复杂的MVP+refit+greendao

来源：互联网发布：suse linux安装详解编辑：程序博客网时间：2024/06/05 13:22
apply plugin: 'com.android.application'apply plugin: 'org.greenrobot.greendao' // apply pluginandroid {    compileSdkVersion 26    buildToolsVersion "26.0.2"    defaultConfig {        applicationId "com.example.refitgreendao"        minSdkVersion 15        targetSdkVersion 26        versionCode 1        versionName "1.0"        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"    }    buildTypes {        release {            minifyEnabled false            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'        }    }    greendao {        targetGenDir 'src/main/java'        daoPackage 'com.example.refitgreendao.dao'        schemaVersion 1    }}dependencies {    compile fileTree(dir: 'libs', include: ['*.jar'])    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {        exclude group: 'com.android.support', module: 'support-annotations'    })    compile 'com.android.support:appcompat-v7:26.+'    compile 'com.android.support.constraint:constraint-layout:1.0.2'    testCompile 'junit:junit:4.12'    compile 'com.squareup.retrofit2:retrofit:2.3.0'    compile 'org.greenrobot:greendao:3.2.2'    compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'    // add library    compile 'com.jakewharton:butterknife:8.0.1'    compile 'com.squareup.retrofit2:converter-gson:2.3.0'    compile 'org.greenrobot:eventbus:3.1.1'    compile 'com.facebook.fresco:fresco:1.5.0'}
以上是依赖
<?xml version="1.0" encoding="utf-8"?><LinearLayout 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"    android:orientation="vertical"    tools:context="com.example.refitgreendao.MainActivity">    <android.support.v7.widget.RecyclerView        android:layout_width="match_parent"        android:layout_height="match_parent"        android:id="@+id/recycleview"/></LinearLayout>
以上是首页的布局
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:orientation="horizontal"    android:layout_height="wrap_content">    <com.facebook.drawee.view.SimpleDraweeView        android:layout_width="100dp"        android:layout_height="100dp"        android:id="@+id/adapter_simpledraweeview"/>    <TextView        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:id="@+id/adapter_textview"/></LinearLayout>
这个是item的布局
package com.example.muhanxi.myapplication.view;


import com.example.muhanxi.myapplication.Bean;


/**
 * Created by muhanxi on 17/12/1.
 */


public interface IMainView {




    public void onSuccess(Bean bean);
    public void onFailure(Exception e);


}
以上是mvp中的v层
package com.example.muhanxi.myapplication;


import android.app.Application;


import com.example.muhanxi.myapplication.dao.DaoMaster;
import com.example.muhanxi.myapplication.dao.DaoSession;
import com.facebook.drawee.backends.pipeline.Fresco;


import org.greenrobot.greendao.database.Database;


import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;


/**
 * Created by muhanxi on 17/12/1.
 */


public class IApplication extends Application {


    public static IGetDataBase iGetDataBase;
    public static DaoSession session;


    @Override
    public void onCreate() {
        super.onCreate();




        Fresco.initialize(this);
        Retrofit retrofit =  new Retrofit.Builder().baseUrl("http://v.juhe.cn")
                .addConverterFactory(GsonConverterFactory.create())
                .build();


        iGetDataBase = retrofit.create(IGetDataBase.class);




        DaoMaster.DevOpenHelper helper = new DaoMaster.DevOpenHelper(this,"test");


        Database database =  helper.getWritableDb();




        session = new DaoMaster(database).newSession();


    }
}
package com.example.muhanxi.myapplication.model;


/**
 * Created by muhanxi on 17/12/1.
 */


public interface MainModel {
}
以上是MVP中的m层
package com.example.muhanxi.myapplication.model;


import com.example.muhanxi.myapplication.Bean;


/**
 * Created by muhanxi on 17/12/1.
 */


public interface ModelCallBack {


    public void onSuccess(Bean bean);
    public void onFailure(Exception e);


}
以上是mvp中的m
package com.example.muhanxi.myapplication.model;




import com.example.muhanxi.myapplication.Bean;
import com.example.muhanxi.myapplication.IApplication;


