RecyclerView 是一个增强版的ListView，不仅可以实现和ListView同样的效果，还优化了ListView中存在的各种不足之处ResyslerView 能够实现横向滚动，这是ListView所不能实现的目前官方更加推荐使用RecyclerView.1.实现垂直方向的滚动在   dependencies 中添加库的引用[html] view plain copydependencies {  compile fileTree(dir: 'libs', include: ['*.jar'])  testCompile 'junit:junit:4.12'  compile 'com.android.support:appcompat-v7:24.2.0'  compile 'com.android.support:recyclerview-v7:24.2.1'  }  添加布局文件：[html] view plain copy<?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.support.v7.widget.RecyclerView  android:id="@+id/recycler_view"  android:layout_width="match_parent"  android:layout_height="match_parent">  </android.support.v7.widget.RecyclerView>  </LinearLayout>  创建RecyclerView 适配器 BookBaseAdapter ，这个类继承 RecyclerView.Adapter 并将泛型指定为 BookBaseAdapter.ViewHolder其中ViewHolder是我们在 BookBaseAdapter 中定义的一个内部类：代码如下：[html] view plain copypublic class BookBaseAdapter extends RecyclerView.Adapter<BookBaseAdapter.ViewHolder>{  private List<Book> mBookList;  static class ViewHolder extends RecyclerView.ViewHolder{  ImageView bookImage;  TextView bookname;  public ViewHolder(View view) {  super(view);  bookImage = (ImageView) view.findViewById(R.id.book_iamge);  bookname = (TextView) view.findViewById(R.id.book_name);  }  }  public BookBaseAdapter(List<Book> mBookList) {  this.mBookList = mBookList;  }  [html] view plain copy<span style="white-space:pre;"> </span>//加载item 的布局  创建ViewHolder实例
        @Override  public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {  View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.book,parent,false);  ViewHolder holder = new ViewHolder(view);  return holder;  }  [html] view plain copy<span style="white-space:pre;"> </span>//对RecyclerView子项数据进行赋值
        @Override  public void onBindViewHolder(ViewHolder holder, int position) {  Book book = mBookList.get(position);  holder.bookname.setText(book.getName());  holder.bookImage.setImageResource(book.getImageId());  }  [html] view plain copy<span style="white-space:pre;"> </span>//返回子项个数
        @Override  public int getItemCount() {  return mBookList.size();  }  }  MainActivity调用：
[html] view plain copypublic class MainActivity extends AppCompatActivity {  private List<Book> mlsit = new ArrayList<Book>();  @Override  protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);  //初始化List数据
            initBook();  //初始化RecyclerView  RecyclerView recyslerview = (RecyclerView) findViewById(R.id.recycler_view);  //创建LinearLayoutManager 对象 这里使用 <span style="font-family:'Source Code Pro';">LinearLayoutManager 是线性布局的意思</span>  LinearLayoutManager layoutmanager = new LinearLayoutManager(this);  //设置RecyclerView 布局
            recyslerview.setLayoutManager(layoutmanager);  //设置Adapter  BookBaseAdapter adapter = new BookBaseAdapter(mlsit);  recyslerview.setAdapter(adapter);  }  private void initBook(){  for (int i = 0; i < 10; i++) {  Book book01 = new Book("Book"+i,R.drawable.icon01);  mlsit.add(book01);  Book book02 = new Book("Book"+i,R.drawable.icon02);  mlsit.add(book02);  Book book03 = new Book("Book"+i,R.drawable.icon03);  mlsit.add(book03);  }  }  }  main_layout布局：
[html] view plain copy<?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.support.v7.widget.RecyclerView  android:id="@+id/recycler_view"  android:layout_width="match_parent"  android:layout_height="match_parent">  </android.support.v7.widget.RecyclerView>  </LinearLayout>  item布局：
[html] view plain copy<?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="wrap_content"  android:orientation="horizontal">  <ImageView  android:id="@+id/book_iamge"  android:layout_width="wrap_content"  android:layout_height="wrap_content"/>  <TextView  android:id="@+id/book_name"  android:layout_width="match_parent"  android:layout_height="wrap_content"/>  </LinearLayout>  此处省略Book对象的相关源码。如上就可以实现和ListView一样的效果。2.实现横向滚动对垂直布局中的代码做小修改：onCreat方法中添加setOrientation（）方法来设置布局的排列方向[html] view plain copy<span style="background-color:rgb(255,255,255);"> <span>    </span>layoutmanager.setOrientation(LinearLayoutManager.HORIZONTAL);</span>  [html] view plain copy@Override  protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);  //初始化List数据
