RecyclerView实现横向滚动效果

<linearlayout 
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  tools:context=".recyclerviewactivity">
  <androidx.recyclerview.widget.recyclerview
    android:id="@+id/recyclerview_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="8dp"/>

</linearlayout>

android:layout_width="100dp"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_margin="5dp">
<imageview
    android:id="@+id/iv_recyclerview_imag"
    android:layout_width="wrap_content"
    android:layout_height="100dp" />
 <textview
    android:id="@+id/tv_recyclerview_name"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="老虎"
    android:textsize="17sp"
    android:layout_gravity="center"
    android:textstyle="bold"
    android:padding="3dp"/>

</linearlayout>

public class recyclerviewadapter extends recyclerview.adapter<recyclerviewadapter.viewholder> {
  private list<animal> animallist;
  private int resource;

  public recyclerviewadapter(list<animal> animallist, int resource) {
    this.animallist = animallist;
    this.resource = resource;
  }

  @nonnull
  @override
  public viewholder oncreateviewholder(@nonnull viewgroup parent, int viewtype) {
    view itemview = layoutinflater.from(parent.getcontext()).inflate(resource,parent,
        false);
    viewholder holder = new viewholder(itemview);
    return holder;
  }

  @override
  public void onbindviewholder(@nonnull viewholder holder, int position) {
    animal animal = animallist.get(position);
    holder.animalimag.setimageresource(animal.getimageid());
    holder.animalname.settext(animal.getname());

  }

  @override
  public int getitemcount() {
    return animallist.size();
  }

  static class viewholder extends recyclerview.viewholder{
     imageview animalimag;
     textview animalname;
     public viewholder(view itemview){
       super(itemview);
       animalimag = itemview.findviewbyid(r.id.iv_recyclerview_imag);
       animalname = itemview.findviewbyid(r.id.tv_recyclerview_name);
     }
   }
}

public class recyclerviewactivity extends appcompatactivity {
  private list<animal> animallist = new arraylist<>();
  private recyclerview recyclerview;

  @override
  protected void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    setcontentview(r.layout.activity_recycler_view);
    recyclerview = findviewbyid(r.id.recyclerview_view);
    initanimals();
    linearlayoutmanager linearlayoutmanager = new linearlayoutmanager(this);
    linearlayoutmanager.setorientation(linearlayoutmanager.horizontal);
    recyclerview.setlayoutmanager(linearlayoutmanager);
    recyclerviewadapter adapter = new recyclerviewadapter(animallist,r.layout.recyclerview_item);
    recyclerview.setadapter(adapter);
  }
  //初始化动物数据
  private void initanimals() {
      animal daxaing = new animal("大象", r.drawable.animal_one);
      animallist.add(daxaing);
      animal shizi = new animal( "袋鼠", r.drawable.animal_two);
      animallist.add(shizi);
      animal daishu = new animal("二哈", r.drawable.animal_three);
      animallist.add(daishu);
      animal laohu = new animal("狮子", r.drawable.animal_four);
      animallist.add(laohu);
      animal zhu = new animal("猪", r.drawable.animal_five);
      animallist.add(zhu);
      animal songshu = new animal("猴子", r.drawable.animal_six);
      animallist.add(songshu);
      animal baozi = new animal("豹子", r.drawable.animal_seven);
      animallist.add(baozi);
      animal shayu = new animal("鲨鱼", r.drawable.animal_eight);
      animallist.add(shayu);
  }

}