我的第一个Retrofit小demo

先看下项目结构

MainActivity

package com.cisetech.myretrofitdemo;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

public class MainActivity extends Activity {

    private static final String TAG = "MainActivity";


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

        TvService tvService = RetrofitWrapper.getInstance().create(TvService.class);
        Call<TvInfo> call = tvService.getTvInfoList(
                "1", "8a7204eb63ba0bab009b338025f42df2"
        );
        call.enqueue(
                new Callback<TvInfo>() {
                    @Override
                    public void onResponse(Call<TvInfo> call, Response<TvInfo> response) {
                        TvInfo tv = response.body();
                        //这里显示了列表中的第一条的内容，所以get(0)
                        Toast.makeText(
                                MainActivity.this,
                                tv.getResult().get(0).getChannelName(),
                                Toast.LENGTH_LONG
                        ).show();
                        Log.i(TAG,response.body().toString());
                    }

                    @Override
                    public void onFailure(Call<TvInfo> call, Throwable t) {
                        Toast.makeText(MainActivity.this, t.getMessage(), Toast.LENGTH_LONG).show();
                    }
                }
        );


    }
}

RetrofitWrapper

package com.cisetech.myretrofitdemo;

import android.content.Context;

import retrofit2.GsonConverterFactory;
import retrofit2.Retrofit;

/**
 * Created by Jaycee on 16/4/19.
 * E-mail：[email protected]
 */
public class RetrofitWrapper {

    private static RetrofitWrapper instance;
    private Context mContext;
    private Retrofit retrofit;

    private RetrofitWrapper() {
        retrofit = new Retrofit.Builder().baseUrl(Constant.BASE_URL).addConverterFactory(
                GsonConverterFactory.create()).build();
    }

    public static RetrofitWrapper getInstance() {
        if (instance == null) {
            synchronized (RetrofitWrapper.class) {
                instance = new RetrofitWrapper();
            }
        }
        return instance;
    }

    public <T> T create(Class<T> service) {
        return retrofit.create(service);
    }

    public class Constant {
        public static final String BASE_URL = "http://japi.juhe.cn";
    }
}

TvInfo

package com.cisetech.myretrofitdemo;

import java.util.List;

/**
 * Created by Jaycee on 16/4/19.
 * E-mail：[email protected]
 */
public class TvInfo {


    /**
     * error_code : 0
     * reason : Success!
     * result : [{"channelName":"CCTV-1 综合","pId":1,"rel":"cctv1","url":"http://tv.cntv.cn/live/cctv1"},{"channelName":"CCTV-2 财经","pId":1,"rel":"cctv2","url":"http://tv.cntv.cn/live/cctv2"},{"channelName":"CCTV-3 综艺","pId":1,"rel":"cctv3","url":"http://tv.cntv.cn/live/cctv3"},{"channelName":"CCTV-4 (亚洲)","pId":1,"rel":"cctv4","url":"http://tv.cntv.cn/live/cctv4"},{"channelName":"CCTV-4 (欧洲)","pId":1,"rel":"cctveurope","url":"http://tv.cntv.cn/live/cctveurope"},{"channelName":"CCTV-4 (美洲)","pId":1,"rel":"cctvamerica","url":"http://tv.cntv.cn/live/cctvamerica"},{"channelName":"CCTV-5 体育","pId":1,"rel":"cctv5","url":"http://tv.cntv.cn/live/cctv5"},{"channelName":"CCTV-6 电影","pId":1,"rel":"cctv6","url":"http://tv.cntv.cn/live/cctv6"},{"channelName":"CCTV-7 军事农业","pId":1,"rel":"cctv7","url":"http://tv.cntv.cn/live/cctv7"},{"channelName":"CCTV-8 电视剧","pId":1,"rel":"cctv8","url":"http://tv.cntv.cn/live/cctv8"},{"channelName":"CCTV-9 纪录","pId":1,"rel":"cctvjilu","url":"http://tv.cntv.cn/live/cctvjilu"},{"channelName":"CCTV-9 纪录(英)","pId":1,"rel":"cctvdoc","url":"http://tv.cntv.cn/live/cctvdoc"},{"channelName":"CCTV-10 科教","pId":1,"rel":"cctv10","url":"http://tv.cntv.cn/live/cctv10"},{"channelName":"CCTV-11 戏曲","pId":1,"rel":"cctv11","url":"http://tv.cntv.cn/live/cctv11"},{"channelName":"CCTV-12 社会与法","pId":1,"rel":"cctv12","url":"http://tv.cntv.cn/live/cctv12"},{"channelName":"CCTV-13 新闻","pId":1,"rel":"cctv13","url":"http://tv.cntv.cn/live/cctv13"},{"channelName":"CCTV-14 少儿","pId":1,"rel":"cctvchild","url":"http://tv.cntv.cn/live/cctvchild"},{"channelName":"CCTV-15 音乐","pId":1,"rel":"cctv15","url":"http://tv.cntv.cn/live/cctv15"},{"channelName":"CCTV-NEWS","pId":1,"rel":"cctv9","url":"http://tv.cntv.cn/live/cctv9"},{"channelName":"CCTV-Français","pId":1,"rel":"cctvfrench","url":"http://tv.cntv.cn/live/cctvfrench"},{"channelName":"CCTV-Español","pId":1,"rel":"cctvxiyu","url":"http://tv.cntv.cn/live/cctvxiyu"},{"channelName":"CCTV-العربية","pId":1,"rel":"cctvarabic","url":"http://tv.cntv.cn/live/cctvarabic"},{"channelName":"CCTV-Русский","pId":1,"rel":"cctvrussian","url":"http://tv.cntv.cn/live/cctvrussian"},{"channelName":"CCTV体育赛事","pId":1,"rel":"cctv5plus","url":"http://tv.cntv.cn/live/cctv5plus"}]
     */

    private int error_code;
    private String reason;
    /**
     * channelName : CCTV-1 综合
     * pId : 1
     * rel : cctv1
     * url : http://tv.cntv.cn/live/cctv1
     */

    private List<ResultEntity> result;

    public int getError_code() { return error_code;}

    public void setError_code(int error_code) { this.error_code = error_code;}

    public String getReason() { return reason;}

    public void setReason(String reason) { this.reason = reason;}

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

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

    public static class ResultEntity {
        private String channelName;
        private int pId;
        private String rel;
        private String url;

        public String getChannelName() { return channelName;}

        public void setChannelName(String channelName) { this.channelName = channelName;}

        public int getPId() { return pId;}

        public void setPId(int pId) { this.pId = pId;}

        public String getRel() { return rel;}

        public void setRel(String rel) { this.rel = rel;}

        public String getUrl() { return url;}

        public void setUrl(String url) { this.url = url;}
    }

}

TvService

package com.cisetech.myretrofitdemo;

import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.Query;

/**
 * Created by Jaycee on 16/4/19.
 * E-mail：[email protected]
 * http://japi.juhe.cn
 */
public interface TvService {

    @GET("/tv/getChannel")
    Call<TvInfo> getTvInfoList(@Query("pId") String pId, @Query("key") String key);
}