Android Demo 调用360搜索接口查询图片

https://gitee.com/olleh/RealTest.git

Gradle

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

    def retrofit_version = "2.1.0"
    def rxjava_version = "2.0.1"

//RxJava的依赖包
    implementation 'io.reactivex.rxjava2:rxjava:' + rxjava_version
//RxAndroid的依赖包
    implementation 'io.reactivex.rxjava2:rxandroid:' + rxjava_version
//Rxjava + retrofit 用到的一个依赖库，使接口回调的数据以Rxjava形式供我们接受
    implementation 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0-RC3'
//retrofig依赖包
    implementation 'com.squareup.retrofit2:retrofit:' + retrofit_version
//自动将服务器返回的数据 以及 我们传给一个JavaBeen实体，转换成json
    implementation 'com.squareup.retrofit2:converter-gson:' + retrofit_version
//gson实体解析库
    implementation 'com.google.code.gson:gson:2.6.2'
//OKHttp日志拦截器，OKHttp官方提供。
    implementation 'com.squareup.okhttp3:logging-interceptor:3.3.0'
    //https://github.com/DingMouRen/LayoutManagerGroup
    implementation 'com.github.DingMouRen:LayoutManagerGroup:1e6f4f96eb'//maven { url 'https://jitpack.io' }
    //https://muyangmin.github.io/glide-docs-cn/
    implementation 'com.github.bumptech.glide:glide:4.11.0'
    implementation 'androidx.recyclerview:recyclerview:1.1.0'
    implementation 'androidx.cardview:cardview:1.0.0'
}

OkHttpManager

package com.zhangyu.realtest.net;

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

import androidx.annotation.NonNull;

import com.google.gson.Gson;
import com.zhangyu.realtest.bean.RealPic;

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

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

public class OkHttpManager implements NetManager {
    private static final String TAG = "OkHttpManager";

    //1.公开的getInstance
    public static OkHttpManager getInstance() {
        return Holder.instance;
    }

    //2.私有的持有类
    private static class Holder {
        private final static OkHttpManager instance = new OkHttpManager();
    }

    //3.私有的构造方法
    private OkHttpManager() {
        OkHttpClient.Builder builder = new OkHttpClient.Builder();
        builder.connectTimeout(15, TimeUnit.SECONDS);
        okHttpClient = builder.build();
    }

    private OkHttpClient okHttpClient;
    private Handler handler = new Handler(Looper.getMainLooper());

    @Override
    public void getPicList(String name, int startNum, int pageNum, @NonNull final NetCallBack netCallBack) {
        Request.Builder builder = new Request.Builder();
        //http://image.so.com/j?q=汉堡包&sn=0&pn=50
        builder.url("http://image.so.com/" + "j?q=" + name + "&sn=" + startNum + "&pn=" + pageNum);
        Request request = builder.get().build();
        Call call = okHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, final IOException e) {
                Log.e(TAG, "onFailure: " + e.getMessage());
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        netCallBack.onFailed(e);
                    }
                });
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                final String data = response.body().string();
                Log.e(TAG, "onResponse: " + data);
                // 使用new方法
                Gson gson = new Gson();
                // fromJson 将json字符串转为bean对象
                final RealPic realPic= gson.fromJson(data, RealPic.class);
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        netCallBack.onSuccess(realPic);
                    }
                });
            }
        });
    }

}

RetrofitManager

package com.zhangyu.realtest.net;

import com.jakewharton.retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
import com.zhangyu.realtest.bean.RealPic;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;

public class RetrofitManager implements NetManager {

    private static final String TAG = "RetrofitManager";

    RealApi realApi;

    private RetrofitManager() {
        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl("http://image.so.com/")
                .addConverterFactory(GsonConverterFactory.create())
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                .build();
        realApi = retrofit.create(RealApi.class);
    }

    public static RetrofitManager getInstance() {
        return SingletonHolder.mInstance;
    }

    private static class SingletonHolder {
        private static final RetrofitManager mInstance = new RetrofitManager();
    }

    @Override
    public void getPicList(String name, int startNum, int pageNum, final NetCallBack netCallBack) {
        realApi.getPicData(name, startNum, pageNum)
                .enqueue(new Callback<RealPic>() {
                    @Override
                    public void onResponse(Call<RealPic> call, Response<RealPic> response) {
                        netCallBack.onSuccess(response.body());
                    }

