How to get an Instance of ViewModel in activity in 2020/21?

Question

I am new to the mvvm pattern. I created a ViewModel for the main activity. Now I want to get an instance of the ViewModel in the main activity.

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Answer 1

I had similar problems and in the end found out I missed off the "extends ViewModel" within the class definition, so it should look like this:

public class ViewModelClass extends ViewModel
{
    // Tracks the score for Team A
    public int scoreTeamA = 0;

    // Tracks the score for Team B
    public int scoreTeamB = 0;
}