最牛逼android上的图表库MpChart（二） 折线图

 

最牛逼android上的图表库MpChart（二） 折线图

最近工作中，用到了mpchart图表库，现在分享受下mpchart图表库的各个图表在实际工作应用场景：

  • 最牛逼android上的图表库MpChart（一） 介绍篇
  • 最牛逼android上的图表库MpChart（二） 折线图
  • 最牛逼android上的图表库MpChart（三） 条形图
  • 最牛逼android上的图表库MpChart（四） 饼图
  • 最牛逼android上的图表库MpChart（五） 泡泡图

使用mpchart jar包：mpandroidchartlibrary-2-1-6.jar 
如果是在studio下，进行如下引用： 
repositories { 
maven { url “https://jitpack.io” } 
}

dependencies { 
compile ‘com.github.PhilJay:MPAndroidChart:v2.1.6’ 
}

MpChart折线图介绍

  • LineChart类

  • 使用哪些API

    • setBackgroundColor(int color): Sets the background color that will cover the whole chart-view. In addition, a background-color can be set via .xml in the layout file.
    • setDescription(String desc): Set a description text that appears in the bottom right corner of the chart.
    • setDescriptionColor(int color): Sets the color of the description text.
    • setDescriptionPosition(float x, float y): Sets a custom position for the description text in pixels on the screen.
    • setDescriptionTypeface(Typeface t): Sets the Typeface used for drawing the description text.
    • setDescriptionTextSize(float size): Sets the size of the description text in pixels, min 6f, max 16f.
    • setNoDataTextDescription(String desc): Sets the text that should appear if the chart is empty.
    • setDrawGridBackground(boolean enabled): If enabled, the background rectangle behind the chart drawing-area will be drawn.
    • setGridBackgroundColor(int color): Sets the color the grid-background should be drawn with.
    • setDrawBorders(boolean enabled): Enables / disables drawing the chart borders (lines surrounding the chart).
    • setBorderColor(int color): Sets the color of the chart border lines.
    • setBorderWidth(float width): Sets the width of the chart border lines in dp.
    • setMaxVisibleValueCount(int count): Sets the number of maximum visible drawn value-labels - on the chart. This only takes affect when setDrawValues() is enabled.

