使用Retrofit和Rxjava让你的网络请求更简单
来源：互联网 发布：java oa项目源码 编辑：程序博客网 时间：2024/05/19 00:10
转载自：http://blog.csdn.net/yanglei0917/article/details/60964151，主要是为了记录方法。
去年的时候好多公司就已经使用Rxjava和Retrofit了，最近自自己学习了一下，感觉真的是很好用，让自己的网络请求变得更简单了，而且封装性极强。首先做一下准备工作，导入需要引用的文件compile 'com.android.support:appcompat-v7:25.1.0' testCompile 'junit:junit:4.12' compile 'io.reactivex:rxjava:1.1.0' compile 'io.reactivex:rxandroid:1.1.0' compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4' compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4' compile 'com.squareup.retrofit2:adapter-rxjava:2.0.0-beta4' compile 'com.google.code.gson:gson:2.6.2' compile 'com.jakewharton:butterknife:7.0.1' compile 'com.android.support:recyclerview-v7:25.1.0'- 1
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网络请求的地址：https://api.douban.com/v2/movie/top250?start=0&count=10添加网络请求权限<uses-permission android:name="android.permission.INTERNET"/>- 1
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首先看一下Retrofit的使用基本用法- 创建一个接口类MovieService 对网络接口进行请求
这里写代码片 - 构建网络请求
public interface MovieService { @GET("top250") Call<MovieBean> getTopMovie(@Query("start")int start, @Query("count")int count);}- 1
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String baseUrl="https://api.douban.com/v2/movie/"; Retrofit retrofit = new Retrofit.Builder() .baseUrl(baseUrl) .addConverterFactory(GsonConverterFactory.create()) .addCallAdapterFactory(RxJavaCallAdapterFactory.create()) .build(); MovieService service = retrofit.create(MovieService.class); service.getTopMovie(0,10) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Subscriber<MovieBean>() { @Override public void onCompleted() { Toast.makeText(MainActivity.this, "Get Top Movie Completed", Toast.LENGTH_SHORT).show(); } @Override public void onError(Throwable e) { resultTV.setText(e.getMessage()); } @Override public void onNext(MovieBean movieBean) { resultTV.setText(movieBean.getTitle()); } }); Call<MovieBean> call = service.getTopMovie(0, 10); call.enqueue(new Callback<MovieBean>() { @Override public void onResponse(Call<MovieBean> call, Response<MovieBean> response) { MovieBean body = response.body(); resultTV.setText(response.body().getTitle()); System.out.println("成功"+response.body().getCount()); } @Override public void onFailure(Call<MovieBean> call, Throwable t) { resultTV.setText(t.getMessage()); } });- 1
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现在看看我们的布局文件MainActivity的xml<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="ledon.com.retrofitdemo.MainActivity"> <Button android:id="@+id/click_me_BN" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:padding="5dp" android:text="获取数据" android:textSize="16sp"/> <ListView android:id="@+id/result_TV" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_above="@id/click_me_BN" android:textSize="16sp"/></RelativeLayout>- 1
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接下来就看看怎么样和RxJava的完美结合了。首先改造一下MovieService这个接口public interface MovieService { @GET("top250") Observable<MovieBean> getTopMovie(@Query("start")int start, @Query("count")int count);}- 1
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然后看一下我们需要创建一个HttpMethods关于一个http的请求方法package ledon.com.retrofitdemo.api;import java.util.List;import java.util.concurrent.TimeUnit;import javax.security.auth.Subject;import ledon.com.retrofitdemo.MovieBean;import okhttp3.OkHttpClient;import retrofit2.Retrofit;import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;import retrofit2.converter.gson.GsonConverterFactory;import rx.Subscriber;import rx.android.schedulers.AndroidSchedulers;import rx.functions.Func1;import rx.schedulers.Schedulers;/** * Created by Administrator on 2017/3/9. */public class HttpMethods { public static final String BASE_URL="https://api.douban.com/v2/movie/"; private static final int DEFAULT_TIMEOUT=5; private Retrofit retrofit; private MovieService movieService; //私有化构造方法 private HttpMethods(){ //手动创建一个okhttpClient并设置超时时间 OkHttpClient.Builder builder = new OkHttpClient.Builder(); builder.connectTimeout(DEFAULT_TIMEOUT, TimeUnit.SECONDS); retrofit=new Retrofit.Builder() .client(builder.build()) .addConverterFactory(GsonConverterFactory.create()) .addCallAdapterFactory(RxJavaCallAdapterFactory.create()) .baseUrl(BASE_URL) .build(); movieService = retrofit.create(MovieService.class); } //在访问httpmethods时候创建单例 private static class SingletonHolder{ private static final HttpMethods INSTANCE=new HttpMethods(); } //获取单例 public static HttpMethods getInstance(){ return SingletonHolder.INSTANCE; } public void getTopMovie(Subscriber<MovieBean>subscriber, int start, int count){ movieService.getTopMovie(start, count) .subscribeOn(Schedulers.io()) .unsubscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(subscriber); }}- 1
