不管多布局还是什么，我都用的listview,突然用到Recycleview的时候，不知道该怎么用了，对自己也是一脸懵逼
，真的好难受啊，那不熟悉的我们就再了解一下，其实套路是一样的。。。。

下面给大家分享一下我实现的效果：

下面我们首先导入依赖包：

compile ‘com.android.support:recyclerview-v7:26.1.0’

下面是布局文件：

这个是item布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="match_parent" android:orientation="vertical" >
    <RelativeLayout  android:layout_width="120dp" android:layout_height="120dp">

        <ImageView  android:id="@+id/id_index_gallery_item_image" android:layout_width="80dp" android:layout_height="80dp" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_margin="5dp" android:scaleType="centerCrop" />

        <TextView  android:id="@+id/id_index_gallery_item_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/id_index_gallery_item_image" android:layout_centerHorizontal="true" android:layout_marginBottom="5dp" android:layout_marginTop="5dp" android:textColor="#000000" android:text="some info" android:textSize="12dp" />
    </RelativeLayout>

</LinearLayout>

下面是主Actvity布局

<?xml version="1.0" encoding="utf-8"?>
<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" android:padding="10dp" android:orientation="vertical" tools:context=".MainActivity" >
    <android.support.v7.widget.RecyclerView  android:id="@+id/id_recyclerview_horizontal" android:layout_width="match_parent" android:layout_height="120dp" android:layout_centerVertical="true" android:background="#FF0000" android:scrollbars="none" ></android.support.v7.widget.RecyclerView>

</LinearLayout>

接下来是适配器：

import android.content.Context;
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.List;

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,
                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));
    }

}

下面就是view运行代码了：

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 MainActivity extends Activity {

    private RecyclerView mRecyclerView;
    private GalleryAdapter mAdapter;
    private List<Integer> mDatas;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        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.mipmap.ic_launcher,
                R.mipmap.ic_launcher, R.mipmap.ic_launcher, R.mipmap.ic_launcher, R.mipmap.ic_launcher,
                R.mipmap.ic_launcher, R.mipmap.ic_launcher, R.mipmap.ic_launcher, R.mipmap.ic_launcher));
    }


}