week03轮播+ MVP展示：

其他 2019-04-14 14:51:18 阅读次数: 0

加依赖：

 implementation 'com.youth.banner:banner:1.4.9'
    implementation 'com.squareup.okhttp3:okhttp:3.7.0'
    implementation 'com.android.support:recyclerview-v7:28.0.0'
    implementation 'com.github.bumptech.glide:glide:4.9.0'
    implementation 'com.google.code.gson:gson:2.8.1'
    implementation 'com.jcodecraeer:xrecyclerview:1.2.0'

 记住写权限：

布局：

activity_main:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    android:orientation="vertical"
    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"
    tools:context=".v.MainActivity">



    <com.youth.banner.Banner
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="2"
        android:id="@+id/my_banner"
        ></com.youth.banner.Banner>
    <com.jcodecraeer.xrecyclerview.XRecyclerView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="8"
        android:id="@+id/recy_id"></com.jcodecraeer.xrecyclerview.XRecyclerView>


</LinearLayout>



listview01:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    android:orientation="vertical"
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal">
        <TextView
            android:text="哈哈"
            android:textSize="20sp"
            android:padding="10dp"
            android:id="@+id/text_01"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal">
        <ImageView
            android:padding="10dp"
            android:src="@mipmap/ic_launcher"
            android:id="@+id/image_01"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

</LinearLayout>


listview02:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    android:orientation="vertical"
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal">
        <ImageView
            android:padding="10dp"
            android:src="@mipmap/ic_launcher"
            android:id="@+id/image_02"
            android:layout_width="200dp"
            android:layout_height="200dp" />
    </LinearLayout>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal">
        <TextView
            android:textSize="20sp"
            android:text="哈哈"
            android:padding="10dp"
            android:id="@+id/text_02"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

</LinearLayout>

主方法：



工具类：
public class OkhttpUtil {
    static OkhttpUtil util;
    OkHttpClient okHttpClient;
    //构造方法私有化
    private OkhttpUtil(){
        okHttpClient = new OkHttpClient.Builder().addInterceptor(new MyIntercept()).build();

    }
    public static synchronized OkhttpUtil getInstance(){
        if (util==null){
            util=new OkhttpUtil();
        }
        return util;
    }
    public void doGet(Callback callback){
        Request request=new Request.Builder()
                .url("http://172.17.8.100/small/commodity/v1/bannerShow")
                .get()
                .build();
        Call call=okHttpClient.newCall(request);
        call.enqueue(callback);
    }
    public void getGet(String url, Map<String,String>map,Callback callback){
        StringBuilder builder=new StringBuilder();
        if (map!=null&&map.size()>0){
            for (String key:map.keySet()){
                String value=map.get(key);
                builder.append(key)
                        .append("=")
                        .append(value)
                        .append("&");
            }
            String str=builder.toString();
            int index = str.lastIndexOf("&");
            str=str.substring(0,index);
            url=url+"?"+str;
            Request request=new Request.Builder()
                    .url(url)
                    .get()
                    .build();
            Call call=okHttpClient.newCall(request);
            call.enqueue(callback);
        }
    }
    public class MyIntercept implements Interceptor{
        @Override
        public Response intercept(Chain chain) throws IOException{
            Request request=chain.request();
            Response response=chain.proceed(request);
            return response;
        }
    }
}





contarct类：
public interface ContarctIntface {
    //view层接口
    public interface ProductViewIntface{
        public void ShowImage(Object obj);
        public void ShowDisplay(Object obj);

    }
    //p层接口
    public interface PresenterIntface{
        public void toImage();
        public void toProduct(int page);
    }
}



m层：
public class MyModel {
    MyCallBack myCallBack;
    MyCallBacks myCallBacks;
    Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            int type = msg.arg1;
            String json=(String)msg.obj;
            if (type==1){
                Log.e("ddd",""+json);
                Gson gson=new Gson();
                PickBean pickBean=gson.fromJson(json,PickBean.class);
                List<Pick> result = pickBean.getResult();
                Log.e("bbb",""+result);
                myCallBack.success(result);
            }
            if (type==2){
                Log.e("aaaa",""+json);
                Gson gson=new Gson();
                ProductBean productBean = gson.fromJson(json,ProductBean.class);
                List<Product> s = productBean.getResult();
                Log.e("bbbb",""+s);
                myCallBacks.successes(s);
            }
        }
    };
    public void getRequest(){
        OkhttpUtil util = OkhttpUtil.getInstance();
        util.doGet(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {

                String json = response.body().string();
                Message message = new Message();
                message.obj=json;
                message.arg1=1;
                handler.sendMessage(message);
            }
        });
    }
    public void getResponse(String url, Map<String,String>map){
        OkhttpUtil util=OkhttpUtil.getInstance();
        util.getGet(url, map, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {

