ListView 发送网络请求，渲染到视图上面_安卓 http请求后如何渲染listview

fragment 代码

package com.example.myapplication;

import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import androidx.fragment.app.Fragment;
import com.alibaba.fastjson.JSONObject;
import com.example.myapplication.adapter.CellListAdapter;
import com.example.myapplication.core.worker.WorkerUtil;
import com.example.myapplication.entity.Article;
import com.example.myapplication.entity.FirstPageVO;
import okhttp3.*;
import org.jetbrains.annotations.NotNull;

import java.io.IOException;
import java.util.LinkedList;


/**
 * A simple {@link Fragment} subclass.
 * Use the {@link HomeFragment#newInstance} factory method to
 * create an instance of this fragment.
 */
public class HomeFragment extends Fragment {

    public HomeFragment() {
        // Required empty public constructor
    }


    // TODO: Rename and change types and number of parameters
    public static HomeFragment newInstance(String param1, String param2) {
        HomeFragment fragment = new HomeFragment();
        Bundle args = new Bundle();

        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

    }

    LinkedList<Article> data = new LinkedList<>();
    ListView listView;
    private int total = 100;
    private final int size = 5;
    private int pages = 10;
    private int page = 1;
    CellListAdapter adapter = null;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View page = inflater.inflate(R.layout.home_fragment, container, false);;
        // Activity a   ctivity = getActivity();
        listView = page.findViewById(R.id.listview);

        //
        // getActivity().runOnUiThread(()->{
        //
        // });

        // Article article = new Article();
        // article.setTitle("6666");
        // data.add(article);
        adapter = new CellListAdapter(getActivity(), data);
        listView.setAdapter(adapter);
        WorkerUtil.doWork(()->{
            getFirstPageData();
        });
        // Inflate the layout for this fragment
        return page;
    }

    public void getFirstPageData() {

            OkHttpClient client = new OkHttpClient();
            Request request = new Request.Builder()
                    .url("http://www.itshare.club/api/blogList?page="+page+"&size="+size)
                    .get().build();
            Call call = client.newCall(request);
            call.enqueue(new Callback() {
                @Override
                public void onFailure(@NotNull Call call, @NotNull IOException e) {

                }

                @Override
                public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {
                    // System.out.println(("res"+ response.body().string() ));
                    FirstPageVO json = JSONObject.parseObject(response.body().string(), FirstPageVO.class);
                    page++;
                    FirstPageVO.Data d = json.getData();
                    total = d.getTotal();
                    pages = d.getPages();
                    data.addAll(d.getContentList());
                    getActivity().runOnUiThread(() -> {
                        Log.i("request .","success"+page);
                        adapter.setList(data);
                        adapter.notifyDataSetChanged();
                    });
                  ;
                }
            });
    }
}


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adapter 代码

package com.example.myapplication.adapter;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import com.example.myapplication.R;
import com.example.myapplication.entity.Article;

import java.util.ArrayList;
import java.util.List;

/**
 * @Author lyr
 * @create 2020/10/9 12:44
 */

public class CellListAdapter extends BaseAdapter {
    List<Article> list = new ArrayList<>();

    public List<Article> getList() {
        return list;
    }

    public CellListAdapter setList(List<Article> list) {
        this.list = list;
        return this;
    }

    public LayoutInflater getInflater() {
        return inflater;
    }

    public CellListAdapter setInflater(LayoutInflater inflater) {
        this.inflater = inflater;
        return this;
    }

    public TextView getTitle() {
        return title;
    }

    public CellListAdapter setTitle(TextView title) {
        this.title = title;
        return this;
    }

    public ImageView getImageView() {
        return imageView;
    }

    public CellListAdapter setImageView(ImageView imageView) {
        this.imageView = imageView;
        return this;
    }

    LayoutInflater inflater;

    public CellListAdapter(Context context, List<Article> list) {
        this.list = list;
        inflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {
        if (list == null) {
            return 0;
        }
        return list.size();
    }

    @Override
    public long getItemId(int i) {
        return i;
    }

    @Override
    public Object getItem(int i) {
        if (list == null) {
            return null;
        }
        return list.get(i);
    }

    TextView title;
    ImageView imageView;
    TextView description;


    @Override
    public View getView(int i, View convertView, ViewGroup viewGroup) {

        // 当view为空时才加载布局，否则，直接修改内容
        if (convertView == null) {
            // 通过inflate的方法加载布局，context需要在使用这个Adapter的Activity中传入。
            convertView = inflater.inflate(R.layout.cell_item, null);
            title = convertView.findViewById(R.id.a_title);
            imageView = convertView.findViewById(R.id.a_imageView);
            description = convertView.findViewById(R.id.a_description);

            // 用setTag方法将处理好的viewHolder放入view中
        }
        Article article = this.list.get(i);

        // imageView.setImageURI(Uri.parse("http://img.itshare.club/20200915222524.png"));
        Glide.with(imageView.getContext())
                .load(article.getFirstPicture())
                .into(imageView);
        title.setText(article.getTitle());
        description.setText(article.getDescription());

        // 从viewHolder中取出对应的对象，然后赋值给他们
        // viewHolder.title.setText(list.get(i).getTitle());

        // 将这个处理好的view返回
        return convertView;
    }


}

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