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so，很简单，我们的结合之路已经完成，另附源代码package ledon.com.retrofitdemo;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.widget.Button;import android.widget.ListView;import android.widget.RelativeLayout;import android.widget.Toast;import java.util.List;import butterknife.Bind;import butterknife.ButterKnife;import butterknife.OnClick;import ledon.com.retrofitdemo.adapter.MovieAdapter;import ledon.com.retrofitdemo.api.HttpMethods;import rx.Subscriber;public class MainActivity extends AppCompatActivity { @Bind(R.id.click_me_BN) Button clickMeBN; @Bind(R.id.result_TV) ListView resultTV; @Bind(R.id.activity_main) RelativeLayout activityMain; private Subscriber<MovieBean> subscriber; private List<MovieBean.SubjectsBean> list; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ButterKnife.bind(this); //resultTV.setAdapter(); } //进行网络请求 private void getMovie() { subscriber = new Subscriber<MovieBean>() { @Override public void onCompleted() { Toast.makeText(MainActivity.this, "Get Top Movie Completed", Toast.LENGTH_SHORT).show(); } @Override public void onError(Throwable e) { //resultTV.setText(e.getMessage()); } @Override public void onNext(MovieBean movieBean) { // List<MovieBean.SubjectsBean> subjects = movieBean.getSubjects(); list=movieBean.getSubjects(); MovieAdapter movieAdapter=new MovieAdapter(MainActivity.this,list); resultTV.setAdapter(movieAdapter); //resultTV.setText(movieBean.getTitle()); } }; HttpMethods.getInstance().getTopMovie(subscriber, 0, 10); /* String baseUrl="https://api.douban.com/v2/movie/"; Retrofit retrofit = new Retrofit.Builder() .baseUrl(baseUrl) .addConverterFactory(GsonConverterFactory.create()) .addCallAdapterFactory(RxJavaCallAdapterFactory.create()) .build(); MovieService service = retrofit.create(MovieService.class); service.getTopMovie(0,10) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Subscriber<MovieBean>() { @Override public void onCompleted() { Toast.makeText(MainActivity.this, "Get Top Movie Completed", Toast.LENGTH_SHORT).show(); } @Override public void onError(Throwable e) { resultTV.setText(e.getMessage()); } @Override public void onNext(MovieBean movieBean) { resultTV.setText(movieBean.getTitle()); } });*/ //Call<MovieBean> call = service.getTopMovie(0, 10); /* call.enqueue(new Callback<MovieBean>() { @Override public void onResponse(Call<MovieBean> call, Response<MovieBean> response) { MovieBean body = response.body(); resultTV.setText(response.body().getTitle()); System.out.println("成功"+response.body().getCount()); } @Override public void onFailure(Call<MovieBean> call, Throwable t) { resultTV.setText(t.getMessage()); } });*/ } @OnClick(R.id.click_me_BN) public void onClick() { getMovie(); }}- 1
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package ledon.com.retrofitdemo;import java.util.List;/** * Created by Administrator on 2017/3/9. */public class MovieBean { /** * count : 10 * start : 0 * total : 250 * subjects : [{"rating":{"max":10,"average":9.6,"stars":"50","min":0},"genres":["犯罪","剧情"],"title":"肖申克的救赎","casts":[{"alt":"https://movie.douban.com/celebrity/1054521/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/17525.jpg","large":"https://img3.doubanio.com/img/celebrity/large/17525.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/17525.jpg"},"name":"蒂姆·罗宾斯","id":"1054521"},{"alt":"https://movie.douban.com/celebrity/1054534/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/34642.jpg","large":"https://img3.doubanio.com/img/celebrity/large/34642.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/34642.jpg"},"name":"摩根·弗里曼","id":"1054534"},{"alt":"https://movie.douban.com/celebrity/1041179/","avatars":{"small":"https://img1.doubanio.com/img/celebrity/small/5837.jpg","large":"https://img1.doubanio.com/img/celebrity/large/5837.jpg","medium":"https://img1.doubanio.com/img/celebrity/medium/5837.jpg"},"name":"鲍勃·冈顿","id":"1041179"}],"collect_count":1036030,"original_title":"The Shawshank Redemption","subtype":"movie","directors":[{"alt":"https://movie.douban.com/celebrity/1047973/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/230.jpg","large":"https://img3.doubanio.com/img/celebrity/large/230.