RecyclerView使用详解（代替ListView）

dependencies { 
 compile 'com.android.support:recyclerview-v7:23.0.+' 
} 

//添加布局管理器，Orientation默认是纵向的，所以我们在此需要手动指定一下 
LinearLayoutManager layoutManager = new LinearLayoutManager(context); 
layoutManager.setOrientation(OrientationHelper.HORIZONTAL); 
recyclerView.setLayoutManager(layoutManager); 
 
//设置recyclerView标记，如果确定内容的高度都一致，设置为true，提高内容渲染效率；（如果高度不确定系统要自己适配高度） 
recyclerView.setHasFixedSize(true); 
 
//设置adapter 
HRecyclerViewAdapter adapter = new HRecyclerViewAdapter(context, images); 
recyclerView.setAdapter(adapter); 

public class HRecyclerViewAdapter extends RecyclerView.Adapter<HRecyclerViewAdapter.MyViewHolder>{ 
 
 private Context context; 
 private int[] images; 
 private OnItemClickListener onItemClickListener; 
 
 public HRecyclerViewAdapter(Context context, int[] images) { 
 this.context=context; 
 this.images=images; 
 } 
 
 //重写onCreateViewHolder方法，返回一个自定义的ViewHolder(当RecyclerView需要一个ViewHolder时会回调该方法，如果有可复用的View不会回调) 
 public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
 View view = LayoutInflater.from(context).inflate(R.layout.item_hrecycler, parent, false); 
 MyViewHolder myViewHolder = new MyViewHolder(view); 
 return myViewHolder; 
 } 
 
 
 //填充onCreateViewHolder方法返回的holder中的控件(当一个View需要出现在屏幕上时，该方法会被回调，我们需要再该方法中根据数据来更改视图) 
 public void onBindViewHolder(final MyViewHolder holder, int position) { 
 holder.iv.setBackgroundResource(images[position]); 
 if(onItemClickListener!=null){ 
 holder.itemView.setOnClickListener(new View.OnClickListener() { 
 @Override 
 public void onClick(View v) { 
  int index = holder.getLayoutPosition(); 
  //自定义监听第三步 
  onItemClickListener.onItemClick(index); 
 } 
 }); 
 } 
 } 
 
 //获取数据的数量(告诉RecyclerView有多少个视图需要显示) 
 public int getItemCount() { 
 return images.length; 
 } 
 
 //自定义的ViewHolder，持有每个Item的的所有界面元素 
 public class MyViewHolder extends RecyclerView.ViewHolder{ 
 
 public ImageView iv; 
 
 public MyViewHolder(View itemView) { 
 super(itemView); 
 iv= (ImageView) itemView.findViewById(R.id.imageview); 
 } 
 } 
 
 //自定义监听第二步 
 public void setOnItemClickListener(OnItemClickListener onItemClickListener){ 
 this.onItemClickListener=onItemClickListener; 
 } 
 
 //自定义监听第一步 
 public interface OnItemClickListener{ 
 void onItemClick(int position); 
 } 
 
} 

adapter.setOnItemClickListener(new HRecyclerViewAdapter.OnItemClickListener() { 
 @Override 
 public void onItemClick(int position) { 
 ToastUtils.showStaticToast(context,"当前点击的是第"+(position+1)+"张图片"); 
 } 
 }); 

//添加头布局（必须在设置完布局管理器再添加头布局和脚布局） 
 View headerView = View.inflate(this, R.layout.headerview, null); 
 myRecyclerView.addHeaderView(headerView); 
 //添加脚布局 
 View footView = View.inflate(context, R.layout.footview, null); 
 myRecyclerView.addFooterView(footView); 

//添加滑动监听 
 myRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() { 
 @Override 
 //当RecyclerView的滑动状态改变时触发 
 public void onScrollStateChanged(RecyclerView recyclerView, int newState) { 
 super.onScrollStateChanged(recyclerView, newState); 
 } 
 
 @Override 
 //当RecyclerView滑动时触发(类似点击事件的MotionEvent.ACTION_MOVE) 
 public void onScrolled(RecyclerView recyclerView, int dx, int dy) { 
 super.onScrolled(recyclerView, dx, dy); 
 
 int visible = layoutManager.getChildCount();//当天页面显示的条目个数 
 int total = layoutManager.getItemCount();//当前一共多少个条目 
 int past= layoutManager.findFirstCompletelyVisibleItemPosition();//布局上面被当住多少个条目 
 
 //当活动到最后一个条目时加载更多数据 
 if ((visible + past) >= total){ 
  <span style="white-space:pre"> </span>//发送handler加载数据 
  handler.sendEmptyMessageDelayed(1,1000); 
  
 } 
 
 } 
 });