MVP+Okhttp 解析展示+搜索商品+点击跳转详情

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它用到的依赖:

mplementation 'com.squareup.okhttp3:okhttp:3.6.0'
implementation 'com.squareup.okio:okio:1.11.0'
implementation 'com.google.code.gson:gson:2.8.5'
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'
implementation 'com.github.bumptech.glide:glide:4.9.0'

它用到的权限:

 <uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

先看MVP的View层接口

public interface IView {

    //获取数据显示
    public void getView(Object data);
}

看MVP的Psenter层接口

public interface Ipsenter {
    //解收对象
    void getpreData(String mTextEditString,String page,String count);
    //解绑
    void attchView(Iview iview);
    void DetchView();

}


看MVP的Model层接口

public interface Imodel {
    public void getDate(String mCallback, String mTextEditString, String page, MCallback count);
    interface MCallback{
       public void onSuccess(Object data);
       public void onFail(Object erreo);
    }
}

看MainAcitivity的代码


/**
 * Mr_Zhao
 * Mainactivity
 * 2019/3/18
 */
public class MainActivity extends AppCompatActivity implements Iview {

    private Psenter psenter;
    private RecyclerView mRecyc;
    private shopAdapter adapter;
    private JsonBean jsonBean;
    private EditText mEdit;
    private Button mButton;
    //这个是死值是初始显示数据
    private String mTextEditString = "手机";
    String page = "1";
    String count = "10";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
//实例化P层
        psenter = new Psenter();
        psenter.attchView(this);
        psenter.getpreData(mTextEditString, page, count);
        initView();
    }

    private void initView() {
        mRecyc = findViewById(R.id.mRecyc);
        mEdit = findViewById(R.id.edi_cha);
        mButton = findViewById(R.id.button_cha);
        mRecyc.setLayoutManager(new GridLayoutManager(this, 2));
        mButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //这个是活值是输入框的内容
                String mTextEditString1 = mEdit.getText().toString();
                if (!mTextEditString1.isEmpty()){
                    psenter.getpreData(mTextEditString1, page, count);
                }else{
                    Toast.makeText(MainActivity.this,"不能为空",Toast.LENGTH_LONG).show();
                }
            }
        });
    }
    @Override
    public void getView(Object obj) {
        if (obj != null) {
            jsonBean = (JsonBean) obj;
            adapter = new shopAdapter(MainActivity.this, jsonBean);
            mRecyc.setAdapter(adapter);
            //接口回调点击事件跳转详情页
            adapter.setRecyclerviewListener(new shopAdapter.RecyclerviewListenner() {
                @Override
                public void callBack(int i, String id) {
                    Intent intent = new Intent(MainActivity.this, XActivity.class);
                    intent.putExtra("id", id);
                    startActivity(intent);
                }
            });
        }
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        psenter.DetchView();
    }
}


MainAcitivity展示用到Adapter,这是Adapter类

/**
 * Mr_Zhao
 * 适配器
 * 2019/3/18
 */
public class shopAdapter extends RecyclerView.Adapter<shopAdapter.ViewHolder>{
    Context context;
    JsonBean jsonBean;

    public shopAdapter(Context context, JsonBean jsonBean) {
        this.context = context;
        this.jsonBean = jsonBean;
    }

    @NonNull
    @Override
    public shopAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        View view = (View) LayoutInflater.from(context).inflate(R.layout.item,viewGroup,false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull shopAdapter.ViewHolder viewHolder, final int i) {

        Glide.with(context).load(jsonBean.getResult().get(i).getMasterPic())
                .into(viewHolder.image);
        viewHolder.mText.setText(jsonBean.getResult().get(i).getCommodityName());

        viewHolder.itemView.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                recyclerviewListenner.callBack(v.getId(), String.valueOf(jsonBean.getResult().get(i).getCommodityId()));
            }
        });
    }

    @Override
    public int getItemCount() {
        return jsonBean.getResult().size();

    }
    public class ViewHolder extends RecyclerView.ViewHolder{

        private final ImageView image;
        private final TextView mText;

        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            image = itemView.findViewById(R.id.mImage);
            mText = itemView.findViewById(R.id.mText);


        }
    }
    RecyclerviewListenner recyclerviewListenner;
    public void setRecyclerviewListener(RecyclerviewListenner recyclerviewListenner) {
        this.recyclerviewListenner = recyclerviewListenner;
    }

    public interface RecyclerviewListenner{
        void callBack(int i, String id);
    }
}

MainAcitivity实例到了P层类,这是P层类

/**
 * Mr_Zhao
 * p层
 * 2019/3/18
 */
public class Psenter implements Ipsenter {
    MainActivity mainActivity;
    private Imodel model;
    private SoftReference<Imodel> softReference;

