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本文小編為大家詳細介紹“怎么用Android的HelloChart繪制多折線圖”，內容詳細，步驟清晰，細節處理妥當，希望這篇“怎么用Android的HelloChart繪制多折線圖”文章能幫助大家解決疑惑，下面跟著小編的思路慢慢深入，一起來學習新知識吧。
1.添加依賴庫
compile 'com.github.lecho:hellocharts-android:v1.5.8'
2.布局文件
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <include android:id="@+id/include_id" layout="@layout/titlelayout_theme" android:layout_width="match_parent" android:layout_height="wrap_content" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="4dp" android:orientation="horizontal"> <View android:layout_width="6dp" android:layout_height="6dp" android:background="#BF0815" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="10sp" android:text="噪音" android:layout_marginLeft="5dp" android:textColor="@color/common_gray3"/> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="4dp" android:orientation="horizontal"> <View android:layout_width="6dp" android:layout_height="6dp" android:background="#088B05" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="10sp" android:text="溫度" android:layout_marginLeft="5dp" android:textColor="@color/common_gray3"/> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="4dp" android:orientation="horizontal"> <View android:layout_width="6dp" android:layout_height="6dp" android:background="#0862D8" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="10sp" android:text="pm2.5" android:layout_marginLeft="5dp" android:textColor="@color/common_gray3"/> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="4dp" android:orientation="horizontal"> <View android:layout_width="6dp" android:layout_height="6dp" android:background="#552705" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="10sp" android:text="風速" android:layout_marginLeft="5dp" android:textColor="@color/common_gray3"/> </LinearLayout> <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="4dp" android:orientation="horizontal"> <View android:layout_width="6dp" android:layout_height="6dp" android:background="#6221D1" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="10sp" android:text="pm10" android:layout_marginLeft="5dp" android:textColor="@color/common_gray3"/> </LinearLayout> </LinearLayout> <lecho.lib.hellocharts.view.LineChartView android:id="@+id/line_chart" android:layout_width="match_parent" android:layout_height="match_parent" /> </LinearLayout>
3.Activity類
package com.aldx.hccraftsman.activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.aldx.hccraftsman.R;
import com.aldx.hccraftsman.application.Application;
import com.aldx.hccraftsman.base.BaseActivity;
import com.aldx.hccraftsman.entity.DustLineChart;
import com.aldx.hccraftsman.entity.DustLineChartModel;
import com.aldx.hccraftsman.entity.TempChartData;
import com.aldx.hccraftsman.jsonparse.JSONObject;
import com.aldx.hccraftsman.jsonparse.ReflectUtil;
import com.aldx.hccraftsman.okHttp.LoadingDialogCallback;
import com.aldx.hccraftsman.utils.Api;
import com.aldx.hccraftsman.utils.Constants;
import com.aldx.hccraftsman.utils.LogUtil;
import com.aldx.hccraftsman.utils.Utils;
import com.lzy.okgo.OkGo;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
import cn.qqtheme.framework.picker.DatePicker;
import cn.qqtheme.framework.picker.DateTimePicker;