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/230.jpg"},"name":"弗兰克·德拉邦特","id":"1047973"}],"year":"1994","images":{"small":"https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p480747492.jpg","large":"https://img3.doubanio.com/view/movie_poster_cover/lpst/public/p480747492.jpg","medium":"https://img3.doubanio.com/view/movie_poster_cover/spst/public/p480747492.jpg"},"alt":"https://movie.douban.com/subject/1292052/","id":"1292052"},{"rating":{"max":10,"average":9.4,"stars":"50","min":0},"genres":["剧情","动作","犯罪"],"title":"这个杀手不太冷","casts":[{"alt":"https://movie.douban.com/celebrity/1025182/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/8833.jpg","large":"https://img3.doubanio.com/img/celebrity/large/8833.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/8833.jpg"},"name":"让·雷诺","id":"1025182"},{"alt":"https://movie.douban.com/celebrity/1054454/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/2274.jpg","large":"https://img3.doubanio.com/img/celebrity/large/2274.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/2274.jpg"},"name":"娜塔莉·波特曼","id":"1054454"},{"alt":"https://movie.douban.com/celebrity/1010507/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/104.jpg","large":"https://img3.doubanio.com/img/celebrity/large/104.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/104.jpg"},"name":"加里·奥德曼","id":"1010507"}],"collect_count":1002125,"original_title":"Léon","subtype":"movie","directors":[{"alt":"https://movie.douban.com/celebrity/1031876/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/33301.jpg","large":"https://img3.doubanio.com/img/celebrity/large/33301.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/33301.jpg"},"name":"吕克·贝松","id":"1031876"}],"year":"1994","images":{"small":"https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p511118051.jpg","large":"https://img3.doubanio.com/view/movie_poster_cover/lpst/public/p511118051.jpg","medium":"https://img3.doubanio.com/view/movie_poster_cover/spst/public/p511118051.jpg"},"alt":"https://movie.douban.com/subject/1295644/","id":"1295644"},{"rating":{"max":10,"average":9.5,"stars":"50","min":0},"genres":["剧情","爱情","同性"],"title":"霸王别姬","casts":[{"alt":"https://movie.douban.com/celebrity/1003494/","avatars":{"small":"https://img1.doubanio.com/img/celebrity/small/67.jpg","large":"https://img1.doubanio.com/img/celebrity/large/67.jpg","medium":"https://img1.doubanio.com/img/celebrity/medium/67.jpg"},"name":"张国荣","id":"1003494"},{"alt":"https://movie.douban.com/celebrity/1050265/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/10381.jpg","large":"https://img3.doubanio.com/img/celebrity/large/10381.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/10381.jpg"},"name":"张丰毅","id":"1050265"},{"alt":"https://movie.douban.com/celebrity/1035641/","avatars":{"small":"https://img1.doubanio.com/img/celebrity/small/1399268395.47.jpg","large":"https://img1.doubanio.com/img/celebrity/large/1399268395.47.jpg","medium":"https://img1.doubanio.com/img/celebrity/medium/1399268395.47.jpg"},"name":"巩俐","id":"1035641"}],"collect_count":727900,"original_title":"霸王别姬","subtype":"movie","directors":[{"alt":"https://movie.douban.com/celebrity/1023040/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/750.jpg","large":"https://img3.doubanio.com/img/celebrity/large/750.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/750.jpg"},"name":"陈凯歌","id":"1023040"}],"year":"1993","images":{"small":"https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p1910813120.jpg","large":"https://img3.doubanio.com/view/movie_poster_cover/lpst/public/p1910813120.jpg","medium":"https://img3.doubanio.com/view/movie_poster_cover/spst/public/p1910813120.jpg"},"alt":"https://movie.douban.com/subject/1291546/","id":"1291546"},{"rating":{"max":10,"average":9.4,"stars":"50","min":0},"genres":["剧情","爱情"],"title":"阿甘正传","casts":[{"alt":"https://movie.douban.com/celebrity/1054450/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/551.jpg","large":"https://img3.doubanio.com/img/celebrity/large/551.