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


/**
 * Created by muhanxi on 17/12/1.
 */


public class MainModelImpl {




    /**
     * get 请求
     * @param callBack
     */
    public void getData(final ModelCallBack callBack){


       Call<Bean> call =  IApplication.iGetDataBase.get("88f7bbc507e3ecacfaeab2b47dd8936f");


        call.enqueue(new Callback<Bean>() {
            @Override
            public void onResponse(Call<Bean> call, Response<Bean> response) {


              Bean bean =   response.body();
                callBack.onSuccess(bean);


                // 保存到数据库
                IApplication.session.getListBeanDao().insertInTx(bean.getResult().getList());


            }


            @Override
            public void onFailure(Call<Bean> call, Throwable t) {
                callBack.onFailure(new Exception(""));
            }
        });


    }




    /**
     * post 请求
     */
    public void postData(final ModelCallBack callBack){


       Call<Bean> call =  IApplication.iGetDataBase.post("88f7bbc507e3ecacfaeab2b47dd8936f");


       call.enqueue(new Callback<Bean>() {
           @Override
           public void onResponse(Call<Bean> call, Response<Bean> response) {
               Bean bean = response.body() ;
                callBack.onSuccess(bean);


           }


           @Override
           public void onFailure(Call<Bean> call, Throwable t) {


               callBack.onFailure(new Exception(""));
           }
       });


    }










}
以上是mvp中的m
package com.example.muhanxi.myapplication.presenter;


import com.example.muhanxi.myapplication.Bean;
import com.example.muhanxi.myapplication.model.MainModelImpl;
import com.example.muhanxi.myapplication.model.ModelCallBack;
import com.example.muhanxi.myapplication.view.IMainView;


/**
 * Created by muhanxi on 17/12/1.
 */


public class MainPresenter {




    private IMainView iView ;
    private MainModelImpl mainModel ;
    public MainPresenter(IMainView view){
        this.iView = view;
        this.mainModel = new MainModelImpl();


    }




    public void get(){


        mainModel.getData(new ModelCallBack() {
            @Override
            public void onSuccess(Bean bean) {


                if(iView != null){
                    iView.onSuccess(bean);
                }
            }


            @Override
            public void onFailure(Exception e) {
                if(iView != null){
                    iView.onFailure(e);
                }
            }
        });
    }


    public void post(){
        mainModel.postData(new ModelCallBack() {
            @Override
            public void onSuccess(Bean bean) {
                if(iView != null){
                    iView.onSuccess(bean);
                }
            }


            @Override
            public void onFailure(Exception e) {
                if(iView != null){
                    iView.onFailure(e);
                }
            }
        });
    }


}
以上是mvp中的P
package com.example.muhanxi.myapplication;


import okhttp3.ResponseBody;
import retrofit2.Call;
import retrofit2.http.Field;
import retrofit2.http.FormUrlEncoded;
import retrofit2.http.GET;
import retrofit2.http.POST;
import retrofit2.http.Query;


/**
 * Created by muhanxi on 17/12/1.
 */


public interface IGetDataBase {




    /**
     * get 请求
     * @param key
     * @return
     */
    @GET("/weixin/query")
    Call<Bean> get(@Query("key") String key);


    /**
     * post 请求
     * @param key
     * @return
     */
    @FormUrlEncoded
    @POST("/weixin/query")
    Call<Bean> post(@Field("key") String key);




}
以上是请求数据的类
package com.example.muhanxi.myapplication;


import org.greenrobot.greendao.annotation.Entity;
import org.greenrobot.greendao.annotation.Id;
import org.greenrobot.greendao.annotation.Generated;


@Entity
public  class ListBean {
            /**
             * id : wechat_20171201008724
             * title : 威廉·德雷谢维奇《简·奥斯丁的教导》：改变生活的艺术
             * source : 文艺报1949
             * firstImg : http://zxpic.gtimg.com/infonew/0/wechat_pics_-60604411.jpg/640
             * mark :
             * url : http://v.juhe.cn/weixin/redirect?wid=wechat_20171201008724
             */


            @Id(autoincrement = true)
            private Long iid;
            private String id;
            private String title;
            private String source;
            private String firstImg;
            private String mark;
            private String url;


