1. 主页面显示一个RecyclerView 列表展示 10分 ;2. 访问网络接口获取数据 10分 ;3. 通过Handler将数据发送到主线程 10分 ;4. 将获取到的数据解析成实体类型 10分 ;5. 设置适配器 将数据列表传入适配器 10分 ;6. 在构造方法中初始化Fresco并做配置完成 10分 ;7. Recyclerview 多条目展示 10分 ;8. 配置图片的显示方式为奇数行用圆角实现 10分 ;9. 在偶数行用圆形实现 10分 10. 点击条目跳到第二页面实现点击跳转 10分 11.携带数据 10分 ;12.初始化EventBus 10分 ;13.注册粘性事件 10分 ;14.传值 注销 10分 ;15. 使用ButterKnife初始化控件 10分

https://api.tianapi.com/wxnew/?key 8d6e3228d25298f13af4fc40ce6c9679 num 10

1依赖 

compile com.google.code.gson:gson:2.2.4 compile com.squareup.okhttp3:okhttp:3.10.0 compile com.facebook.fresco:fresco:0.12.0 compile org.greenrobot:eventbus:3.0.0 compile com.github.bumptech.glide:glide:3.7.0 compile com.android.support:recyclerview-v7:26.1.0 

   2 权限

 uses-permission android:name android.permission.INTERNET / !--获取网络的权限-- uses-permission android:name android.permission.ACCESS_NETWORK_STATE / !-- 挂载-- uses-permission android:name android.permission.READ_EXTERNAL_STORAGE / !-- 读取的权限-- uses-permission android:name android.permission.WRITE_EXTERNAL_STORAGE / !--写的权限-- 

3 !-- 主布局文件-- 

 ?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.dell.a1511r0411.view.MainActivity android.support.v4.widget.SwipeRefreshLayout android:id id/my_srl android:layout_width match_parent android:layout_height match_parent android.support.v7.widget.RecyclerView android:id id/my_rcv android:layout_width wrap_content android:layout_height wrap_content /android.support.v7.widget.RecyclerView /android.support.v4.widget.SwipeRefreshLayout /LinearLayout 

4.M层网络获取的数据Bean

package com.example.dell.a1511r0411.model;import java.util.List;public class DataBean { private int code; private String msg; private List NewslistBean newslist; public int getCode() { return code; } public void setCode(int code) { this.code code; } public String getMsg() { return msg; } public void setMsg(String msg) { this.msg msg; } public List NewslistBean getNewslist() { return newslist; } public void setNewslist(List NewslistBean newslist) { this.newslist newslist; } public static class NewslistBean { private String ctime; private String title; private String description; private String picUrl; private String url; public String getCtime() { return ctime; } public void setCtime(String ctime) { this.ctime ctime; } public String getTitle() { return title; } public void setTitle(String title) { this.title title; } public String getDescription() { return description; } public void setDescription(String description) { this.description description; } public String getPicUrl() { return picUrl; } public void setPicUrl(String picUrl) { this.picUrl picUrl; } public String getUrl() { return url; } public void setUrl(String url) { this.url url; } }}

5.M层的接口

package com.example.dell.a1511r0411.model;import com.example.dell.a1511r0411.presenter.DataPresenter;public interface DataModel { //请求数据的方法 void getData(String url, DataPresenter presenter);}

6.M层实现接口的类

package com.example.dell.a1511r0411.model;import com.example.dell.a1511r0411.presenter.DataPresenter;import com.example.dell.a1511r0411.util.OkhtttpUtils;import com.google.gson.Gson;import java.io.IOException;import java.util.List;import okhttp3.Call;import okhttp3.Callback;import okhttp3.Response;public class MyDataModel implements DataModel{ Override public void getData(String url, final DataPresenter presenter) { OkhtttpUtils.doGet(url, new Callback() { Override public void onFailure(Call call, IOException e) { } Override public void onResponse(Call call, Response response) throws IOException { String json response.body().string(); Gson gson new Gson(); DataBean dataBean gson.fromJson(json, DataBean.class); List DataBean.NewslistBean list dataBean.getNewslist(); presenter.Success(list); } }); }}