import lecho.lib.hellocharts.gesture.ZoomType;
import lecho.lib.hellocharts.model.Axis;
import lecho.lib.hellocharts.model.AxisValue;
import lecho.lib.hellocharts.model.Line;
import lecho.lib.hellocharts.model.LineChartData;
import lecho.lib.hellocharts.model.PointValue;
import lecho.lib.hellocharts.model.ValueShape;
import lecho.lib.hellocharts.model.Viewport;
import lecho.lib.hellocharts.view.LineChartView;
import okhttp3.Call;
import okhttp3.Response;
/**
* author: chenzheng
* created on: 2017/9/29 10:18
* description:
*/
public class DustLineChartActivity extends BaseActivity {
@BindView(R.id.line_chart)
LineChartView lineChart;
@BindView(R.id.back_iv)
ImageView backIv;
@BindView(R.id.layout_back)
LinearLayout layoutBack;
@BindView(R.id.title_tv)
TextView titleTv;
@BindView(R.id.right_tv)
TextView rightTv;
@BindView(R.id.layout_right)
LinearLayout layoutRight;
private String projectId;
private List<Integer> colors = new ArrayList<>();
private List<TempChartData> listTemp = new ArrayList<TempChartData>();//數據
private List<AxisValue> mAxisXValues = new ArrayList<AxisValue>(); //x軸方向的坐標數據
private List<AxisValue> mAxisYValues = new ArrayList<AxisValue>(); //y軸方向的坐標數據
private List<Float> distanceList = new ArrayList<Float>();
private boolean hasAxes = true; //是否有軸，x和y軸
private boolean hasAxesNames = true; //是否有軸的名字
private boolean hasLines = true; //是否有線（點和點連接的線，選擇false只會出現點）
private boolean hasPoints = true; //是否有點（每個值的點）
private ValueShape shape = ValueShape.CIRCLE; //點顯示的形式，圓形，正方向，菱形
private boolean isFilled = false; //是否是填充
private boolean hasLabels = true; //每個點是否有名字
private boolean isCubic = false; //是否是立方的，線條是直線還是弧線
private boolean hasLabelForSelected = false; //每個點是否可以選擇（點擊效果）
private LineChartData data; // 折線圖封裝的數據類
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_dust_line_chart);
projectId = getIntent().getStringExtra("projectId");
ButterKnife.bind(this);
initView();
initData();
doRequest();
}
private void initData() {
//顏色集合
colors.add(0xff0862D8);
colors.add(0xff6221D1);
colors.add(0xff552705);
colors.add(0xff088B05);
colors.add(0xffBF0815);
}
private void initView() {
titleTv.setText("揚塵監測折線圖");
Calendar calendar1 = Calendar.getInstance();
String sss = Utils.DATE_SIMPLE_FORMATER.format(calendar1.getTime());
rightTv.setText(sss);
layoutRight.setVisibility(View.VISIBLE);
}
public void doRequest() {
OkGo.get(Api.GET_MONITOR_MONTH_BY_PROJECT_ID)
.tag(this)
.params("projectId", projectId)
.params("time", rightTv.getText().toString())
.execute(new LoadingDialogCallback(this, Constants.LOADING_TXT) {
@Override
public void onSuccess(String s, Call call, Response response) {
DustLineChartModel dustLineChartModel = null;
try {
dustLineChartModel = (DustLineChartModel) ReflectUtil
.copy(DustLineChartModel.class,
new JSONObject(s));
} catch (Exception e) {
e.printStackTrace();
}
if (dustLineChartModel != null) {
if (dustLineChartModel.code == Api.SUCCESS_CODE) {
if (dustLineChartModel.data != null) {
setLineChartData(dustLineChartModel.data);
}
} else {
Application.showCodeToast(DustLineChartActivity.this, dustLineChartModel.code);
}
}
}
@Override
public void onError(Call call, Response response, Exception e) {
super.onError(call, response, e);
