RecyclerView使用

第一步:build.gradle加入recyclerview-v7闭包

    dependencies {    compile fileTree(dir: 'libs', include: ['*.jar'])    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {        exclude group: 'com.android.support', module: 'support-annotations'    })    compile 'com.android.support:appcompat-v7:25.3.1'    compile 'com.android.support.constraint:constraint-layout:1.0.2'    testCompile 'junit:junit:4.12'    compile 'com.android.support:recyclerview-v7:25.0.3'    }

第二步：使用recyclerview完成布局：

    <android.support.v7.widget.RecyclerView        android:id="@+id/recycler_view"        android:layout_width="wrap_content"        android:layout_height="wrap_content">    </android.support.v7.widget.RecyclerView>

第三步：创建model类,Fruit.class

    public class Fruit {        private int fruitId;        private String fruitName;    public Fruit(int fruitId, String fruitName) {        this.fruitId = fruitId;        this.fruitName = fruitName;    }    public int getFruitId() {        return fruitId;    }    public String getFruitName() {        return fruitName;    }}

第四步：创建子项布局文件fruit_item.xml

<?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:orientation="horizontal">    <TextView        android:id="@+id/fruit_id"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />    <TextView        android:id="@+id/fruit_name"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginLeft="20dp" /></LinearLayout>

第四步：创建adapter适配器

public class FruitAdapter extends RecyclerView.Adapter<FruitAdapter.ViewHolder> {    private List<Fruit> mFruitList;    static class ViewHolder extends RecyclerView.ViewHolder{        private TextView fruitNameText;        private TextView fruitIdText;        public ViewHolder(View view){            super(view);            //实例控件            fruitIdText =(TextView)view.findViewById(R.id.fruit_id);            fruitNameText=(TextView)view.findViewById(R.id.fruit_name);        }    }    public FruitAdapter(List<Fruit> fruitList){        mFruitList=mFruitList;    }    @Override    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {    //获得View        View view=LayoutInflater.from(parent.getContext()).inflate(R.layout.fruit_item,parent,false);        ViewHolder viewHolder=new ViewHolder(view);        return viewHolder;    }    @Override    public void onBindViewHolder(ViewHolder holder, int position) {        //为控件添加数据        Fruit fruit=mFruitList.get(position);        holder.fruitIdText.setText(fruit.getFruitId());        holder.fruitNameText.setText(fruit.getFruitName());    }    @Override    public int getItemCount() {        return mFruitList.size();    }    }

第五步：使用为recyclerview设置适配器和布局，以及添加数据

    public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        RecyclerView recyclerView=(RecyclerView)findViewById(R.id.recycler_view);        FruitAdapter adapter=new FruitAdapter(initFruitList());        //三种布局管理器        LinearLayoutManager linearLayoutManager=new LinearLayoutManager(this);//        GridLayoutManager gridLayoutManager=new GridLayoutManager(this,2);//        StaggeredGridLayoutManager staggeredGridLayoutManager=new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL);        recyclerView.setAdapter(adapter);        recyclerView.setLayoutManager(linearLayoutManager);    }    List<Fruit> initFruitList(){        List<Fruit> fruitList=new ArrayList<Fruit>();        for (int i=0;i<50;i++){            fruitList.add(new Fruit(String.valueOf(i),"fruit "+i));        }        return fruitList;    }    }

效果演示暂无，嘿嘿。