, you're right. I misspelled the word.

[Anke]

@filipeedensilva

And the DefaultFileScope shoulb be set to shared right?

No, it must be Legacy, because on Android 11+ WRITE permission must also be (incorrectly) declared in the Manifest. And this is the only option that does this.

Or you can use my MFile extension.

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 …

Search the forum, I've pointed out this bug countless times and how to work around it.

[filipeedensilva]

I'm going to use the MFile extension, it seems better to use. Could you please explain to me what I have to do to make it work?

[Anke]

@filipeedensilva

Could you please explain to me what I have to do to make it work?

Take a look at the blocks I've shown in the description of the extension:

[filipeedensilva]

Sorry for asking but what does the mfile.sdkversion mean?

[Anke]

@filipeedensilva

what does the mfile.sdkversion mean?

API level (Android version) of the device.
Example: If API < 30 (Android < 11), then ask for WRITE permission.

[Anke]

Read this for deeper understanding:

How to access non-media & media files on Android 11+

Access to non-media files on Android 11+ On Android 11+, non-media files (like txt, pdf, csv, ...) can be accessed if and only if the text files are in the → ASD or in the → Private dir (i.e. were saved there), or the text files are in one of the Shared folders /Documents or /Download and these files were created by the app itself, or SAF is used, or MANAGE_EXTERNAL_STORAGE* permission is requested and granted. *` This is not really an option, because an app that requests this permi…

[ChrisWard]

@filipeedensilva

I have another question, it's not really related to this but it's still related to my app. The screen orientation is set to horizontal on the entire app but everytime I change screen, the screen orientation goes vertical and then instantly goes horizontal, and because of that it sort of glitches for half a second in between screens. Is there anyway to fix this?

Create a new Forum Topic for this issue Filipe.