Spring实现上拉刷新和下拉加载效果

compile 'com.android.support:recyclerview-v7:25.3.1' compile 'com.liaoinstan.springview:library:1.3.0' compile files('libs/glide-3.7.0.jar') 

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"   xmlns:app="http://schemas.android.com/apk/res-auto"   xmlns:tools="http://schemas.android.com/tools"   android:layout_width="match_parent"   android:layout_height="match_parent"    android:orientation="vertical"   tools:context="muhanxi.recycleview.MainActivity">     <com.liaoinstan.springview.widget.SpringView     android:layout_width="match_parent"     android:id="@+id/springview"     android:layout_height="match_parent">       <android.support.v7.widget.RecyclerView       android:layout_width="match_parent"       android:layout_height="match_parent"       android:id="@+id/recyclerview"/>    </com.liaoinstan.springview.widget.SpringView>   </LinearLayout> 

public class MainActivity extends Activity {    private RecyclerView recyclerView;   private List<String> list = new ArrayList<>();   private SpringView springView;   private LinearLayoutManager linearLayoutManager;    @RequiresApi(api = Build.VERSION_CODES.GINGERBREAD)   @Override   protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main);      recyclerView = (RecyclerView) findViewById(R.id.recyclerview);       list.add("http://f10.baidu.com/it/u=2881303562,336932824&fm=72");     list.add("http://f11.baidu.com/it/u=681755471,2018070071&fm=72");     list.add("http://f10.baidu.com/it/u=960650584,863938083&fm=72");     list.add("http://img0.imgtn.bdimg.com/it/u=783060973,4278100629&fm=27&gp=0.jpg");     list.add("http://img1.imgtn.bdimg.com/it/u=3743124979,3234956668&fm=27&gp=0.jpg");     list.add("http://img4.imgtn.bdimg.com/it/u=3468613159,957707785&fm=27&gp=0.jpg");     list.add("http://img3.imgtn.bdimg.com/it/u=2971205354,485034289&fm=27&gp=0.jpg");       list.add("http://f10.baidu.com/it/u=2881303562,336932824&fm=72");     list.add("http://f11.baidu.com/it/u=681755471,2018070071&fm=72");     list.add("http://f10.baidu.com/it/u=960650584,863938083&fm=72");     list.add("http://img0.imgtn.bdimg.com/it/u=783060973,4278100629&fm=27&gp=0.jpg");     list.add("http://img1.imgtn.bdimg.com/it/u=3743124979,3234956668&fm=27&gp=0.jpg");     list.add("http://img4.imgtn.bdimg.com/it/u=3468613159,957707785&fm=27&gp=0.jpg");     list.add("http://img3.imgtn.bdimg.com/it/u=2971205354,485034289&fm=27&gp=0.jpg");        // 设置布局管理器 //    new GridLayoutManager() 九宫格布局管理器 //    new LinearLayoutManager() listview 布局管理器 // //    new StaggeredGridLayoutManager() 瀑布流 布局管理器   //    recyclerView.setLayoutManager(new GridLayoutManager(this,5));    //    recyclerView.setLayoutManager(new StaggeredGridLayoutManager(3, LinearLayout.VERTICAL)); //    RecyclerViewAdapter adapter = new RecyclerViewAdapter(this,list) ;      MultiAdapter adapter = new MultiAdapter(this,list) ;      linearLayoutManager = new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false);     recyclerView.setLayoutManager(linearLayoutManager);     recyclerView.setAdapter(adapter); // //    adapter.setIListener(new RecyclerViewAdapter.Listener() { //      @Override //      public void onClick(View view, int position) { //        Toast.makeText(MainActivity.this, ""+position, Toast.LENGTH_SHORT).show(); //      } // //      @Override //      public void longClick(View view, int position) { // //      } //    });      recyclerView.setOnScrollListener(new RecyclerView.OnScrollListener() {       @Override       public void onScrollStateChanged(RecyclerView recyclerView, int newState) {         super.onScrollStateChanged(recyclerView, newState);   //        linearLayoutManager.findFirstVisibleItemPosition()         }        @Override       public void onScrolled(RecyclerView recyclerView, int dx, int dy) {         super.onScrolled(recyclerView, dx, dy);       }     });  //    recyclerView.setOnI    //    recyclerView.addItemDecoration(new HorizontalDividerItemDecoration.Builder(this) //    .color(Color.RED).build());       springView = (SpringView) findViewById(R.id.springview);      springView.setHeader(new DefaultHeader(this));     springView.setFooter(new DefaultFooter(this));       springView.setListener(new SpringView.OnFreshListener() {       @Override       public void onRefresh() {         //下啦          springView.onFinishFreshAndLoad();       }        @Override       public void onLoadmore() { // 上啦         springView.onFinishFreshAndLoad();        }     });    //    adapter.notifyDataSetChanged();     }   } 

<?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:gravity="center"   android:orientation="vertical">         <ImageView     android:src="@mipmap/ic_launcher"     android:scaleType="centerCrop"     android:id="@+id/item_simageview"     android:layout_width="match_parent"     android:layout_height="100dp" />    </LinearLayout> 

<?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:gravity="center"   android:orientation="vertical">         <ImageView     android:src="@mipmap/ic_launcher"     android:id="@+id/item_simageview"     android:layout_width="match_parent"     android:layout_height="100dp" />    <TextView      android:background="@color/colorPrimary"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:id="@+id/item_stextview"/>   </LinearLayout> 

public class MultiAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {     private Context context;   private List<String> list;     public MultiAdapter(Context context, List<String> list) {     this.context = context;     this.list = list;    }    @Override   public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {      if (viewType == 0) {        View view = LayoutInflater.from(context).inflate(R.layout.layout_fitem,parent, false);       return new FViewHolder(view);      } else {       View view = LayoutInflater.from(context).inflate(R.layout.layout_sitem, parent, false);        return new SViewHolder(view);      }     }     @Override   public int getItemViewType(int position) {     return position % 2 ;   }    @Override   public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {         if(holder instanceof FViewHolder){        FViewHolder fViewHolder = (FViewHolder)holder ;       fViewHolder.itemStextview.setText(position+"");       Glide.with(context).load(list.get(position)).into(fViewHolder.itemSimageview);  //      ImageLoader.getInstance().displayImage(list.get(position),fViewHolder.itemSimageview);       } else {        SViewHolder sViewHolder = (SViewHolder)holder ;       Glide.with(context).load(list.get(position)).into(sViewHolder.itemSimageview);  //      ImageLoader.getInstance().displayImage(list.get(position),sViewHolder.itemSimageview);      }     }    @Override   public int getItemCount() {     return list.size();   }      static class FViewHolder extends RecyclerView.ViewHolder{     @BindView(R.id.item_simageview)     ImageView itemSimageview;     @BindView(R.id.item_stextview)     TextView itemStextview;      FViewHolder(View view) {       super(view);       ButterKnife.bind(this, view);     }   }    class SViewHolder extends RecyclerView.ViewHolder{     @BindView(R.id.item_simageview)     ImageView itemSimageview;      SViewHolder(View view) {       super(view);       ButterKnife.bind(this, view);     }   } }