I want to build an app with simple lessons.
Ex: You have a list of lessons but only one is available. Once you finish the first one and tap the button at the end of it, your second lesson is unlocked and you can access it.
Can you guys help me with this?
Maybe point me to some tutorial that explains that?
My challenge is that I can’t really understand how the progress is saved. If someone closes the app, how do I make sure the list with available/unavailable lessons is still there in the same form as the user left it?
Thank you in advance!