分类的简单实现

于 2018-03-31 11:06:57 发布
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文章标签： 购物车分类
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本文链接：https://blog.youkuaiyun.com/recordCSND/article/details/79766723
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添加依赖--和 --网络权限(自己添加)

    compile 'com.android.support:appcompat-v7:26.+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'
    compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
    compile 'io.reactivex.rxjava2:rxjava:2.1.7'
    compile 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'
    compile 'com.squareup.retrofit2:retrofit:2.0.2'
// Retrofit库
    compile 'com.squareup.okhttp3:okhttp:3.1.2'
// Okhttp库
    compile 'com.squareup.retrofit2:converter-gson:2.0.2'
    compile 'com.facebook.fresco:fresco:0.12.0'
    compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
    compile 'com.jakewharton:butterknife:8.8.1'

 

 

 

主布局文件

 <android.support.v7.widget.RecyclerView
        android:layout_width="100dp"
        android:layout_height="match_parent"
        android:id="@+id/recycler"
        ></android.support.v7.widget.RecyclerView>
    <android.support.v7.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginLeft="100dp"
        android:id="@+id/recycler2"
        ></android.support.v7.widget.RecyclerView>

创建item.xml文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/tv"
    android:textSize="20sp"
    android:layout_weight="2"
    android:text="哈哈啊哈哈"
    />
</LinearLayout>

 

 创建 leftitem.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    >
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="Textview"
        android:id="@+id/tv2"
        />
    </LinearLayout>
    <android.support.v7.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/recycler3"
        ></android.support.v7.widget.RecyclerView>
</LinearLayout>

创建 leftitem2.xml

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
<com.facebook.drawee.view.SimpleDraweeView
    android:layout_width="50dp"
    android:layout_height="50dp"
    android:id="@+id/simpl"
    />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/tv3"
        />
</LinearLayout>

 

创建三个适配器

 

 

MyAdapter类

 

public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
    private Context context;
    private Bean bean;
    public MyAdapter(Context context, Bean bean) {
        this.context = context;
        this.bean = bean;
    }

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

    @Override
    public void onBindViewHolder(final RecyclerView.ViewHolder holder, int position) {
        final ViewHolder viewHolder=(ViewHolder)holder;
        if(onItemClickLinster!=null){
            holder.itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    int pos = holder.getLayoutPosition();
                    onItemClickLinster.OnItemClickLinser(view,pos);
                    onItemClickLinster.OnItemLongClickLinser(view,pos);
                }
            });
        }
        viewHolder.tv.setText(this.bean.getData().get(position).getName());
    }

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

    static class ViewHolder extends RecyclerView.ViewHolder {
        @BindView(R.id.tv)
        TextView tv;

        ViewHolder(View view) {
            super(view);
            ButterKnife.bind(this, view);
        }
    }
    public interface OnItemClickLinster{
        void OnItemClickLinser(View v, int pos);
        void OnItemLongClickLinser(View v, int pos);
    }

    private OnItemClickLinster onItemClickLinster;

    public void setOnItemClickLinster(OnItemClickLinster onItemClickLinster) {
        this.onItemClickLinster = onItemClickLinster;
    }

}

创建

LeftAdpter类
public class LeftAdpter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
    private Context context;
    private LeftBean bean;

    public LeftAdpter(Context context, LeftBean bean) {
        this.context = context;
        this.bean = bean;
    }

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

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        ViewHolder viewHolder = (ViewHolder) holder;
       viewHolder.tv2.setText(bean.getData().get(position).getName());
        viewHolder.recycler3.setLayoutManager(new GridLayoutManager(context,4));
         LeftAdapter2 adapter2=new LeftAdapter2(context,bean.getData().get(position).getList());
        viewHolder.recycler3.setAdapter(adapter2);
    }

    @Override
    public int getItemCount() {
        return bean.getData().size();
    }
    static class ViewHolder extends RecyclerView.ViewHolder {
        @BindView(R.id.tv2)
        TextView tv2;
        @BindView(R.id.recycler3)
        RecyclerView recycler3;

