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最牛逼android上的图表库MpChart（三）条形图

最牛逼android上的图表库MpChart三条形图

最牛逼android上的图表库MpChart（三）条形图

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

附上mpandroidchartlibrary-2-1-6.jar的下载链接：http://download.csdn.net/detail/hejjunlin/9561829

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’
}

BarChart条形图介绍

BarChart类
使用哪些API

BarChart条形图实例

布局文件
Java代码

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent" >
 5 
 6     <com.github.mikephil.charting.charts.BarChart
 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 import java.util.List;
  5 
  6 import android.annotation.SuppressLint;
  7 import android.app.Activity;
  8 import android.graphics.Color;
  9 import android.graphics.PointF;
 10 import android.graphics.RectF;
 11 import android.graphics.Typeface;
 12 import android.os.Bundle;
 13 import android.os.Handler;
 14 import android.os.Looper;
 15 import android.os.Message;
 16 import android.util.Log;
 17 import android.view.WindowManager;
 18 
 19 import com.example.mpchart.data.ErrorCodePercentDataSource;
 20 import com.example.mpchart.data.IDataSource;
 21 import com.example.mpchart.data.IDataSource.onDataChangedListener;
 22 import com.example.mpchart.utils.DBHelper;
 23 import com.example.mpchart.utils.DateUtils;
 24 import com.example.mpchart.utils.LogUtils;
 25 import com.github.mikephil.charting.charts.BarChart;
 26 import com.github.mikephil.charting.components.Legend;
 27 import com.github.mikephil.charting.components.Legend.LegendDirection;
 28 import com.github.mikephil.charting.components.Legend.LegendForm;
 29 import com.github.mikephil.charting.components.Legend.LegendPosition;
 30 import com.github.mikephil.charting.components.XAxis;
 31 import com.github.mikephil.charting.components.XAxis.XAxisPosition;
 32 import com.github.mikephil.charting.components.YAxis;
 33 import com.github.mikephil.charting.components.YAxis.AxisDependency;
 34 import com.github.mikephil.charting.components.YAxis.YAxisLabelPosition;
 35 import com.github.mikephil.charting.data.BarData;
 36 import com.github.mikephil.charting.data.BarDataSet;
 37 import com.github.mikephil.charting.data.BarEntry;
 38 import com.github.mikephil.charting.data.Entry;
 39 import com.github.mikephil.charting.formatter.YAxisValueFormatter;
 40 import com.github.mikephil.charting.highlight.Highlight;
 41 import com.github.mikephil.charting.listener.OnChartValueSelectedListener;
 42 import com.github.mikephil.charting.utils.ColorTemplate;
 43 
 44 public class BarChartActivity extends Activity implements OnChartValueSelectedListener {
 45 
 46     private static final String TAG = "BarChartActivity";
 47     protected BarChart mChart;
 48     private IDataSource mDataSource = new ErrorCodePercentDataSource();
 49     private String mDateTime;
 50 
 51     private Typeface mTf;
 52 
 53     private Handler mHandler = new Handler(Looper.getMainLooper()) {
 54         @Override
 55         public void handleMessage(Message msg) {
 56             super.handleMessage(msg);
 57             getData();
 58         }
 59     };
 60 
 61     @Override
 62     protected void onCreate(Bundle savedInstanceState) {
 63         super.onCreate(savedInstanceState);
 64         getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
 65         setContentView(R.layout.activity_barchart);
 66 
 67         mChart = (BarChart) findViewById(R.id.chart1);
 68         mChart.setOnChartValueSelectedListener(this);
 69         mChart.setDescription(""/*mDataSource.getDescription()*/);
 70         mChart.setDescriptionTextSize(30);
 71 //        mChart.setDescriptionPosition(960, 550);
 72 
 73         mChart.setDrawBarShadow(false);
 74         mChart.setDrawValueAboveBar(true);
 75 
 76         // if more than 60 entries are displayed in the chart, no values will be
 77         // drawn
 78         mChart.setMaxVisibleValueCount(60);
 79 
 80         // scaling can now only be done on x- and y-axis separately
