Implementing horizontal lists using recyclerview

This example shares the specific code of the recyclerview implementation level list for your reference. The specific contents are as follows

1. Renderings

2、activity_ horizontallistview.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical">

 <android.support.v7.widget.RecyclerView
  android:id="@+id/recyclerview_horizontal1"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:layout_gravity="center_horizontal"
  android:overScrollMode="never"
  android:scrollbars="none"
  />

 <android.support.v7.widget.RecyclerView
  android:id="@+id/recyclerview_horizontal2"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:layout_gravity="center_horizontal"
  android:overScrollMode="never"
  android:scrollbars="none"
  />

 <android.support.v7.widget.RecyclerView
  android:id="@+id/recyclerview_horizontal3"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:layout_gravity="center_horizontal"
  android:overScrollMode="never"
  android:scrollbars="none"
  />
</LinearLayout>

3. Activity code

package ivan.com.appbackendtest;

import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.linearlayoutmanager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Created by ivan on 2017/6/9.
 */

public class horizontallistviewActivity extends AppCompatActivity {
 private RecyclerView recyclerview_horizontal1;
 private GalleryAdapter mAdapter1;
 private RecyclerView recyclerview_horizontal2;
 private GalleryAdapter mAdapter2;
 private RecyclerView recyclerview_horizontal3;
 private GalleryAdapter mAdapter3;
 private List<Integer> mDatas1;
 private List<Integer> mDatas2;
 private List<Integer> mDatas3;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_horizontallistview);
  initDatas();
  //得到控件
  recyclerview_horizontal1 = (RecyclerView)findViewById(R.id.recyclerview_horizontal1);
  //设置布局管理器
  linearlayoutmanager linearlayoutmanager = new linearlayoutmanager(this);
  linearlayoutmanager.setOrientation(linearlayoutmanager.HORIZONTAL);
  recyclerview_horizontal1.setLayoutManager(linearlayoutmanager);
  //设置适配器
  mAdapter1 = new GalleryAdapter(this,mDatas1);
  recyclerview_horizontal1.setAdapter(mAdapter1);

  //得到控件
  recyclerview_horizontal2 = (RecyclerView)findViewById(R.id.recyclerview_horizontal2);
  //设置布局管理器
  linearlayoutmanager linearlayoutmanager2 = new linearlayoutmanager(this);
  linearlayoutmanager2.setOrientation(linearlayoutmanager.HORIZONTAL);
  recyclerview_horizontal2.setLayoutManager(linearlayoutmanager2);
  //设置适配器
  mAdapter2 = new GalleryAdapter(this,mDatas2);
  recyclerview_horizontal2.setAdapter(mAdapter2);

  //得到控件
  recyclerview_horizontal3 = (RecyclerView)findViewById(R.id.recyclerview_horizontal3);
  //设置布局管理器
  linearlayoutmanager linearlayoutmanager3 = new linearlayoutmanager(this);
  linearlayoutmanager3.setOrientation(linearlayoutmanager.HORIZONTAL);
  recyclerview_horizontal3.setLayoutManager(linearlayoutmanager3);
  //设置适配器
  mAdapter3 = new GalleryAdapter(this,mDatas3);
  recyclerview_horizontal3.setAdapter(mAdapter3);
 }
 private void initDatas()
 {
  mDatas1 = new ArrayList<>(Arrays.asList(R.mipmap.ic_launcher));
  mDatas2 = new ArrayList<>(Arrays.asList(R.mipmap.ic_launcher,R.mipmap.ic_launcher));
  mDatas3 = new ArrayList<>(Arrays.asList(R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher));
 }
 public class GalleryAdapter extends
   RecyclerView.Adapter<GalleryAdapter.ViewHolder>
 {
  private LayoutInflater mInflater;
  private List<Integer> mDatas;

  public GalleryAdapter(Context context,List<Integer> datats)
  {
   mInflater = LayoutInflater.from(context);
   mDatas = datats;
  }

  public class ViewHolder extends RecyclerView.ViewHolder
  {
   public ViewHolder(View arg0)
   {
    super(arg0);
   }

   ImageView mImg;
   TextView mTxt;
  }

  @Override
  public int getItemCount()
  {
   return mDatas.size();
  }

  /**
   * 创建ViewHolder
   */
  @Override
  public ViewHolder onCreateViewHolder(ViewGroup viewGroup,int i)
  {
   View view = mInflater.inflate(R.layout.item_listview,viewGroup,false);
   ViewHolder viewHolder = new ViewHolder(view);

   viewHolder.mImg = (ImageView) view
     .findViewById(R.id.id_index_gallery_item_image);
   return viewHolder;
  }
  /**
   * 设置值
   */
  @Override
  public void onBindViewHolder(final ViewHolder viewHolder,final int i)
  {
   viewHolder.mImg.setImageResource(mDatas.get(i));
  }
 }
}

4. Core code

 //得到控件
  recyclerview_horizontal1 = (RecyclerView)findViewById(R.id.recyclerview_horizontal1);
  //设置布局管理器
  linearlayoutmanager linearlayoutmanager = new linearlayoutmanager(this);
  linearlayoutmanager.setOrientation(linearlayoutmanager.HORIZONTAL);
  recyclerview_horizontal1.setLayoutManager(linearlayoutmanager);
  //设置适配器
  mAdapter1 = new GalleryAdapter(this,mDatas1);
  recyclerview_horizontal1.setAdapter(mAdapter1);

The above is the whole content of this article. I hope it will help you in your study, and I hope you will support us a lot.