Android中RecyclerView实现商品分类功能

程序员文章站 2021-12-03 08:59:58

本文实例为大家分享了android中recyclerview实现商品分类功能的具体代码，供大家参考，具体内容如下三个个recyclerview实现//左边的布局

本文实例为大家分享了android中recyclerview实现商品分类功能的具体代码，供大家参考，具体内容如下

三个个recyclerview实现

//左边的布局

 <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="50dp"
    android:orientation="vertical">

    <textview
        android:id="@+id/tv_name"
        android:textsize="18sp"
        android:text="阿萨德发的"
        android:gravity="center"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</linearlayout>

//右边的布局

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/name"/>

    <android.support.v7.widget.recyclerview
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/right_recy"
        android:layout_below="@+id/name"/>
</relativelayout>

//子布局

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <imageview
        android:id="@+id/image2"
        android:layout_width="90dp"
        android:layout_height="90dp" />

    <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/title1" />
</linearlayout>

//定义一个接口

public interface callback {
void onsuccess(list<leftbean.databean> list);
void onfailer(string error);
}

//左边的model层

public class leftmodel {

    private  string path="http://www.zhaoapi.cn/product/getcatagory";
    public void getdata(final callback callback){
        okhttp okhttp=new okhttp();
        okhttp.get(path).getdataliserner(new okhttp.getdata() {
            @override
            public void data(string s) {
                gson gson=new gson();
                leftbean json = gson.fromjson(s, leftbean.class);
                list<leftbean.databean> data = json.getdata();
                if (data!=null){
                    callback.onsuccess(data);
                }else {
                    callback.onfailer("失败");
                }
            }
        });
    }
}

//左边的presenter层

public class leftpresenter {
    private leftview leftview;
    private final leftmodel leftmodel;

    public leftpresenter(leftview leftview) {
        this.leftview = leftview;
        leftmodel = new leftmodel();
    }

    public void showleft(){
        leftmodel.getdata(new callback() {
            @override
            public void onsuccess(list<leftbean.databean> list) {
                leftview.onsuccess(list);
            }

            @override
            public void onfailer(string error) {
                leftview.failer(error);
            }
        });
    }
}

//view层

public interface leftview {
   void onsuccess(list<leftbean.databean> list);
   void failer(string error);
}

//左边的适配器

public class leftrecycadapter extends recyclerview.adapter<leftrecycadapter.leftviewholer>{

    private context mcontext;
    private list<leftbean.databean> list;

    public leftrecycadapter(context mcontext, list<leftbean.databean> list) {
        this.mcontext = mcontext;
        this.list = list;
    }

    @nonnull
    @override
    public leftviewholer oncreateviewholder(@nonnull viewgroup viewgroup, int viewtype) {
        view view = layoutinflater.from(mcontext).inflate(r.layout.left_item, viewgroup,false);
        leftviewholer leftviewholer=new leftviewholer(view);
        return leftviewholer;
    }

    @override
    public void onbindviewholder(@nonnull leftviewholer leftviewholer, int position) {
        leftviewholer.textview.settext(list.get(position).getname());
    }

    @override
    public int getitemcount() {
        return list.size();
    }


    public class leftviewholer extends recyclerview.viewholder {
        private textview textview;
        public leftviewholer(@nonnull view itemview) {
            super(itemview);
            textview=itemview.findviewbyid(r.id.tv_name);
            textview.setonclicklistener(new view.onclicklistener() {
                @override
                public void onclick(view v) {
                    onclicklistener.onclick(v,getadapterposition());
                }
            });
        }
    }

    public interface onclicklistener{
        void onclick(view view,int position);
    }

    onclicklistener onclicklistener;

    public void setonclicklistener(onclicklistener onclicklistener){
        this.onclicklistener=onclicklistener;
    }
}

开始右边的了
//右边的接口

public interface callbackright {
    void onsuccess2(list<rightbean.databean> list);
    void onfailer2(string error);
}

//右边的model层

public class rightmodel {
   // private string path1="http://www.zhaoapi.cn/product/getproductcatagory?cid=3&tdsourcetag=s_pcqq_aiomsg";
    public void showright(final string cid2, final callbackright callbackright){

                okhttp okhttp=new okhttp();
                okhttp.get(cid2).getdataliserner(new okhttp.getdata() {
                    @override
                    public void data(string s) {
                        gson gson=new gson();
                        rightbean json = gson.fromjson(s, rightbean.class);
                        list<rightbean.databean> data = json.getdata();
                        if (data!=null){
                            callbackright.onsuccess2(data);
                        }else {
                            callbackright.onfailer2("错误");
                        }
                    }
                });


    }
}

//右边的presenter层

public class rightpresenter {
    private final rightmodel rightmodel;
    private rightview rightview;

    public rightpresenter(rightview rightview) {
        this.rightview = rightview;
        rightmodel = new rightmodel();
    }

    public void showright(string id){
        rightmodel.showright(id, new callbackright() {
            @override
            public void onsuccess2(list<rightbean.databean> list) {
                rightview.onsuccess2(list);
            }

            @override
            public void onfailer2(string error) {
                rightview.onfailer2(error);
            }
        });
    }
}

//右边的view层

public interface rightview {
    void onsuccess2(list<rightbean.databean> list);
    void onfailer2(string error);
}

