Retrofit2 + RxJava + Okhttp + RecyclerView用MVP架构展示数据

写代码思路流程：

//1.权限和依赖//2.布局文件//3.生成实体bean类//4.封装工具类 Retrofit + RxJava + OkHttp//5.搭建MVP架构//6.创建适配器//7.在Activity或者Fragment中进行加载布局管理器和绑定适配器

效果图：

a.添加联网权限：

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

b.依赖：（带libs的依赖需要自己导入jar包，也可以自己在网上搜直接添加）
compile 'com.squareup.okhttp3:okhttp:3.9.0'compile 'io.reactivex:rxjava:1.0.14'compile 'io.reactivex:rxandroid:1.0.1'compile 'com.squareup.retrofit2:retrofit:2.0.2'                  //Retrofit2库文件compile 'com.squareup.retrofit2:converter-gson:2.0.2'           //支持Gson解析compile 'com.squareup.retrofit2:adapter-rxjava:2.1.0'           //支持RxJavacompile 'com.jcodecraeer:xrecyclerview:1.3.2'compile 'com.github.bumptech.glide:glide:3.7.0'

布局文件：

activity_main.xml

<?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout 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="com.ccm.mvpretrofitrxjava.activity.MainActivity">    <com.jcodecraeer.xrecyclerview.XRecyclerView        android:id="@+id/xrv"        android:layout_width="match_parent"        android:layout_height="match_parent"></com.jcodecraeer.xrecyclerview.XRecyclerView></android.support.constraint.ConstraintLayout>

recy_item

<?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="50dp"    android:orientation="horizontal">    <ImageView        android:id="@+id/iv_item"        android:layout_width="50dp"        android:layout_height="match_parent" />    <TextView        android:id="@+id/tv_item"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:text="我是文本"        android:textSize="20sp"/></LinearLayout>

生成实体bean类：

public class Bean {    private String msg;    private RetEntity ret;    private String code;    public String getMsg() {        return msg;    }    public void setMsg(String msg) {        this.msg = msg;    }    public RetEntity getRet() {        return ret;    }    public void setRet(RetEntity ret) {        this.ret = ret;    }    public String getCode() {        return code;    }    public void setCode(String code) {        this.code = code;    }    public static class RetEntity {                private AdvEntity adv;        private int pnum;        private int totalRecords;        private int records;        private int totalPnum;        private List<?> bannerList;        private List<ListEntity> list;        public AdvEntity getAdv() {            return adv;        }        public void setAdv(AdvEntity adv) {            this.adv = adv;        }        public int getPnum() {            return pnum;        }        public void setPnum(int pnum) {            this.pnum = pnum;        }        public int getTotalRecords() {            return totalRecords;        }        public void setTotalRecords(int totalRecords) {            this.totalRecords = totalRecords;        }        public int getRecords() {            return records;        }        public void setRecords(int records) {            this.records = records;        }        public int getTotalPnum() {            return totalPnum;        }        public void setTotalPnum(int totalPnum) {            this.totalPnum = totalPnum;        }        public List<?> getBannerList() {            return bannerList;        }        public void setBannerList(List<?> bannerList) {            this.bannerList = bannerList;        }        public List<ListEntity> getList() {            return list;        }        public void setList(List<ListEntity> list) {            this.list = list;        }        public static class AdvEntity {                      private String imgURL;            private String dataId;            private String htmlURL;            private String shareURL;            private String title;            public String getImgURL() {                return imgURL;            }            public void setImgURL(String imgURL) {                this.imgURL = imgURL;            }            public String getDataId() {                return dataId;            }            public void setDataId(String dataId) {                this.dataId = dataId;            }            public String getHtmlURL() {                return htmlURL;            }            public void setHtmlURL(String htmlURL) {                this.htmlURL = htmlURL;            }            public String getShareURL() {                return shareURL;            }            public void setShareURL(String shareURL) {                this.shareURL = shareURL;            }            public String getTitle() {                return title;            }            public void setTitle(String title) {                this.title = title;            }        }        public static class ListEntity {                        private int airTime;            private String duration;            private String loadtype;            private int score;            private String angleIcon;            private String dataId;            private String description;            private String loadURL;            private String shareURL;            private String pic;            private String title;            private String roomId;            public int getAirTime() {                return airTime;            }            public void setAirTime(int airTime) {                this.airTime = airTime;            }            public String getDuration() {                return duration;            }            public void setDuration(String duration) {                this.duration = duration;            }            public String getLoadtype() {                return loadtype;            }            public void setLoadtype(String loadtype) {                this.loadtype = loadtype;            }            public int getScore() {                return score;            }            public void setScore(int score) {                this.score = score;            }            public String getAngleIcon() {                return angleIcon;            }            public void setAngleIcon(String angleIcon) {                this.angleIcon = angleIcon;            }            public String getDataId() {                return dataId;            }            public void setDataId(String dataId) {                this.dataId = dataId;            }            public String getDescription() {                return description;            }            public void setDescription(String description) {                this.description = description;            }            public String getLoadURL() {                return loadURL;            }            public void setLoadURL(String loadURL) {                this.loadURL = loadURL;            }            public String getShareURL() {                return shareURL;            }            public void setShareURL(String shareURL) {                this.shareURL = shareURL;            }            public String getPic() {                return pic;            }            public void setPic(String pic) {                this.pic = pic;            }            public String getTitle() {                return title;            }            public void setTitle(String title) {                this.title = title;            }            public String getRoomId() {                return roomId;            }            public void setRoomId(String roomId) {                this.roomId = roomId;            }        }    }}

