CTB 4-2

MainActivity.java

            }
        }, 0, 20);
    }

    public void changePos() {
        box.setY(boxY);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_DOWN) {
            boxY -= 20;
        }
        return true;
    }
}