//右边的适配器

public class rightrecycadapter extends recyclerview.adapter<rightrecycadapter.viewholder> {

    private context mcontext;
    private list<rightbean.databean> list;

    public rightrecycadapter(context mcontext, list<rightbean.databean> list) {
        this.mcontext = mcontext;
        this.list = list;
    }

    @nonnull
    @override
    public viewholder oncreateviewholder(@nonnull viewgroup viewgroup, int viewtype) {
        view view = layoutinflater.from(mcontext).inflate(r.layout.right_item, viewgroup, false);
        viewholder viewholder=new viewholder(view);
        return viewholder;
    }

    @override
    public void onbindviewholder(@nonnull viewholder viewholder, int position) {
        viewholder.textview.settext(list.get(position).getname());
        list<rightbean.databean.listbean> list = this.list.get(position).getlist();
        gridlayoutmanager gridlayoutmanager=new gridlayoutmanager(mcontext,3);
        viewholder.recyclerview.setlayoutmanager(gridlayoutmanager);
        childadapter childadapter=new childadapter(mcontext,list);
        viewholder.recyclerview.setadapter(childadapter);
    }

    @override
    public int getitemcount() {
        return list.size();
    }

    public class viewholder extends recyclerview.viewholder {
        private textview textview;
        private recyclerview recyclerview;
        public viewholder(@nonnull view itemview) {
            super(itemview);
            textview=itemview.findviewbyid(r.id.name);
            recyclerview=itemview.findviewbyid(r.id.right_recy);
        }
    }
}

//子类适配器

public class childadapter extends recyclerview.adapter<childadapter.viewholder> {

    private context context;
    private list<rightbean.databean.listbean> list;

    public childadapter(context context, list<rightbean.databean.listbean> list) {
        this.context = context;
        this.list = list;
    }

    @nonnull
    @override
    public viewholder oncreateviewholder(@nonnull viewgroup viewgroup, int viewtype) {
        view view = layoutinflater.from(context).inflate(r.layout.child, viewgroup, false);
        viewholder viewholder=new viewholder(view);
        return viewholder;
    }

    @override
    public void onbindviewholder(@nonnull viewholder viewholder, int position) {
        viewholder.textview.settext(list.get(position).getname());
        picasso.with(context).load(list.get(position).geticon()).into(viewholder.imageview);
    }

    @override
    public int getitemcount() {
        return list.size();
    }

    public class viewholder extends recyclerview.viewholder {
        private imageview imageview;
        private textview textview;
        public viewholder(@nonnull view itemview) {
            super(itemview);
            imageview=itemview.findviewbyid(r.id.image2);
            textview=itemview.findviewbyid(r.id.title1);
        }
    }
}

//开始使用

public class fragment1 extends fragment implements leftview,rightview {

    private view view;
    private recyclerview left;
    private recyclerview right;
    private rightpresenter rightpresenter;

    handler handler=new handler(){
        @override
        public void handlemessage(message msg) {
            super.handlemessage(msg);
            final list<leftbean.databean> list = (list<leftbean.databean>) msg.obj;
            linearlayoutmanager linearlayoutmanager=new linearlayoutmanager(getactivity(),linearlayoutmanager.vertical,false);
            left.setlayoutmanager(linearlayoutmanager);
            leftrecycadapter leftrecycadapter=new leftrecycadapter(getactivity(),list);
            left.setadapter(leftrecycadapter);
            leftrecycadapter.setonclicklistener(new leftrecycadapter.onclicklistener() {
                @override
                public void onclick(view view, int position) {
                    int cid = list.get(position).getcid();
                    rightpresenter.showright("http://www.zhaoapi.cn/product/getproductcatagory?cid="+cid);
                }
            });
            //list<rightbean.databean> list1 = (list<rightbean.databean>) msg.obj;

        }
    };

    @nullable
    @override
    public view oncreateview(@nonnull layoutinflater inflater, @nullable viewgroup container, @nullable bundle savedinstancestate) {
        view = inflater.inflate(r.layout.fragment_fragment1, container, false);
        initview();
        return view;
    }

    private void initview() {
        leftpresenter leftpresenter=new leftpresenter(this);
        leftpresenter.showleft();
        left = (recyclerview) view.findviewbyid(r.id.left_recy);
        right = (recyclerview) view.findviewbyid(r.id.right_recy);
        rightpresenter = new rightpresenter(this);
    }

    @override
    public void onsuccess(list<leftbean.databean> list) {
        message message = message.obtain();
        message.obj=list;
        handler.sendmessage(message);
    }

    @override
    public void failer(string error) {

    }

    @override
    public void onsuccess2(final list<rightbean.databean> list) {
        /*message message = message.obtain();
        message.obj=list;
        handler.sendmessage(message);*/


                handler.post(new runnable() {
                    @override
                    public void run() {
                        linearlayoutmanager linear= new linearlayoutmanager(getactivity(),linearlayoutmanager.vertical,false);
                        right.setlayoutmanager(linear);
                        rightrecycadapter rightrecycadapter=new rightrecycadapter(getactivity(),list);
                        right.setadapter(rightrecycadapter);

                    }
                });

}
    @override
    public void onfailer2(string error) {

    }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

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