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/551.jpg"},"name":"汤姆·汉克斯","id":"1054450"},{"alt":"https://movie.douban.com/celebrity/1002676/","avatars":{"small":"https://img1.doubanio.com/img/celebrity/small/51737.jpg","large":"https://img1.doubanio.com/img/celebrity/large/51737.jpg","medium":"https://img1.doubanio.com/img/celebrity/medium/51737.jpg"},"name":"罗宾·怀特","id":"1002676"},{"alt":"https://movie.douban.com/celebrity/1031848/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/1345.jpg","large":"https://img3.doubanio.com/img/celebrity/l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vita è 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* title : 豆瓣电影Top250 */ private int count; private int start; private int total; private String title; private List<SubjectsBean> subjects; public int getCount() { return count; } public void setCount(int count) { this.count = count; } public int getStart() { return start; } public void setStart(int start) { this.start = start; } public int getTotal() { return total; } public void setTotal(int total) { this.total = total; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public List<SubjectsBean> getSubjects() { return subjects; } public void setSubjects(List<SubjectsBean> subjects) { this.subjects = subjects; } public static class SubjectsBean { /** * rating : {"max":10,"average":9.6,"starsmin":0} * genres : ["犯罪","剧情"]":"50"," * title : 肖申克的救赎 * casts : [{"alt":"https://movie.douban.com/celebrity/1054521/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/17525.jpg","large":"https://img3.doubanio.com/img/celebrity/large/17525.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/17525.jpg"},"name":"蒂姆·罗宾斯","id":"1054521"},{"alt":"https://movie.douban.com/celebrity/1054534/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/34642.jpg","large":"https://img3.doubanio.com/img/celebrity/large/34642.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/34642.jpg"},"name":"摩根·弗里曼","id":"1054534"},{"alt":"https://movie.douban.com/celebrity/1041179/","avatars":{"small":"https://img1.doubanio.com/img/celebrity/small/5837.jpg","large":"https://img1.doubanio.com/img/celebrity/large/5837.jpg","medium":"https://img1.doubanio.com/img/celebrity/medium/5837.jpg"},"name":"鲍勃·冈顿","id":"1041179"}] * collect_count : 1036030 * original_title : The Shawshank Redemption * subtype : movie * directors : [{"alt":"https://movie.douban.com/celebrity/1047973/","avatars":{"small":"https://img3.doubanio.com/img/celebrity/small/230.jpg","large":"https://img3.doubanio.com/img/celebrity/large/230.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/230.jpg"},"name":"弗兰克·德拉邦特","id":"1047973"}] * year : 1994 * images : {"small":"https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p480747492.jpg","large":"https://img3.doubanio.com/view/movie_poster_cover/lpst/public/p480747492.jpg","medium":"https://img3.doubanio.com/view/movie_poster_cover/spst/public/p480747492.jpg"} * alt : https://movie.douban.com/subject/1292052/ * id : 1292052 */ private RatingBean rating; private String title; private int collect_count; private String original_title; private String subtype; private String year; private ImagesBean images; private String alt; private String id; private List<String> genres; private List<CastsBean> casts; private List<DirectorsBean> directors; public RatingBean getRating() { return rating; } public void setRating(RatingBean rating) { this.rating = rating; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public int getCollect_count() { return collect_count; } public void setCollect_count(int collect_count) { this.collect_count = collect_count; } public String getOriginal_title() { return original_title; } public void setOriginal_title(String original_title) { this.original_title = original_title; } public String getSubtype() { return subtype; } public void setSubtype(String subtype) { this.subtype = subtype; } public String getYear() { return year; } public void setYear(String year) { this.year = year; } public ImagesBean getImages() { return images; } public void setImages(ImagesBean images) { this.images = images; } public String getAlt() { return alt; } public void setAlt(String alt) { this.alt = alt; } public String getId() { return id; } public void setId(String id) { this.id = id; } public List<String> getGenres() { return genres; } public void setGenres(List<String> genres) { this.genres = genres; } public List<CastsBean> getCasts() { return