    @Override
    public void getpreData(final String mTextEditString, final String page, String count) {
        model.getDate(mTextEditString,page,count,new Imodel.MCallback() {
            @Override
            public void onSuccess(Object data) {
                mainActivity.getView(data);
            }

            @Override
            public void onFail(Object erreo) {

            }
        });
    }
    @Override
    public void attchView(Iview iview) {
        this.mainActivity= (MainActivity) iview;
        model = new Model();
        softReference = new SoftReference<Imodel>(model);
    }

    //防止内存泄漏 一行代码五分
    @Override
    public void DetchView() {
        softReference.clear();
    }
}

P层类实例到了M层类,这是M层类

/*
 * 商品搜索列表
 * */
public class Model implements Imodel {
   //String Base_Url="http://172.17.8.100/small/commodity/v1/findCommodityByKeyword?keyword=1&page=1&count=71";
    String Base_Url="http://172.17.8.100/small/commodity/v1/findCommodityByKeyword";
    @Override
    public void getDate(String mTextEditString ,String page,String count,final MCallback mCallback) {
        Log.e("Tag",mTextEditString+"这个商品 "+page+"= page ="+ count+"M层");

        OkHttp.getInstance().doGet(Base_Url+"?"+"keyword="+mTextEditString+"&page="+page+"&count="+count, JsonBean.class, new OkHttp.NetCallBack() {
            @Override
            public void LoadSuccess(Object obj) {

                mCallback.onSuccess(obj);
                Log.e("Tag",obj+"=====M层obj");
            }

            @Override
            public void LoadFail() {

            }
        });
    }
}

M层类调用工具类的方法,这是工具类

package com.bawei.zhaozhiwei2019.http;

import android.os.Environment;
import android.os.Handler;
import android.util.Log;

import com.google.gson.Gson;

import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

import okhttp3.Cache;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.Interceptor;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class OkHttp {
    private OkHttpClient client;
    private static volatile OkHttp instance;
    private Handler handler = new Handler();

    //创建拦截器
    private Interceptor getAppInterceptor()
    {
        Interceptor interceptor= new Interceptor() {
            @Override
            public Response intercept(Chain chain) throws IOException {

                Request request = chain.request();
                Log.e("++++++","拦截前");
                Response response = chain.proceed(request);
                Log.e("++++++","拦截后");
                return response;
            }
        };
        return interceptor;
    }
    //添加拦截器
     private OkHttp()
     {
         File file = new File(Environment.getExternalStorageDirectory(), "cache1");
         client = new OkHttpClient().newBuilder()
                 .readTimeout(3000,TimeUnit.SECONDS)
                 .connectTimeout(3000,TimeUnit.SECONDS)
                 .addInterceptor(getAppInterceptor())
                 .cache(new Cache(file,10*1024))
                 .build();
     }
     //创建单例
    public  static OkHttp getInstance()
    {
        if(instance == null)
        {
            synchronized (OkHttp.class)
            {
                if(null == instance)
                {
                    instance = new OkHttp();
                }
            }
        }
        return instance;
    }
    //封装doget方法
    public void doGet(String url, final Class clazz, final NetCallBack netCallBack)
    {
        // 2. 创建一个请求对象
        Request request = new Request.Builder()
                .get()
                .url(url)
                .build();
        //创建call对象
        Call call = client.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String string = response.body().string();
                Gson gson = new Gson();
                final Object o = gson.fromJson(string, clazz);
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        netCallBack.LoadSuccess(o);
                    }
                });
            }
        });
    }
    //封装dopost请求
    public void doPost(String url, final Class clazz, String name,String pwd, final NetCallBack netCallBack)
    {
        //新建okhttp对象
        client = new OkHttpClient();
        /**
         * 通过体传值
         */
        FormBody build = new FormBody.Builder()
                .add("phone", name)
                .add("pwd", pwd)
                .build();
        Request request = new Request.Builder()
                .url(url)
                .post(build)
                .build();
        Call call = client.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String string = response.body().string();
                Gson gson = new Gson();
                final Object o = gson.fromJson(string, clazz);
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        netCallBack.LoadSuccess(o);
                    }
                });
            }
        });
    }
    public interface NetCallBack{
    void LoadSuccess(Object obj);
    void LoadFail();
}
}

XActivity详情代码

public class XActivity extends AppCompatActivity{
    public static final String TAG="XiangActivity";
    private int id;
    bean bean1;
    public static final String BaseUrl="http://172.17.8.100/small/commodity/v1/findCommodityDetailsById";
    private String id1;
    private ViewPager pager;
    private WebView webView;
    private TextView text_image;
    private TextView textView1;
    private TextView item_text;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_x);
        pager = findViewById(R.id.pager);
        webView = findViewById(R.id.web);
        text_image = findViewById(R.id.text_image);
        textView1 = findViewById(R.id.text1);
        item_text = findViewById(R.id.item_text);