        ViewHolder(View view) {
            super(view);
            ButterKnife.bind(this, view);
        }
    }
}

创建

LeftAdapter2类
public class LeftAdapter2 extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
    private Context context;
    private List<LeftBean.DataBean.ListBean> bean;

    public LeftAdapter2(Context context, List<LeftBean.DataBean.ListBean> bean) {
        this.context = context;
        this.bean = bean;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = View.inflate(context, R.layout.leftitem2, null);
        ViewHolder holder=new ViewHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        ViewHolder viewHolder=(ViewHolder)holder;
        viewHolder.simpl.setImageURI(bean.get(position).getIcon());
        viewHolder.tv3.setText(bean.get(position).getName());
    }

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

    static class ViewHolder extends RecyclerView.ViewHolder {
        @BindView(R.id.simpl)
        SimpleDraweeView simpl;
        @BindView(R.id.tv3)
        TextView tv3;

        ViewHolder(View view) {
            super(view);
            ButterKnife.bind(this, view);
        }
    }
}

创建model包

 

创建getModel接口

 

public interface getModel {
    public void getData(Finish finish);
}

创建

getModel2接口
public interface getModel2 {
    public void getData2(LeftFinish leftfinish, String cid);
}

创建

getModelImpl
public class getModelImpl implements getModel{
    @Override
    public void getData(final Finish finish) {
        Retrofit retrofit=new Retrofit.Builder()
                .baseUrl(UtilsURL.HOST_URL)
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                .addConverterFactory(GsonConverterFactory.create())
                .build();
        ServiceAPI serviceAPI = retrofit.create(ServiceAPI.class);
        Flowable<Bean> bean = serviceAPI.bean();
        bean.subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Consumer<Bean>() {
                    @Override
                    public void accept(Bean bean) throws Exception {
                        finish.onfinish(bean);
                    }
                });
    }
}

 创建
getModelImpl2类
public class getModelImpl2 implements getModel2{
    @Override
    public void getData2(final LeftFinish leftfinish, String cid) {
        Retrofit retrofit=new Retrofit.Builder()
                .baseUrl(UtilsURL.HOST_URL)
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                .addConverterFactory(GsonConverterFactory.create())
                .build();
        ServiceAPI serviceAPI = retrofit.create(ServiceAPI.class);
        Flowable<LeftBean> leftbean = serviceAPI.leftbean(cid);
        leftbean.subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Consumer<LeftBean>() {
                    @Override
                    public void accept(LeftBean bean) throws Exception {
                        leftfinish.finish2(bean);
                    }
                });
    }
}

 

创建p包

 

创建

getpersenter接口
public interface getpersenter {
    public  void guanlian();
}

创建

  getpersenter2接口

public interface getpersenter2 {
    public void guanlian2(String cid);
}

 

创建

 

getpersenterImpl类
public class getpersenterImpl implements getpersenter,Finish {
    private final getModel m;
    getView view;

    public getpersenterImpl(getView view) {
        this.view = view;
        m=new getModelImpl();
    }

    @Override
    public void guanlian() {
        m.getData(this);
    }

    @Override
    public void onfinish(Bean bean) {
        view.ShowData(bean);
    }
}

创建

getpersenterImpl2类
 
public class getpersenterImpl2 implements getpersenter2,LeftFinish {
    private final getModel2 model2;
    getView view;

    public getpersenterImpl2(getView view) {
        this.view = view;
         model2=new getModelImpl2();
    }

    @Override
    public void guanlian2(String cid) {
         model2.getData2(this,view.cid());
    }

    @Override
    public void finish2(LeftBean bean) {
     view.ShowData2(bean);
    }
}

 

创建utils包

 

创建

App类
public class App extends Application{
    @Override
    public void onCreate() {
        super.onCreate();
        Fresco.initialize(this);
    }
}