7.P层的接口

package com.example.dell.a1511r0411.presenter;import com.example.dell.a1511r0411.model.DataBean;import java.util.List;public interface DataPresenter { //成功与失败的方法 void Success(List DataBean.NewslistBean list); void Error();}

package com.example.dell.a1511r0411.presenter;import com.example.dell.a1511r0411.model.DataBean;import com.example.dell.a1511r0411.model.MyDataModel;import com.example.dell.a1511r0411.view.DataView;import java.util.List;public class MyDataPersenter implements DataPresenter{ //创建构造器 DataView dataView; private final MyDataModel model; public MyDataPersenter(DataView dataView) { this.dataView dataView; model new MyDataModel(); } //成功的方法 Override public void Success(List DataBean.NewslistBean list) { //调用V层接收数据的方法 dataView.toBackHome(list); } //失败的方法 Override public void Error() {} //接收url public void netWork(String url){ //调用M层请求数据的方法 model.getData(url,this); }}

9.V层的接口

package com.example.dell.a1511r0411.view;import com.example.dell.a1511r0411.model.DataBean;import java.util.List;public interface DataView { //接收数据的方法 void toBackHome(List DataBean.NewslistBean list);}

10.V层实现接口的类

package com.example.dell.a1511r0411.view;import android.content.Intent;import android.os.Handler;import android.os.Message;import android.support.v4.widget.SwipeRefreshLayout;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;import android.widget.Toast;import com.example.dell.a1511r0411.R;import com.example.dell.a1511r0411.adapter.MyAdapter;import com.example.dell.a1511r0411.model.DataBean;import com.example.dell.a1511r0411.presenter.MyDataPersenter;import com.facebook.drawee.backends.pipeline.Fresco;import com.facebook.imagepipeline.producers.SwallowResultProducer;import org.greenrobot.eventbus.EventBus;import java.util.List;public class MainActivity extends AppCompatActivity implements DataView,MyAdapter.OnClickListener { private RecyclerView my_rcv; String url https://api.tianapi.com/wxnew/?key fe7aac932e1e94f10a4f8d0f2d5fe924 num 10 ; private MyAdapter myAdapter; private List DataBean.NewslistBean list; Handler handler new Handler(){ Override public void handleMessage(Message msg) { super.handleMessage(msg); list (List DataBean.NewslistBean ) msg.obj; myAdapter new MyAdapter(MainActivity.this, list); my_rcv.setAdapter(myAdapter); //调用适配器中的点击事件 myAdapter.OnClick((MyAdapter.OnClickListener) MainActivity.this); } }; private SwipeRefreshLayout my_srl; Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Fresco.initialize(this); setContentView(R.layout.activity_main); //找到资源控件的ID my_rcv findViewById(R.id.my_rcv); my_srl findViewById(R.id.my_srl); my_srl.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { Override public void onRefresh() { //控制使它显示刷新 my_srl.setRefreshing(true); } }); //设置管理器 my_rcv.setLayoutManager(new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false)); //初始化P层 将url和本类传过去 MyDataPersenter persenter new MyDataPersenter(this); persenter.netWork(url); } //接收数据 Override public void toBackHome(List DataBean.NewslistBean list) { Message msg new Message(); msg.obj list; handler.sendMessage(msg); my_srl.setRefreshing(false); } //设置点击事件 Override public void OnItemClick(int position) { Evens evens new Evens(); String title list.get(position).getTitle(); String url list.get(position).getPicUrl(); evens.setName(title); evens.setUrl(R.drawable.psb); evens.setUrl2(R.drawable.yy); EventBus.getDefault().postSticky(evens);//发送粘性事件 //实现跳转 Intent intent new Intent(MainActivity.this,Main2Activity.class); startActivity(intent); }}

