B4A includes all the features needed to quickly develop any type of Android app. B4A is used by tens of thousands of developers from all over the world, including companies such as NASA, HP, IBM and others.
jdk 17 is NOT one of those. Install ONLY what is linked to (do not seek other/later versions) and do ALL steps in the installation/set-up instructions: https://www.b4x.com/b4a.html
B4A + B4i example: https://www.b4x.com/android/forum/threads/b4x-texteditor-save-and-load-external-files.132731/#post-838166 List of classes or libraries that can be used to access secondary storages: ContentChooser (Phone libray) - allows the user to select a resource or file using external...
This is a B4i and B4A example, which demonstrates various external files related tasks. The behavior is not exactly the same as the platforms capabilities and behavior are different. B4A Load external files, including online files, using ContentChooser. Save to an external target, using...
Oops, I apologize for my last message. I hadn't noticed that the sd-card had mysteriously disappeared from my tablet. This ensured that no software had access to the sd-card.
I did a sd-card access test again and I can write and read on the sd-card.