SAF: App Inventor implementation of Storage Access Framework

patel · January 21, 2022, 6:22am

I can see all text files with this block
block1
but I want see only csv

vknow360 · January 21, 2022, 8:56am

Try setting text/csv as extra mime type.

patel · January 21, 2022, 7:06pm

text/csv was my first attempt with no results

Oliver_Paulus · January 28, 2022, 1:30pm

Did you solve that? I have exactly the same issue, cannot upload CSV files. I tried like this, but all csv files in my storage show greyed out:
grafik

Oliver_Paulus · January 28, 2022, 2:16pm

ah, it worked now for me with the following block (no clu which of the mime types in the block worked and I am too lazy to check one by one):
grafik

ChrisWard · January 28, 2022, 6:09pm

A lot of discussion here, which shows how useful SAF is.

SAF was introduced @ Android 4.4, API 19 (Thanks Johannes_Ai2)

However, An App using the SAF extension will not install on an Android 4.4 Device:

Johannes_Ai2 · January 28, 2022, 6:23pm

patel · January 28, 2022, 6:28pm

thank you, it works with text/comma-separated-values

11191 · January 31, 2022, 8:54pm

Is any way to get uri of USB drive automatically after it plugged in exists?

vknow360 · February 1, 2022, 4:55am

Not the best idea, but yet it is possible in this way.

com.sunny.usb.aix (7.2 KB)

11191 · February 1, 2022, 6:30am

Wow. Usb detector.. I didn't see this extension before. Thank you very much.

11191 · February 2, 2022, 6:09pm

Sorry, but still not undesrtand, how uri obtained automatically in your example. As I understand, OpenDocumentTree did that, but do I need to open file manager and choose file to get GotUri event result? Or AvailableStorage directories? But, the last one shows direct links, not the uriString.

vknow360 · February 3, 2022, 1:50am

Yes it is not possible to get mounted path of USB automatically so we need user to pick the drive himself. You can try saving the uri in tinyDb but I am worried if Android will mount usb to same location next time.

11191 · February 3, 2022, 7:44am

Your UsbDetector - is a miracle, really.

As a result, after around 5 seconds after usb drive attached, video on my usb drive starts to play automatically. As I understand, it will not work after particular version of Android, but Android 7 allow to do that. 8 - no. My device controlled by Android 7 (single-board computer), so I solved this part of my issue, thank you very much.

Btw, it worked on Android TV too (if version below 8)

zmd94 · February 20, 2022, 1:22pm

Hi @vknow360. Can you tell, this extension can support from which android version?

The minimum requirement android version to use this extension? Many thanks.

vknow360 · February 20, 2022, 1:23pm

Hi @zmd94 ,
Extension works on Android 5 and above versions.

zmd94 · February 20, 2022, 1:24pm

Alright. Thank you for the clarification.

zmd94 · February 20, 2022, 1:33pm

Next question, I can't find how to use this extension to check whether the required file is exist? Can you tell me how?

vknow360 · February 20, 2022, 1:36pm

Sorry to ask, but can you tell why and for what you want to use SAF?
I am sure this will help in solving your query.

zmd94 · February 20, 2022, 1:47pm

I want to check whether file is exist in user Download folder. Next, I want to move it into app specifir dir.