Ok, I think I understand what you mean and I read now lot of information about this. But I do not really get on.
Now, I put my txt-file in the google cloud. I also have a Google Cloud Storage JSON API and Cloud firestore API (I hope this is the right one?). But how can I now save the file via the APP on the I-Phone and then output the content in a ListView? Do you have, or is there anywhere a tutorial where I can “learn” this? I’ve tried to find something in the www, but either I enter the wrong search arguments, or there is nothing?
excuse me if I ask so stupid here, but at the moment I have absolutely no idea. With APP Inventor I have solve this with a file download, but here !!!
thx for your Patience