分类全+图片

原创 于 2018-11-22 14:53:30 发布 · 146 阅读 · 0 ·
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本文详细介绍了一个基于MVP模式的网络请求实现案例，通过Java和OkHttp进行数据获取，利用Gson解析JSON数据，展示了如何在Android应用中实现左侧面板和右侧面板的数据加载与展示。

-------------HttpUtils.java

package com.bwie.xiaqin.yuekao112102lx.fen.utils;

import android.os.Handler;

import com.bwie.xiaqin.yuekao112102lx.fen.inter.ICallBack;
import com.google.gson.Gson;

import java.io.IOException;
import java.lang.reflect.Type;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

/**
 * Created by lenovo on 2018/11/22.
 */

public class HttpUtils {
    private static volatile HttpUtils instance;
    private OkHttpClient client;
    private Handler handler = new Handler();
    public HttpUtils(){
        client = new OkHttpClient();
    }
    public static HttpUtils getInstance(){
        if (instance == null){
            synchronized (HttpUtils.class){
                if (null == instance){
                    instance = new HttpUtils();
                }
            }
        }
        return instance;
    };
    public void get(String url, final ICallBack callBack, final Type type){
        Request request = new Request.Builder().get().url(url).build();
        Call call = client.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, final IOException e) {
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        callBack.onFailed(e);
                    }
                });
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String result = response.body().string();
                Gson gson = new Gson();
                final Object o = gson.fromJson(result, type);
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        callBack.onSuccess(o);
                    }
                });
            }
        });
    }
}

 

--------------------ICallBack.java

 

package com.bwie.xiaqin.yuekao112102lx.fen.inter;

/**
 * Created by lenovo on 2018/11/22.
 */

public interface ICallBack {
    void onSuccess(Object obj);
    void onFailed(Exception e);
}

 

--------------bean.java 前者 FenLeftBean.java   FenRightBean.java

 

package com.bwie.xiaqin.yuekao112102lx.bean;

import java.util.List;

/**
 * Created by lenovo on 2018/11/22.
 */

public class FenLeftBean {

    /**
     * msg :
     * code : 0
     * data : [{"cid":1,"createtime":"2017-10-10T19:41:39","icon":"http://120.27.23.105/images/category/shop.png","ishome":1,"name":"京东超市"},{"cid":2,"createtime":"2017-10-10T19:41:39","icon":"http://120.27.23.105/images/category/qqg.png","ishome":1,"name":"全球购"},{"cid":3,"createtime":"2017-10-10T19:45:11","icon":"http://120.27.23.105/images/category/phone.png","ishome":1,"name":"手机数码"},{"cid":5,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/man.png","ishome":1,"name":"男装"},{"cid":6,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/girl.png","ishome":1,"name":"女装"},{"cid":7,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/manshoe.png","ishome":1,"name":"男鞋"},{"cid":8,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/girlshoe.png","ishome":1,"name":"女鞋"},{"cid":9,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/shirt.png","ishome":1,"name":"内衣配饰"},{"cid":10,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/bag.png","ishome":1,"name":"箱包手袋"},{"cid":11,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/beauty.png","ishome":1,"name":"美妆个护"},{"cid":12,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/jewel.png","ishome":1,"name":"钟表珠宝"},{"cid":13,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/luxury.png","ishome":1,"name":"奢侈品"},{"cid":14,"createtime":"2017-10-10T20:12:03","icon":"http://120.27.23.105/images/category/computer.png","ishome":1,"name":"电脑办公"},{"cid":15,"createtime":"2017-09-29T10:13:48","icon":"http://120.27.23.105/images/icon.png","ishome":0,"name":"家用电器"},{"cid":16,"createtime":"2017-09-29T10:13:48","icon":"http://120.27.23.105/images/icon.png","ishome":0,"name":"食品生鲜"},{"cid":17,"createtime":"2017-09-29T10:13:48","icon":"http://120.27.23.105/images/icon.png","ishome":0,"name":"酒水饮料"},{"cid":18,"createtime":"2017-09-29T10:13:48","icon":"http://120.27.23.105/images/icon.png","ishome":0,"name":"母婴童装"},{"cid":19,"createtime":"2017-09-29T10:13:48","icon":"http://120.27.23.105/images/icon.png","ishome":0,"name":"玩具乐器"},{"cid":20,"createtime":"2017-09-29T10:13:48","icon":"http://120.27.23.105/images/icon.png","ishome":0,"name":"医药保健"}]
     */

