购物车删除

最新推荐文章于 2021-05-26 01:06:42 发布

原创最新推荐文章于 2021-05-26 01:06:42 发布 · 669 阅读

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CC 4.0 BY-SA版权

本文介绍了一种基于Java的购物车删除功能实现方案，通过调用API接口完成购物车商品的删除操作，并详细展示了实现该功能所需的代码结构，包括模型层、视图层和控制器层之间的交互。

String DELETECART_URL = "https://www.zhaoapi.cn/product/deleteCart";

model

package com.example.a1512qjd.model.inter;

import com.example.a1512qjd.net.OnNetListener;

public interface DeleteCartModel {
    void deleteCart(String uid, String pid, String token, OnNetListener onNetListener);
}

package com.example.a1512qjd.model;

import com.example.a1512qjd.model.inter.DeleteCartModel;
import com.example.a1512qjd.net.Api;
import com.example.a1512qjd.net.OkhttpUtils;
import com.example.a1512qjd.net.OnNetListener;

import java.util.HashMap;
import java.util.Map;

public class DeleteCartModelImp implements DeleteCartModel {
    @Override
    public void deleteCart(String uid, String pid, String token, final OnNetListener onNetListener) {
        Map<String,String> params = new HashMap<>();
        params.put("uid",uid);
        params.put("pid",pid);
        params.put("token",token);
        OkhttpUtils.getInstance().doPost(Api.DELETECART_URL, params, new OnNetListener() {
            @Override
            public void onSuccess(String result) {
                onNetListener.onSuccess(result);
            }

            @Override
            public void onFailed(Exception e) {
                onNetListener.onFailed(e);
            }
        });
    }
}

package com.example.a1512qjd.presenter.inter;

public interface DeleteCartPresenter {
    void deleteCart(String uid, String pid, String token);
}

package com.example.a1512qjd.presenter;

import com.example.a1512qjd.model.DeleteCartModelImp;
import com.example.a1512qjd.net.OnNetListener;
import com.example.a1512qjd.presenter.inter.DeleteCartPresenter;
import com.example.a1512qjd.ui.inter.DeleteCartView;

public class DeleteCartPresenterImp implements DeleteCartPresenter {

    private final DeleteCartModelImp deleteCartModelImp;
    private DeleteCartView deleteCartView;

    public DeleteCartPresenterImp(DeleteCartView deleteCartView) {
        this.deleteCartView = deleteCartView;
        deleteCartModelImp = new DeleteCartModelImp();
    }

    @Override
    public void deleteCart(String uid, String pid, String token) {
        deleteCartModelImp.deleteCart(uid, pid, token, new OnNetListener() {
            @Override
            public void onSuccess(String result) {
                deleteCartView.delSuccess();
            }

            @Override
            public void onFailed(Exception e) {

            }
        });

    }
}

package com.example.a1512qjd.ui.inter;

public interface DeleteCartView {
    void delSuccess();
}

deleteCartPresenterImp = new DeleteCartPresenterImp(this);

childViewHolder.tvDel = convertView.findViewById(R.id.tvDel);

//给删除设置点击事件
childViewHolder.tvDel.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        progressDialog.show();
        state = GETCARTS;
        //获取pid
        int pid = listBean.getPid();
        //删除购物车里的选项
        deleteCartPresenterImp.deleteCart(uid, pid + "", token);

    }
});

//删除成功回调接口
@Override
public void delSuccess() {
    getCartsPresenterImp.getCarts(uid, token);
}