ModelBindingActivity.java

public class MainActivity extends AppCompatActivity {
	ActivityMainBinding binding;
	MainViewModel viewModel;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		viewModel = new MainViewModel();
		binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
		binding.setModel(viewModel);
	}
}