11.创建Evens 实现传递数据

package com.example.dell.a1511r0411.view;public class Evens { private String name; private int url; private int url2; public int getUrl2() { return url2; } public void setUrl2(int url2) { this.url2 url2; } public int getUrl() { return url; } public void setUrl(int url) { this.url url; } public String getName() { return name; }12.适配器

package com.example.dell.a1511r0411.adapter;import android.content.Context;import android.support.v7.widget.RecyclerView;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import android.widget.TextView;import com.example.dell.a1511r0411.R;import com.example.dell.a1511r0411.model.DataBean;import com.example.dell.a1511r0411.view.MainActivity;import com.facebook.drawee.view.SimpleDraweeView;import java.util.List;/** * Created by dell on 2018/4/11. */public class MyAdapter extends RecyclerView.Adapter{ Context context; List DataBean.NewslistBean list; public MyAdapter(Context context, List DataBean.NewslistBean list) { this.context context; this.list list; } Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view; //判断条目的类型 判断引入的布局文件 int itemViewType getItemViewType(viewType); if(itemViewType 0){ view View.inflate(context, R.layout.rcv_item, null); }else{ view View.inflate(context, R.layout.rcv_item2, null); } MyViewHolder myViewHolder new MyViewHolder(view); return myViewHolder; } //获取条目的类型 然后进行判断 Override public int getItemViewType(int position) { if(position%2 0){ return 0; }else { return 1; } } Override public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) { MyViewHolder myViewHolder (MyViewHolder) holder; //得到条目 int itemViewType getItemViewType(position); if(itemViewType 0){ myViewHolder.rcv_title.setText(list.get(position).getTitle()); }else{ myViewHolder.rcv_title2.setText(list.get(position).getTitle()); } //条目进行点击事件 myViewHolder.itemView.setOnClickListener(new View.OnClickListener() { Override public void onClick(View view) { onClickListener.OnItemClick(position); } }); } Override public int getItemCount() { return list.size(); } class MyViewHolder extends RecyclerView.ViewHolder{ private final TextView rcv_title,rcv_title2; private final SimpleDraweeView rcv_img; private final SimpleDraweeView rcv_img2; public MyViewHolder(View view) { super(view); //找到两个子布局文件的控件id rcv_img view.findViewById(R.id.rcv_img); rcv_title view.findViewById(R.id.rcv_title); rcv_img2 view.findViewById(R.id.rcv_img2); rcv_title2 view.findViewById(R.id.rcv_title2); } } //创建暴露点击事件的类 OnClickListener onClickListener; public void OnClick(OnClickListener onClickListener){ this.onClickListener onClickListener; } //创建点击事件接口 public interface OnClickListener{ void OnItemClick(int position); }}

package com.example.dell.a1511r0411.view;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ImageView;import android.widget.TextView;import com.bumptech.glide.Glide;import com.example.dell.a1511r0411.R;import org.greenrobot.eventbus.EventBus;import org.greenrobot.eventbus.Subscribe;import org.greenrobot.eventbus.ThreadMode;public class Main2Activity extends AppCompatActivity { private TextView my_title; private ImageView my_img; int index 0; Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main2); my_title findViewById(R.id.my_title); my_img findViewById(R.id.my_img); //注册 EventBus.getDefault().register(this); } Subscribe(threadMode ThreadMode.MAIN,sticky true) //在ui线程执行 public void onEvens(Evens evens) { //获取Evens传来的数据 进行赋值 my_title.setText(evens.getName()); if(index%2 0){ Glide.with(this).load(evens.getUrl()).into(my_img); }else{ Glide.with(this).load(evens.getUrl2()).into(my_img); } } Override protected void onDestroy() { super.onDestroy(); //反注册 进行销毁 EventBus.getDefault().unregister(this); }}

 ?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 xmlns:fresco http://schemas.android.com/apk/res-auto android:orientation vertical LinearLayout android:layout_width match_parent android:layout_height wrap_content android:orientation horizontal android:padding 10px com.facebook.drawee.view.SimpleDraweeView android:id id/rcv_img android:layout_width 150px android:layout_height 150px fresco:placeholderImage drawable/psb fresco:roundedCornerRadius 30dp fresco:roundTopLeft true fresco:roundTopRight true fresco:roundBottomLeft true fresco:roundBottomRight true /com.facebook.drawee.view.SimpleDraweeView TextView android:id id/rcv_title android:layout_width wrap_content android:layout_height wrap_content android:text 只要你躺足70天 NASA就给你11万块钱 android:layout_gravity center_vertical android:layout_marginLeft 10px / /LinearLayout /LinearLayout 