    private String msg;
    private String code;
    private List<DataBean> data;

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public List<DataBean> getData() {
        return data;
    }

    public void setData(List<DataBean> data) {
        this.data = data;
    }

    public static class DataBean {
        /**
         * cid : 1
         * createtime : 2017-10-10T19:41:39
         * icon : http://120.27.23.105/images/category/shop.png
         * ishome : 1
         * name : 京东超市
         */

        private int cid;
        private String createtime;
        private String icon;
        private int ishome;
        private String name;

        public int getCid() {
            return cid;
        }

        public void setCid(int cid) {
            this.cid = cid;
        }

        public String getCreatetime() {
            return createtime;
        }

        public void setCreatetime(String createtime) {
            this.createtime = createtime;
        }

        public String getIcon() {
            return icon;
        }

        public void setIcon(String icon) {
            this.icon = icon;
        }

        public int getIshome() {
            return ishome;
        }

        public void setIshome(int ishome) {
            this.ishome = ishome;
        }

        public String getName() {
            return name;
        }

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

 

 

package com.bwie.xiaqin.yuekao112102lx.bean;

import java.util.List;

/**
 * Created by lenovo on 2018/11/22.
 */

public class FenRightBean {

    /**
     * msg : 获取子分类成功
     * code : 0
     * data : [{"cid":"3","list":[{"icon":"http://120.27.23.105/images/icon.png","name":"耳机/耳麦","pcid":10,"pscid":61},{"icon":"http://120.27.23.105/images/icon.png","name":"音箱/音响","pcid":10,"pscid":62},{"icon":"http://120.27.23.105/images/icon.png","name":"MP3/MP4","pcid":10,"pscid":63},{"icon":"http://120.27.23.105/images/icon.png","name":"便携/无线音箱","pcid":10,"pscid":64},{"icon":"http://120.27.23.105/images/icon.png","name":"麦克风","pcid":10,"pscid":65}],"name":"影音娱乐","pcid":"10"},{"cid":"3","list":[{"icon":"http://120.27.23.105/images/icon.png","name":"游戏手机","pcid":11,"pscid":66},{"icon":"http://120.27.23.105/images/icon.png","name":"拍照手机","pcid":11,"pscid":67},{"icon":"http://120.27.23.105/images/icon.png","name":"大屏手机","pcid":11,"pscid":68},{"icon":"http://120.27.23.105/images/icon.png","name":"老人机","pcid":11,"pscid":69},{"icon":"http://120.27.23.105/images/icon.png","name":"对讲机","pcid":11,"pscid":70}],"name":"手机通讯","pcid":"11"},{"cid":"3","list":[{"icon":"http://120.27.23.105/images/icon.png","name":"蓝牙耳机","pcid":12,"pscid":71},{"icon":"http://120.27.23.105/images/icon.png","name":"移动电源","pcid":12,"pscid":72},{"icon":"http://120.27.23.105/images/icon.png","name":"苹果周边","pcid":12,"pscid":73},{"icon":"http://120.27.23.105/images/icon.png","name":"手机耳机","pcid":12,"pscid":74},{"icon":"http://120.27.23.105/images/icon.png","name":"充电器","pcid":12,"pscid":75},{"icon":"http://120.27.23.105/images/icon.png","name":"数据线","pcid":12,"pscid":76},{"icon":"http://120.27.23.105/images/icon.png","name":"手机电池","pcid":12,"pscid":77},{"icon":"http://120.27.23.105/images/icon.png","name":"保护套","pcid":12,"pscid":78}],"name":"手机配件","pcid":"12"},{"cid":"3","list":[{"icon":"http://120.27.23.105/images/icon.png","name":"单反相机","pcid":13,"pscid":79},{"icon":"http://120.27.23.105/images/icon.png","name":"单电/微单相机","pcid":13,"pscid":80},{"icon":"http://120.27.23.105/images/icon.png","name":"拍立得","pcid":13,"pscid":81},{"icon":"http://120.27.23.105/images/icon.png","name":"数码相机","pcid":13,"pscid":82},{"icon":"http://120.27.23.105/images/icon.png","name":"摄像机","pcid":13,"pscid":83},{"icon":"http://120.27.23.105/images/icon.png","name":"镜头","pcid":13,"pscid":84}],"name":"摄影摄像","pcid":"13"}]
     */

