在RecyclerView，我想设置一个空的观点时，适配器是空的，以显示。是否有ListView.setEmptyView?

In RecyclerView, I want to set an empty view to be shown when the adapter is empty. Is there an equivalent of ListView.setEmptyView?

推荐答案

随着新的数据绑定功能，你也可以直接布局实现这一点：

With the new data binding feature you can also achieve this in your layout directly:

<TextView
   android:text="No data to display."
   android:visibility="@{dataset.size() > 0 ? View.GONE : View.VISIBLE}" />

在这种情况下，你只需要添加一个变量，并导入到你的XML数据部分：

In that case you just need to add a variable and an import to the data section of your XML:

<data>
<import type="android.view.View"/>
<variable
    name="dataset"
    type="java.util.List&lt;java.lang.String&gt;"
    />
</data>