MainActivity

package android.example.spaceinvproject;

import android.app.Activity;
import android.graphics.Point;
import android.os.Bundle;
import android.view.Display;
import android.view.MotionEvent;


public class MainActivity extends Activity {


    SpaceGameView spaceGameView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);


        Display display = getWindowManager().getDefaultDisplay(); //allows us to know size of device screen
        //passes back lower right XY co-ords (top left XY co-ords = 0,0)
        Point size = new Point();
        display.getSize(size); //retrieves screen size


        spaceGameView = new SpaceGameView(this, size.x, size.y);
        setContentView(spaceGameView);

    }

    // This method executes when the player starts the game
    @Override
    protected void onResume() { //Calls resume method to restart game thread
        super.onResume();

        // Tell the gameView resume method to execute
        spaceGameView.resume();
    }

    // This method executes when the player quits the game
    @Override
    protected void onPause() { //stops game thread by calling onPause method
        super.onPause();

        // Tell the gameView pause method to execute
        spaceGameView.pause();
    }
}