使用Retrofit和Rxjava实现列表刷新

其他 2018-05-26 01:34:41 阅读次数: 1

使用的依赖和权限

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<!--<uses-permission android:name="android.permission.MOUNT_FORMAT_FILESYSTEMS"/>-->
<uses-permission android:name="android.permission.INTERNET"/>
implementation rootProject.ext.dependencies["appcompat-v7"]
implementation rootProject.ext.dependencies["constraint-layout"]
implementation rootProject.ext.dependencies["retrofit2"]
implementation rootProject.ext.dependencies["converter-gson"]
implementation rootProject.ext.dependencies["rxjava2"]
implementation rootProject.ext.dependencies["rxjava2:rxandroid"]
implementation rootProject.ext.dependencies["dagger"]
annotationProcessor rootProject.ext.dependencies["dagger-compiler"]
implementation rootProject.ext.dependencies["adapter-rxjava"]
implementation 'com.facebook.fresco:fresco:0.12.0'
// 支持 GIF 动图，需要添加
implementation 'com.facebook.fresco:animated-gif:0.12.0'
implementation 'com.sunfusheng:marqueeview:1.3.3'
implementation 'com.android.support:support-v4:27.1.1'
implementation 'com.jcodecraeer:xrecyclerview:1.3.2'
implementation 'com.android.support:recyclerview-v7:27.1.1'
implementation 'com.android.support:design:27.1.1'

build.gradle

apply from: "config.gradle"
buildscript {}

config.gradle

ext {
    android = [
            compileSdkVersion: 27,
            applicationId    : "com.example.ruiyonghui.combwieruiyonghui0512",
            minSdkVersion    : 15,
            targetSdkVersion : 27,
            versionCode      : 1,
            versionName      : "1.0"
    ]

    dependencies = [
            "appcompat-v7"     : "com.android.support:appcompat-v7:27.1.1",
            "constraint-layout": "com.android.support.constraint:constraint-layout:1.1.0",
            "retrofit2"        : "com.squareup.retrofit2:retrofit:2.4.0",
            "converter-gson"   : "com.squareup.retrofit2:converter-gson:2.4.0",
            "adapter-rxjava"  :  "com.squareup.retrofit2:adapter-rxjava2:2.4.0",
            "rxjava2"          : "io.reactivex.rxjava2:rxjava:2.1.13",
            "rxjava2:rxandroid": "io.reactivex.rxjava2:rxandroid:2.0.2",
            "dagger"           : "com.google.dagger:dagger:2.8",
            "dagger-compiler" : "com.google.dagger:dagger-compiler:2.7"

    ]
}

activtiy_piece

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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=".PieceActivity">

    <com.jcodecraeer.xrecyclerview.XRecyclerView
        android:id="@+id/recycler_duanzi"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    </com.jcodecraeer.xrecyclerview.XRecyclerView>

</RelativeLayout>

item_duanzi

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="15dp"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <com.facebook.drawee.view.SimpleDraweeView
        android:id="@+id/sdv_yuan"
        android:layout_width="60dp"
        android:layout_height="60dp"
        android:layout_marginTop="15dp"
        app:actualImageScaleType="centerCrop"
        app:roundAsCircle="true"/>
    <TextView
        android:id="@+id/text_title"
        android:text="123"
        android:textColor="#ff0000"
        android:layout_marginTop="25dp"
        android:layout_toRightOf="@id/sdv_yuan"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <TextView
        android:id="@+id/text_time"
        android:text="123"
        android:textColor="#3333"
        android:layout_toRightOf="@id/sdv_yuan"
        android:layout_below="@id/text_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/text_cont"
        android:layout_below="@id/sdv_yuan"
        android:layout_width="match_parent"
        android:maxLines="6"
        android:layout_marginTop="15dp"
        android:layout_marginBottom="15dp"
        android:layout_height="wrap_content"
        android:text="111"/>
    <TextView
        android:layout_below="@id/text_cont"
        android:layout_width="match_parent"
        android:layout_height="0.5dp"
        android:background="#3333"/>