创建

UtilsURL类
public class UtilsURL {
    public static final String HOST_URL="https://www.zhaoapi.cn/";
    public static final String TAGS_URL="product/getCatagory";

}

创建

Finish

接口

public interface Finish {
      void onfinish(Bean bean);

 }

创建

LeftFinish

接口

public interface LeftFinish {
    public void finish2(LeftBean bean);
}


创建

ServiceAPI

接口

public interface ServiceAPI {
@GET(UtilsURL.TAGS_URL)
Flowable<Bean> bean();
    @GET("product/getProductCatagory")
    Flowable<LeftBean> leftbean(@Query("cid") String cid);
}

创建v包

创建

Bean类
 
 
import java.util.List;

/**
 * Created by lenovo on 2017/12/8.
 */

public class Bean {

    /**
     * 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;
        }
    }
}

创建

LeftBean

类



import java.util.List;

/**
 * Created by lenovo on 2017/12/8.
 */

public class LeftBean {
    /**
     * msg : 获取子分类成功
     * code : 0
     * data : [{"cid":"1","list":[{"icon":"http://120.27.23.105/images/icon.png","name":"月饼","pcid":1,"pscid":1},{"icon":"http://120.27.23.105/images/icon.png","name":"坚果炒货","pcid":1,"pscid":2},{"icon":"http://120.27.23.105/images/icon.png","name":"糖巧","pcid":1,"pscid":3},{"icon":"http://120.27.23.105/images/icon.png","name":"休闲零食","pcid":1,"pscid":4},{"icon":"http://120.27.23.105/images/icon.png","name":"肉干肉脯","pcid":1,"pscid":5},{"icon":"http://120.27.23.105/images/icon.png","name":"饼干蛋糕","pcid":1,"pscid":6},{"icon":"http://120.27.23.105/images/icon.png","name":"蜜饯果干","pcid":1,"pscid":7},{"icon":"http://120.27.23.105/images/icon.png","name":"无糖食品","pcid":1,"pscid":8}],"name":"休闲零食","pcid":"1"},{"cid":"1","list":[{"icon":"http://120.27.23.105/images/icon.png","name":"新鲜水果","pcid":2,"pscid":9},{"icon":"http://120.27.23.105/images/icon.png","name":"海鲜水产","pcid":2,"pscid":10},{"icon":"http://120.27.23.105/images/icon.png","name":"精选肉类","pcid":2,"pscid":11},{"icon":"http://120.27.23.105/images/icon.png","name":"蛋类","pcid":2,"pscid":12},{"icon":"http://120.27.23.105/images/icon.png","name":"新鲜蔬菜","pcid":2,"pscid":13},{"icon":"http://120.27.23.105/images/icon.png","name":"冷冻食品","pcid":2,"pscid":14},{"icon":"http://120.27.23.105/images/icon.png","name":"饮品甜品","pcid":2,"pscid":15},{"icon":"http://120.27.23.105/images/icon.png","name":"大闸蟹","pcid":2,"pscid":16}],"name":"京东生鲜","pcid":"2"},{"cid":"1","list":[{"icon":"http://120.27.23.105/images/icon.png","name":"大米","pcid":3,"pscid":21},{"icon":"http://120.27.23.105/images/icon.png","name":"面粉","pcid":3,"pscid":22},{"icon":"http://120.27.23.105/images/icon.png","name":"杂粮","pcid":3,"pscid":23},{"icon":"http://120.27.23.105/images/icon.png","name":"食用油","pcid":3,"pscid":24},{"icon":"http://120.27.23.105/images/icon.png","name":"调味品","pcid":3,"pscid":25},{"icon":"http://120.27.23.105/images/icon.png","name":"方便速食","pcid":3,"pscid":26},{"icon":"http://120.27.23.105/images/icon.png","name":"有机食品","pcid":3,"pscid":27}],"name":"粮油调味","pcid":"3"},{"cid":"1","list":[{"icon":"http://120.27.23.105/images/icon.png","name":"饮用水","pcid":4,"pscid":28},{"icon":"http://120.27.23.105/images/icon.png","name":"饮料","pcid":4,"pscid":29},{"icon":"http://120.27.23.105/images/icon.png","name":"牛奶乳品","pcid":4,"pscid":30},{"icon":"http://120.27.23.105/images/icon.png","name":"名茶","pcid":4,"pscid":31},{"icon":"http://120.27.23.105/images/icon.png","name":"蜂蜜","pcid":4,"pscid":32}],"name":"水饮茗茶","pcid":"4"},{"cid":"1","list":[{"icon":"http://120.27.23.105/images/icon.png","name":"白酒","pcid":5,"pscid":33},{"icon":"http://120.27.23.105/images/icon.png","name":"葡萄酒","pcid":5,"pscid":34},{"icon":"http://120.27.23.105/images/icon.png","name":"洋酒","pcid":5,"pscid":35},{"icon":"http://120.27.23.105/images/icon.png","name":"啤酒","pcid":5,"pscid":36},{"icon":"http://120.27.23.105/images/icon.png","name":"黄酒","pcid":5,"pscid":37},{"icon":"http://120.27.23.105/images/icon.png","name":"陈年老酒","pcid":5,"pscid":38}],"name":"中外名酒","pcid":"5"}]
     */
    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
         * list : [{"icon":"http://120.27.23.105/images/icon.png","name":"月饼","pcid":1,"pscid":1},{"icon":"http://120.27.23.105/images/icon.png","name":"坚果炒货","pcid":1,"pscid":2},{"icon":"http://120.27.23.105/images/icon.png","name":"糖巧","pcid":1,"pscid":3},{"icon":"http://120.27.23.105/images/icon.png","name":"休闲零食","pcid":1,"pscid":4},{"icon":"http://120.27.23.105/images/icon.png","name":"肉干肉脯","pcid":1,"pscid":5},{"icon":"http://120.27.23.105/images/icon.png","name":"饼干蛋糕","pcid":1,"pscid":6},{"icon":"http://120.27.23.105/images/icon.png","name":"蜜饯果干","pcid":1,"pscid":7},{"icon":"http://120.27.23.105/images/icon.png","name":"无糖食品","pcid":1,"pscid":8}]
         * name : 休闲零食
         * pcid : 1
         */