封装工具类：

RequestApi接口

public interface RequestApi {    public static final String BASE_URL = "http://api.svipmovie.com/front/";    //get和RxJava    @GET("columns/getVideoList.do?catalogId=402834815584e463015584e539330016&pnum=2")    Observable<Bean> getData();    @Streaming    @POST("{fileName}")    Call<ResponseBody> downloadFile(@Path("fileName") String fileName, @Header("Range") String range);    @Streaming    @POST("{fileName}")    Call<ResponseBody> getFileLenght(@Path("fileName") String fileName);}

RetrofitUtils类：

public class RetrofitUtils {    //支持RxJava    public static RequestApi getNetDatas(){        OkHttpClient client = new OkHttpClient.Builder()                .connectTimeout(5, TimeUnit.SECONDS)                .readTimeout(5, TimeUnit.SECONDS)//                .addNetworkInterceptor(new MyInterceptro())                .build();        Retrofit retrofit = new Retrofit.Builder()                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())                .addConverterFactory(GsonConverterFactory.create())                .client(client)                .baseUrl(RequestApi.BASE_URL)                .build();        RequestApi api = retrofit.create(RequestApi.class);        return api;    }    public static RequestApi download(){        OkHttpClient client = new OkHttpClient.Builder()                .connectTimeout(5, TimeUnit.SECONDS)                .readTimeout(5, TimeUnit.SECONDS)                //.addNetworkInterceptor(new MyInterceptro())                .build();        Retrofit retrofit = new Retrofit.Builder()                .client(client)                .baseUrl("http://10.0.2.2:8080/aaa/")                .build();        RequestApi api = retrofit.create(RequestApi.class);        return api;    }}

view层：

public interface IRecyView {    void showRecy(Bean bean);}

model层：

IRecyModel接口

public interface IRecyModel {    void recy(Observer<Bean> observer);}

RecyModel是IRecyView的实现类
public class RecyModel implements IRecyModel {    @Override    public void recy(Observer<Bean> observer) {        //OkHttpUtils.getInstance().doGet("http://api.svipmovie.com/front/columns/getVideoList.do?catalogId=402834815584e463015584e539330016", callback);        RetrofitUtils.getNetDatas().getData()        .subscribeOn(Schedulers.io())   //定义被观察者在子线程执行        .observeOn(AndroidSchedulers.mainThread())  //定义观察者在主线程执行        .subscribe(observer);    }}


presenter层：

public class RecyPresenter {    private IRecyView view;    private IRecyModel model;    public RecyPresenter(IRecyView view) {        this.view = view;        model = new RecyModel();    }    public void showRecy(){        model.recy(new Observer<Bean>() {            @Override            public void onCompleted() {                Log.i("我用retrofit+RxJava好使啦", "onCompleted: ");            }            @Override            public void onError(Throwable e) {                Log.i("我用retrofit+RxJava好使啦", "onError: ");            }            @Override            public void onNext(Bean bean) {                Log.i("我用retrofit+RxJava好使啦", "onNext: ");                view.showRecy(bean);            }        });    }    //解绑    public void onDestory(){        view = null;    }}

适配器：

public class MyRecyAdapter extends RecyclerView.Adapter<MyRecyAdapter.MyViewHolder>{    private Context context;    private Bean bean;    public MyRecyAdapter(Context context, Bean bean) {        this.context = context;        this.bean = bean;    }    @Override    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view = LayoutInflater.from(context).inflate(R.layout.recy_item, parent, false);        MyViewHolder holder = new MyViewHolder(view);        return holder;    }    @Override    public void onBindViewHolder(MyViewHolder holder, int position) {        Glide.with(context).load(bean.getRet().getList().get(position).getPic()).into(holder.iv_item);        holder.tv_item.setText(bean.getRet().getList().get(position).getDescription());    }    @Override    public int getItemCount() {        return bean.getRet().getList().size();    }    static class MyViewHolder extends RecyclerView.ViewHolder{        ImageView iv_item;        TextView tv_item;        public MyViewHolder(View itemView) {            super(itemView);            iv_item = itemView.findViewById(R.id.iv_item);            tv_item = itemView.findViewById(R.id.tv_item);        }    }}

MainActivity：

//1.权限和依赖//2.布局文件//3.生成实体bean类//4.封装工具类 Retrofit + RxJava + OkHttp//5.搭建MVP架构//6.创建适配器//7.在Activity或者Fragment中进行加载布局管理器和绑定适配器public class MainActivity extends AppCompatActivity implements IRecyView{    private XRecyclerView xrv;    private RecyPresenter presenter;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();        presenter = new RecyPresenter(this);        presenter.showRecy();    }    private void initView() {        xrv = (XRecyclerView) findViewById(R.id.xrv);        LinearLayoutManager manager = new LinearLayoutManager(this);        manager.setOrientation(LinearLayoutManager.VERTICAL);        xrv.setLayoutManager(manager);        //下面是加载更多的方法    }    @Override    public void showRecy(Bean bean) {        MyRecyAdapter myRecyAdapter = new MyRecyAdapter(this, bean);        xrv.setAdapter(myRecyAdapter);    }}