团队冲刺（六）

一、认领任务

经过团队讨论，我认领到的工作是：分享页面的运动排行的实现

二、任务完成时间估算

页面布局	2h
从数据库提取	5h

分享页面

展示如下：

主要的实现代码：

shareFragment

package com.example.myapplication5;


import android.app.Fragment;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.Toast;

import com.alibaba.fastjson.JSON;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;


/**
 * A simple {@link Fragment} subclass.
 */
public class shareFragment extends Fragment {
    private View ly3;

    private ImageButton imageButton;
    private ImageButton imageButton5;
    private ImageButton imageButton6;
    private ImageButton imageButton7;
    ListView nameList;
    ListView timeList;
    private String[] Name = new String[0];
    private String[] Time = new String[0];



    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        Intent intent = getActivity().getIntent();
        final String name2 = intent.getStringExtra("name");
        if(ly3 ==null){
            ly3 = inflater.inflate(R.layout.tab03,null);
            nameList = (ListView) ly3.findViewById(R.id.nameList);
            timeList = (ListView) ly3.findViewById(R.id.timeList);

        }
        class postTask extends AsyncTask {

            @Override
            protected Object doInBackground(Object[] params) {
                String path=params[0].toString();
                try {
                    //获取网络上get方式提交的整个路径
                    URL url=new URL(path);
                    //打开网络连接
                    HttpURLConnection conn= (HttpURLConnection) url.openConnection();
                    //设置提交方式
                    conn.setRequestMethod("POST");
                    //设置网络超时时间
                    conn.setConnectTimeout(5000);
                    conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");//键和值是固定的
                    //设置允许对外输出数据
                    conn.setDoOutput(true);
                    //把界面上的所有数据写出去
                    if(conn.getResponseCode()==200){
                        //用io流与web后台进行数据交互
                        InputStream is=conn.getInputStream();
                        //字节流转字符流
                        BufferedReader br=new BufferedReader(new InputStreamReader(is));
                        //读出每一行的数据
                        String str=br.readLine();
                        //返回读出的每一行的数据
                        return str;
                    }
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return null;
            }

            @Override
            protected void onPostExecute(Object o) {
                super.onPostExecute(o);
                //获取Android studio与web后台数据交互获得的值
                String s= (String) o;
                if(s ==null||s.length()<=0){
                    Toast.makeText(getActivity(), "无排行", Toast.LENGTH_SHORT).show();
                }
                else{
                List<Zong> shopInfos = JSON.parseArray(s, Zong.class);
                List<String> list11 = new ArrayList<>();
                List<String> list22 = new ArrayList<>();
                for (Zong zong : shopInfos) {

                    System.out.println(zong.getName());
                    System.out.println(zong.getZong());

                    list11.add(new String(zong.getName()));
                    list22.add(new String(zong.getSzong()));

//
                }
                Name=list11.toArray(new String[list11.size()]);
                Time=list22.toArray(new String[list22.size()]);

//                Toast.makeText(SActivity.this, s, Toast.LENGTH_SHORT).show();
                dosome();}

            }
            public void dosome(){
                //传递参数
                nameList.setAdapter(new ArrayAdapter(getActivity(), android.R.layout.simple_list_item_1, Name));
                timeList.setAdapter(new ArrayAdapter(getActivity(), android.R.layout.simple_list_item_1, Time));
                setListViewOnTouchAndScrollListener(nameList,timeList);
            }
        }

        String path="http://10.0.2.2:8080/testhttp/DateShow.Servlet";//这里是本地web的地址，先运行httptest的Servlet再启动，才不会闪退。而http://120.79.40.20/testhttp/    http://10.0.2.2:8080/testhttp/
        //调用postTask,把获取到的数据与路径放入方法中，这里没有放数据。
        new postTask().execute(path);
        return ly3;
    }


    public void setListViewOnTouchAndScrollListener(final ListView listView1,final ListView listView2){