    private String msg;
    private String code;
    private List<DataBean> data;

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public List<DataBean> getData() {
        return data;
    }

    public void setData(List<DataBean> data) {
        this.data = data;
    }

    public static class DataBean {
        /**
         * cid : 3
         * list : [{"icon":"http://120.27.23.105/images/icon.png","name":"耳机/耳麦","pcid":10,"pscid":61},{"icon":"http://120.27.23.105/images/icon.png","name":"音箱/音响","pcid":10,"pscid":62},{"icon":"http://120.27.23.105/images/icon.png","name":"MP3/MP4","pcid":10,"pscid":63},{"icon":"http://120.27.23.105/images/icon.png","name":"便携/无线音箱","pcid":10,"pscid":64},{"icon":"http://120.27.23.105/images/icon.png","name":"麦克风","pcid":10,"pscid":65}]
         * name : 影音娱乐
         * pcid : 10
         */

        private String cid;
        private String name;
        private String pcid;
        private List<ListBean> list;

        public String getCid() {
            return cid;
        }

        public void setCid(String cid) {
            this.cid = cid;
        }

        public String getName() {
            return name;
        }

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

        public String getPcid() {
            return pcid;
        }

        public void setPcid(String pcid) {
            this.pcid = pcid;
        }

        public List<ListBean> getList() {
            return list;
        }

        public void setList(List<ListBean> list) {
            this.list = list;
        }

        public static class ListBean {
            /**
             * icon : http://120.27.23.105/images/icon.png
             * name : 耳机/耳麦
             * pcid : 10
             * pscid : 61
             */

            private String icon;
            private String name;
            private int pcid;
            private int pscid;

            public String getIcon() {
                return icon;
            }

            public void setIcon(String icon) {
                this.icon = icon;
            }

            public String getName() {
                return name;
            }

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

            public int getPcid() {
                return pcid;
            }

            public void setPcid(int pcid) {
                this.pcid = pcid;
            }

            public int getPscid() {
                return pscid;
            }

            public void setPscid(int pscid) {
                this.pscid = pscid;
            }
        }
    }
}

 

-------------adapter    FenLeftAdapter.java   FenRightAdapter.java

 

package com.bwie.xiaqin.yuekao112102lx.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.TextView;

import com.bwie.xiaqin.yuekao112102lx.R;
import com.bwie.xiaqin.yuekao112102lx.bean.FenLeftBean;

import java.util.List;

/**
 * Created by lenovo on 2018/11/22.
 */

public class FenLeftAdapter extends RecyclerView.Adapter<FenLeftAdapter.ViewHolder> {
    private Context context;
    private List<FenLeftBean.DataBean> list;

    public FenLeftAdapter(Context context, List<FenLeftBean.DataBean> list) {
        this.context = context;
        this.list = list;
    }
    public interface OnItemClickListener{
        void onItemClick(View itemview,int position);
    }
    private OnItemClickListener clickListener;

    public void setOnItemClickListener(OnItemClickListener clickListener){
        this.clickListener = clickListener;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = View.inflate(context, R.layout.fen_item_left, null);
        FenLeftAdapter.ViewHolder holder = new ViewHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, final int position) {
        holder.txtleft.setText(list.get(position).getName());
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (clickListener!=null){
                    clickListener.onItemClick(v,position);
                }
            }
        });
    }

