RecyclerView

dependencies闭包添加数据

compile'com.android.surpport:recyclerview-v7:版本号同你上面一样'//注意点击Sync Now同步

准备适配器

水果类
public class Fruit {
    private String name;
    private int imaged;

    public Fruit(String name, int imaged) {
        this.name = name;
        this.imaged = imaged;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getImaged() {
        return imaged;
    }

    public void setImaged(int imaged) {
        this.imaged = imaged;
    }
}
水果类布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <ImageView
        android:id="@+id/fruit_image"
        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_gravity="center_vertical"
        android:layout_marginLeft="10dp"/>
</LinearLayout>
水果类适配器
public class FruitAdapter extends RecyclerView.Adapter<FruitAdapter.ViewHolder> {
    private List<Fruit> mFruitList;
    static class ViewHolder extends RecyclerView.ViewHolder{
        ImageView fruitImage;
        TextView fruitName;
        public ViewHolder(View itemView) {
            super(itemView);
            fruitImage=(ImageView)itemView.findViewById(R.id.fruit_image);
            fruitName=(TextView)itemView.findViewById(R.id.fruit_name);
        }
    }

    public FruitAdapter(List<Fruit> mFruitList){
        this.mFruitList = mFruitList;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        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) {
        Fruit fruit=mFruitList.get(position);
        holder.fruitImage.setImageResource(fruit.getImaged());
        holder.fruitName.setText(fruit.getName());
    }


    @Override
    public int getItemCount() {
        return mFruitList.size();
    }
}

简单调用

RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyler_view);
        LinearLayoutManager layoutManager=new LinearLayoutManager(this);
        recyclerView.setLayoutManager(layoutManager);
        FruitAdapter adapter=new FruitAdapter(fruits);
        recyclerView.setAdapter(adapter);

实现横向滚动

水果布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="100dp"
    android:layout_height="wrap_content">
    <ImageView
        android:id="@+id/fruit_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"/>
    <TextView
        android:id="@+id/fruit_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="10dp"/>

</LinearLayout>
设置布局横向排列
layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);

实现瀑布流布局

修改水果类布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="5dp">//子项设置距离
    <ImageView
        android:id="@+id/fruit_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"/>
    <TextView
        android:id="@+id/fruit_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="left"
        android:layout_marginTop="10dp"/>

</LinearLayout>
设置瀑布流布局
 StaggeredGridLayoutManager layoutManager=new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL);
随机数
rivate String getRandomLengthName(String name){
        Random random=new Random();
        int length=random.nextInt(20)+1;
        StringBuilder builder=new StringBuilder();
        for (int i=0;i<length;i++){
            builder.append(name);
        }
        return builder.toString();
    }

实现网格布局

GridLayoutManager layoutManager=new GridLayoutManager(getApplicationContext(),6,GridLayoutManager.VERTICAL,false);

实现RecycleView点击事件

viewHolder.fruitView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int postion=viewHolder.getAdapterPosition();
                Fruit fruit=mFruitList.get(postion);
                Toast.makeText(v.getContext(),"you chickname"+fruit.getName(),Toast.LENGTH_LONG).show();
            }
        });
        viewHolder.fruitImage.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int postion=viewHolder.getAdapterPosition();
                Fruit fruit=mFruitList.get(postion);
                Toast.makeText(v.getContext(),"you chickname"+fruit.getName(),Toast.LENGTH_LONG).show();
            }
        });