                String json=response.body().string();
                Message message=new Message();
                message.arg1=2;
                message.obj=json;
                handler.sendMessage(message);
            }
        });
    }

    public void setMyCallBack(MyCallBack myCallBack){
        this.myCallBack=myCallBack;
    }
    public void setMyCallBacks(MyCallBacks myCallBacks){
        this.myCallBacks=myCallBacks;
    }
    public interface MyCallBack{
        public void success(Object obj);
    }
    public interface MyCallBacks{
        public void successes(Object obj);
    }
}






p层：
public class MyPresenter<T> implements ContarctIntface.PresenterIntface {
    MyModel myModel;
    T tt;
    public MyPresenter(T t){
        this.tt=t;
        myModel=new MyModel();

    }
    @Override
    public void toImage() {
        myModel.setMyCallBack(new MyModel.MyCallBack() {
            @Override
            public void success(Object obj) {
             List<Pick>list= (List<Pick>) obj;
              Log.e("ppp",""+list);
              ContarctIntface.ProductViewIntface productViewIntface=(ContarctIntface.ProductViewIntface) tt;
              productViewIntface.ShowImage(list);
            }
        });
        myModel.getRequest();
    }

    @Override
    public void toProduct(int page) {

        String url="http://172.17.8.100/small/commodity/v1/findCommodityByKeyword";
        myModel.setMyCallBacks(new MyModel.MyCallBacks() {
            @Override
            public void successes(Object obj) {
                List<Product>list=(List<Product>) obj;
                Log.e("uuu",""+list);
                ContarctIntface.ProductViewIntface productViewIntface=(ContarctIntface.ProductViewIntface) tt;
                productViewIntface.ShowDisplay(list);
            }
        });
        Map<String,String>map=new HashMap<>();
        map.put("keyword","手机");
        map.put("page",page+"");
        map.put("count","20");
        myModel.getResponse(url,map);
    }
}





v层：
public class MainActivity extends AppCompatActivity implements ContarctIntface.ProductViewIntface{
    Banner banner;
    XRecyclerView xRecyclerView;
    ContarctIntface.PresenterIntface presenterIntface;
    List<Pick>mlist=new ArrayList<>();
    List<Product>slist=new ArrayList<>();
    List<String>plist=new ArrayList<>();
    MyAdapter myAdapter;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        banner=findViewById(R.id.my_banner);
        xRecyclerView=findViewById(R.id.recy_id);
        LinearLayoutManager layoutManager=new LinearLayoutManager(this);
        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
        xRecyclerView.setLayoutManager(layoutManager);
        xRecyclerView=findViewById(R.id.recy_id);
        xRecyclerView.setLoadingMoreEnabled(true);
        xRecyclerView.setPullRefreshEnabled(true);
        presenterIntface=new MyPresenter(this);
        myAdapter=new MyAdapter(slist,this);
        xRecyclerView.setAdapter(myAdapter);
        presenterIntface=new MyPresenter(this);
        presenterIntface.toImage();
        presenterIntface.toProduct(1);
        xRecyclerView.setLoadingListener(new XRecyclerView.LoadingListener() {
            @Override
            public void onRefresh() {
                slist.clear();
                presenterIntface.toProduct(1);
            }
            int page=1;


            @Override
            public void onLoadMore() {

                page++;
                presenterIntface.toProduct(page);
            }
        });

    }

    @Override
    public void ShowImage(Object obj) {
        List<Pick>list=(List<Pick>) obj;
        mlist.addAll(list);
        Log.e("aaa",""+mlist);
        for (int i=0;i<mlist.size();i++){
            plist.add(mlist.get(i).getImageUrl());
        }
        Log.e("ggg",""+plist);
        banner.isAutoPlay(true);
        banner.setDelayTime(2000);
        banner.setImages(plist);
        banner.setImageLoader(new ImageLoader() {
            @Override
            public void displayImage(Context context, Object path, ImageView imageView) {
                Glide.with(context).load(path).into(imageView);
            }
        });
        banner.start();

    }


    @Override
    public void ShowDisplay(Object obj) {

        xRecyclerView.refreshComplete();
        xRecyclerView.loadMoreComplete();
        List<Product>list=(List<Product>) obj;
        slist.addAll(list);
        myAdapter.notifyDataSetChanged();
    }
}





适配器MyAdapter类：
public class MyAdapter extends XRecyclerView.Adapter<MyAdapter.Holder>{
    List<Product> list;
    Context context;
    int type=1;

    public MyAdapter(List<Product> list, Context context) {
        this.list = list;
        this.context = context;
    }

