Some basics on Android storage system

I have try this
but permission is not in label2 so i have no pemission1.SdkVersion>30...

but here i can't read in shared...

We won't get any further like this.
Post the aia (or rather a simple test aia) and the blocks.

is this not simple enougth ?
it just write check and read the file ! I don't know how do simplest...

Try this one:
shared_File_2.aia (34.2 KB)

It will not work on Android 11+ because of the known bug of the File comp. regarding storage permissions. Use instead my MFile ext. works fine, but i have to say that i'm surprised :
file is saved in shared (which is emulated/0) and it is read in Legacy !
how strange is it !
I just can thank you again (and lot) for your help, but i'm disappointed because i don't understand...

There is nothing to understand. It's just another bug (often mentioned by me). And there are some with the File comp.

For more details on this, read here:

Well... i have read so many posts on storage that i am completly confused !
This point is particulary complicated in Android: it depends on the version on the scope, if you use / // or no /, each time it use a différent path and possibilities (read,write, permissions...)

for my mind this type of presentation find in your last link is the more readable to understand and memorise all informations:
unfortunatly it is a first try and not all informations i talked are in...
maybe we need one for each android version.
I will try to build such a table, but for now i'm afraid to not have enougth informations, not have a good understanding about all of this and i'm too confused...

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and now your goal is to confuse everyone?
in your screenshots you are using the file component, now you are talking about blank images? the purpose of the file component is to work with text files!
your table does not help anyone...
if there are any doubts, then why not providing a screenshot of some relevant blocks... also tell us what you are expecting and what happens instead


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? why are you talking about blank image ?
it is not the same for other files ?
maybe i missunderstood..sorry.

oh year ! that's it ! very clear!
just missing behaviour in removable SD card.

And I did:

A post was split to a new topic: Looking for a solution to record information I get from my device with ESP32

I removed the overview because @Taifun felt it would confuse rather than clarify.
And I also had my doubts as to whether it was really helpful.

There is no way to write to a removable (micro) SD card with AI2 (also not on Android < 4.4 / KitKat with any Scope). There is also no way AFAIK to read from it with any Scope. You must use one of the File extensions from @Taifun or @vknow360 to get the path to a MicroSDcard.

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no problem. it was just to illustrate what i said

A post was merged into an existing topic: Take a screenshot



The Total Commander File Explorer app now provides access to the ASD files folder for installed apps on Android 13. This is only recently updated to do so.

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Ok, didn't this work before on Android 13?

No, it didn't. TC has just updated to allow this.

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5 posts were split to a new topic: How to open a csv?

5 posts were split to a new topic: Take a screenshot and share it / storage