    @Override
    public int getItemCount() {
        return list.size();
    }
    class ViewHolder extends RecyclerView.ViewHolder{
        private TextView txtleft;

        public ViewHolder(View itemView) {
            super(itemView);
            txtleft=itemView.findViewById(R.id.txt_left);
        }
    }
}

 

 

package com.bwie.xiaqin.yuekao112102lx.adapter;

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.bwie.xiaqin.yuekao112102lx.R;
import com.bwie.xiaqin.yuekao112102lx.bean.FenRightBean;

import java.util.List;

/**
 * Created by lenovo on 2018/11/22.
 */

public class RightAdapter extends RecyclerView.Adapter<RightAdapter.ViewHolder>{
    private Context context;
    private List<FenRightBean.DataBean.ListBean> list;

    public RightAdapter(Context context, List<FenRightBean.DataBean.ListBean> list) {
        this.context = context;
        this.list = list;
    }

    @NonNull
    @Override
    public RightAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = View.inflate(context, R.layout.fen_item_right,null);
        ViewHolder holder = new ViewHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull RightAdapter.ViewHolder holder, int position) {
        Glide.with(context).load(list.get(position).getIcon()).into(holder.imageright);
        holder.textright.setText(list.get(position).getName());
    }

    @Override
    public int getItemCount() {
        return list.size();
    }
    class ViewHolder extends RecyclerView.ViewHolder{
        private ImageView imageright;
        private TextView textright;
        public ViewHolder(View itemview){
            super(itemview);
            imageright = itemview.findViewById(R.id.img_right);
            textright = itemview.findViewById(R.id.txt_right);
        }
    }


}

 

--------------------adapter xml     fen_item_left      fen_item_right  先前者

 

<?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="vertical"
    >
    <TextView
        android:id="@+id/txt_left"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="haha"
        android:textSize="20dp"
        android:padding="10dp"
        />

</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="match_parent"
    android:orientation="vertical"
    >
    <ImageView
        android:id="@+id/img_right"
        android:layout_width="75dp"
        android:layout_height="75dp"
        android:padding="10dp"
        />
    <TextView
        android:id="@+id/txt_right"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dp"
        />

</LinearLayout>

 

----------------------------之后是左边的mvp    view  model  presenter

 

--------LeftIView.java

package com.bwie.xiaqin.yuekao112102lx.fen.left.view;

import com.bwie.xiaqin.yuekao112102lx.bean.FenLeftBean;

import java.util.List;

/**
 * Created by lenovo on 2018/11/22.
 */

public interface LeftIView {
    void getleft(List<FenLeftBean.DataBean> list);
    void failed(Exception e);

}

----------LeftModel.java

 

package com.bwie.xiaqin.yuekao112102lx.fen.left.model;

import com.bwie.xiaqin.yuekao112102lx.fen.inter.ICallBack;
import com.bwie.xiaqin.yuekao112102lx.fen.utils.HttpUtils;

import java.lang.reflect.Type;

/**
 * Created by lenovo on 2018/11/22.
 */

public class LeftModel {
    public void getlefts(String url, ICallBack callBack, Type type){
        HttpUtils.getInstance().get(url,callBack,type);
    }
}

 

--------------LeftPresenter.java

 

package com.bwie.xiaqin.yuekao112102lx.fen.left.presenter;

import com.bwie.xiaqin.yuekao112102lx.bean.FenLeftBean;
import com.bwie.xiaqin.yuekao112102lx.fen.inter.ICallBack;
import com.bwie.xiaqin.yuekao112102lx.fen.left.model.LeftModel;
import com.bwie.xiaqin.yuekao112102lx.fen.left.view.LeftIView;
import com.google.gson.reflect.TypeToken;

import java.lang.reflect.Type;