 81         mChart.setPinchZoom(false);
 82 
 83         mChart.setDrawGridBackground(false);
 84         // mChart.setDrawYLabels(false);
 85 
 86         mTf = Typeface.createFromAsset(getAssets(), "OpenSans-Regular.ttf");
 87 
 88         XAxis xAxis = mChart.getXAxis();
 89         xAxis.setPosition(XAxisPosition.BOTTOM);
 90         xAxis.setTypeface(mTf);
 91         xAxis.setDrawGridLines(false);
 92         xAxis.setSpaceBetweenLabels(2);
 93 
 94         YAxisValueFormatter custom = new MyYAxisValueFormatter();//设置Y轴上的显示单位
 95 
 96         YAxis leftAxis = mChart.getAxisLeft();
 97         leftAxis.setTypeface(mTf);
 98         leftAxis.setLabelCount(8, false);
 99         leftAxis.setValueFormatter(custom);
100         leftAxis.setPosition(YAxisLabelPosition.OUTSIDE_CHART);
101         leftAxis.setSpaceTop(15f);
102         leftAxis.setAxisMinValue(0f); // this replaces setStartAtZero(true)
103 
104         YAxis rightAxis = mChart.getAxisRight();
105         rightAxis.setDrawGridLines(false);
106         rightAxis.setTypeface(mTf);
107         rightAxis.setLabelCount(8, false);
108         rightAxis.setValueFormatter(custom);
109         rightAxis.setSpaceTop(15f);
110         rightAxis.setAxisMinValue(0f); // this replaces setStartAtZero(true)
111 
112         Legend l = mChart.getLegend();
113         l.setPosition(LegendPosition.BELOW_CHART_LEFT);
114         l.setForm(LegendForm.SQUARE);
115         l.setFormSize(9f);
116         l.setTextSize(11f);
117         l.setXEntrySpace(4f);
118 
119         getData();
120         new Thread(mRunnable).start();
121         // mChart.setDrawLegend(false);
122     }
123 
124     private Runnable mRunnable = new Runnable() {
125         @Override
126         public void run() {
127             while(true) {
128                   try {
129                        Thread.sleep(15*1000);//15s刷新下数据
130                        mHandler.sendMessage(mHandler.obtainMessage());
131                    } catch (InterruptedException e) {
132                        e.printStackTrace();
133                   }
134                   }
135         }
136     };
137 
138     private onDataChangedListener listener = new onDataChangedListener() {
139 
140         @Override
141         public void onChanged(String[] xx, String[] yy) {
142             notifyDataChanged(xx, yy);
143         }
144     };
145 
146     private void getData() {
147         LogUtils.d(TAG, "getData() " + DateUtils.getCurrentDate()); 
148         new Thread(new Runnable() {
149             @Override
150             public void run() {
151                 DBHelper.getInstance().init();
152                 String table = "error_info_" + DateUtils.get2HoursDate();
153                 String sql = "select *from " + table + " limit 20"/* + DateUtils.get2HoursDate()*/;
154                 boolean isexist = DBHelper.getInstance().isTableExist(table);
155                 if (isexist) {
156                     mDateTime = DateUtils.get2HoursDate();
157                     final String[] xx = DBHelper.getInstance().query(sql,3); 
158                     final String[] yy = DBHelper.getInstance().query(sql,5);
159                     mHandler.post(new Runnable() {
160                         @Override
161                         public void run() {
162                             listener.onChanged(xx, yy);
163                         }
164                     });
165                 } else {
166                     String table2 = "error_info_" + DateUtils.getOneHoursAgoTime();
167                     mDateTime = DateUtils.getOneHoursAgoTime();
168                     String sql2 = "select *from " + table2 + " limit 20";
169                     LogUtils.d(TAG, "getData() sql2 " + sql2); 
170                     final String[] xx = DBHelper.getInstance().query(sql2,3); 
171                     final String[] yy = DBHelper.getInstance().query(sql2,5);
172                     mHandler.post(new Runnable() {
