How can I open/read from a file?

[fornakter]

I make file with data.
How can i open (read) from specific file?
I need to write filename
Search for this filename
Open if exist, or message if not.
I have something like that

[TIMAI2]

Use the File1GotText block to access the data read from the file.

for example:

[Anke]

@fornakter

I need to write filename

Show all relevant blocks, especially how you create the path (folder): /aaaa/.
The File component cannot create a (new) folder, but only save data (.txt) in existing dirs / folders.

[fornakter]

Its just simple foler, whit one i create. But not the folder is my problem, but searching for filename.

[Anke]

@fornakter

But not the folder is my problem

As I said:

@Anke

The File component cannot create a (new) folder, but only save data (.txt) in existing dirs / folders.

[fornakter]

Yes, i know.
I create this folder on phone. Folder exist.
Whats wy i say "folder its not my problem".
I use existing dir /aaaa.
Program create file with no problem on /aaaa

[dora_paz]

@fornakter

Open if exist, or message if not.

See below post

How do I check if a file exists?

Also @Taifun 's file extension provides exists block that checks whether a file or directory exists Image taken from Puravida Apps [image]

[Taifun]

if you get your solution running, it will stop working after App Inventor targets SDK30, because starting from then we will be able to save something only to the ASD - application specific directory...
so my suggestion would be to store to that directory already now...
for details do a search in the community...
btw. which Android version are you using for your tests?

Taifun

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

[fornakter]

Huawei Mate 10 lite
Show me Android ver. 8.0.0