I want to develop a simple app for my Android phone that lets you input a text when accessing the phone's lockscreen, this text should then be saved in a log file containing not only the input text but also date and time of input registration. There should not be any way of avoiding the input either, entering no text and continueing should result in a log that only contains the date and time.
This should result in being able to check who accessed your device and when. For me this would be helpful. I'd then input a nickname for myself that nobody knows of and if someone tries entering the device using my real name, I'd know it wasn't me.
Now here is the problem, I haven't ever developed an application or anything of the sorts. My only experience in coding would be HTML. Does anybody feel like helping me out?
It's a complicated situation, so I'm not responding to the usual "Why don't you just do this or that". I want this specific method that works for me if at all possible.
Thank you for your consideration.