RecyclerView加载数据进行展示

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package com.baway.admin.lianxi2;import android.content.Context;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.GridLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import com.google.gson.Gson;import com.squareup.picasso.Picasso;import java.io.IOException;import java.util.List;import bean.Bean;import okhttp3.Call;import okhttp3.Callback;import okhttp3.Response;import utils.OkHttp3Utils;public class MainActivity extends AppCompatActivity {    private String path="http://120.27.23.105/ad/getAd";    private RecyclerView rv;    private List<Bean.MiaoshaBean.ListBeanX> list;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //获取控件        rv = (RecyclerView) findViewById(R.id.rv);        //定义一个布局管理器        GridLayoutManager gridView=new GridLayoutManager(MainActivity.this,2);        //将布局管理器和RecyclerView进行关联        rv.setLayoutManager(gridView);        //定义一个请求数据的方法        initData();    }    //请求数据的方法    private void initData() {        OkHttp3Utils ok=new OkHttp3Utils();        ok.doGet(path, new Callback() {            @Override            public void onFailure(Call call, IOException e) {            }            @Override            public void onResponse(Call call, Response response) throws IOException {                //判断数据是否请求成功                if(response.isSuccessful()){                    final String result=response.body().string();                    runOnUiThread(new Runnable() {                        @Override                        public void run() {                            System.out.println("=========="+result);                            getJson(result);                        }                    });                }            }        });    }    private void getJson(String result) {        Gson gson=new Gson();        Bean b=gson.fromJson(result,Bean.class);        list = b.getMiaosha().getList();        MyAdapter adapter=new MyAdapter(list,this);        rv.setAdapter(adapter);    }    class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder>{        private List<Bean.MiaoshaBean.ListBeanX> list;        private Context context;        public MyAdapter(List<Bean.MiaoshaBean.ListBeanX> list, Context context) {            this.list = list;            this.context = context;        }        @Override        public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {            View view=View.inflate(context,R.layout.item,null);            MyViewHolder myViewHolder=new MyViewHolder(view);            return myViewHolder;        }        @Override        public void onBindViewHolder(MyViewHolder holder, int position) {//            ImageLoaderConfiguration CF=ImageLoaderConfiguration.createDefault(MainActivity.this);//            ImageLoader.getInstance().init(CF);//            ImageLoader.getInstance().displayImage(list.get(position).getImages(),holder.img);            String[] split = list.get(position).getImages().split("\\|");            Picasso.with(context).load(split[0]).into(holder.img);        }        @Override        public int getItemCount() {            return list.size();        }        public class MyViewHolder extends RecyclerView.ViewHolder{            ImageView img;            public MyViewHolder(View itemView) {                super(itemView);                img = itemView.findViewById(R.id.img);            }        }    }}compile 'com.squareup.picasso:picasso:2.5.2'
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