fresco加载图片+EventBus Activity之间跳转传值+GreenDAo数据库+retrofit请求数据+recyclerview展示数据+ButterKnife找控件

 classpath 'org.greenrobot:greendao-gradle-plugin:3.2.2'

 compile 'org.greenrobot:greendao:3.2.2'
    compile 'com.squareup.retrofit2:retrofit:2.3.0'
    compile 'com.squareup.retrofit2:converter-gson:2.3.0'
    compile 'com.facebook.fresco:fresco:1.5.0'
    compile 'com.jakewharton:butterknife:8.8.1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
    compile 'org.greenrobot:eventbus:3.0.0'
    compile 'com.android.support:recyclerview-v7:26.1.0'

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

greendao {
    schemaVersion 1
    daoPackage 'com.afa.tourism.greendao.gen'
    targetGenDir 'src/main/java'
}

build.gradel添加头部:

apply plugin: 'org.greenrobot.greendao'


添加到依赖上面

greendao {
    schemaVersion 1
    daoPackage 'com.afa.tourism.greendao.gen'
    targetGenDir 'src/main/java'
}

activity_main布局

IApplication类配置

package com.example.administrator.myapplication;

import android.app.Application;

import com.afa.tourism.greendao.gen.DaoMaster;
import com.afa.tourism.greendao.gen.DaoSession;
import com.facebook.drawee.backends.pipeline.Fresco;

import org.greenrobot.greendao.database.Database;

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

/**
 * Created by Administrator on 2017/12/1.
 */
//http://api.tianapi.com/wxnew/?key=18e883dd6b316eb1d97fd86338abbf06&num=10
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://api.tianapi.com")
                .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();
    }
}

IGetDataBase接口

package com.example.administrator.myapplication;

import com.example.administrator.myapplication.bean.Bean;

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

/**
 * Created by Administrator on 2017/12/1.
 */
//http://api.tianapi.com/wxnew/?key=18e883dd6b316eb1d97fd86338abbf06&num=10
public interface IGetDataBase {
    @GET("/wxnew/")
    Call get(@Query("key") String key,@Query("num") int num);
    /*@POST("/wxnew/")
    Call post(@Field("key") String key, int num);*/
}

Model层

MainCallBack接口

package com.example.administrator.myapplication.model;

import com.example.administrator.myapplication.bean.Bean;

/**
 * Created by Administrator on 2017/12/1.
 */

public interface MainCallBack {
    public void success(Bean bean);
    public void fail(Exception e);
}

MyModel类

package com.example.administrator.myapplication.model;

import com.example.administrator.myapplication.IApplication;
import com.example.administrator.myapplication.bean.Bean;

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

/**
 * Created by Administrator on 2017/12/1.
 */
//http://api.tianapi.com/wxnew/?key=18e883dd6b316eb1d97fd86338abbf06&num=10
public class MainModel {
    public void getData(final MainCallBack callBack){
        Call call= IApplication.iGetDataBase.get("18e883dd6b316eb1d97fd86338abbf06",10);
        call.enqueue(new Callback() {
            @Override
            public void onResponse(Call call, Response response) {
                Bean bean = response.body();
                callBack.success(bean);
                IApplication.session.getNewslistBeanDao().insertInTx(bean.getNewslist());
            }

            @Override
            public void onFailure(Call call, Throwable t) {
                callBack.fail(new Exception(""));

            }
        });
    }
}

View层

IMainInterface接口

package com.example.administrator.myapplication.view;

import com.example.administrator.myapplication.bean.Bean;

/**
 * Created by Administrator on 2017/12/1.
 */

public interface IMaininterface {
    public void success(Bean bean);
    public void fail(Exception e);
}

Presenterceng

MyPresenter类

package com.example.administrator.myapplication.presenter;

import com.example.administrator.myapplication.bean.Bean;
import com.example.administrator.myapplication.model.MainCallBack;
import com.example.administrator.myapplication.model.MainModel;
import com.example.administrator.myapplication.view.IMaininterface;

/**
 * Created by Administrator on 2017/12/1.
 */

public class MainPresenter {
    private IMaininterface iMaininterface;
    private MainModel mainModel;
    public MainPresenter(IMaininterface iMaininterface){
        this.iMaininterface=iMaininterface;
        this.mainModel=new MainModel();
    }
    public void get(){
        mainModel.getData(new MainCallBack() {
            @Override
            public void success(Bean bean) {
                 if(iMaininterface!=null){
                     iMaininterface.success(bean);
                 }
            }

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

            }
        });
    }

}

MainActivity

package com.example.administrator.myapplication;

