刷新加Rectorfit2和Rxjava

//要添加的依赖

compile 'cn.bingoogolapple:bga-refreshlayout:1.1.7'compile 'com.squareup.okhttp3:okhttp:3.9.0'compile 'com.squareup.okio:okio:1.13.0'implementation 'com.google.code.gson:gson:2.8.2'implementation 'com.android.support:recyclerview-v7:26.+'compile 'cn.bingoogolapple:bga-adapter:1.1.5@aar'compile 'com.squareup.retrofit2:converter-gson:2.3.0'//compile 'com.squareup.retrofit2:retrofit:2.3.0'compile 'io.reactivex.rxjava2:rxjava:2.1.3'compile 'io.reactivex.rxjava2:rxandroid:2.0.1'

//布局文件注意两个ID

<cn.bingoogolapple.refreshlayout.BGARefreshLayout 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:id="@+id/bga_rl"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.example.administrator.lian_yue.MainActivity">    <android.support.v7.widget.RecyclerView        android:id="@+id/rv"        android:layout_weight="1"        android:layout_width="match_parent"        android:layout_height="0dp"></android.support.v7.widget.RecyclerView></cn.bingoogolapple.refreshlayout.BGARefreshLayout>
//rectorfit请求接口
public interface NetInterface {    @GET()    Call<FoodInfo> getDataFromNet2(@Url String url);}
//刷新适配器
public class RvAdapter extends BGARecyclerViewAdapter<FoodInfo.DataBean>{    public RvAdapter(RecyclerView recyclerView) {        //添加布局        super(recyclerView,R.layout.item_rv);    }    @Override    protected void fillData(BGAViewHolderHelper helper, int position, FoodInfo.DataBean model) {        //设置内容        helper.setText(R.id.tv,model.getTitle())        .setText(R.id.tv_food,model.getFood_str())        .setImageResource(R.id.iv,R.mipmap.ic_launcher_round);    }}
//实现代码Rxjava
import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.widget.Toast;import com.example.demonstrate.DemonstrateUtil;import com.google.gson.Gson;import java.util.List;import cn.bingoogolapple.refreshlayout.BGARefreshLayout;import cn.bingoogolapple.refreshlayout.BGAStickinessRefreshViewHolder;import io.reactivex.Observable;import io.reactivex.ObservableEmitter;import io.reactivex.ObservableOnSubscribe;import io.reactivex.android.schedulers.AndroidSchedulers;import io.reactivex.functions.Consumer;import io.reactivex.functions.Function;import io.reactivex.schedulers.Schedulers;import okhttp3.OkHttpClient;import retrofit2.Response;import retrofit2.Retrofit;import retrofit2.converter.gson.GsonConverterFactory;
public class MainActivity extends AppCompatActivity {    protected RecyclerView rv;    protected BGARefreshLayout bgaRl;    private String url = "http://www.qubaobei.com/ios/cf/dish_list.php/?stage_id=1&limit=10&page=1";    private Gson gson;    private RvAdapter adapter;    private OkHttpClient client;    private String baseUrl = "http://www.qubaobei.com/";    private String urlAll ="http://www.qubaobei.com/ios/cf/dish_list.php/?stage_id=1&limit=10&page=1";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        gson = new Gson();        client = new OkHttpClient                .Builder()                .build();        initView();        request();    }    private void request() {        Observable.create(new ObservableOnSubscribe<FoodInfo>() {            @Override            public void subscribe(ObservableEmitter<FoodInfo> e) throws Exception {                //发射数据的逻辑.                Response<FoodInfo> response = new Retrofit.Builder()                        .baseUrl(baseUrl)                        .addConverterFactory(GsonConverterFactory.create())                        .client(client)                        .build()                        .create(NetInterface.class)                        .getDataFromNet2(urlAll)                        .execute();                FoodInfo foodInfo = response.body();                //不用map符//                List<FoodInfo.DataBean> dataBeans = foodInfo.getData();                e.onNext(foodInfo);            }        }).subscribeOn(Schedulers.io()).map(new Function<FoodInfo, List<FoodInfo.DataBean>>() {            @Override            public List<FoodInfo.DataBean> apply(FoodInfo foodInfo) throws Exception {                return foodInfo.getData();            }        }).observeOn(AndroidSchedulers.mainThread())                .subscribe(new Consumer<List<FoodInfo.DataBean>>() {                    @Override                    public void accept(List<FoodInfo.DataBean> dataBeans) throws Exception {                        //执行更UI的操作.                        for (FoodInfo.DataBean info : dataBeans){                            DemonstrateUtil.showLogResult(info.toString());                        }                        adapter.setData(dataBeans);                    }                });    }    private void initView() {        rv = (RecyclerView) findViewById(R.id.rv);        bgaRl = (BGARefreshLayout) findViewById(R.id.bga_rl);        bgaRl.setDelegate(new BGARefreshLayout.BGARefreshLayoutDelegate() {            @Override            public void onBGARefreshLayoutBeginRefreshing(BGARefreshLayout refreshLayout) {                //刷新进行的操作                DemonstrateUtil.showToastResult(MainActivity.this,"刷新成功");                refreshLayout.endRefreshing();            }            @Override            public boolean onBGARefreshLayoutBeginLoadingMore(BGARefreshLayout refreshLayout) {                //加载进行的操作.                return false;            }        });        BGAStickinessRefreshViewHolder stickinessRefreshViewHolder                = new BGAStickinessRefreshViewHolder(this, true);                stickinessRefreshViewHolder.setStickinessColor(R.color.colorPrimary);                stickinessRefreshViewHolder.setRotateImage(R.mipmap.bga_refresh_loading12);                bgaRl.setRefreshViewHolder(stickinessRefreshViewHolder);        adapter = new RvAdapter(rv);        rv.setLayoutManager(new LinearLayoutManager(this));        rv.setAdapter(adapter);    }}

//数据实体类
使用快捷键创建GsonFormat
//item_rv布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:padding="10dp"    android:orientation="horizontal">    <ImageView        android:id="@+id/iv"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:src="@mipmap/ic_launcher" />    <LinearLayout        android:layout_marginLeft="20dp"        android:layout_gravity="center_vertical"        android:orientation="vertical"        android:layout_width="wrap_content"        android:layout_height="wrap_content">        <TextView            android:text="11111111"            android:id="@+id/tv"            android:layout_width="wrap_content"            android:layout_height="wrap_content" />        <TextView            android:text="2222222"            android:id="@+id/tv_food"            android:layout_width="wrap_content"            android:layout_height="wrap_content" />    </LinearLayout></LinearLayout>