    @NonNull
    @Override
    public Holder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        if (type==1){
            View view=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.listview01,null);
            return new Holder(view);
        }else {
            View view=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.listview02,null);
            return new Holder(view);
        }
    }

    @Override
    public void onBindViewHolder(@NonNull Holder holder, int i) {
        if (type==1){
            String title=list.get(i).getCommodityName();
            String imgUrl=list.get(i).getMasterPic();
            holder.textView1.setText(title);
            Glide.with(context).load(imgUrl).into(holder.imageView1);
        }else {
            String title=list.get(i).getCommodityName();
            String imgUrl=list.get(i).getMasterPic();
            holder.textView2.setText(title);
            Glide.with(context).load(imgUrl).into(holder.imageView2);
        }

    }

    @Override
    public int getItemViewType(int position) {
        type=position%2;
        if (type==0){
            type=2;
            return type;
        }else {
            type=1;
            return  type;
        }
    }

    @Override
    public int getItemCount() {
        if (list!=null){
            return list.size();
        }
        return 0;
    }

    public class Holder extends XRecyclerView.ViewHolder{
        public TextView textView1,textView2;
        public ImageView imageView1,imageView2;
        public Holder(@NonNull View itemView) {
            super(itemView);
            if (type==1){
                textView1=itemView.findViewById(R.id.text_01);
                imageView1=itemView.findViewById(R.id.image_01);
            }else {
                textView2=itemView.findViewById(R.id.text_02);
                imageView2=itemView.findViewById(R.id.image_02);
            }
        }
    }
}





Bean类：
Pick
public class Pick {
    public String imageUrl;
    public String jumpUrl;
    public String rank;
    public String title;

    public Pick(String imageUrl, String jumpUrl, String rank, String title) {
        this.imageUrl = imageUrl;
        this.jumpUrl = jumpUrl;
        this.rank = rank;
        this.title = title;
    }

    @Override
    public String toString() {
        return "Pick{" +
                "imageUrl='" + imageUrl + '\'' +
                ", jumpUrl='" + jumpUrl + '\'' +
                ", rank='" + rank + '\'' +
                ", title='" + title + '\'' +
                '}';
    }

    public String getImageUrl() {
        return imageUrl;
    }

    public void setImageUrl(String imageUrl) {
        this.imageUrl = imageUrl;
    }

    public String getJumpUrl() {
        return jumpUrl;
    }

    public void setJumpUrl(String jumpUrl) {
        this.jumpUrl = jumpUrl;
    }

    public String getRank() {
        return rank;
    }

    public void setRank(String rank) {
        this.rank = rank;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }
}


PickBean:
public class PickBean {
    public List<Pick> result;

    public PickBean(List<Pick> result) {
        this.result = result;
    }

    @Override
    public String toString() {
        return "PickBean{" +
                "result=" + result +
                '}';
    }

    public List<Pick> getResult() {
        return result;
    }

    public void setResult(List<Pick> result) {
        this.result = result;
    }
}



product:
public class Product {
    public String commodityId;
    public String commodityName;
    public String masterPic;
    public String price;
    public String saleNum;

    public Product(String commodityId, String commodityName, String masterPic, String price, String saleNum) {
        this.commodityId = commodityId;
        this.commodityName = commodityName;
        this.masterPic = masterPic;
        this.price = price;
        this.saleNum = saleNum;
    }

    public String getCommodityId() {
        return commodityId;
    }

    public void setCommodityId(String commodityId) {
        this.commodityId = commodityId;
    }

    public String getCommodityName() {
        return commodityName;
    }

    public void setCommodityName(String commodityName) {
        this.commodityName = commodityName;
    }

    public String getMasterPic() {
        return masterPic;
    }

    public void setMasterPic(String masterPic) {
        this.masterPic = masterPic;
    }

    public String getPrice() {
        return price;
    }

    public void setPrice(String price) {
        this.price = price;
    }

    public String getSaleNum() {
        return saleNum;
    }

    public void setSaleNum(String saleNum) {
        this.saleNum = saleNum;
    }

    @Override
    public String toString() {
        return "Product{" +
                "commodityId='" + commodityId + '\'' +
                ", commodityName='" + commodityName + '\'' +
                ", masterPic='" + masterPic + '\'' +
                ", price='" + price + '\'' +
                ", saleNum='" + saleNum + '\'' +
                '}';
    }
}


productBean:
public class ProductBean {
    public List<Product> result;

    public ProductBean(List<Product> result) {
        this.result = result;
    }

    @Override
    public String toString() {
        return "ProductBean{" +
                "result=" + result +
                '}';
    }

    public List<Product> getResult() {
        return result;
    }

    public void setResult(List<Product> result) {
        this.result = result;
    }
}

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