        Intent intent = getIntent();
        id1 = intent.getStringExtra("id");
        Toast.makeText(XActivity.this,id1+"id",Toast.LENGTH_LONG).show();
        if (!id1.isEmpty()){
            getdata(id1);
        }

    }
    private void getdata(final String id){
  																							  //新的一个bean类,封装上面接口
        OkHttp.getInstance().doGet(BaseUrl + "?commodityId=" + id, bean.class, new OkHttp.NetCallBack() {
            @Override
            public void LoadSuccess(Object obj) {
                bean1= (bean) obj;
                Log.i(TAG, "LoadSuccess: "+bean1.getResult().getCommodityName());
                bean.ResultBean result = ((bean) obj).getResult();
                String details = result.getDetails();
                webView.loadData(details,"text/html","UTF-8");
                //设置webview本页加载数据
                webView.setWebViewClient(new WebViewClient());
                final WebSettings settings = webView.getSettings();
                settings.setJavaScriptEnabled(true);

                String picture = result.getPicture();
                int price = result.getPrice();
                String describe = result.getDescribe();
                String commodityName = result.getCommodityName();
                item_text.setText("¥:"+price+"");
                textView1.setText(describe);

                String[] split = picture.split(",");
                final ArrayList<ImageView> imageViews = new ArrayList<>();
                for (int i=0;i<split.length;i++){
                    String s = split[i];
                    ImageView imageView = new ImageView(XActivity.this);
                    Glide.with(XActivity.this).load(split[i]).into(imageView);
                    imageViews.add(imageView);
                }
                pager.setAdapter(new PagerAdapter() {
                    @Override
                    public int getCount() {
                        return imageViews.size();
                    }

                    @Override
                    public boolean isViewFromObject(@NonNull View view, @NonNull Object o) {
                        return view==o;
                    }

                    //得自己打粗来
                    @NonNull
                    @Override
                    public Object instantiateItem(@NonNull ViewGroup container, int position) {
                        ImageView imageView = imageViews.get(position);
                        container.addView(imageView);
                        return imageView;
                    }

                    @Override
                    public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
                        container.removeView((View) object);
                    }
                });
            }

            @Override
            public void LoadFail() {

            }
        });
    }


}

MainActivity布局

<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="wrap_content"
    android:orientation="vertical"
    tools:context=".MainActivity">
    <include
        android:id="@+id/sou"
        layout="@layout/sou_item"/>

    <android.support.v7.widget.RecyclerView
        android:id="@+id/mRecyc"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        tools:ignore="MissingConstraints" />

</LinearLayout>

搜索框布局

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

    <LinearLayout
        android:layout_width="match_parent"
        android:background="#ccd"
        android:orientation="horizontal"
        android:layout_height="?attr/actionBarSize">
        <ImageView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher_background"
            tools:ignore="Suspicious0dp" />
        <EditText
            android:id="@+id/edi_cha"
            android:layout_width="0dp"
            android:hint="卫衣"
            android:singleLine="true"
            android:layout_weight="7"
            android:layout_height="match_parent" />
        <Button
            android:id="@+id/button_cha"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="2"
            android:gravity="center"
            android:textSize="20sp"
            android:text="搜索"/>
    </LinearLayout>

</LinearLayout>

Adapter设置显示布局

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

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
                <ImageView
                    android:id="@+id/image_view"
                    android:layout_weight="2"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    />
                <TextView
                    android:id="@+id/text_view"
                    android:layout_weight="8"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    />
        </LinearLayout>
</RelativeLayout>

XActivity布局

<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="vertical"
    >
    <android.support.v4.view.ViewPager
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:id="@+id/pager"
        ></android.support.v4.view.ViewPager>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/text_image"
        android:textColor="@android:color/holo_red_dark"
        android:textSize="20dp"
        />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/text1"
        android:textSize="30dp"
        android:textColor="@android:color/holo_orange_light"
        />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/item_text"
        android:textSize="30dp"
        android:textColor="@android:color/holo_blue_light"
        />
    <WebView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/web"
        ></WebView>
</LinearLayout>
public static Okhttp getInstance(){
        if (Internal.instance==null){
            synchronized (Okhttp.class){
                if (null== Internal.instance){
                    interce = new Okhttp();
                }
            }
        return interce;
    }
}
    public void doGet(String url, Callback callback){
        client = new OkHttpClient();
        request = new Request.Builder()
                .get()
                .url(url)
                .build();
        client.newCall(request).enqueue(callback);

    }

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