private void loadImage() {
    FoodFactory factory = FoodFactory.getInstance();
    // ごはん
    ImageView img = (ImageView) findViewById(R.id.rice);
    img.setImageResource(factory.getRice());
    foods.add(img);
    // 主菜
    img = (ImageView) findViewById(R.id.main);
    img.setImageResource(factory.getMain());
    foods.add(img);

    // 副菜
    img = (ImageView) findViewById(R.id.fukusai);
    img.setImageResource(factory.getFukusai());
    foods.add(img);

    // 汁物
    img = (ImageView) findViewById(R.id.soup);
    img.setImageResource(factory.getSoup());
    foods.add(img);

    // サラダ系
    img = (ImageView) findViewById(R.id.salada);
    img.setImageResource(factory.getSalada());
    foods.add(img);

    // 順番をシャッフルする
    Collections.shuffle(foods);
  }