以编程方式更改卡片视图可点击的属性

Question

如何在运行时将卡片视图可点击属性从true更改为false，例如当＆＃34; A＆＃34;选中单选按钮我想显示新项目并可点击虚假，当＆＃34; B＆＃34;选中单选按钮我想显示具有不同项目数的新项目，并且可单击为true。 我该如何实现呢？ 我试过这个：

    private void setUpDailyRecycleView(List<IWeather> dailyWeathers){

    RecyclerView recyclerView = (RecyclerView) findViewById(R.id.daily_recylceview);
    CardAdapter cardAdapter = new CardAdapter(this, dailyWeathers);
    CardView cardView = (CardView) findViewById(R.id.daily_card);
    cardView.setClickable(true);
    recyclerView.setAdapter(cardAdapter);

    LinearLayoutManager verticalLayoutManger = new LinearLayoutManager(this);
    verticalLayoutManger.setOrientation(LinearLayoutManager.VERTICAL);
    recyclerView.setLayoutManager(verticalLayoutManger);

}

和此：

    private void setUpDailyRecycleView(List<IWeather> dailyWeathers){

    RecyclerView recyclerView = (RecyclerView) findViewById(R.id.daily_recylceview);
    CardAdapter cardAdapter = new CardAdapter(this, dailyWeathers);
    recyclerView.setAdapter(cardAdapter);

    LinearLayoutManager verticalLayoutManger = new LinearLayoutManager(this);
    verticalLayoutManger.setOrientation(LinearLayoutManager.VERTICAL);
    recyclerView.setLayoutManager(verticalLayoutManger);
    CardView cardView = (CardView) findViewById(R.id.daily_card);
    cardView.setClickable(true);

}

但抛出NullPointerException，因为卡视图对象为空。