Android(安卓)RecyclerView横向滑动

android.support.v7.widget.RecyclerView

功能：RecyclerView横向滑动

控件：

Java类：RecyclerView、GalleryAdapter、List

1、主界面布局

<?xml version="1.0" encoding="utf-8"?>

2、子界面布局

<?xml version="1.0" encoding="utf-8"?>

3、Java代码

package com.info.activity;import android.app.Activity;import android.content.Context;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;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;public class RecyclerActivity extends Activity {    private RecyclerView mRecyclerView;    private GalleryAdapter mAdapter;    private List mDatas;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_recycler);        initDatas();        //得到控件        mRecyclerView = (RecyclerView) findViewById(R.id.id_recyclerview_horizontal);        //设置布局管理器        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);        linearLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);        mRecyclerView.setLayoutManager(linearLayoutManager);        //设置适配器        mAdapter = new GalleryAdapter(this, mDatas);        mRecyclerView.setAdapter(mAdapter);    }    private void initDatas()    {        mDatas = new ArrayList<>(Arrays.asList(R.drawable.ic_launcher,                R.drawable.ic_launcher, R.drawable.ic_launcher, R.drawable.ic_launcher, R.drawable.ic_launcher,                R.drawable.ic_launcher, R.drawable.ic_launcher, R.drawable.ic_launcher, R.drawable.ic_launcher));    }    public class GalleryAdapter extends            RecyclerView.Adapter    {        private LayoutInflater mInflater;        private List mDatas;        public GalleryAdapter(Context context, List 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.activity_recycler_item,                    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));        }    }}

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