</RelativeLayout>

PieceActivity

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import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.widget.Toast;

import com.bwie.test.adapter.MyDuanZiAdapter;
import com.bwie.test.base.BaseActivity;
import com.bwie.test.bean.DuanZiBean;
import com.bwie.test.component.DaggerHttpComponent;
import com.bwie.test.module.HttpModule;
import com.bwie.test.mypiece_demo.contract.DuanziContract;
import com.bwie.test.mypiece_demo.presenter.DuanziPresenter;
import com.jcodecraeer.xrecyclerview.ProgressStyle;
import com.jcodecraeer.xrecyclerview.XRecyclerView;

import java.util.ArrayList;
import java.util.List;

public class PieceActivity extends BaseActivity<DuanziPresenter> implements DuanziContract.View{
    private int num = 1;
    private XRecyclerView mRecyclerDuanzi;
    boolean falg = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //隐藏原有标题
        getSupportActionBar().hide();
        initView();
        mRecyclerDuanzi.setPullRefreshEnabled(true);
        mRecyclerDuanzi.setLoadingMoreEnabled(true);
        mRecyclerDuanzi.setRefreshProgressStyle(ProgressStyle.BallSpinFadeLoader);
        mRecyclerDuanzi.setLoadingMoreProgressStyle(ProgressStyle.Pacman);
    }

    @Override
    public void getJokesSuccess(DuanZiBean duanZiBean) {
        final List<DuanZiBean.DataBean> duanZiBeans = new ArrayList<>();

        List<DuanZiBean.DataBean> data = duanZiBean.getData();
        duanZiBeans.addAll(data);
        mRecyclerDuanzi.setLayoutManager(new LinearLayoutManager(PieceActivity.this, 
                                     LinearLayoutManager.VERTICAL,false));
        MyDuanZiAdapter adapter = new MyDuanZiAdapter(PieceActivity.this,duanZiBeans);
        mRecyclerDuanzi.setAdapter(adapter);

        mRecyclerDuanzi.setLoadingListener(new XRecyclerView.LoadingListener() {
            @Override
            public void onRefresh() {
                mPresenter.getJokes(num+"");
                mRecyclerDuanzi.refreshComplete();
                duanZiBeans.clear();
                Toast.makeText(PieceActivity.this, "刷新成功", Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onLoadMore() {
                num++;
                mPresenter.getJokes(num+"");
                mRecyclerDuanzi.refreshComplete();
                Toast.makeText(PieceActivity.this, "加载成功", Toast.LENGTH_SHORT).show();
            }
        });
    }

    @Override
    public int getContentLayout() {
        return R.layout.activity_piece;
    }

    @Override
    public void inject() {
        DaggerHttpComponent.builder()
                .httpModule(new HttpModule())
                .build()
                .inject(this);
    }

    private void initView() {
        mRecyclerDuanzi = (XRecyclerView) findViewById(R.id.recycler_duanzi);
        //请求数据
        initData();
    }

    private void initData() {
        mPresenter.getJokes(String.valueOf(101));
    }
}

app文件夹下MyApp

import android.app.Application;
import com.facebook.drawee.backends.pipeline.Fresco;

public class MyApp extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        //初始化Fresco
        Fresco.initialize(this);
    }
}

contract文件夹下DuanziContract

import com.bwie.test.base.BaseContract;
import com.bwie.test.bean.DuanZiBean;

public class DuanziContract {
    public interface View extends BaseContract.BaseView {
        void getJokesSuccess(DuanZiBean duanZiBean);
    }

    public interface Presenter extends BaseContract.BasePresenter<View> {
        void getJokes(String page);
    }
}

presenter文件夹下DuanziPresenter

import com.bwie.test.base.BasePresenter;
import com.bwie.test.bean.DuanZiBean;
import com.bwie.test.mypiece_demo.contract.DuanziContract;
import com.bwie.test.utils.JokesApi;

import javax.inject.Inject;

import io.reactivex.Observer;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.disposables.Disposable;
import io.reactivex.schedulers.Schedulers;

public class DuanziPresenter extends BasePresenter<DuanziContract.View> implements 
                                             DuanziContract.Presenter{
    JokesApi jokesApi;

    @Inject
    public DuanziPresenter(JokesApi jokesApi) {
        this.jokesApi = jokesApi;
    }

    @Override
    public void getJokes(String page) {

        jokesApi.getJokes(page)
                .observeOn(AndroidSchedulers.mainThread())
                .subscribeOn(Schedulers.io())
                .subscribe(new Observer<DuanZiBean>() {
                    @Override
                    public void onSubscribe(Disposable d) {

                    }

                    @Override
                    public void onNext(DuanZiBean duanZiBean) {
                        mView.getJokesSuccess(duanZiBean);

                    }

                    @Override
                    public void onError(Throwable e) {

                    }

                    @Override
                    public void onComplete() {

                    }
                });
    }
}

adapter文件夹下MyDuanZiAdapter

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.bwie.test.bean.DuanZiBean;
import com.bwie.test.mypiece_demo.R;
import com.facebook.drawee.view.SimpleDraweeView;
import java.util.List;

public class MyDuanZiAdapter extends RecyclerView.Adapter<MyDuanZiAdapter.MyDuanZiHolder> {
    private final Context context;
    private final List<DuanZiBean.DataBean> duanZiBeans;

    public MyDuanZiAdapter(Context context, List<DuanZiBean.DataBean> duanZiBeans) {
        this.context = context;
        this.duanZiBeans = duanZiBeans;
    }

