如何让Android LinearLayoutManager显示部分项目

<androidx.recyclerview.widget.RecyclerView
    android:id="@+id/recyclerView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />

RecyclerView recyclerView = findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(adapter);

LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setInitialPrefetchItemCount(10); // 只显示10个项目
recyclerView.setLayoutManager(layoutManager);

int position = 10; // 要显示的项目位置
recyclerView.scrollToPosition(position);