Creating a game level map?

Question

Android

Hello
I am new to android development. I made a simple logical game to increase experience, but there were little difficulties.
I would like to make a level map with increasing difficulty and achievement stars at the level.
By the type of these:

There are no problems in order to draw graphics, but with the implementation of the software part on Androide I'm stupid.
Who will tell you video or text toturils on this topic?
I can't find it on google for various queries.
PS Do not offer implementation on engines, since the game itself is written in pure Java in Android Studio (unless the engine has the ability to later integrate the map into the code)

Answer 1

On pure java? Do you at least use OpenGL? Or canvas? How is the rendering going?

Answer 2

And what, if not a secret, is the problem with the implementation?
It's just that there is no point in giving problems from the "how to fit this into an existing game" cycle, because. depends on the implementation of the game. And you have it on its own, without an engine, i.e. only you can answer this question.
And in terms of logic, it's just another trivial screen in the application, with pretty simple logic.