            @Generated(hash = 2061991154)
            public ListBean(Long iid, String id, String title, String source, String firstImg,
                    String mark, String url) {
                this.iid = iid;
                this.id = id;
                this.title = title;
                this.source = source;
                this.firstImg = firstImg;
                this.mark = mark;
                this.url = url;
            }


            @Generated(hash = 777734033)
            public ListBean() {
            }


            public String getId() {
                return id;
            }


            public void setId(String id) {
                this.id = id;
            }


            public String getTitle() {
                return title;
            }


            public void setTitle(String title) {
                this.title = title;
            }


            public String getSource() {
                return source;
            }


            public void setSource(String source) {
                this.source = source;
            }


            public String getFirstImg() {
                return firstImg;
            }


            public void setFirstImg(String firstImg) {
                this.firstImg = firstImg;
            }


            public String getMark() {
                return mark;
            }


            public void setMark(String mark) {
                this.mark = mark;
            }


            public String getUrl() {
                return url;
            }


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


            public Long getIid() {
                return this.iid;
            }


            public void setIid(Long iid) {
                this.iid = iid;
            }




    @Override
    public String toString() {
        return "ListBean{" +
                "iid=" + iid +
                ", id='" + id + '\'' +
                ", title='" + title + '\'' +
                ", source='" + source + '\'' +
                ", firstImg='" + firstImg + '\'' +
                ", mark='" + mark + '\'' +
                ", url='" + url + '\'' +
                '}';
    }
}
以上是生成数据库的bean
package com.example.muhanxi.myapplication.dao;


import java.util.Map;


import org.greenrobot.greendao.AbstractDao;
import org.greenrobot.greendao.AbstractDaoSession;
import org.greenrobot.greendao.database.Database;
import org.greenrobot.greendao.identityscope.IdentityScopeType;
import org.greenrobot.greendao.internal.DaoConfig;


import com.example.muhanxi.myapplication.ListBean;


import com.example.muhanxi.myapplication.dao.ListBeanDao;


// THIS CODE IS GENERATED BY greenDAO, DO NOT EDIT.


/**
 * {@inheritDoc}
 * 
 * @see org.greenrobot.greendao.AbstractDaoSession
 */
public class DaoSession extends AbstractDaoSession {


    private final DaoConfig listBeanDaoConfig;


    private final ListBeanDao listBeanDao;


    public DaoSession(Database db, IdentityScopeType type, Map<Class<? extends AbstractDao<?, ?>>, DaoConfig>
            daoConfigMap) {
        super(db);


        listBeanDaoConfig = daoConfigMap.get(ListBeanDao.class).clone();
        listBeanDaoConfig.initIdentityScope(type);


        listBeanDao = new ListBeanDao(listBeanDaoConfig, this);


        registerDao(ListBean.class, listBeanDao);
    }
    
    public void clear() {
        listBeanDaoConfig.clearIdentityScope();
    }


    public ListBeanDao getListBeanDao() {
        return listBeanDao;
    }


}
以上是生成greendao的文件之一
package com.example.muhanxi.myapplication.dao;


import android.database.Cursor;
import android.database.sqlite.SQLiteStatement;


import org.greenrobot.greendao.AbstractDao;
import org.greenrobot.greendao.Property;
import org.greenrobot.greendao.internal.DaoConfig;
import org.greenrobot.greendao.database.Database;
import org.greenrobot.greendao.database.DatabaseStatement;


import com.example.muhanxi.myapplication.ListBean;


// THIS CODE IS GENERATED BY greenDAO, DO NOT EDIT.
/** 
 * DAO for table "LIST_BEAN".
*/
public class ListBeanDao extends AbstractDao<ListBean, Long> {


    public static final String TABLENAME = "LIST_BEAN";