        //设置listview2列表的scroll监听，用于滑动过程中左右不同步时校正
        listView2.setOnScrollListener(new AbsListView.OnScrollListener() {

            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {
                //如果停止滑动
                if(scrollState == 0 || scrollState == 1){
                    //获得第一个子view
                    View subView = view.getChildAt(0);

                    if(subView !=null){
                        final int top = subView.getTop();
                        final int top1 = listView1.getChildAt(0).getTop();
                        final int position = view.getFirstVisiblePosition();

                        //如果两个首个显示的子view高度不等
                        if(top != top1){
                            listView1.setSelectionFromTop(position, top);
                        }
                    }
                }

            }

            public void onScroll(AbsListView view, final int firstVisibleItem,
                                 int visibleItemCount, int totalItemCount) {
                View subView = view.getChildAt(0);
                if(subView != null){
                    final int top = subView.getTop();

//      //如果两个首个显示的子view高度不等
                    int top1 = listView1.getChildAt(0).getTop();
                    if(!(top1 - 7 < top &&top < top1 + 7)){
                        listView1.setSelectionFromTop(firstVisibleItem, top);
                        listView2.setSelectionFromTop(firstVisibleItem, top);
                    }

                }
            }
        });

        //设置listview1列表的scroll监听，用于滑动过程中左右不同步时校正
        listView1.setOnScrollListener(new AbsListView.OnScrollListener() {

            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {
                if(scrollState == 0 || scrollState == 1){
                    //获得第一个子view
                    View subView = view.getChildAt(0);

                    if(subView !=null){
                        final int top = subView.getTop();
                        final int top1 = listView2.getChildAt(0).getTop();
                        final int position = view.getFirstVisiblePosition();

                        //如果两个首个显示的子view高度不等
                        if(top != top1){
                            listView1.setSelectionFromTop(position, top);
                            listView2.setSelectionFromTop(position, top);
                        }
                    }
                }
            }

            @Override
            public void onScroll(AbsListView view, final int firstVisibleItem,
                                 int visibleItemCount, int totalItemCount) {
                View subView = view.getChildAt(0);
                if(subView != null){
                    final int top = subView.getTop();
                    listView1.setSelectionFromTop(firstVisibleItem, top);
                    listView2.setSelectionFromTop(firstVisibleItem, top);

                }
            }
        });
    }

}

xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="top"
    android:orientation="vertical">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="240dp"
        android:background="@drawable/runbg">

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/guideline4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.59" />

        <TextView
            android:id="@+id/textView5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="运动排行"
            android:textSize="24sp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/guideline4"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_bias="0.076" />

        <ListView
            android:id="@+id/nameList"
            android:layout_width="206dp"
            android:layout_height="140dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/guideline4"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="@+id/guideline6" />

        <ListView
            android:id="@+id/timeList"
            android:layout_width="93dp"
            android:layout_height="140dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/guideline5"
            app:layout_constraintStart_toStartOf="@+id/guideline4"
            app:layout_constraintTop_toTopOf="@+id/guideline6" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/guideline5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.89" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/guideline6"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            app:layout_constraintGuide_begin="62dp" />

        <TextView
            android:id="@+id/textView7"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="运动时长"
            android:textSize="24sp"
            app:layout_constraintBottom_toTopOf="@+id/guideline6"
            app:layout_constraintEnd_toStartOf="@+id/guideline5"
            app:layout_constraintStart_toStartOf="@+id/guideline4"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_bias="0.47000003" />