    @Override
    public MyDuanZiHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.item_duanzi, parent, false);
        MyDuanZiHolder holder = new MyDuanZiHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(MyDuanZiHolder holder, int position) {
        DuanZiBean.DataBean bean = duanZiBeans.get(position);
        holder.sdv_yuan.setImageURI(bean.getUser().getIcon());
        holder.text_title.setText(bean.getUser().getNickname());
        holder.text_time.setText(bean.getCreateTime());
        holder.text_cont.setText(bean.getContent());
    }

    @Override
    public int getItemCount() {
        return duanZiBeans.size();
    }

    class MyDuanZiHolder extends RecyclerView.ViewHolder {
        public SimpleDraweeView sdv_yuan;
        public TextView text_title;
        public TextView text_time;
        public TextView text_cont;
        public MyDuanZiHolder(View itemView) {
            super(itemView);
            sdv_yuan = itemView.findViewById(R.id.sdv_yuan);
            text_title = itemView.findViewById(R.id.text_title);
            text_time = itemView.findViewById(R.id.text_time);
            text_cont = itemView.findViewById(R.id.text_cont);
        }
    }
}

base文件夹下BaseActivity

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;

import com.bwie.test.inter.IBase;
import com.bwie.test.mypiece_demo.R;
import javax.inject.Inject;

public abstract class BaseActivity<T extends BaseContract.BasePresenter> extends AppCompatActivity 
                                     implements IBase, BaseContract.BaseView{
    @Inject
    protected T mPresenter;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(getContentLayout());
        inject();
        //绑定
        mPresenter.attchView(this);
    }

    @Override
    public void showLoading() {

    }

    @Override
    public void dismissLoading() {

    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        //解绑
        mPresenter.detachView();
    }
}

BaseContract

public interface BaseContract {
    //抽取所有Presenter共性，比如绑定，解绑
    interface BasePresenter<T extends BaseView> {
        void attchView(T view);
        void detachView();
    }

    //抽取所有View的共性，比如显示进度条和关闭进度
    interface BaseView {
        void showLoading();
        void dismissLoading();
    }
}

BasePresenter

public class BasePresenter<T extends BaseContract.BaseView> implements BaseContract.BasePresenter<T> {
    protected T mView;

    @Override
    public void attchView(T view) {
        this.mView = view;
    }

    @Override
    public void detachView() {
        if (mView != null) {
            mView = null;
        }
    }
}

component文件夹下HttpComponent

import com.bwie.test.module.HttpModule;
import com.bwie.test.mypiece_demo.PieceActivity;
import dagger.Component;

@Component(modules = HttpModule.class)
public interface HttpComponent {
    void inject(PieceActivity pieceActivity);
}

inter文件夹下IBase

public interface IBase {
    int getContentLayout();
    void inject();
}

module文件夹下HttpModule

import com.bwie.test.utils.JokesApi;
import com.bwie.test.utils.JokesService;
import com.bwie.test.utils.MyInterceptor;
import java.util.concurrent.TimeUnit;

import dagger.Module;
import dagger.Provides;
import okhttp3.OkHttpClient;
import retrofit2.Retrofit;
import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
import retrofit2.converter.gson.GsonConverterFactory;

@Module
public class HttpModule {
    @Provides
    OkHttpClient.Builder provideOkHttpClientBuilder() {
        return new OkHttpClient.Builder()
                .connectTimeout(10, TimeUnit.SECONDS)
                .readTimeout(20, TimeUnit.SECONDS)
                .writeTimeout(20, TimeUnit.SECONDS);

    }

    @Provides
    JokesApi provideJokesApi(OkHttpClient.Builder builder) {
        builder.addInterceptor(new MyInterceptor());
        JokesService jokesService = new Retrofit.Builder()
                .baseUrl("https://www.zhaoapi.cn/")
                .addConverterFactory(GsonConverterFactory.create())
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                .client(builder.build())
                .build()
                .create(JokesService.class);

        return JokesApi.getJokesApi(jokesService);
    }
}

utils文件夹下Api

public interface Api {
    String DUANZI_URL = "https://www.zhaoapi.cn/";
}

JokesApi

import com.bwie.test.bean.DuanZiBean;
import io.reactivex.Observable;
import retrofit2.http.Field;
import retrofit2.http.FormUrlEncoded;
import retrofit2.http.POST;

public class JokesApi {
    private static JokesApi jokesApi;
    private JokesService jokesService;

    private JokesApi(JokesService jokesService) {
        this.jokesService = jokesService;
    }

    public static JokesApi getJokesApi(JokesService jokesService) {
        if (jokesApi == null) {
            jokesApi = new JokesApi(jokesService);
        }
        return jokesApi;
    }

    public Observable<DuanZiBean> getJokes(String page) {
        return jokesService.DuanZi(page);
    }
}