                    @Override
                    public void onFailure(Call<RealPic> call, Throwable t) {
                        netCallBack.onFailed(t);
                    }
                });
    }
}

RealApi

package com.zhangyu.realtest.net;

import com.zhangyu.realtest.bean.RealPic;

import io.reactivex.Observable;
import okhttp3.ResponseBody;
import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.Query;

public interface RealApi {
    /**
     * http://image.so.com/j?q=汉堡包&sn=0&pn=50
     * (query关键词：汉堡包，开始序号sn=0，item数pn=50)
     */

    @GET("j")
    Observable<ResponseBody> getPicDataRx(@Query("q") String name,
                                        @Query("sn") int sn,
                                        @Query("pn") int pn
    );

    @GET("j")
    Call<RealPic> getPicData(@Query("q") String name,
                             @Query("sn") int sn,
                             @Query("pn") int pn
    );
}

RealPicAdapter

package com.zhangyu.realtest.adapter;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.bumptech.glide.Glide;
import com.zhangyu.realtest.R;
import com.zhangyu.realtest.bean.RealPic;

import java.util.List;

public class RealPicAdapter extends RecyclerView.Adapter<RealPicAdapter.ViewHolder> {

    private Context context;

    public RealPicAdapter(Context context) {
        this.context = context;
    }

    private List<RealPic.ListBean> dataList;

    public void setDataList(List<RealPic.ListBean> dataList) {
        this.dataList = dataList;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_real_pic, parent, false);
        ViewHolder holder = new ViewHolder(view);
        //点击事件
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            }
        });
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        RealPic.ListBean listBean = dataList.get(position);
        Glide.with(context)
                .load(listBean.getThumb())
                .centerCrop()
                .into(holder.imageView);
        holder.textView.setText(listBean.getTitle());
    }

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

    static class ViewHolder extends RecyclerView.ViewHolder {

        private ImageView imageView;
        private TextView textView;

         ViewHolder(@NonNull View itemView) {
            super(itemView);
            imageView = itemView.findViewById(R.id.iv_pic);
            textView = itemView.findViewById(R.id.tv_desc);
        }
    }
}

NetUtil

package com.zhangyu.realtest.net;

public class NetUtil {

    //1.公开的获取单例方法
    public static NetUtil getInstance() {
        return Holder.instance;
    }

    //2.私有的持有类
    private static class Holder {
        private static final NetUtil instance = new NetUtil();
    }

    //3.私有的构造方法
    private NetUtil() {

    }

    private NetManager netManager = RetrofitManager.getInstance();

    public void getData(String name, int startNum, int pageNum, NetCallBack netCallBack) {
        netManager.getPicList(name, startNum, pageNum, netCallBack);
    }

}

MainActivity

package com.zhangyu.realtest;

import android.os.Bundle;
import android.util.Log;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.RecyclerView;

import com.dingmouren.layoutmanagergroup.echelon.EchelonLayoutManager;
import com.zhangyu.realtest.adapter.RealPicAdapter;
import com.zhangyu.realtest.bean.RealPic;
import com.zhangyu.realtest.net.NetCallBack;
import com.zhangyu.realtest.net.NetUtil;

import java.util.List;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "MainActivity";
    private RecyclerView rvPic;
    private RealPicAdapter realPicAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
        initData();
    }

    private void initData() {
        NetUtil.getInstance().getData("饮料", 0, 50, new NetCallBack() {

            @Override
            public void onSuccess(RealPic realPic) {
                List<RealPic.ListBean> list = realPic.getList();
                realPicAdapter = new RealPicAdapter(MainActivity.this);
                realPicAdapter.setDataList(list);
                rvPic.setAdapter(realPicAdapter);
                rvPic.setLayoutManager(new EchelonLayoutManager(MainActivity.this));
            }

            @Override
            public void onFailed(Throwable throwable) {
                Log.e(TAG, "onFailure: " + throwable.toString());
            }
        });
    }

    private void initView() {
        rvPic = (RecyclerView) findViewById(R.id.rv_pic);
    }
}