Well, I would like that when initializing the application, the inventor app would get the list of tags in date format (example: 10-11-2023), then get another list of sub-tags within this main tag, and then present the subtags along with their respective values in the DetailText of a listView and the main tags (date format) in the MainText. I've been trying to do this for approximately 4 days, but I haven't achieved the desired result.
I can't read your non-English images, but I get the impression you put all your work into dressing up the UI and none into developing a workable data structure.