        initBook();  //初始化RecyclerView  RecyclerView recyslerview = (RecyclerView) findViewById(R.id.recycler_view);  //创建LinearLayoutManager 对象  LinearLayoutManager layoutmanager = new LinearLayoutManager(this);  layoutmanager.setOrientation(LinearLayoutManager.HORIZONTAL);  //设置RecyclerView 布局
        recyslerview.setLayoutManager(layoutmanager);  //设置Adapter  BookBaseAdapter adapter = new BookBaseAdapter(mlsit);  recyslerview.setAdapter(adapter);  }  修改一下item的布局：[html] view plain copy<?xml version="1.0" encoding="utf-8"?>  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="150dp"  android:layout_height="wrap_content"  android:orientation="vertical">  <ImageView  android:id="@+id/book_iamge"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_gravity="center_horizontal"/>  <TextView  android:id="@+id/book_name"  android:layout_width="match_parent"  android:layout_height="wrap_content"  android:layout_marginTop="10dp"  android:layout_gravity="center_horizontal"/>  </LinearLayout>  运行程序就可以发现我们实现了横向的滚动效果3.瀑布流布局RecyclerView除了LinearLayoutManager 之外，还提供了GridlayoutManager和StaggeredGridlayoutManager这两种内置的布局排列方式GridlayoutManager可以用于实现网格布局StaggeredGridlayoutManager可以用于实现瀑布流布局，这里我们来实现一下炫酷的瀑布流布局：修改item.xml的布局[html] view plain copy<?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="wrap_content"  android:layout_margin="5dp"  android:orientation="vertical">  <ImageView  android:id="@+id/book_iamge"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_gravity="center_horizontal"/>  <TextView  android:id="@+id/book_name"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_marginTop="5dp"  android:layout_gravity="left"/>  </LinearLayout>  onCreat方法：[html] view plain copy@Override  protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);  //初始化List数据
        initBook();  //初始化RecyclerView  RecyclerView recyslerview = (RecyclerView) findViewById(R.id.recycler_view);  //创建LinearLayoutManager 对象  /*  * 第一个参数表示布局的列数  * 第二个参数表示布局的方向，这里我们传入StaggeredGridLayoutManager.VERTICAL，表示布局纵向排列  */  StaggeredGridLayoutManager layoutmanager = new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL);  //设置RecyclerView 布局
        recyslerview.setLayoutManager(layoutmanager);  //设置Adapter  BookBaseAdapter adapter = new BookBaseAdapter(mlsit);  recyslerview.setAdapter(adapter);  }  仅仅修改一行代码，就可以成功的实现瀑布流的布局效果点击监听事件这里引用  http://blog.csdn.net/dmk877/article/details/50816933 的方法

给RecyclerView的Item添加点击事件Item的点击事件RecyclerView监听事件处理在ListView使用的时候，该控件给我们提供一个onItemClickListener监听器，这样当我们点击Item的时候，会回调相关的方法，以便我们方便处理Item点击事件。对于RecyclerView来讲，非常可惜的是，该控件没有给我们提供这样的内置监听器方法，不过我们可以进行改造实现，可以这样实现Item的点击事件的监听，在我们的adapter中增加这两个方法
public interface OnItemClickListener{void onClick( int position);void onLongClick( int position);}
public void setOnItemClickListener(OnItemClickListener onItemClickListener ){this. mOnItemClickListener=onItemClickListener;}然后onBindViewHolder方法要做如下更改
[java] view plain copy在CODE上查看代码片派生到我的代码片@Override  public void onBindViewHolder(MyViewHolder holder, final int position) {  holder. tv.setText( mDatas.get(position));  if( mOnItemClickListener!= null){  holder. itemView.setOnClickListener( new OnClickListener() {  @Override  public void onClick(View v) {  mOnItemClickListener.onClick(position);  }  });  holder. itemView.setOnLongClickListener( new OnLongClickListener() {  @Override  public boolean onLongClick(View v) {  mOnItemClickListener.onLongClick(position);  return false;  }  });  }  }<span style="color:#333333;">  </span>  在MainAcitivity中增加
[java] view plain copy在CODE上查看代码片派生到我的代码片recycleAdapter.setOnItemClickListener(new OnItemClickListener() {  @Override  public void onLongClick(int position) {  Toast.makeText(MainActivity.this,"onLongClick事件       您点击了第："+position+"个Item",0).show();  }  @Override  public void onClick(int position) {  Toast.makeText(MainActivity.this,"onClick事件       您点击了第："+position+"个Item",0).show();  }  });参考文档：http://blog.csdn.net/dmk877/article/details/50816933