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
}
}