    /**
     * Properties of entity ListBean.<br/>
     * Can be used for QueryBuilder and for referencing column names.
     */
    public static class Properties {
        public final static Property Iid = new Property(0, Long.class, "iid", true, "_id");
        public final static Property Id = new Property(1, String.class, "id", false, "ID");
        public final static Property Title = new Property(2, String.class, "title", false, "TITLE");
        public final static Property Source = new Property(3, String.class, "source", false, "SOURCE");
        public final static Property FirstImg = new Property(4, String.class, "firstImg", false, "FIRST_IMG");
        public final static Property Mark = new Property(5, String.class, "mark", false, "MARK");
        public final static Property Url = new Property(6, String.class, "url", false, "URL");
    }




    public ListBeanDao(DaoConfig config) {
        super(config);
    }
    
    public ListBeanDao(DaoConfig config, DaoSession daoSession) {
        super(config, daoSession);
    }


    /** Creates the underlying database table. */
    public static void createTable(Database db, boolean ifNotExists) {
        String constraint = ifNotExists? "IF NOT EXISTS ": "";
        db.execSQL("CREATE TABLE " + constraint + "\"LIST_BEAN\" (" + //
                "\"_id\" INTEGER PRIMARY KEY AUTOINCREMENT ," + // 0: iid
                "\"ID\" TEXT," + // 1: id
                "\"TITLE\" TEXT," + // 2: title
                "\"SOURCE\" TEXT," + // 3: source
                "\"FIRST_IMG\" TEXT," + // 4: firstImg
                "\"MARK\" TEXT," + // 5: mark
                "\"URL\" TEXT);"); // 6: url
    }


    /** Drops the underlying database table. */
    public static void dropTable(Database db, boolean ifExists) {
        String sql = "DROP TABLE " + (ifExists ? "IF EXISTS " : "") + "\"LIST_BEAN\"";
        db.execSQL(sql);
    }


    @Override
    protected final void bindValues(DatabaseStatement stmt, ListBean entity) {
        stmt.clearBindings();
 
        Long iid = entity.getIid();
        if (iid != null) {
            stmt.bindLong(1, iid);
        }
 
        String id = entity.getId();
        if (id != null) {
            stmt.bindString(2, id);
        }
 
        String title = entity.getTitle();
        if (title != null) {
            stmt.bindString(3, title);
        }
 
        String source = entity.getSource();
        if (source != null) {
            stmt.bindString(4, source);
        }
 
        String firstImg = entity.getFirstImg();
        if (firstImg != null) {
            stmt.bindString(5, firstImg);
        }
 
        String mark = entity.getMark();
        if (mark != null) {
            stmt.bindString(6, mark);
        }
 
        String url = entity.getUrl();
        if (url != null) {
            stmt.bindString(7, url);
        }
    }


    @Override
    protected final void bindValues(SQLiteStatement stmt, ListBean entity) {
        stmt.clearBindings();
 
        Long iid = entity.getIid();
        if (iid != null) {
            stmt.bindLong(1, iid);
        }
 
        String id = entity.getId();
        if (id != null) {
            stmt.bindString(2, id);
        }
 
        String title = entity.getTitle();
        if (title != null) {
            stmt.bindString(3, title);
        }
 
        String source = entity.getSource();
        if (source != null) {
            stmt.bindString(4, source);
        }
 
        String firstImg = entity.getFirstImg();
        if (firstImg != null) {
            stmt.bindString(5, firstImg);
        }
 
        String mark = entity.getMark();
        if (mark != null) {
            stmt.bindString(6, mark);
        }
 
        String url = entity.getUrl();
        if (url != null) {
            stmt.bindString(7, url);
        }
    }


    @Override
    public Long readKey(Cursor cursor, int offset) {
        return cursor.isNull(offset + 0) ? null : cursor.getLong(offset + 0);
    }    


    @Override
    public ListBean readEntity(Cursor cursor, int offset) {
        ListBean entity = new ListBean( //
            cursor.isNull(offset + 0) ? null : cursor.getLong(offset + 0), // iid
            cursor.isNull(offset + 1) ? null : cursor.getString(offset + 1), // id
            cursor.isNull(offset + 2) ? null : cursor.getString(offset + 2), // title
            cursor.isNull(offset + 3) ? null : cursor.getString(offset + 3), // source
            cursor.isNull(offset + 4) ? null : cursor.getString(offset + 4), // firstImg
            cursor.isNull(offset + 5) ? null : cursor.getString(offset + 5), // mark
            cursor.isNull(offset + 6) ? null : cursor.getString(offset + 6) // url
        );
        return entity;
    }
     