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

import com.example.administrator.myapplication.bean.Bean;
import com.example.administrator.myapplication.bean.NewslistBean;
import com.example.administrator.myapplication.presenter.MainPresenter;
import com.example.administrator.myapplication.view.IMaininterface;

import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;

public class MainActivity extends AppCompatActivity implements IMaininterface{


    @BindView(R.id.recyclerview)
    RecyclerView recyclerview;
    private MyAdapter adapter;
    private MainPresenter presenter;

    @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);
        recyclerview.setLayoutManager(manager);
        adapter = new MyAdapter(this);
        recyclerview.setAdapter(adapter);
        List newslistBeans = IApplication.session.getNewslistBeanDao().loadAll();
        for (NewslistBean bean:newslistBeans){
            Log.i("=========",bean.toString());
        }

 //判断网络
        if(!isConn(getApplicationContext())){
            ConnectionUtil.setNetworkMethod(MainActivity.this);
        }

 } @Override public void success(Bean bean) { adapter.add(bean); } @Override public void fail(Exception e) { }

//设置网络判断
    public static boolean isConn(Context context){
        boolean bisConnFlag=false;
        ConnectivityManager conManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo network = conManager.getActiveNetworkInfo();
        if(network!=null){
            bisConnFlag=conManager.getActiveNetworkInfo().isAvailable();
        }
        return bisConnFlag;
    }

 }

MyAdapter适配器

package com.example.administrator.myapplication;

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

import com.example.administrator.myapplication.bean.Bean;
import com.example.administrator.myapplication.bean.EventBean;
import com.example.administrator.myapplication.bean.NewslistBean;
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 Administrator on 2017/12/1.
 */

class MyAdapter extends RecyclerView.Adapter {
    Context context;
    List list;


    public MyAdapter(Context context) {
        this.context = context;

    }

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


    @Override
    public IViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.adapter_item, null);

        return new IViewHolder(view);
    }

    @Override
    public void onBindViewHolder(IViewHolder holder, final int position) {
         holder.simpledraweeview.setImageURI(list.get(position).getPicUrl());
         holder.title.setText(list.get(position).getTitle());
         holder.title.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 EventBus.getDefault().postSticky(new EventBean(list.get(position).getPicUrl(),list.get(position).getTitle()));
                 context.startActivity(new Intent(context,Main2Activity.class));
             }
         });
    }


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

    public class IViewHolder extends RecyclerView.ViewHolder {
        @BindView(R.id.simpledraweeview)
        SimpleDraweeView simpledraweeview;
        @BindView(R.id.title)
        TextView title;
        public IViewHolder(View itemView) {
            super(itemView);
            ButterKnife.bind(this,itemView);

        }
    }
}

Main2Activity类

package com.example.administrator.myapplication;

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

import com.example.administrator.myapplication.bean.EventBean;
import com.facebook.drawee.view.SimpleDraweeView;

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

import butterknife.BindView;
import butterknife.ButterKnife;

public class Main2Activity extends Activity {

    @BindView(R.id.simpledraweeview1)
    SimpleDraweeView simpledraweeview1;
    @BindView(R.id.title1)
    TextView title1;
    private String url;
    private String title;

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



        EventBus.getDefault().register(this);
        title1.setText(title);
        simpledraweeview1.setImageURI(url);
    }
    @Subscribe(sticky = true)
    public void event(EventBean eventBean){
        url = eventBean.getUrl();
        title = eventBean.getTitle();


        Toast.makeText(this, " "+eventBean.getUrl()+"  "+eventBean.getTitle(), Toast.LENGTH_SHORT).show();
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        EventBus.getDefault().unregister(this);
    }
}

ConnectionUtil工具类判断网络

package com.example.administrator.monilianxi;

import android.app.AlertDialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;

/**
 * Created by Administrator on 2017/12/3.
 */

public class ConnectionUtil {
    /*
    * 打开设置网络界面
    * */
    //判断网络
    public static void setNetworkMethod(final Context context){
        //提示对话框
        AlertDialog.Builder builder=new AlertDialog.Builder(context);
        builder.setTitle("网络设置提示").setMessage("网络连接不可用,是否进行设置?").setPositiveButton("设置", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub
                Intent intent=null;
                //判断手机系统的版本  即API大于10 就是3.0或以上版本
                if(android.os.Build.VERSION.SDK_INT>10){
                    intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);
                }else{
                    intent = new Intent();
                    ComponentName component = new ComponentName("com.android.settings","com.android.settings.WirelessSettings");
                    intent.setComponent(component);
                    intent.setAction("android.intent.action.VIEW");
                }
                context.startActivity(intent);
            }
        }).setNegativeButton("取消", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub
                dialog.dismiss();
            }
        }).show();
    }
}