Read .pdf File from Documents Folder

[Keule]

Hi there,

i am going to reopen that case.

i want to open some pdf files, located in Documents/subfolder/file-x.pdf

the pdf-files getting uploaded by pc or by another app.

i have found this:

[Free] ViewPDF - a simple pdf viewer for local files & ViewBigPDF

1. Introduction I was doing some work with @Juan_Antonio's KIO4_PDF extension and realised that it was possible to view ANY pdf available on the device (within reason, depending on location, Android version / API). I came up with some blocks to make it possible to view an entire pdf in a webviewer. (There are already straightforward methods for viewing pdfs locally and from online resources) In discussion with Juan, and with his help and code, I then developed this extension which would do the…

but i don't think this helps, because i do not have those files in the assets (and i do not know what assets are =D)

i tried different ways to open those files:

i have also a file component added for setting file scope to legacy, after i did that, Adobe PDF Reader opens and gives an Error like "File can not open"

Maybe you can give me some help, how i can fix my problems.

In the End i want to Download some pdf files from a nextcloud to the phone (done by synchronisation app) and open those files via my app.

[Kevinkun]

@Keule

but i don't think this helps, because i do not have those files in the assets (and i do not know what assets are =D)

What have you tried with this ViewPDF extension? the pdf file don't have to be in assets or asd.
and Assets means you upload the file to Media when developing the app.

[Taifun]

@Keule

i want to open some pdf files, located in Documents/subfolder/file-x.pdf

the pdf-files getting uploaded by pc or by another app.

Which means you have to use SAF to access the files, see also Some basics on Android storage system

SAF: App Inventor implementation of Storage Access Framework

1.Introduction Description: Basically AI2 wrapper of Storage Access Framework. Using this extension, you can get read and/or write access to a single document or tree document (and all of its children recursively). Latest Version: 1.3 Released: 2021-09-16T18:30:00Z (UTC) Last Updated: 2023-11-15T18:30:00Z (UTC) 2.Blocks [image] [image] [image] [image] [image] [image] [image] [image] [image] 3.Documentation Events ErrorOccurred Event indicating error/excep…

Taifun

[Keule]

Thank you for the hint.

maybe you can help me a bit. What does SAF exactly do? is it to set permissions to my app or is it a tool to open those files?

How do the blocks have to look like? as an example? - i just want to have read access on all files under /Documents/fuehrerscheinpruefung

[Taifun]

Read both threads carefully, find examples in the SAF thread, try something yourself and then come back with a screenshot of what you tried and your questions

Taifun

[patel]

If your app is only intended for private use have a look also here How to request and grant MANAGE_EXTERNAL_STORAGE permission

[Keule]

hey, thank you for your reply.

i tried this:

but seems not to work...

[Keule]

hi there, thank you for your reply,

i tried this:

but also not working, Permission denied.

[Keule]

I am going to use my app with assets now, seems working so far.

now i have one last problem. My app is in total about 45 MB, but appinventor can only make apps with max 30 MB.

Do i have any possibility to create my apk otherwise?

[patel]

This runs well on android 11, but not with companion, you have to instal the apk

[Anke]

@Keule

My app is in total about 45 MB, but appinventor can only make apps with max 30 MB.

Do i have any possibility to create my apk otherwise?

How to build a big app → APK max. 100 MB or → AAB 150 MB

Steps to build a big app for APK → max. 100 MB or AAB → max. 150 MB (new, added on Aug 31, 2021) 1. APK (Note: apps that were released before Aug 1, 2021 can still use APKs !) You can use e.g. APK Editor Studio for that. First download the keystore "android.keystore" from your AI2 account and rename it to: "android.ks" remove some big files (png, jpg, mp3,…) from the assets (AIA < 10 MB, better < 5 MB) build APK decompile APK (re)insert the missing files to the assets recompile your …

[Keule]

Awesome, thank you so much, this helps a lot!

[Keule]

hi there,

On Android 12 this is working, but unfortunately not on Android 13.

On A13 it is only asking for audio and video permissions, not for "edit all files".
in the end, my listviewer keeps empty.

any hint?

the activitystarter.action is set in the designer, so i did not add it here again.

Fahrerhandbuch4.aia (33.1 KB)

[Keule]

any idea someone?

[Taifun]

As already said earlier, you have to use SAF
Taifun

[patel]

@Keule

any idea someone?

You missed activity action here

[Taifun]

@patel

You missed activity action here

fyi

@Keule

the activitystarter.action is set in the designer, so i did not add it here again.

Taifun

[Anke]

@Keule

On Android 12 this is working

No, this does not work on any Android version > 10.

Try this one:

Fahrerhandbuch4.apk

Blocks

[Keule]

Thank you very much, seems working so far in my dev environment. (just had to move the makedirectory block to somewhere else)

I will do the live testing next week.