    @Override
    public void readEntity(Cursor cursor, ListBean entity, int offset) {
        entity.setIid(cursor.isNull(offset + 0) ? null : cursor.getLong(offset + 0));
        entity.setId(cursor.isNull(offset + 1) ? null : cursor.getString(offset + 1));
        entity.setTitle(cursor.isNull(offset + 2) ? null : cursor.getString(offset + 2));
        entity.setSource(cursor.isNull(offset + 3) ? null : cursor.getString(offset + 3));
        entity.setFirstImg(cursor.isNull(offset + 4) ? null : cursor.getString(offset + 4));
        entity.setMark(cursor.isNull(offset + 5) ? null : cursor.getString(offset + 5));
        entity.setUrl(cursor.isNull(offset + 6) ? null : cursor.getString(offset + 6));
     }
    
    @Override
    protected final Long updateKeyAfterInsert(ListBean entity, long rowId) {
        entity.setIid(rowId);
        return rowId;
    }
    
    @Override
    public Long getKey(ListBean entity) {
        if(entity != null) {
            return entity.getIid();
        } else {
            return null;
        }
    }


    @Override
    public boolean hasKey(ListBean entity) {
        return entity.getIid() != null;
    }


    @Override
    protected final boolean isEntityUpdateable() {
        return true;
    }
    
}
以上是生成greendao的文件之一
package com.example.muhanxi.myapplication.dao;


import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.util.Log;


import org.greenrobot.greendao.AbstractDaoMaster;
import org.greenrobot.greendao.database.StandardDatabase;
import org.greenrobot.greendao.database.Database;
import org.greenrobot.greendao.database.DatabaseOpenHelper;
import org.greenrobot.greendao.identityscope.IdentityScopeType;




// THIS CODE IS GENERATED BY greenDAO, DO NOT EDIT.
/**
 * Master of DAO (schema version 1): knows all DAOs.
 */
public class DaoMaster extends AbstractDaoMaster {
    public static final int SCHEMA_VERSION = 1;


    /** Creates underlying database table using DAOs. */
    public static void createAllTables(Database db, boolean ifNotExists) {
        ListBeanDao.createTable(db, ifNotExists);
    }


    /** Drops underlying database table using DAOs. */
    public static void dropAllTables(Database db, boolean ifExists) {
        ListBeanDao.dropTable(db, ifExists);
    }


    /**
     * WARNING: Drops all table on Upgrade! Use only during development.
     * Convenience method using a {@link DevOpenHelper}.
     */
    public static DaoSession newDevSession(Context context, String name) {
        Database db = new DevOpenHelper(context, name).getWritableDb();
        DaoMaster daoMaster = new DaoMaster(db);
        return daoMaster.newSession();
    }


    public DaoMaster(SQLiteDatabase db) {
        this(new StandardDatabase(db));
    }


    public DaoMaster(Database db) {
        super(db, SCHEMA_VERSION);
        registerDaoClass(ListBeanDao.class);
    }


    public DaoSession newSession() {
        return new DaoSession(db, IdentityScopeType.Session, daoConfigMap);
    }


    public DaoSession newSession(IdentityScopeType type) {
        return new DaoSession(db, type, daoConfigMap);
    }


    /**
     * Calls {@link #createAllTables(Database, boolean)} in {@link #onCreate(Database)} -
     */
    public static abstract class OpenHelper extends DatabaseOpenHelper {
        public OpenHelper(Context context, String name) {
            super(context, name, SCHEMA_VERSION);
        }


        public OpenHelper(Context context, String name, CursorFactory factory) {
            super(context, name, factory, SCHEMA_VERSION);
        }


        @Override
        public void onCreate(Database db) {
            Log.i("greenDAO", "Creating tables for schema version " + SCHEMA_VERSION);
            createAllTables(db, false);
        }
    }


    /** WARNING: Drops all table on Upgrade! Use only during development. */
    public static class DevOpenHelper extends OpenHelper {
        public DevOpenHelper(Context context, String name) {
            super(context, name);
        }


        public DevOpenHelper(Context context, String name, CursorFactory factory) {
            super(context, name, factory);
        }