JokesService

import com.bwie.test.bean.DuanZiBean;
import io.reactivex.Observable;
import retrofit2.http.Field;
import retrofit2.http.FormUrlEncoded;
import retrofit2.http.POST;

public interface JokesService {
    @FormUrlEncoded
    @POST("quarter/getJokes")
    Observable<DuanZiBean> DuanZi(@Field("page") String page);
}

MyInterceptor

import java.io.IOException;
import okhttp3.FormBody;
import okhttp3.HttpUrl;
import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;

public class MyInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Response response;
        //区分是GET请求还是POST请求
        Request originRequest = chain.request();
        if ("GET".equals(originRequest.method())) {
            HttpUrl httpUrl = originRequest.url()
                    .newBuilder()
                    .addQueryParameter("source", "android")
                    .addQueryParameter("appVersion","101")
                    .build();
            Request request = new Request.Builder().url(httpUrl).build();
            //发送请求
            response = chain.proceed(request);
        } else {
            FormBody.Builder builder = new FormBody.Builder();

            FormBody body = (FormBody) originRequest.body();
            int size = body.size();
            for (int i = 0; i < size; i++) {
                builder.add(body.name(i), body.value(i));
            }
            builder.add("source", "android");
            builder.add("appVersion","101");
            FormBody formBody = builder.build();
            Request request = new Request.Builder()
                    .url(originRequest.url())
                    .post(formBody)
                    .build();
            response = chain.proceed(request);

        }
        return response;
    }
}

bean文件夹下DuanZiBean

import java.util.List;

public class DuanZiBean {

    private String msg;
    private String code;
    private List<DataBean> data;

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public List<DataBean> getData() {
        return data;
    }

    public void setData(List<DataBean> data) {
        this.data = data;
    }

    public static class DataBean {
        private Object commentNum;
        private String content;
        private String createTime;
        private String imgUrls;
        private int jid;
        private Object praiseNum;
        private Object shareNum;
        private int uid;
        private UserBean user;

        public Object getCommentNum() {
            return commentNum;
        }

        public void setCommentNum(Object commentNum) {
            this.commentNum = commentNum;
        }

        public String getContent() {
            return content;
        }

        public void setContent(String content) {
            this.content = content;
        }

        public String getCreateTime() {
            return createTime;
        }

        public void setCreateTime(String createTime) {
            this.createTime = createTime;
        }

        public String getImgUrls() {
            return imgUrls;
        }

        public void setImgUrls(String imgUrls) {
            this.imgUrls = imgUrls;
        }

        public int getJid() {
            return jid;
        }

        public void setJid(int jid) {
            this.jid = jid;
        }

        public Object getPraiseNum() {
            return praiseNum;
        }

        public void setPraiseNum(Object praiseNum) {
            this.praiseNum = praiseNum;
        }

        public Object getShareNum() {
            return shareNum;
        }

        public void setShareNum(Object shareNum) {
            this.shareNum = shareNum;
        }

        public int getUid() {
            return uid;
        }

        public void setUid(int uid) {
            this.uid = uid;
        }

        public UserBean getUser() {
            return user;
        }

        public void setUser(UserBean user) {
            this.user = user;
        }

        public static class UserBean {
            private Object age;
            private String fans;
            private boolean follow;
            private String icon;
            private String nickname;
            private String praiseNum;

            public Object getAge() {
                return age;
            }

            public void setAge(Object age) {
                this.age = age;
            }

            public String getFans() {
                return fans;
            }

            public void setFans(String fans) {
                this.fans = fans;
            }

            public boolean isFollow() {
                return follow;
            }

            public void setFollow(boolean follow) {
                this.follow = follow;
            }

            public String getIcon() {
                return icon;
            }

            public void setIcon(String icon) {
                this.icon = icon;
            }

            public String getNickname() {
                return nickname;
            }

            public void setNickname(String nickname) {
                this.nickname = nickname;
            }

            public String getPraiseNum() {
                return praiseNum;
            }

            public void setPraiseNum(String praiseNum) {
                this.praiseNum = praiseNum;
            }
        }
    }
}

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