1.添加依赖
compile 'com.squareup.retrofit2:retrofit:2.0.1' compile 'com.squareup.retrofit2:converter-gson:2.0.1' compile 'com.squareup.retrofit2:adapter-rxjava:2.0.1' compile 'io.reactivex:rxandroid:1.1.0' compile 'com.squareup.okhttp3:logging-interceptor:3.4.1' compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'
2.添加网络权限
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
2.创建Api类
public class Api { public static final String PAGE_URL = "https://api.tianapi.com/wxnew/"; }3.创建Apiserice类
public interface ApiService { @POST Observable<PageBean> postpage(@Url String url, @QueryMap Map<String, String> map); }
4.创建适配器
public class HomeAdapter extends RecyclerView.Adapter<HomeAdapter.MyViewHolder> { Context context; List<PageBean.NewslistBean> list; public HomeAdapter(Context context, List<PageBean.NewslistBean> list) { this.context = context; this.list = list; } @Override public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { MyViewHolder holder = new MyViewHolder(LayoutInflater.from( context).inflate(R.layout.item_home, parent, false)); return holder; } @Override public void onBindViewHolder(MyViewHolder holder, int position) { holder.tv.setText(list.get(position).getTitle()); } @Override public int getItemCount() { Log.e("main",list.size()+"qweeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"); return list.size(); } class MyViewHolder extends RecyclerView.ViewHolder{ private TextView tv; public MyViewHolder(View itemView) { super(itemView); tv = itemView.findViewById(R.id.tv); } } }
5.MainActivity使用
public class MainActivity extends AppCompatActivity { private RecyclerView mRecyclerView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mRecyclerView = (RecyclerView) findViewById(R.id.id_recyclerview); mRecyclerView.setLayoutManager(new LinearLayoutManager(this)); postHome(Api.PAGE_URL,"2","10"); } public void postHome(String url,String page,String num){ Map<String ,String> map = new HashMap<>(); map.put("key","8d6e3228d25298f13af4fc40ce6c9679"); map.put("num",num); map.put("page",page); Retrofit retrofit = new Retrofit.Builder().baseUrl(url).addConverterFactory(GsonConverterFactory.create()).addCallAdapterFactory(RxJavaCallAdapterFactory.create()).build(); ApiService apiService = retrofit.create(ApiService.class); Observable<PageBean> postpages = apiService.postpage(url,map); postpages.subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(new Observer<PageBean>() { @Override public void onCompleted() { } @Override public void onError(Throwable e) { } @Override public void onNext(PageBean pageBean) { Log.d("MainActivity", "onNext: "+pageBean.getCode()); List<PageBean.NewslistBean> newslist = pageBean.getNewslist(); HomeAdapter adapter = new HomeAdapter(MainActivity.this,newslist); mRecyclerView.setAdapter(adapter); } }); } }
6.主布局
<android.support.v7.widget.RecyclerView android:id="@+id/id_recyclerview" android:divider="#ffff0000" android:dividerHeight="10dp" android:layout_width="match_parent" android:layout_height="match_parent" />
7.item_home布局
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<?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="wrap_content"> <TextView android:id="@+id/tv" android:text="adfasf1" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>8.bean类
public class PageBean { /** * code : 200 * msg : success * newslist : 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*/ private String code; private String msg; private List<NewslistBean> newslist; public String getCode() { return code; } public void setCode(String 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 { /** * ctime : 2017-11-10 * title : 情侣之间的聊天能污到什么程度？ * description : 整点电影 * picUrl : https://zxpic.gtimg.com/infonew/0/wechat_pics_-56256508.jpg/640 * url : https://mp.weixin.qq.com/s?src=16&ver=480×tamp=1510300820&signature=mMqiaarSaAMs1Nrz1L73cftQ22CYCeEvzEXLVL1bbPyzWjDFEw02-ZjfCBp1g5ZBqtnUYgZTALm45MJ1vZ5ts3n2sot7qtelczSnsX9xToQ= */ 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; } } }