        @Override
        public void onUpgrade(Database db, int oldVersion, int newVersion) {
            Log.i("greenDAO", "Upgrading schema from version " + oldVersion + " to " + newVersion + " by dropping all tables");
            dropAllTables(db, true);
            onCreate(db);
        }
    }


}
以上是生成greendao的文件之一
package com.example.muhanxi.myapplication;


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


import com.example.muhanxi.myapplication.adapter.IApdater;
import com.example.muhanxi.myapplication.presenter.MainPresenter;
import com.example.muhanxi.myapplication.view.IMainView;


import java.util.List;


import butterknife.BindView;
import butterknife.ButterKnife;


public class MainActivity extends Activity implements IMainView {


    @BindView(R.id.recycleview)
    RecyclerView recycleview;
    private MainPresenter presenter;
    private IApdater adapter;


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




        presenter = new MainPresenter(this);
        presenter.get();




        LinearLayoutManager manager = new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false);


        adapter = new IApdater(this);


        recycleview.setLayoutManager(manager);
        recycleview.setAdapter(adapter);




        List<ListBean> listBeans =  IApplication.session.getListBeanDao().loadAll();


        for(ListBean bean : listBeans){
            System.out.println(bean.toString());
        }






    }


    @Override
    public void onSuccess(Bean bean) {
        adapter.addData(bean);
    }


    @Override
    public void onFailure(Exception e) {


    }
}
以上是mainActivity类
package com.example.muhanxi.myapplication.adapter;


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


import com.example.muhanxi.myapplication.Bean;
import com.example.muhanxi.myapplication.EventBean;
import com.example.muhanxi.myapplication.ListBean;
import com.example.muhanxi.myapplication.Main2Activity;
import com.example.muhanxi.myapplication.R;
import com.facebook.drawee.view.SimpleDraweeView;


import org.greenrobot.eventbus.EventBus;


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


import butterknife.BindView;
import butterknife.ButterKnife;


/**
 * Created by muhanxi on 17/12/1.
 */


public class IApdater extends RecyclerView.Adapter<IApdater.IViewHolder> {


    Context context;


    List<ListBean> list ;




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




    public void addData(Bean bean){
        if(list == null){
            list = new ArrayList<>();
        }
        list.addAll(bean.getResult().getList());
        notifyDataSetChanged();
    }


    @Override
    public IApdater.IViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {




        View view = View.inflate(context, R.layout.layout, null);


        return new IViewHolder(view);
    }


    @Override
    public void onBindViewHolder(IApdater.IViewHolder holder, final int position) {




        holder.adapterSimpledraweeview.setImageURI(list.get(position).getFirstImg());
        holder.adapterTextview.setText(list.get(position).getTitle());


        holder.adapterTextview.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {


                EventBus.getDefault().postSticky(new EventBean(list.get(position).getFirstImg(),list.get(position).getTitle()));




                context.startActivity(new Intent(context, Main2Activity.class));


            }
        });




    }


    @Override
    public int getItemCount() {
        return list == null ? 0 : list.size();
    }


    static class IViewHolder  extends RecyclerView.ViewHolder{
        @BindView(R.id.adapter_simpledraweeview)
        SimpleDraweeView adapterSimpledraweeview;
        @BindView(R.id.adapter_textview)
        TextView adapterTextview;


        IViewHolder(View view) {
            super(view);
            ButterKnife.bind(this, view);
        }
    }
}
以上是适配器的文件
package com.example.muhanxi.myapplication;


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


import org.greenrobot.eventbus.EventBus;
import org.greenrobot.eventbus.Subscribe;


public class Main2Activity extends Activity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);




        EventBus.getDefault().register(this);






    }




    @Subscribe(sticky = true)
    public void event(EventBean eventBean){


        Toast.makeText(this, ""+ eventBean.getUrl() + "  " + eventBean.getTitle(), Toast.LENGTH_SHORT).show();


    }




    @Override
    protected void onDestroy() {
        super.onDestroy();
        EventBus.getDefault().unregister(this);
    }
}
以上是跳转之后的文件
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