Application.showResultToast(DustLineChartActivity.this, call, e);
}
});
}
private void setLineChartData(List<DustLineChart> dlcList) {
listTemp.clear();
mAxisXValues.clear();
mAxisYValues.clear();
distanceList.clear();
float yMax = 0;
try {
int xCount = 0;
Calendar curCalendar = Calendar.getInstance();
String curDateStr = Utils.DATE_SIMPLE_FORMATER.format(curCalendar.getTime());
if (rightTv.getText().toString().equals(curDateStr)) {
xCount = curCalendar.get(Calendar.DAY_OF_MONTH);
} else {
Date queryDate = Utils.DATE_FORMATER.parse(rightTv.getText().toString() + "-01");
Calendar queryCalendar = Calendar.getInstance();
queryCalendar.setTime(queryDate);
xCount = queryCalendar.getActualMaximum(Calendar.DAY_OF_MONTH);
}
LogUtil.e("xCount=" + xCount);
for (int j = 1; j <= xCount; j++) {
boolean isFinded = false;
for (DustLineChart dlc : dlcList) {
String tempStr = dlc.time;
if (!Utils.isEmpty(tempStr)) {
Date tempDate = Utils.DATE_FORMATER.parse(tempStr);
Calendar tempCalendar = Calendar.getInstance();
tempCalendar.setTime(tempDate);
if (j == (tempCalendar.get(Calendar.DAY_OF_MONTH))) {
isFinded = true;
if (Utils.toFloat(dlc.pm2) > yMax) {
yMax = Utils.toFloat(dlc.pm2);
}
if (Utils.toFloat(dlc.pm10) > yMax) {
yMax = Utils.toFloat(dlc.pm10);
}
if (Utils.toFloat(dlc.windspeed) > yMax) {
yMax = Utils.toFloat(dlc.windspeed);
}
if (Utils.toFloat(dlc.temperature) > yMax) {
yMax = Utils.toFloat(dlc.temperature);
}
if (Utils.toFloat(dlc.noise) > yMax) {
yMax = Utils.toFloat(dlc.noise);
}
listTemp.add(new TempChartData(j + "", Utils.toFloat(dlc.pm2), Utils.toFloat(dlc.pm10),
Utils.toFloat(dlc.windspeed), Utils.toFloat(dlc.temperature), Utils.toFloat(dlc.noise)));
break;
}
}
}
if (!isFinded) {
listTemp.add(new TempChartData(j + "", 0.0f, 0.0f, 0.0f, 0.0f, 0.0f));
}
}
//設置x軸坐標 ，顯示的是時間5-1,5-2.。。。
mAxisXValues.clear();
for (int i = 1; i <= xCount; i++) { //mClockNumberLength
mAxisXValues.add(new AxisValue(i).setLabel(i + ""));
}
mAxisYValues.clear();
float temp = (yMax + 10) / 10;
for (int k = 0; k < 10; k++) {
float ttt = temp * k;
float fff = Utils.toFloat(((int)ttt)+"");
mAxisYValues.add(new AxisValue(fff).setLabel("" + (int)fff));
}
//獲取距離
for (int i = 1; i <= listTemp.size(); i++) {
float apart = i;//得到的拒Y軸的距離
distanceList.add(apart);
}
//存放線條對象的集合
List<Line> lines = new ArrayList<Line>();
lines.clear();
//把數據設置到線條上面去
for (int i = 0; i < 5; ++i) {
List<PointValue> values = new ArrayList<PointValue>();
for (int j = 0; j < listTemp.size(); ++j) {
//i=0是最高溫度的線，i=1,是最低溫度的線
//PointValue的兩個參數值，一個是距離y軸的長度距離，另一個是距離x軸長度距離
if (i == 0) {
values.add(new PointValue(distanceList.get(j), listTemp.get(j).pm2).setLabel("" + listTemp.get(j).pm2));
} else if (i == 1) {
values.add(new PointValue(distanceList.get(j), listTemp.get(j).pm10).setLabel("" + listTemp.get(j).pm10));
} else if (i == 2) {
values.add(new PointValue(distanceList.get(j), listTemp.get(j).windspeed).setLabel("" + listTemp.get(j).windspeed));
} else if (i == 3) {
values.add(new PointValue(distanceList.get(j), listTemp.get(j).temperature).setLabel("" + listTemp.get(j).temperature));
} else if (i == 4) {
values.add(new PointValue(distanceList.get(j), listTemp.get(j).noise).setLabel("" + listTemp.get(j).noise));
}
}
Line line = new Line(values);
