团队开发冲刺第十天（实现页面展示评论数与点赞数）

Posted 2021-02-21 xiaofengzai

 

 

今天实现的功能为：页面展示每条数据的评论数与点赞数，大部分的代码是在服务器端的servlet请求编写。

遇到困难：目前还有bug，就是每次刷新后点赞数与评论数不符合，切换一级入口会使数据丢失，目前已经实现页面的点赞数与评论数的基本展示，明天攻克这些小bug

明天任务：把bug修复，有时间将搜索框大概功能做出来。

package com.example.newbsh.UI.home.hometype.news.adapter;

import android.annotation.SuppressLint;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.navigation.Navigation;
import androidx.recyclerview.widget.RecyclerView;

import com.bumptech.glide.Glide;
import com.bumptech.glide.request.RequestOptions;
import com.example.newbsh.HttpUtil.HttpUtil;
import com.example.newbsh.R;
import com.example.newbsh.UI.home.hometype.news.shownews.ShowNewsActivity;
import com.example.newbsh.UI.home.hometype.news.shownews.comment.BlogComment;

import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONArray;

import java.lang.ref.WeakReference;

public class NewsAdapter extends RecyclerView.Adapter<NewsAdapter.MyViewHolder> {
   JSONArray jsonArray=new JSONArray();
    private View itemview;
    private String numcomment,numsupport;
    public void setJsonArray(JSONArray jsonArray) {
        this.jsonArray = jsonArray;
    }

    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        LayoutInflater layoutInflater=LayoutInflater.from(parent.getContext());
        itemview=layoutInflater.inflate(R.layout.cell_news,parent,false);
        return new MyViewHolder(itemview);
    }
    /*
    展示评论的数据
     */
    private void showComment(String title) {

        new Thread(new Runnable() {
            @Override
            public void run() {
                String reqdata="http://39.97.181.86/BaiXiaoSheng/newscomment?title="+title;
                numcomment =String.valueOf(HttpUtil.sendPost(reqdata,""));
                Log.d("data", "评论:"+ numcomment);
            }
        }).start();
        Log.d("data", "评论:"+ numcomment);
    }
    /*
    展示点赞的数据
     */
    private void showSupport(String title) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                String reqdata="http://39.97.181.86/BaiXiaoSheng/newssupport?title="+title;
                numsupport =String.valueOf(HttpUtil.sendPost(reqdata,""));
                Log.d("data", "点赞:"+ numsupport);
            }
        }).start();
        Log.d("data", "点赞:"+ numsupport);
    }

    @Override
    public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {

        JSONObject bean= null;
        try {
            bean = jsonArray.getJSONObject(position);
            holder.textViewTitle.setText(bean.getString("title"));
            holder.textViewJianJie.setText(bean.getString("doc"));
            holder.textViewClicknumber.setText(bean.getString("click"));
            holder.textViewDatetime.setText(bean.getString("date"));
            String []urls=bean.getString("url").split(" ");
            showSupport(bean.getString("title"));
            showComment(bean.getString("title"));
            holder.textViewnewscomment.setText(numcomment);
            holder.textViewnewssupport.setText(numsupport);
            numcomment="0";numsupport="0";
            RequestOptions options = new RequestOptions()
                    .error(R.drawable.error)
                    .placeholder(R.drawable.loading);
            if(urls.length!=0) {
                for(int i=0;i<urls.length;i++)
                {
                    if(!urls[i].equals(" "))
                    {
                        Log.i("url",urls[i]);
                        Glide.with(itemview)
                                .load(urls[i])
                                .apply(options)
                                .into(holder.photo);
                        break;
                    }
                }
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Bundle bundle=new Bundle();
                try {
                    bundle.putString("title", jsonArray.getJSONObject(position).getString("title"));
                    bundle.putString("doc",jsonArray.getJSONObject(position).getString("doc"));
                    bundle.putString("click",jsonArray.getJSONObject(position).getString("click"));
                    bundle.putString("date",jsonArray.getJSONObject(position).getString("date"));
                    bundle.putString("url",jsonArray.getJSONObject(position).getString("url"));
                    bundle.putString("authorname",jsonArray.getJSONObject(position).getString("authorname"));
                    bundle.putString("authorurl",jsonArray.getJSONObject(position).getString("authorurl"));
                } catch (JSONException e) {
                    e.printStackTrace();
                }
                Navigation.findNavController(v).navigate(R.id.action_home_to_showNewsActivity,bundle);
            }
        });
    }

    @Override
    public int getItemCount() {
        return jsonArray.length();
    }

    static class MyViewHolder extends RecyclerView.ViewHolder{
        TextView textViewTitle,textViewJianJie,textViewDatetime,textViewClicknumber,textViewnewssupport,textViewnewscomment;
        ImageView photo;
        public MyViewHolder(@NonNull View itemView) {
            super(itemView);
            textViewTitle=itemView.findViewById(R.id.NewsTitle);
            textViewJianJie=itemView.findViewById(R.id.jianjie);
            textViewClicknumber=itemView.findViewById(R.id.clicknumber);
            textViewDatetime=itemView.findViewById(R.id.datetime);
            textViewnewscomment=itemView.findViewById(R.id.newscomment);
            textViewnewssupport=itemView.findViewById(R.id.newsupport);
            photo=itemView.findViewById(R.id.userphoto);
        }
    }
}