<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin"><LinearLayoutandroid:id="@+id/linearLayout1"android:layout_width="fill_parent"android:layout_height="40.0dip"><TextViewandroid:id="@+id/text4"android:layout_width="fill_parent"android:layout_height="match_parent"android:text="2016年油耗统计"android:textSize="15dp" /></LinearLayout><com.github.mikephil.charting.charts.LineChartandroid:id="@+id/chart1"android:layout_width="match_parent"android:layout_height="400dp"android:layout_marginTop="20dp" /></RelativeLayout>

package com.example.view;import java.util.ArrayList;import android.app.Activity;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.WindowManager;import com.example.iov.R;
import com.github.mikephil.charting.charts.BarLineChartBase.BorderPosition;
import com.github.mikephil.charting.charts.LineChart;
import com.github.mikephil.charting.data.Entry;
import com.github.mikephil.charting.data.LineData;
import com.github.mikephil.charting.data.LineDataSet;
import com.github.mikephil.charting.utils.Legend;
import com.github.mikephil.charting.utils.Legend.LegendForm;
import com.github.mikephil.charting.utils.XLabels;
import com.github.mikephil.charting.utils.XLabels.XLabelPosition;
import com.github.mikephil.charting.utils.YLabels;public class gaschar extends Activity {private LineChart mChart;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);setContentView(R.layout.gasinfo);mChart = (LineChart) findViewById(R.id.chart1);// 设置在Y轴上是否是从0开始显示mChart.setStartAtZero(true);//是否在Y轴显示数据，就是曲线上的数据mChart.setDrawYValues(true);//设置网格mChart.setDrawBorder(true);mChart.setBorderPositions(new BorderPosition[] {BorderPosition.BOTTOM});//在chart上的右下角加描述mChart.setDescription("曲线图");//设置Y轴上的单位mChart.setUnit("￥"); //设置透明度mChart.setAlpha(0.8f);//设置网格底下的那条线的颜色mChart.setBorderColor(Color.rgb(213, 216, 214));//设置Y轴前后倒置mChart.setInvertYAxisEnabled(false);//设置高亮显示mChart.setHighlightEnabled(true);//设置是否可以触摸，如为false，则不能拖动，缩放等mChart.setTouchEnabled(true);//设置是否可以拖拽，缩放mChart.setDragEnabled(true);mChart.setScaleEnabled(true);//设置是否能扩大扩小mChart.setPinchZoom(true);// 设置背景颜色// mChart.setBackgroundColor(Color.GRAY);//设置点击chart图对应的数据弹出标注MyMarkerView mv = new MyMarkerView(this, R.layout.custom_marker_view);// define an offset to change the original position of the marker// (optional)mv.setOffsets(-mv.getMeasuredWidth() / 2, -mv.getMeasuredHeight());// set the marker to the chart
        mChart.setMarkerView(mv);// enable/disable highlight indicators (the lines that indicate the// highlighted Entry)mChart.setHighlightIndicatorEnabled(false);//设置字体格式，如正楷Typeface tf = Typeface.createFromAsset(getAssets(),"OpenSans-Regular.ttf");mChart.setValueTypeface(tf);XLabels xl = mChart.getXLabels();
//        xl.setAvoidFirstLastClipping(true);
//        xl.setAdjustXLabels(true);xl.setPosition(XLabelPosition.BOTTOM); // 设置X轴的数据在底部显示xl.setTypeface(tf); // 设置字体xl.setTextSize(10f); // 设置字体大小xl.setSpaceBetweenLabels(3); // 设置数据之间的间距
YLabels yl = mChart.getYLabels();// yl.setPosition(YLabelPosition.LEFT_INSIDE); // set the positionyl.setTypeface(tf); // 设置字体yl.setTextSize(10f); // s设置字体大小yl.setLabelCount(5); // 设置Y轴最多显示的数据个数// 加载数据
        setData();//从X轴进入的动画mChart.animateX(4000);mChart.animateY(3000);   //从Y轴进入的动画mChart.animateXY(3000, 3000);    //从XY轴一起进入的动画//设置最小的缩放mChart.setScaleMinima(0.5f, 1f);//设置视口// mChart.centerViewPort(10, 50);// get the legend (only possible after setting data)Legend l = mChart.getLegend();l.setForm(LegendForm.LINE);  //设置图最下面显示的类型
        l.setTypeface(tf);  l.setTextSize(15);l.setTextColor(Color.rgb(104, 241, 175));l.setFormSize(30f); // set the size of the legend forms/shapes// 刷新图表
        mChart.invalidate();}private void setData() {String[] aa = {"1","2","3","4","5","6","7","8","9","10","11","12","月"};String[] bb = {"122.00","234.34","85.67","117.90","332.33","113.33"};ArrayList<String> xVals = new ArrayList<String>();for (int i = 0; i < aa.length; i++) {xVals.add(aa[i]);}ArrayList<Entry> yVals = new ArrayList<Entry>();for (int i = 0; i < bb.length; i++) {yVals.add(new Entry(Float.parseFloat(bb[i]), i));}// create a dataset and give it a typeLineDataSet set1 = new LineDataSet(yVals, "DataSet Line");set1.setDrawCubic(true);  //设置曲线为圆滑的线set1.setCubicIntensity(0.2f);set1.setDrawFilled(false);  //设置包括的范围区域填充颜色set1.setDrawCircles(true);  //设置有圆点set1.setLineWidth(2f);    //设置线的宽度set1.setCircleSize(5f);   //设置小圆的大小set1.setHighLightColor(Color.rgb(244, 117, 117));set1.setColor(Color.rgb(104, 241, 175));    //设置曲线的颜色// create a data object with the datasetsLineData data = new LineData(xVals, set1);// set data
        mChart.setData(data);}
}

package com.example.view;import android.content.Context;
import android.widget.TextView;import com.example.iov.R;
import com.github.mikephil.charting.data.CandleEntry;
import com.github.mikephil.charting.data.Entry;
import com.github.mikephil.charting.utils.MarkerView;
import com.github.mikephil.charting.utils.Utils;public class MyMarkerView extends MarkerView {private TextView tvContent;public MyMarkerView(Context context, int layoutResource) {super(context, layoutResource);tvContent = (TextView) findViewById(R.id.tvContent);}// callbacks everytime the MarkerView is redrawn, can be used to update the// content
    @Overridepublic void refreshContent(Entry e, int dataSetIndex) {if (e instanceof CandleEntry) {CandleEntry ce = (CandleEntry) e;tvContent.setText("" + Utils.formatNumber(ce.getHigh(), 0, true));} else {//            tvContent.setText("" + Utils.formatNumber(e.getVal(), 0, true));tvContent.setText("" +e.getVal());}}
}