<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_height="wrap_content"
    android:layout_width="match_parent"
    android:orientation="vertical">

    <android.support.v7.widget.RecyclerView
        tools:listitem="@layout/list"
        android:id="@+id/list_dialog"
        android:layout_height="0dp"
        android:layout_width="0dp" />

</LinearLayout>