MpChart折线图实例

  • 布局文件
  • Java代码    
 1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent" >
 5 
 6     <com.github.mikephil.charting.charts.LineChart
 7         android:id="@+id/chart1"
 8         android:layout_width="match_parent"
 9         android:layout_height="match_parent"/>
10 
11 </RelativeLayout>
  1 package com.example.mpchart;
  2 
  3 import java.util.ArrayList;
  4 
  5 import android.app.Activity;
  6 import android.graphics.Color;
  7 import android.graphics.Typeface;
  8 import android.os.Bundle;
  9 import android.os.Handler;
 10 import android.os.Looper;
 11 import android.os.Message;
 12 import android.view.WindowManager;
 13 
 14 import com.example.mpchart.data.IDataSource;
 15 import com.example.mpchart.data.IDataSource.onDataChangedListener;
 16 import com.example.mpchart.data.SucRateDataSource;
 17 import com.example.mpchart.utils.DBHelper;
 18 import com.example.mpchart.utils.DateUtils;
 19 import com.example.mpchart.utils.LogUtils;
 20 import com.github.mikephil.charting.charts.LineChart;
 21 import com.github.mikephil.charting.components.Legend;
 22 import com.github.mikephil.charting.components.Legend.LegendDirection;
 23 import com.github.mikephil.charting.components.Legend.LegendForm;
 24 import com.github.mikephil.charting.components.LimitLine;
 25 import com.github.mikephil.charting.components.LimitLine.LimitLabelPosition;
 26 import com.github.mikephil.charting.components.XAxis;
 27 import com.github.mikephil.charting.components.XAxis.XAxisPosition;
 28 import com.github.mikephil.charting.components.YAxis;
 29 import com.github.mikephil.charting.components.YAxis.YAxisLabelPosition;
 30 import com.github.mikephil.charting.data.Entry;
 31 import com.github.mikephil.charting.data.LineData;
 32 import com.github.mikephil.charting.data.LineDataSet;
 33 
 34 public class MainActivity extends Activity {
 35 
 36     private static final String TAG = "MainActivity";
 37 
 38     private LineChart mChart;
 39     private IDataSource mDataSource = new SucRateDataSource();
 40 
 41     private Handler mHandler = new Handler(Looper.getMainLooper()) {
 42         @Override
 43         public void handleMessage(Message msg) {
 44             super.handleMessage(msg);
 45             getData();
 46         }
 47     };
 48 
 49     @Override
 50     protected void onCreate(Bundle savedInstanceState) {
 51         super.onCreate(savedInstanceState);
 52         getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
 53                 WindowManager.LayoutParams.FLAG_FULLSCREEN);
 54         setContentView(R.layout.activity_main);
 55 
 56         mChart = (LineChart) findViewById(R.id.chart1);
 57 
 58 //      //在chart上的右下角加描述
 59         mChart.setDescription(mDataSource.getDescription());
 60         mChart.setDescriptionTextSize(30);
 61 //      //设置Y轴上的单位
 62 //      mChart.setUnit("%"); 
 63         //设置透明度
 64 //      mChart.setAlpha(0.8f);
 65         //设置网格底下的那条线的颜色
 66 //      mChart.setBorderColor(Color.rgb(213, 216, 214));
 67 //      mChart.setBorderColor(Color.rgb(0, 0, 0));
 68 //      mChart.setBackgroundColor(Color.rgb(255, 255, 255));
 69         mChart.setGridBackgroundColor(Color.rgb(255, 255, 255));
 70 
 71         //设置Y轴前后倒置
 72 //        mChart.setInvertYAxisEnabled(false);
 73 //        //设置高亮显示
 74 //        mChart.setHighlightEnabled(true);
 75         //设置是否可以触摸，如为false，则不能拖动，缩放等
 76         mChart.setTouchEnabled(true);
 77         //设置是否可以拖拽，缩放
 78         mChart.setDragEnabled(true);
 79         mChart.setScaleEnabled(true);
 80         //设置是否能扩大扩小
 81         mChart.setPinchZoom(true);
 82         // 设置背景颜色
 83 //         mChart.setBackgroundColor(Color.GRAY);
 84         //设置点击chart图对应的数据弹出标注
 85         MyMarkerView mv = new MyMarkerView(this, R.layout.custom_marker_view);
 86         // define an offset to change the original position of the marker
 87         // (optional)
 88 //        mv.setOffsets(-mv.getMeasuredWidth() / 2, -mv.getMeasuredHeight());
 89 //        mv.setMinimumHeight(80);
 90 //        // set the marker to the chart
 91 //        mChart.setMarkerView(mv);
 92 //        // enable/disable highlight indicators (the lines that indicate the
 93 //        // highlighted Entry)
 94 //        mChart.setHighlightIndicatorEnabled(false);
 95         //设置字体格式，如正楷
 96         Typeface tf = Typeface.createFromAsset(getAssets(), "OpenSans-Regular.ttf");
 97         mChart.setDescriptionTypeface(tf);
 98 
 99         LimitLine ll1 = new LimitLine(95f, "警戒值 95%");
100         ll1.setLineWidth(2f);
101 //        ll1.setLineColor(Color.rgb(0,0,0));
102 //        ll1.enableDashedLine(10f, 10f, 0f);
103         ll1.setLabelPosition(LimitLabelPosition.LEFT_TOP);
104         ll1.setTextSize(15f);
105         ll1.setTypeface(tf);
106 
107         XAxis xl = mChart.getXAxis();
108 //      xl.setAvoidFirstLastClipping(true);
109 //      xl.setAdjustXLabels(true);