casts; } public void setCasts(List<CastsBean> casts) { this.casts = casts; } public List<DirectorsBean> getDirectors() { return directors; } public void setDirectors(List<DirectorsBean> directors) { this.directors = directors; } public static class RatingBean { /** * max : 10 * average : 9.6 * stars : 50 * min : 0 */ private int max; private double average; private String stars; private int min; public int getMax() { return max; } public void setMax(int max) { this.max = max; } public double getAverage() { return average; } public void setAverage(double average) { this.average = average; } public String getStars() { return stars; } public void setStars(String stars) { this.stars = stars; } public int getMin() { return min; } public void setMin(int min) { this.min = min; } } public static class ImagesBean { /** * small : https://img3.doubanio.com/view/movie_poster_cover/ipst/public/p480747492.jpg * large : https://img3.doubanio.com/view/movie_poster_cover/lpst/public/p480747492.jpg * medium : https://img3.doubanio.com/view/movie_poster_cover/spst/public/p480747492.jpg */ private String small; private String large; private String medium; public String getSmall() { return small; } public void setSmall(String small) { this.small = small; } public String getLarge() { return large; } public void setLarge(String large) { this.large = large; } public String getMedium() { return medium; } public void setMedium(String medium) { this.medium = medium; } } public static class CastsBean { /** * alt : https://movie.douban.com/celebrity/1054521/ * avatars : {"small":"https://img3.doubanio.com/img/celebrity/small/17525.jpg","large":"https://img3.doubanio.com/img/celebrity/large/17525.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/17525.jpg"} * name : 蒂姆·罗宾斯 * id : 1054521 */ private String alt; private AvatarsBean avatars; private String name; private String id; public String getAlt() { return alt; } public void setAlt(String alt) { this.alt = alt; } public AvatarsBean getAvatars() { return avatars; } public void setAvatars(AvatarsBean avatars) { this.avatars = avatars; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getId() { return id; } public void setId(String id) { this.id = id; } public static class AvatarsBean { /** * small : https://img3.doubanio.com/img/celebrity/small/17525.jpg * large : https://img3.doubanio.com/img/celebrity/large/17525.jpg * medium : https://img3.doubanio.com/img/celebrity/medium/17525.jpg */ private String small; private String large; private String medium; public String getSmall() { return small; } public void setSmall(String small) { this.small = small; } public String getLarge() { return large; } public void setLarge(String large) { this.large = large; } public String getMedium() { return medium; } public void setMedium(String medium) { this.medium = medium; } } } public static class DirectorsBean { /** * alt : https://movie.douban.com/celebrity/1047973/ * avatars : {"small":"https://img3.doubanio.com/img/celebrity/small/230.jpg","large":"https://img3.doubanio.com/img/celebrity/large/230.jpg","medium":"https://img3.doubanio.com/img/celebrity/medium/230.jpg"} * name : 弗兰克·德拉邦特 * id : 1047973 */ private String alt; private AvatarsBeanX avatars; private String name; private String id; public String getAlt() { return alt; } public void setAlt(String alt) { this.alt = alt; } public AvatarsBeanX getAvatars() { return avatars; } public void setAvatars(AvatarsBeanX avatars) { this.avatars = avatars; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getId() { return id; } public void setId(String id) { this.id = id; } public static class AvatarsBeanX { /** * small : https://img3.doubanio.com/img/celebrity/small/230.jpg * large : https://img3.doubanio.com/img/celebrity/large/230.jpg * medium : https://img3.doubanio.com/img/celebrity/medium/230.jpg */ private String small; private String large; private String medium; public String getSmall() { return small; } public void setSmall(String small) { this.small = small; } public String getLarge() { return large; } public void setLarge(String large) { this.large = large; } public String getMedium() { return medium; } public void setMedium(String medium) { this.medium = medium; } } } }}- 1
