Confirm Existence of Directory?

[11140]

I want to confirm existed directory and create a subdirectory.
I am using android 22.
"_vMTO" folder is existed, but app said "no".

my App is working well under ver.7 of Adroid, but not work on ver.22.

[TIMAI2]

Android 22 ? Do you mean 5.0 / 5.1 ?

[Anke]

@11140

I am using android 22.
"_vMTO" folder is existed, but app said "no".

The File component uses/needs a relative path:
FileScope = Legacy (or Shared)
path = /_vMTO"

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"my App is working well under ver.7 of Adroid"
No.

[Taifun]

You can't access arbitrary directories in the root directory of the emulated sdcard anymore (EDIT: anymore = newer devices)

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.a…

Use shared storage, for example /Download

Taifun

[Anke]

@Taifun

You can't access arbitrary directories in the root directory of the emulated sdcard anymore

Of course, he can:

1. If the used Android version is less than 11 (as it seems to be in his case), he can access all files/directories (wiih READ permission).
2. On Android 11+ he can access all media files from any location (wiih READ permission if necessary)

[Taifun]

@11140

and create a subdirectory.

To be more specific, on newer devices you can't create subdirectories everywhere anymore... use shared storage and read the previously mentioned guide

Taifun

[11140]

@Anke

The File component uses/needs a relative path:
FileScope = Legacy (or Shared)
path = /_vMTO"

my android ver. is 14.

Thank you very much. It's working.

and other problems related same as I noted are existed.
Please advice me how to solve it.

[Taifun]

@11140

my android ver. is 14.
Thank you very much. It's working.

What exactly is working?
I don't think there is much working...
It looks like you forgot to read the previously mentioned guide

And if you use the FikeListAsync method, then you should continue with your blocks in the AfterFileListAsync event

@Anke

1. If the used Android version is less than 11 (as it seems to be in his case), he can access all files/directories (wiih READ permission).

You are on Android 14, so you can't access arbitrary directories anymore, use shared storage

@Anke

On Android 11+ he can access all media files from any location (wiih READ permission if necessary)

As you try to access non media files, you will need SAF for those non media files, which are not owned by your app

Taifun

[11140]

my app cannot shows file list of _vMTO.
Actualy three are two files(".txt"), but name says 0"

[Taifun]

@11140

my app cannot shows file list of _vMTO.

Yes, because

@Taifun

You are on Android 14, so you can't access arbitrary directories anymore, use shared storage

Use directory /Download/_vMto
This will work only for media files

Taifun

[11140]

Hi~
You mean TaifunFile.FileList is not working on Ver+14?

I tried it as your comment, a .txt file copied to /Download/_vMto , but it is not working.

Would you please advice me other solution?
It's very important for me.

[Taifun]

@11140

I tried it as your comment, a .txt file copied to /Download/_vMto , but it is not working

Yes, sorry, this is not working, because you are trying to access non media files, which are not owned by your app...

Therefore

@Taifun

As you try to access non media files, you will need SAF for those non media files, which are not owned by your app

Taifun

[Taifun]

Do you plan to publish your app in Google Play? If not, you also can consider this approach

How to request and grant MANAGE_EXTERNAL_STORAGE permission

In this guide I show you, how to request and grant → MANAGE_EXTERNAL_STORAGE on devices with Android 11+. Be aware that this permission is usually not granted by Google. However, let’s assume the app is only intended for private use or for special users or for other app stores. This permission must be declared in the Manifest (since it is not declared the Companion app you can't test this with Companion): <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"/> Here is a s…

Taifun

[11140]

@Taifun

Do you plan to publish your app in Google Play?

Hi~
Thank you very much for your attention.

My app is not published and it is made for private usage.

And I modified my App as advice bellow, but it's not working.
There are problems "External permission denied" still existed.

Would you like to provide a sample .aia for me?

[Taifun]

@11140

And I modified my App as advice bellow, but it's not working.

It would really help if you provided a screenshot of your relevant blocks, so we can see what you are trying to do, and where the problem may be.

To get an image of your blocks, right click in the Blocks Editor and select "Download Blocks as Image". You might want to use an image editor to crop etc. if required. Then post it here in the community.

Taifun

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Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.

[11140]

Hi~
Thank you so much ^,^

Finally, I want to set....
set.SpnFiles.ElementsFromString.to .......

I hope you give me nice solution.

Have a nice day~~~~

[Taifun]

After having received the permission then continue with your logic, i.e.move all those blocks into for example a button click event

Taifun