110         xl.setPosition(XAxisPosition.BOTTOM); // 设置X轴的数据在底部显示
111         xl.setTypeface(tf); // 设置字体
112         xl.setTextSize(10f); // 设置字体大小
113         xl.setSpaceBetweenLabels(0); // 设置数据之间的间距'
114 
115         YAxis yl = mChart.getAxisLeft();
116         yl.setPosition(YAxisLabelPosition.OUTSIDE_CHART);
117 //      yl.setAxisMaxValue(220f);
118         yl.addLimitLine(ll1);
119         yl.setTypeface(tf); // 设置字体
120         yl.setTextSize(10f); // s设置字体大小
121         yl.setTypeface(tf); 
122         yl.setAxisMinValue(90f);
123         yl.setStartAtZero(false);
124 //      yl.setLabelCount(5); // 设置Y轴最多显示的数据个数
125 
126         YAxis y2 = mChart.getAxisRight();
127         y2.setPosition(YAxisLabelPosition.OUTSIDE_CHART);
128         y2.setTypeface(tf); // 设置字体
129         y2.setTextSize(10f); // s设置字体大小
130         y2.setTypeface(tf); 
131         y2.setAxisMinValue(90f);
132         y2.setStartAtZero(false);
133         getData();
134         new Thread(mRunnable).start();
135     }
136 
137     private Runnable mRunnable = new Runnable() {
138         @Override
139         public void run() {
140             while(true) {
141                   try {
142                        Thread.sleep(15*1000);//每隔15s刷新一次，可以看到动态图
143                        mHandler.sendMessage(mHandler.obtainMessage());
144                    } catch (InterruptedException e) {
145                        e.printStackTrace();
146                   }
147                   }
148         }
149     };
150 
151     private onDataChangedListener listener = new onDataChangedListener() {
152         @Override
153         public void onChanged(String[] xx, String[] yy) {
154             notifyDataChanged(xx, yy);
155         }
156 
157     };
158 
159     private void getData() {
160         LogUtils.d(TAG, "getData() " + DateUtils.getCurrentDate()); 
161         new Thread(new Runnable() {
162             @Override
163             public void run() {
164                 DBHelper.getInstance().init();
165                 String sql = "select *from suc_rate_chart_0614";
166                 final String[] xx = DBHelper.getInstance().query(sql,2); 
167                 final String[] yy = DBHelper.getInstance().query(sql,3); 
168                 mHandler.post(new Runnable() {
169                     @Override
170                     public void run() {
171                         listener.onChanged(xx, yy);
172                     }
173                 });
174             }
175         }).start();
176     }
177 
178     private void notifyDataChanged(String[] xx, String[] yy) {
179         Typeface tf = Typeface.createFromAsset(getAssets(),"OpenSans-Regular.ttf");
180        // 加载数据
181         setData(xx,yy );
182         //从X轴进入的动画
183         mChart.animateX(2000);
184 //        mChart.animateY(2000);   //从Y轴进入的动画
185 //        mChart.animateXY(2000, 2000);    //从XY轴一起进入的动画
186 
187         //设置最小的缩放
188          mChart.setScaleMinima(0.5f, 1f);
189         //设置视口
190         // mChart.centerViewPort(10, 50);
191 
192         // get the legend (only possible after setting data)
193         Legend l = mChart.getLegend();
194         l.setForm(LegendForm.CIRCLE);  //设置图最下面显示的类型
195         l.setTypeface(tf);  
196         l.setTextSize(30);
197         l.setTextColor(Color.rgb(244, 117, 117));
198         l.setDirection(LegendDirection.LEFT_TO_RIGHT);
199         l.setYOffset(100);
200         l.setFormSize(20f); // set the size of the legend forms/shapes
201 
202         // 刷新图表
203         mChart.invalidate();
204     }
205 
206     private void setData(String[] xx, String[] yy) {
207 
208         ArrayList<String> xVals = new ArrayList<String>();
209         for (int i = 0; i < xx.length; i++) {
210             xVals.add(xx[i]);
211         }
212 
213         ArrayList<Entry> yVals = new ArrayList<Entry>();
214 
215         for (int i = 0; i < yy.length; i++) {
216             yVals.add(new Entry(Float.parseFloat(yy[i]), i));
217             LogUtils.d(TAG, "yVals() " + Float.parseFloat(yy[i])); 
218         }
219 
220         // create a dataset and give it a type
221         LineDataSet set1 = new LineDataSet(yVals, "成功率监控");
222 
223         set1.setDrawCubic(false);  //设置曲线为圆滑的线
224         set1.setCubicIntensity(0.2f);
225         set1.setDrawFilled(false);  //设置包括的范围区域填充颜色
226         set1.setDrawCircles(true);  //设置有圆点
227         set1.setLineWidth(2f);    //设置线的宽度
228         set1.setCircleSize(5f);   //设置小圆的大小
229         set1.setHighLightColor(Color.rgb(244, 117, 117));
230         set1.setColor(Color.rgb(244, 117, 117));    //设置曲线的颜色
231 
232         // create a data object with the datasets
233         LineData data = new LineData(xVals, set1);
234 
235         // set data
236         mChart.setData(data);
237     }
238 }

 

MpChart效果

这里写图片描述

posted @ 2016-11-23 18:56  火龙裸先生  阅读(7443)  评论(0)  编辑  收藏  举报