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package ledon.com.retrofitdemo.adapter;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import java.util.List;import ledon.com.retrofitdemo.MovieBean;import ledon.com.retrofitdemo.R;/** * Created by Administrator on 2017/3/9. */public class MovieAdapter extends BaseAdapter { private Context context; private List<MovieBean.SubjectsBean> lists; public MovieAdapter(Context context, List<MovieBean.SubjectsBean> lists) { this.context = context; this.lists = lists; } @Override public int getCount() { System.out.println("集合大小："+lists.size()); return lists.size(); } @Override public Object getItem(int i) { return null; } @Override public long getItemId(int i) { return 0; } @Override public View getView(int i, View convertView, ViewGroup viewGroup) { ViewHolder holder; if (convertView==null){ convertView = LayoutInflater.from(context).inflate(R.layout.item, null); holder=new ViewHolder(); holder.tv_title= (TextView) convertView.findViewById(R.id.tv_title); holder.tv_name= (TextView) convertView.findViewById(R.id.tv_name); convertView.setTag(holder); }else { holder= (ViewHolder) convertView.getTag(); } //MovieBean.SubjectsBean subjectsBean = lists.get(i).getSubjects().get(i); holder.tv_title.setText(lists.get(i).getTitle());// holder.tv_name.setText(lists.get(i).getCasts().get(i).getName()); return convertView; } static class ViewHolder{ TextView tv_title; TextView tv_name; }}- 1
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package ledon.com.retrofitdemo.api;import java.util.List;import java.util.concurrent.TimeUnit;import javax.security.auth.Subject;import ledon.com.retrofitdemo.MovieBean;import okhttp3.OkHttpClient;import retrofit2.Retrofit;import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;import retrofit2.converter.gson.GsonConverterFactory;import rx.Subscriber;import rx.android.schedulers.AndroidSchedulers;import rx.functions.Func1;import rx.schedulers.Schedulers;/** * Created by Administrator on 2017/3/9. */public class HttpMethods { public static final String BASE_URL="https://api.douban.com/v2/movie/"; private static final int DEFAULT_TIMEOUT=5; private Retrofit retrofit; private MovieService movieService; //私有化构造方法 private HttpMethods(){ //手动创建一个okhttpClient并设置超时时间 OkHttpClient.Builder builder = new OkHttpClient.Builder(); builder.connectTimeout(DEFAULT_TIMEOUT, TimeUnit.SECONDS); retrofit=new Retrofit.Builder() .client(builder.build()) .addConverterFactory(GsonConverterFactory.create()) .addCallAdapterFactory(RxJavaCallAdapterFactory.create()) .baseUrl(BASE_URL) .build(); movieService = retrofit.create(MovieService.class); } //在访问httpmethods时候创建单例 private static class SingletonHolder{ private static final HttpMethods INSTANCE=new HttpMethods(); } //获取单例 public static HttpMethods getInstance(){ return SingletonHolder.INSTANCE; } public void getTopMovie(Subscriber<MovieBean>subscriber, int start, int count){ movieService.getTopMovie(start, count) .subscribeOn(Schedulers.io()) .unsubscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(subscriber); /* movieService.getTopMovie(start, count) .map(new HttpResultFunc<List<Subject>>()) .subscribeOn(Schedulers.io()) .unsubscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(subscriber);*/ } private class HttpResultFunc<T> implements Func1<HttpResult<T>,T>{ @Override public T call(HttpResult<T> httpResult) { return httpResult.getSubjects(); } }}- 1
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package ledon.com.retrofitdemo.api;import ledon.com.retrofitdemo.MovieBean;import retrofit2.Call;import retrofit2.http.GET;import retrofit2.http.Query;import rx.Observable;/** * Created by Administrator on 2017/3/9. */public interface MovieService { @GET("top250") Observable<MovieBean> getTopMovie(@Query("start")int start, @Query("count")int count);}- 1
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<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:layout_gravity="center" android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/tv_title" android:textSize="20dp" android:text="这个杀手不太冷"/> <ImageView android:layout_gravity="center" android:id="@+id/iv" android:layout_width="100dp" android:layout_height="100dp" android:src="@mipmap/ic_launcher"/><TextView android:id="@+id/tv_name" android:layout_gravity="center" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="20dp" android:text="主演：呵呵哈哈哈"/></LinearLayout>阅读全文
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