RotationActivity.java

import android.arch.lifecycle.ViewModelProviders;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

import com.burhan.arch.room.R;

public class RotationActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_rotation);
        TextView txtRotation = findViewById(R.id.txtRotate);
      
        MyViewModel myViewModel = ViewModelProviders.of(this).get(MyViewModel.class);
      
        txtRotation.setText("Rotations : " + myViewModel.getRotationCount());
    }
}