个人作业阶段二 4

在xml文件中部署一个 echarts 的容器

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    tools:context=".ShowActivity1">

   <TextView
       android:id="@+id/text1"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:layout_marginTop="50dp"
       android:textSize="16sp"
       android:textColor="#000000"
       android:layout_marginHorizontal="20dp"
       android:gravity="center"/>

  <com.github.mikephil.charting.charts.BarChart
       android:id ="@+id/bar"
       android:layout_width="match_parent"
       android:layout_height="500dp"
       android:layout_below="@+id/text1"
       android:layout_marginTop="20dp">

   </com.github.mikephil.charting.charts.BarChart>



</RelativeLayout>

　

activity.java　

package com.example.myapplication;

import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.view.WindowManager;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

import com.github.mikephil.charting.charts.BarChart;
import com.github.mikephil.charting.components.Legend;
import com.github.mikephil.charting.components.XAxis;
import com.github.mikephil.charting.components.YAxis;
import com.github.mikephil.charting.data.BarData;
import com.github.mikephil.charting.data.BarDataSet;
import com.github.mikephil.charting.data.BarEntry;
import com.github.mikephil.charting.data.Entry;
import com.github.mikephil.charting.formatter.IValueFormatter;
import com.github.mikephil.charting.interfaces.datasets.IBarDataSet;
import com.github.mikephil.charting.utils.ViewPortHandler;

import org.litepal.LitePal;

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

public class
ShowActivity1 extends AppCompatActivity {

    private BarChart barChart;
    private static  List<String> list= new ArrayList<>();


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

        // 去除状态栏
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_show1);


        TextView text1 = findViewById(R.id.text1);
        //所查询的日期传值
        Intent intent = getIntent();
        String TEXT = intent.getStringExtra("DATE");

        List<Infomation>infomations = LitePal.findAll(Infomation.class);
        List<User>users = org.litepal.LitePal.findAll(User.class);
        for(Infomation infomation:infomations) {
            for (User user : users) {
              if(infomation.getZhu_date().equals(TEXT)){
                  list.add(user.getUser_class());
              }
            }
        }

        list = joinList(list);
        initBarChart();
        text1.setText(TEXT+"的各班级情况");

    }

    //合并list中相同元素
    private static List joinList(List list){
        List list2= new ArrayList();
        for(int i=0;i<list.size();i++){
            Object obj = list.get(i);
            //如果当前元素不在list2中，则添加
            if(list2.indexOf(obj)==-1){
                list2.add(0,obj);
            }
        }
        Collections.reverse(list2);  //倒序list
        return list2;
    }

    private void initBarChart(){
        barChart = findViewById(R.id.bar);
        barChart.getDescription().setEnabled(false); // 不显示描述
        barChart.setExtraOffsets(5, 5, 5, 5); // 设置图的偏移量，类似于内边距 ，设置视图窗口大小
        setAxis(); // 设置坐标轴
        setLegend(); // 设置图例
        setData();  // 设置数据
    }

    private void setData() {
        List<IBarDataSet> sets = new ArrayList<>();
        List<BarEntry> barEntries1 = new ArrayList<>();

        int[] num1 = new int[list.size()];  //存放各班级正常填报的人数
        //获取填写得查询日期
        Intent intent = getIntent();
        String TEXT2 = intent.getStringExtra("DATE");
        List<User> users = LitePal.findAll(User.class);

        for (int i = 0; i < list.size(); i++) {
            for (User user1 : users) {
                if (user1.getUser_class().equals(list.get(i))) {
                    List<Infomation> infomations = LitePal.where("zhu_name=?", user1.getUser_name()).find(Infomation.class);
                    for (Infomation infomation1 : infomations) {
                        if (infomation1.getZhu_date().equals(TEXT2)) {
                            num1[i]++;
                        }
                    }
                }
            }
            barEntries1.add(new BarEntry(i, (float) num1[i]));
        }
        BarDataSet barDataSet1 = new BarDataSet(barEntries1, "正常上报");
        barDataSet1.setValueTextColor(Color.BLACK); // 值的颜色
        barDataSet1.setValueTextSize(15f); // 值的大小
        barDataSet1.setColor(Color.parseColor("#FFFF00")); // 柱子的颜色
        //barDataSet1.setLabel("已填报"); // 设置标签之后，图例的内容默认会以设置的标签显示
        // 设置柱子上数据显示的格式
        barDataSet1.setValueFormatter(new IValueFormatter() {
            @Override
            public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) {
                return (int) value + "人";
            }
        });
        sets.add(barDataSet1);