/**
 * Created by lenovo on 2018/11/22.
 */

public class LeftPresenter {
    private LeftIView iv;
    private LeftModel leftmodel;
    public void attch(final LeftIView iv){
        this.iv = iv;
        leftmodel = new LeftModel();
    }
    public void getleft(){
        Type type = new TypeToken<FenLeftBean>(){}.getType();
        leftmodel.getlefts("http://www.zhaoapi.cn/product/getCatagory", new ICallBack() {
            @Override
            public void onSuccess(Object obj) {
                FenLeftBean leftBean = (FenLeftBean) obj;
                if (leftBean!=null){
                    iv.getleft(leftBean.getData());
                }
            }

            @Override
            public void onFailed(Exception e) {
                iv.failed(e);
            }
        },type);
    }
    public void detach(){
        if (iv!=null){
            iv = null;
        }
    }

}

 

--------------------之后是右面的 right  view  model  presenter

 

------------RightIView.java

package com.bwie.xiaqin.yuekao112102lx.fen.right.view;

import com.bwie.xiaqin.yuekao112102lx.bean.FenRightBean;

import java.util.List;

/**
 * Created by lenovo on 2018/11/22.
 */

public interface RightIView {
    void getrights(List<FenRightBean.DataBean> list);
    void failed(Exception e);
}

 

-----------RightModel.java

 

package com.bwie.xiaqin.yuekao112102lx.fen.right.model;

import com.bwie.xiaqin.yuekao112102lx.fen.inter.ICallBack;
import com.bwie.xiaqin.yuekao112102lx.fen.utils.HttpUtils;

import java.lang.reflect.Type;

/**
 * Created by lenovo on 2018/11/22.
 */

public class RightModel {
    public void getrights(String url, ICallBack callBack, Type type){
        HttpUtils.getInstance().get(url,callBack,type);
    }
}

 

------------RightPresenter.java

 

package com.bwie.xiaqin.yuekao112102lx.fen.right.presenter;


import com.bwie.xiaqin.yuekao112102lx.bean.FenRightBean;
import com.bwie.xiaqin.yuekao112102lx.fen.inter.ICallBack;
import com.bwie.xiaqin.yuekao112102lx.fen.right.model.RightModel;
import com.bwie.xiaqin.yuekao112102lx.fen.right.view.RightIView;
import com.bwie.xiaqin.yuekao112102lx.fragment.FenFragment;
import com.google.gson.reflect.TypeToken;

import java.lang.reflect.Type;

/**
 * Created by lenovo on 2018/11/22.
 */

public class RightPresenter {
    private RightIView iv;
    private RightModel rightModel;
    public void attch(FenFragment iv){
        this.iv = iv;
        rightModel = new RightModel();
    }
    public void getright(String url){
        Type type = new TypeToken<FenRightBean>(){}.getType();
        rightModel.getrights(url, new ICallBack() {
            @Override
            public void onSuccess(Object obj) {
                FenRightBean rightBean = (FenRightBean) obj;
                if (rightBean!=null){
                    iv.getrights(rightBean.getData());
                }
            }

            @Override
            public void onFailed(Exception e) {
                iv.failed(e);
            }
        },type);
    }
    public void detach(){
        if (iv !=null){
            iv = null;
        }
    }

}

 

 

----------------------------------------之后是主页面  

 

--------------首先xml   fen_fragment.xml

 

<?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="horizontal"
    tools:context="com.bwie.xiaqin.yuekao112102lx.fragment.FenFragment">
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        >
        <android.support.v7.widget.RecyclerView
            android:id="@+id/rec_left"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            ></android.support.v7.widget.RecyclerView>
    </LinearLayout>
    <ScrollView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="30dp"
        >
        <LinearLayout
            android:id="@+id/right_lnl"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:layout_marginLeft="20dp"
            ></LinearLayout>
    </ScrollView>


