Android 使用RecyclerView实现商品列表-慈云数据

实现步骤：

创建数据模型创建一个表示商品的类，例如ProductInfo
创建适配器创建一个继承自RecyclerView.Adapter的适配器类，用于处理RecyclerView中的数据和视图
在主页面布局文件中添加RecyclerView
创建Item 布局文件
在你的Activity或Fragment中，初始化RecyclerView和适配器，并将数据传递给适配器：

创建数据模型创建一个表示商品的类，例如ProductInfo

public class ProductInfo {
    private int _id;
    private int product_img;
    private string product_title;
    private String product_style;
    private String product_size;
    private String product_price;
    public ProductInfo(int _id,int product_img, String product_title, String product_style, String product_size, String product_price) {
        this._id = _id;
        this.product_title = product_title;
        this.product_style = product_style;
        this.product_size = product_size;
        this.product_price = product_price;
        this.product_img = product_img;
    }
    public int getProduct_img() {
        return product_img;
    }
    public void setProduct_img(int product_img) {
        this.product_img = product_img;
    }
    public int get_id() {
        return _id;
    }
    public void set_id(int _id) {
        this._id = _id;
    }
    public String getProduct_title() {
        return product_title;
    }
    public void setProduct_title(String product_title) {
        this.product_title = product_title;
    }
    public String getProduct_style() {
        return product_style;
    }
    public void setProduct_style(String product_style) {
        this.product_style = product_style;
    }
    public String getProduct_size() {
        return product_size;
    }
    public void setProduct_size(String product_size) {
        this.product_size = product_size;
    }
    public String getProduct_price() {
        return product_price;
    }
    public void setProduct_price(String product_price) {
        this.product_price = product_price;
    }
}

创建适配器创建一个继承自RecyclerView.Adapter的适配器类，用于处理RecyclerView中的数据和视图

public class ProductListAdapter extends RecyclerView.Adapter {
    private List mProductInfos =new ArrayList();
    public ProductListAdapter(List list){
        this.mProductInfos =list;
    }
    @NonNull
    @Override
    public MyHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.product_item, null);
        return new MyHolder(view);
    }
    @Override
    public void onBindViewHolder(@NonNull MyHolder holder, int position) {
        //绑定数据
        ProductInfo productInfo = mProductInfos.get(position);
        //设置数据
        holder.tv_title.setText(productInfo.getProduct_title());
        holder.tv_style.setText("风格："+productInfo.getProduct_style());
        holder.tv_size.setText("尺寸："+productInfo.getProduct_size());
        holder.tv_price.setText("¥ "+ productInfo.getProduct_price());
        holder.img_product.setImageResource(productInfo.getProduct_img());
    }
    @Override
    public int getItemCount() {
        return mProductInfos.size();
    }
    static class MyHolder extends RecyclerView.ViewHolder{
         TextView tv_title;
         TextView tv_style;
         TextView tv_size;
         TextView tv_price;
         ImageView img_product;
         
        public MyHolder(@NonNull View itemView) {
            super(itemView);
            //初始化控件
            tv_title =itemView.findViewById(R.id.tv_title);
            tv_style =itemView.findViewById(R.id.tv_style);
            tv_size =itemView.findViewById(R.id.tv_size);
            tv_price =itemView.findViewById(R.id.tv_price);
            img_product =itemView.findViewById(R.id.img_product);
        }
    }
}

在主页面布局文件中添加RecyclerView

创建Item 布局文件

在你的Activity或Fragment中，初始化RecyclerView和适配器，并将数据传递给适配器：

public class ProductActivity extends AppCompatActivity {
    private RecyclerView recyclerView;
    private List mProductInfoList = new ArrayList();
    private ProductListAdapter productListAdapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_product);
        //初始化控件
        recyclerView = findViewById(R.id.recyclerView);
        //模拟数据
         mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.img_product_1,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        mProductInfoList.add(new ProductInfo(0,R.mipmap.ic_launcher,"First Ring 灰色/棕色V领修身针织马甲背心复古叠穿百搭马夹上衣","韩版","M","180.90"));
        //创建适配器
        productListAdapter = new ProductListAdapter(mProductInfoList);
        //设置适配器
        recyclerView.setAdapter(productListAdapter);
        //如果不在xml中设置app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"，就需要在代码中设置
//        recyclerView.setLayoutManager(new LinearLayoutManager(ProductActivity.this));
    }
}