public class MainMenuActivity extends AppCompatActivity {

    int width;
    int height;
    MainView mainView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        DisplayMetrics displayMetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
        height = displayMetrics.heightPixels;
        width = displayMetrics.widthPixels;
        mainView = new MainView(this, height, width);
        setContentView(mainView);

        Thread thread = new Thread(){

            @Override
            public void run() {
                try {
                    while (!isInterrupted()) {
                        Thread.sleep(1000);
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                mainView.updateBird(new Canvas());
                            }
                        });
                    }
                } catch (InterruptedException e) {
                    Log.e("MainActivity", "Thread Run Exception");
                }
            }
        };
        thread.start();
    }
}