recyclerview 3a no layout manager attached 3b skipping layout

1You need to set layout manager
2Kotlin:
3val linearLayoutManager:LinearLayoutManager = LinearLayoutManager(this)
4linearLayoutManager.orientation = LinearLayoutManager.HORIZONTAL{or VERTICAL}
5recycleView.layoutManager = linearLayoutManager
6Java:
7LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
8linearLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL{or VERTICAL});
9list.setLayoutManager(linearLayoutManager);

1 <androidx.recyclerview.widget.RecyclerView
2        android:id="@+id/reccylerview"
3        android:layout_width="0dp"
4        android:layout_height="0dp"
5        android:layout_marginTop="8dp"
6        android:scrollbars="vertical"
7        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"/>