How to make a classic mobile level selection screen?

Hello everyone.
How to make a classic mobile level selection screen?
Like this:
CTR_LevelSelect-200x300.png

I found this tutorial

I did like this. But this is not what i need.

make a generic widget - like the slanted box with the stars, all together as a button - on the click of that button, have it call a event dispatcher

then in another widget, have a uniform grid, and loop and and create the above widget, and bind the dispatcher you make, on that dispatcher, load the level - you can pass a “level id” as a parameter in this dispatcher that you initialize on widget creation