    </androidx.constraintlayout.widget.ConstraintLayout>


</LinearLayout>

下面是后台的实现：

bean层：

public class Date {
private String type;
private String time;
private String date;
private String name;

public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}

}

dao层：

public class DateShowDao {
public List<Date> select(){
Connection conn = DBUtil.getConn(); //连接数据库
List<Date> list = new ArrayList<Date>();
try {
String sql="select * from date";
Statement pstmt = (Statement) conn.createStatement();
ResultSet rs = (ResultSet) pstmt.executeQuery(sql);
while(rs.next()) {
Date Date=new Date();
Date.setType(rs.getString("type"));
Date.setTime(rs.getString("time"));
Date.setDate(rs.getString("date"));
Date.setName(rs.getString("name"));
list.add(Date);
}
rs.close();
pstmt.close();
conn.close();

}catch(SQLException e) {
e.printStackTrace();
}
return list;
}
public List<Date> select1(String name){
Connection conn = DBUtil.getConn(); //连接数据库
List<Date> list = new ArrayList<Date>();
try {
String sql="select * from date where name like '%"+name+"%' ";
Statement pstmt = (Statement) conn.createStatement();
ResultSet rs = (ResultSet) pstmt.executeQuery(sql);
while(rs.next()) {
Date Date=new Date();
Date.setType(rs.getString("type"));
Date.setTime(rs.getString("time"));
Date.setDate(rs.getString("date"));
Date.setName(rs.getString("name"));
list.add(Date);
}
rs.close();
pstmt.close();
conn.close();

}catch(SQLException e) {
e.printStackTrace();
}
return list;
}
}

servlet层：

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;

import com.test.dao.DateShowDao;
import com.test.bean.Date;
import com.test.bean.Shiwu;
import com.test.bean.Zong;

/**
* Servlet implementation class DateShowServlet
*/
@WebServlet("/DateShowServlet")
public class DateShowServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

/**
* @see HttpServlet#HttpServlet()
*/
public DateShowServlet() {
super();
// TODO Auto-generated constructor stub
}

/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setContentType("text/html;charset=utf-8");
DateShowDao dsd=new DateShowDao();
// int t=0;
List<Date> list = dsd.select();
System.out.println(list);
int j=0;
List<String> list1 = new ArrayList<>();
List<Date> list2 = new ArrayList<>();
List<Zong> list3 = new ArrayList<Zong>();
for(Date date: list){
if(!list1.contains(date.getName())) {
list1.add(date.getName());
}
// j++;
}
// System.out.println("j:"+j);
for(String s:list1) {
Zong z= new Zong(s, j);
z.setName(s);
z.setZong(0);
list3.add(z);
}
for(Zong z:list3) {
int t=0;
for(Date date:list) {
if(date.getName().equals(z.getName())) {
String[] my =date.getTime().split(":");
int hour =Integer.parseInt(my[0]);
int min =Integer.parseInt(my[1]);
int sec =Integer.parseInt(my[2]);
int zong =hour*3600+min*60+sec;
t=t+zong;
// System.out.println(date.getName()+zong+" "+t);
}
}
// System.out.println("t:"+t);

String str = String.valueOf(t);
str = str+"秒";
z.setZong(t);
z.setSzong(str);
}
Collections.sort(list3, new Comparator<Zong>() {
public int compare(Zong o1, Zong o2) {
//升序
return o1.getZong().compareTo(o2.getZong());
}
});
System.out.println("升序排序后--:"+list3.toString());

Collections.sort(list3, new Comparator<Zong>() {
public int compare(Zong o1, Zong o2) {
//升序
return o2.getZong().compareTo(o1.getZong());
}
});
System.out.println("降序排序后--:"+list3.toString());


int i=1;
for(Zong z:list3) {
String ss = String.valueOf(i);
String rr =ss+"."+z.getName();
z.setName(rr);
i++;
System.out.println(z.getName()+":"+z.getZong()+" "+z.getSzong());
}

String json = JSON.toJSONString(list3);
System.out.println(json);
PrintWriter pw=response.getWriter();
pw.write(json);
pw.close();
}

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}

}

这样子运动排行功能就能实现了。

期间遇到的困难有：

对于时间格式的转换进行排序。在这里花费的时间较多。