//設置線條的基本屬性
line.setColor(colors.get(i));
line.setShape(shape);
line.setCubic(isCubic);
line.setFilled(isFilled);
line.setHasLabels(hasLabels);
line.setHasLabelsOnlyForSelected(hasLabelForSelected);
line.setHasLines(hasLines);
line.setHasPoints(hasPoints);
line.setStrokeWidth(1);
line.setPointRadius(3);
lines.add(line);
}
data = new LineChartData(lines);
if (hasAxes) {
Axis axisX = new Axis();
Axis axisY = new Axis().setHasLines(true);
if (hasAxesNames) {
axisX.setName("日期");
axisY.setName("數值");
}
//對x軸，數據和屬性的設置
axisX.setTextSize(8);//設置字體的大小
axisX.setHasTiltedLabels(false);//x坐標軸字體是斜的顯示還是直的，true表示斜的
axisX.setTextColor(Color.BLACK);//設置字體顏色
axisX.setHasLines(true);//x軸的分割線
axisX.setValues(mAxisXValues); //設置x軸各個坐標點名稱
//對Y軸 ，數據和屬性的設置
axisY.setTextSize(10);
axisY.setHasTiltedLabels(false);//true表示斜的
axisY.setTextColor(Color.BLACK);//設置字體顏色
axisY.setValues(mAxisYValues); //設置x軸各個坐標點名稱
data.setAxisXBottom(axisX);//x軸坐標線的文字，顯示在x軸下方
// data.setAxisXTop(); //顯示在x軸上方
data.setAxisYLeft(axisY); //顯示在y軸的左邊
} else {
data.setAxisXBottom(null);
data.setAxisYLeft(null);
}
data.setBaseValue(2f); //設置反向覆蓋區域顏色 ？？
data.setValueLabelBackgroundAuto(false);//設置數據背景是否跟隨節點顏色
data.setValueLabelBackgroundColor(Color.BLUE);//設置數據背景顏色
data.setValueLabelBackgroundEnabled(false);//設置是否有數據背景
data.setValueLabelsTextColor(Color.RED);//設置數據文字顏色
data.setValueLabelTextSize(11);//設置數據文字大小
data.setValueLabelTypeface(Typeface.MONOSPACE);//設置數據文字樣式
lineChart.setLineChartData(data); //將數據添加到控件中
lineChart.setViewportCalculationEnabled(false);
lineChart.setZoomType(ZoomType.HORIZONTAL_AND_VERTICAL);//設置線條可以水平方向收縮
final Viewport v = new Viewport(lineChart.getMaximumViewport());
v.bottom = 0;
v.top = yMax+10;
v.left = 0;
v.right = listTemp.size(); // listBlood.size() - 1//如何解釋
lineChart.setMaximumViewport(v);
lineChart.setCurrentViewport(v);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void startActivity(Context context, String projectId) {
Intent intent = new Intent(context, DustLineChartActivity.class);
intent.putExtra("projectId", projectId);
context.startActivity(intent);
}
@OnClick({R.id.layout_back, R.id.layout_right})
public void onViewClicked(View view) {
switch (view.getId()) {
case R.id.layout_back:
finish();
break;
case R.id.layout_right:
chooseDate();
break;
}
}
private void chooseDate() {
Calendar cal = Calendar.getInstance();
try {
cal.setTime(Utils.DATE_FORMATER.parse(rightTv.getText().toString()+"-01"));
} catch (ParseException e) {
e.printStackTrace();
}
Calendar curCal = Calendar.getInstance();
int curMonth = cal.get(Calendar.MONTH) + 1;
int curYear = cal.get(Calendar.YEAR);
final DatePicker picker = new DatePicker(this, DateTimePicker.YEAR_MONTH);
picker.setRangeEnd(curCal.get(Calendar.YEAR), curCal.get(Calendar.MONTH) + 1);
picker.setRangeStart(2010, 1);
picker.setUseWeight(true);
picker.setSelectedItem(curYear, curMonth);
picker.setOnDatePickListener(new DatePicker.OnYearMonthPickListener() {
@Override
public void onDatePicked(String year, String month) {
rightTv.setText(year + "-" + month);
doRequest();
}
});
picker.show();
}
}讀到這里，這篇“怎么用Android的HelloChart繪制多折線圖”文章已經介紹完畢，想要掌握這篇文章的知識點還需要大家自己動手實踐使用過才能領會，如果想了解更多相關內容的文章，歡迎關注億速云行業資訊頻道。
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