 ?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 xmlns:fresco http://schemas.android.com/apk/res-auto android:orientation vertical LinearLayout android:layout_width match_parent android:layout_height wrap_content android:orientation horizontal android:padding 10px com.facebook.drawee.view.SimpleDraweeView android:id id/rcv_img2 android:layout_width 150px android:layout_height 150px fresco:placeholderImage drawable/yy 

 fresco:actualImageScaleType centerCrop fresco:placeholderImageScaleType centerCrop fresco:roundAsCircle true 

/com.facebook.drawee.view.SimpleDraweeView  

  TextView android:id id/rcv_title2  

android:layout_width wrap_content  

android:layout_height wrap_content  

android:text 只要你躺足70天 NASA就给你11万块钱  

android:layout_marginLeft 10px  

android:layout_gravity center_vertical /  

  /LinearLayout /LinearLayout 15.接收数据的页面

 ?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.dell.a1511r0411.view.Main2Activity LinearLayout android:layout_width match_parent android:layout_height wrap_content android:orientation horizontal android:padding 10px ImageView android:id id/my_img android:layout_width 150px android:layout_height 150px android:src mipmap/ic_launcher / TextView android:id id/my_title android:layout_width wrap_content android:layout_height wrap_content android:text 只要你躺足70天 NASA就给你11万块钱 android:layout_gravity center_vertical android:layout_marginLeft 10px / /LinearLayout /LinearLayout 

package com.example.dell.a1511r0411.util;import android.os.Environment;import java.io.File;import java.util.Map;import java.util.concurrent.TimeUnit;import okhttp3.Cache;import okhttp3.Callback;import okhttp3.FormBody;import okhttp3.MediaType;import okhttp3.MultipartBody;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.RequestBody;public class OkhtttpUtils { //单例模式 把构造方法进行私有化 private OkhtttpUtils(){}; static OkHttpClient client; public static OkHttpClient getInstance(){ if (client null) { //更加安全 synchronized (OkhtttpUtils.class) { //缓存的地方 mnt/sdcard File file new File(Environment.getExternalStorageDirectory(), cache11 ); client new OkHttpClient().newBuilder() .readTimeout(3000, TimeUnit.SECONDS) //设置读取超时时间 .connectTimeout(3000, TimeUnit.SECONDS) //设置连接的超时时间 .cache(new Cache(file, 10 * 1024)) .build(); } } return client; } /** * get请求 * Callback 是一个接口 */ public static void doGet(String url, Callback callback){ //1:拿到okhttpclient 对像 OkHttpClient client getInstance(); //2:进行请求的操作 Request request new Request.Builder() .url(url) .build(); client.newCall(request).enqueue(callback); } //post请求 /** * * param url 请求的地址 * param parms 请求的参数 * param callback callback */ public static void doPost(String url, Map String,String parms,Callback callback){ //得到客户端的对像 OkHttpClient client getInstance(); //不是FormBody 而是一个Builder FormBody.Builder body new FormBody.Builder(); //key value for (String key:parms.keySet()){ //value的值 body.add(key,parms.get(key)); } Request request new Request.Builder() .url(url) .post(body.build()) .build(); client.newCall(request).enqueue(callback); } //用来上传图片的 //url , 图片 参数 Callback public static void upImage(String url,File file,String filenName,Map String,String params,Callback callback){ OkHttpClient client getInstance(); //requestBody的实现类 Formbody MultipartBody.Builder builder new MultipartBody.Builder(); if (params! null){ for (String key :params.keySet()){ builder.addFormDataPart(key,params.get(key)); } } //设置类型 builder.setType(MultipartBody.FORM); builder.addFormDataPart( file ,filenName,RequestBody.create(MediaType.parse( application/octet-stream ),file)); // builder.setType(MultipartBody.FORM); // builder.addFormDataPart( file ,filenName,RequestBody.create(MediaType.parse( application/octet-stream ),file)); //builder.addFormDataPart( file , aa.png ,builder.build()); Request request new Request.Builder() .url(url) .post(builder.build()) .build(); client.newCall(request).enqueue(callback); }}