        List<BarEntry> barEntries2 = new ArrayList<>();
        int[] num2 = new int[list.size()];  //存放各班级体温异常的人数
        for (int i = 0; i < list.size(); i++) {
                for (User user2 : users) {
                    if (user2.getUser_class().equals(list.get(i))) {
                        List<Infomation> infomations = LitePal.where("zhu_name=?", user2.getUser_name()).find(Infomation.class);
                        for (Infomation infomation2 : infomations) {
                            if (infomation2.getZhu_date().equals(TEXT2)
                                    && Double.valueOf(infomation2.getZhu_tiwen()).intValue() > 37) {
                                num2[i]++;
                            }
                        }
                    }
                }
                barEntries2.add(new BarEntry((float) (i+0.3), (float) num2[i]));
            }

            BarDataSet barDataSet2 = new BarDataSet(barEntries2, "体温异常");
            barDataSet2.setValueTextColor(Color.BLACK); // 值的颜色
            barDataSet2.setValueTextSize(15f); // 值的大小
            barDataSet2.setDrawValues(true);
            barDataSet2.setColor(Color.parseColor("#BBFFFF"));
            // 设置柱子上数据显示的格式
            barDataSet2.setValueFormatter(new IValueFormatter() {
                @Override
                public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) {
                    return (int) value + "人";
                }
            });
            sets.add(barDataSet2);


            int[] num = new int [list.size()];  //存放各班级注册的总人数
            List<Infomation> infomations1 = LitePal.where("zhu_date=?",TEXT2).find(Infomation.class);
            for(int i=0;i<list.size();i++){
                for (User user4 : users) {
                        if(user4.getUser_class().equals(list.get(i))){
                            num[i]++;
                        }
                    }
            }

            List<BarEntry> barEntries3 = new ArrayList<>();
            int[] num3 = new int[list.size()];  //存放各班级没上报数据的人数
            for (int i = 0; i < list.size(); i++) {
                for (User user3 : users) {
                        if (user3.getUser_class().equals(list.get(i))){
                                num3[i] = num[i] - num1[i];
                        }
                    }
                if(num3[i]<0){
                    num3[i]=0;
                }
                barEntries3.add(new BarEntry((float) (i + 0.6), (float) num3[i]));
            }
            BarDataSet barDataSet3 = new BarDataSet(barEntries3, "未上报体温");
            barDataSet3.setValueTextColor(Color.BLACK); // 值的颜色
            barDataSet3.setValueTextSize(15f); // 值的大小
            barDataSet3.setColor(Color.parseColor("#FFE4E1")); // 柱子的颜色
            // 设置柱子上数据显示的格式
            barDataSet3.setValueFormatter(new IValueFormatter() {
                @Override
                public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) {
                    return (int) value + "人";
                }
            });
            sets.add(barDataSet3);

            BarData barData = new BarData(sets);
            barData.setBarWidth(0.3f); // 设置柱子的宽度
            barChart.setData(barData);
        }


    private void setLegend() {
        Legend legend = barChart.getLegend();
        legend.setFormSize(12f); // 图例的图形大小
        legend.setTextSize(15f); // 图例的文字大小
        legend.setOrientation(Legend.LegendOrientation.HORIZONTAL); // 图例的方向为垂直
        legend.setHorizontalAlignment(Legend.LegendHorizontalAlignment.LEFT); //显示位置，水平右对齐
        legend.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM); // 显示位置，垂直上对齐
        // 设置水平与垂直方向的偏移量
        legend.setYOffset(55f);
        legend.setXOffset(30f);
    }

    private void setAxis() {
        // 设置x轴
        XAxis xAxis = barChart.getXAxis();
        xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);  // 设置x轴显示在下方，默认在上方
        xAxis.setDrawGridLines(false); // 将此设置为true，绘制该轴的网格线。
        xAxis.setLabelCount(list.size());  // 设置x轴上的标签个数
        xAxis.setTextSize(15f); // x轴上标签的大小
        // 设置x轴每最小刻度 interval
        xAxis.setGranularity(1f);

        // 设置x轴显示的值的格式
        xAxis.setValueFormatter((value, axis) -> {

            if ((int) value < list.size()) {
                return list.get((int) value);
            } else {
                return "";
            }
        });
        xAxis.setYOffset(5); // 设置标签对x轴的偏移量，垂直方向

        // 设置y轴，y轴有两条，分别为左和右
        YAxis yAxis_right = barChart.getAxisRight();
        yAxis_right.setAxisMaximum(50f);  // 设置y轴的最大值
        yAxis_right.setAxisMinimum(0f);  // 设置y轴的最小值
        yAxis_right.setEnabled(false);  // 不显示右边的y轴

        YAxis yAxis_left = barChart.getAxisLeft();
        yAxis_left.setAxisMaximum(50f);
        yAxis_left.setAxisMinimum(0f);
        yAxis_left.setTextSize(15f); // 设置y轴的标签大小
    }
}