        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 : 月饼
             * pcid : 1
             * pscid : 1
             */

            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;
            }
        }
    }
}

 

 

MainActivity主类

 

 

public class MainActivity extends AppCompatActivity implements getView {

    @BindView(R.id.recycler)
    RecyclerView recycler;
    @BindView(R.id.recycler2)
    RecyclerView recycler2;
    private getpersenter p;

    private getpersenter2 p2;
    private getpersenter2 p21;
    private String cid;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);
        p=new getpersenterImpl(this);
        p.guanlian();
        p21 = new getpersenterImpl2(this);

        recycler.setLayoutManager(new LinearLayoutManager(this));
        recycler2.setLayoutManager(new LinearLayoutManager(this));

    }

    @Override
    public void ShowData(final Bean bean) {
        MyAdapter adapter=new MyAdapter(MainActivity.this,bean);
        recycler.setAdapter(adapter);
        adapter.notifyDataSetChanged();
        adapter.setOnItemClickLinster(new MyAdapter.OnItemClickLinster() {
            @Override
            public void OnItemClickLinser(View v, int pos) {
                cid = bean.getData().get(pos).getCid()+"";
                p21.guanlian2(cid);
            }

            @Override
            public void OnItemLongClickLinser(View v, int pos) {

            }
        });
    }

    @Override
    public void ShowData2(LeftBean leftBean) {
        LeftAdpter adpter=new LeftAdpter(MainActivity.this,leftBean);
        recycler2.setAdapter(adpter);


    }

    @Override
    public String cid() {
        return cid;
    }

}

在配置文件中添加

 
android:name=".utils.App"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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