173                         @Override
174                         public void run() {
175                             listener.onChanged(xx, yy);
176                         }
177                     });
178                 }
179             }
180         }).start();
181     }
182 
183     private void notifyDataChanged(String[] xx, String[] yy) {
184         Typeface tf = Typeface.createFromAsset(getAssets(),"OpenSans-Regular.ttf");
185        // 加载数据
186         setData(xx,yy );
187         //从X轴进入的动画
188         mChart.animateX(2000);
189 //        mChart.animateY(2000);   //从Y轴进入的动画
190 //        mChart.animateXY(2000, 2000);    //从XY轴一起进入的动画
191 
192         //设置最小的缩放
193          mChart.setScaleMinima(0.5f, 1f);
194         //设置视口
195         // mChart.centerViewPort(10, 50);
196 
197         // get the legend (only possible after setting data)
198         Legend l = mChart.getLegend();
199         l.setForm(LegendForm.LINE);  //设置图最下面显示的类型
200         l.setTypeface(tf);  
201         l.setTextSize(30);
202         l.setTextColor(Color.rgb(244, 117, 117));
203         l.setDirection(LegendDirection.LEFT_TO_RIGHT);
204         l.setYOffset(660);
205         l.setFormSize(20f); // set the size of the legend forms/shapes
206 
207         // 刷新图表
208         mChart.invalidate();
209     }
210 
211     private void setData(String[] xx, String[] yy) {
212 
213         ArrayList<String> xVals = new ArrayList<String>();
214         for (int i = 0; i < xx.length; i++) {
215             xVals.add(xx[i]);
216         }
217 
218         ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();
219 
220         for (int i = 0; i < yy.length; i++) {
221             float y = Float.parseFloat(yy[i]);
222             yVals1.add(new BarEntry(y, i));//填充数据
223         }
224 
225         BarDataSet set1;
226         mChart.animateY(2000);//设置动画
227         set1 = new BarDataSet(yVals1, "DataSet");
228         set1.setBarSpacePercent(35f);
229         set1.setColors(ColorTemplate.LIBERTY_COLORS);
230 
231 
232         BarDataSet dataSets = new BarDataSet(yVals1, "错误码占比监控,数据来源： + mDateTime);
233         List<Integer> list = new ArrayList<Integer>();
234         list.add(Color.rgb(179, 48, 80));//设置颜色
235         list.add(Color.rgb(106, 167, 134));
236         list.add(Color.rgb(53, 194, 209));
237         list.add(Color.rgb(118, 174, 175));
238         list.add(Color.rgb(42, 109, 130));
239         list.add(Color.rgb(106, 150, 31));
240         list.add(Color.rgb(179, 100, 53));
241         list.add(Color.rgb(193, 37, 82));
242         list.add(Color.rgb(255, 102, 0));
243         list.add(Color.rgb(217, 80, 138));
244         list.add(Color.rgb(254, 149, 7));
245         list.add(Color.rgb(254, 247, 120));
246         dataSets.setColors(list);
247 
248         BarData data = new BarData(xVals, dataSets);
249         data.setValueTextSize(10f);
250         data.setValueTypeface(mTf);
251 
252         mChart.setData(data);
253     }
254 
255     @SuppressLint("NewApi")
256     @Override
257     public void onValueSelected(Entry e, int dataSetIndex, Highlight h) {
258 
259         if (e == null)
260             return;
261 
262         RectF bounds = mChart.getBarBounds((BarEntry) e);
263         PointF position = mChart.getPosition(e, AxisDependency.LEFT);
264 
265         Log.i("bounds", bounds.toString());
266         Log.i("position", position.toString());
267 
268         Log.i("x-index",
269                 "low: " + mChart.getLowestVisibleXIndex() + ", high: "
270                         + mChart.getHighestVisibleXIndex());
271     }
272 
273     public void onNothingSelected() {
274     };
275 }

BarChart效果

这里写图片描述

查看全文

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原文地址：https://www.cnblogs.com/huolongluo/p/6094833.html

最牛逼android上的图表库MpChart（三） 条形图

最牛逼android上的图表库MpChart（三） 条形图

BarChart条形图介绍

BarChart条形图实例

BarChart效果

最牛逼android上的图表库MpChart（三）条形图

最牛逼android上的图表库MpChart（三）条形图