Create Another ViewModel (Game)

Kotlin and Android Development featuring Jetpack — by Michael Fazio (27 / 125)

👈 Customize the Player List Items | TOC | Bind ViewModel to a Fragment (Game) 👉

This class will look similar to PickPlayersViewModel on a high level, but there’s going to be a lot more going on here since this will handle the connection between the Game view and the GameHandler we’ll be building in Chapter 4, ​Update LiveData with Conditional Game Logic​.

We’re going to start with an empty GameViewModel class, and we can add the pieces in later on. It’ll look like this:

​ ​package​ ​dev.mfazio.pennydrop.viewmodels​
​ 
​ ​import​ ​androidx.lifecycle.ViewModel​
​ 
​ ​class​ GameViewModel: ViewModel() {
​   ​//Logic will go in here.​
​ }

Once GameViewModel is available, we can add a List<Player> to hold everyone we added in the Pick Players view. We’ll need a little setup before we can do that, though.

Add Players to the Game

To get the players into a game, we’re going to need to do a few things: we need a Player class, we need the List<Player> that I mentioned a bit ago, and finally, we need a way to get players from the Pick Players view into GameViewModel. Let’s walk through each of these steps now.

Create the Player Class