</LinearLayout>

 

------------------------主页面  FenFragment.java

 

package com.bwie.xiaqin.yuekao112102lx.fragment;

import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.bwie.xiaqin.yuekao112102lx.R;
import com.bwie.xiaqin.yuekao112102lx.adapter.FenLeftAdapter;
import com.bwie.xiaqin.yuekao112102lx.adapter.RightAdapter;
import com.bwie.xiaqin.yuekao112102lx.bean.FenLeftBean;
import com.bwie.xiaqin.yuekao112102lx.bean.FenRightBean;
import com.bwie.xiaqin.yuekao112102lx.fen.left.presenter.LeftPresenter;
import com.bwie.xiaqin.yuekao112102lx.fen.left.view.LeftIView;
import com.bwie.xiaqin.yuekao112102lx.fen.right.presenter.RightPresenter;
import com.bwie.xiaqin.yuekao112102lx.fen.right.view.RightIView;

import java.util.ArrayList;
import java.util.List;

public class FenFragment extends Fragment implements LeftIView,RightIView{
    private RecyclerView recleft;
    private FenLeftAdapter leftAdapter;
    private List<FenLeftBean.DataBean> beanList;
    private LeftPresenter leftPresenter;
    private LinearLayout layoutright;
    private RightAdapter rightAdapter;
    private RightPresenter rightPresenter;
    private List<FenRightBean.DataBean> beanright;


    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fen_fragment, container, false);
        recleft = view.findViewById(R.id.rec_left);
        layoutright = view.findViewById(R.id.right_lnl);
        return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        RecyclerView.LayoutManager layoutManager = new GridLayoutManager(getActivity(), 1, LinearLayoutManager.VERTICAL, false);
        recleft.setLayoutManager(layoutManager);
        beanList = new ArrayList<>();
        beanright = new ArrayList<>();
        leftAdapter = new FenLeftAdapter(getActivity(), beanList);
     leftAdapter.setOnItemClickListener(new FenLeftAdapter.OnItemClickListener() {
         @Override
         public void onItemClick(View itemview, int position) {
             FenLeftBean.DataBean dataBean = beanList.get(position);
             rightPresenter.getright("http://www.zhaoapi.cn/product/getProductCatagory?cid="+dataBean.getCid());

         }
     });
        recleft.setAdapter(leftAdapter);
        leftPresenter = new LeftPresenter();
        leftPresenter.attch(this);
        leftPresenter.getleft();
        rightPresenter = new RightPresenter();
        rightPresenter.attch(this);

    }

    @Override
    public void getleft(List<FenLeftBean.DataBean> list) {
        if (list!=null){
            beanList.clear();
            beanList.addAll(list);
            leftAdapter.notifyDataSetChanged();

        }

    }

    @Override
    public void getrights(List<FenRightBean.DataBean> list) {
        if (list!=null){
            layoutright.removeAllViews();
            for (int i=0;i<list.size();i++){
                TextView textView = new TextView(getActivity());
                textView.setText(list.get(i).getName());
                RecyclerView rvNextb = new RecyclerView(getActivity());
                RecyclerView.LayoutManager layoutManager2 = new GridLayoutManager(getActivity(), 3);
                rvNextb.setLayoutManager(layoutManager2);
                rightAdapter = new RightAdapter(getActivity(), list.get(i).getList());
                rvNextb.setAdapter(rightAdapter);
                beanright.clear();
                beanright.addAll(list);
                rightAdapter.notifyDataSetChanged();
                layoutright.addView(textView);
                layoutright.addView(rvNextb);

            }
        }

    }

    @Override
    public void failed(Exception e) {

    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (leftPresenter!=null){
            leftPresenter.detach();
        }

    }

    @Override
    public void onResume() {
        super.onResume();
        rightPresenter.getright("http://www.zhaoapi.cn/product/getProductCatagory?cid=1");

    }
}

 

 

 

 

 

 

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