Saving textfile in ASD (android 10)

TIMAI2 · November 18, 2020, 2:39pm

It is the same file, using two different paths

patel · November 18, 2020, 3:15pm

I can not understand, for me 2 paths = 2 files, however you did not explain me why 2 paths, maybe for compatibility with older versions ?

TIMAI2 · November 18, 2020, 3:23pm

In Android, in some situations, and with some components,

/storage/emulated/0/

and/or

/mnt/sdcard/

take you to the root of the external virtual sdcard of the device.

The second part of your path takes you to the app ASD part.

TIMAI2 · November 18, 2020, 3:27pm

If I was looking to travel to London, the path I would take would all depend on where I started from.

And as my grandfather used to say when people stopped to ask directions:

Traveller: How do I get to London?
Grandfather: Where have you come from?
Traveller: Bristol
Grandfather: Well I wouldn't have started from there......

patel · November 18, 2020, 3:35pm

Is it the same in Linux ?

TIMAI2 · November 18, 2020, 3:43pm

Not to my knowledge, but there are probably many soft and hard links in the file system which provide different paths to the same file.

patel · November 18, 2020, 3:49pm

Then only one file have been generated, when can I use /mnt/sdcard/ to access and when /storage/emulated/0/ ?

TIMAI2 · November 18, 2020, 3:55pm

I would recommend using /storage/emulated/0, this is the more reliable path

Anke · November 18, 2020, 4:05pm

See here:

patel · November 18, 2020, 5:59pm

When I try to read the textfile from /storage/emulated/0/ I receive a File not found error.
When I try to share the textfile from /storage/emulated/0/ all OK.
It's not easy to work with files.

Anke · November 18, 2020, 7:15pm

patel · November 19, 2020, 9:28am

File component need relative path
All other components (canvas, share,...) need absolute path
Is it correct ?

Patryk_F · November 19, 2020, 1:26pm

AI2 is made by many programmers. How a component works depends on the developer who worked on the component. Depends on how the PATH declared.
The colors are also not uniform. Different in the designer, different in blocks. It makes the work a bit difficult, but you need to get used to it

vknow360 · November 19, 2020, 1:34pm

Sorry, did you mean AI2?

Yes, it is correct.

Patryk_F · November 19, 2020, 1:36pm

Yes . I corrected.

Anke · November 19, 2020, 2:53pm

No.

No.
Canvas for example also needs the relative path.

If you use e.g. this (absolute) path:
/storage/emulated/0/image1.jpg

the image is save here (API < 29):
/storage/emulated/0/storage/emulated/0/image1.jpg

Anke · November 19, 2020, 2:59pm