achartengine如何實現平行線、動態數據、x軸動態移動

小編給大家分享一下achartengine如何實現平行線、動態數據、x軸動態移動，希望大家閱讀完這篇文章之后都有所收獲，下面讓我們一起去探討吧！

achartengine做平行線的時候經常會遇到:

java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1

at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)

at org.achartengine.renderer.DefaultRenderer.getSeriesRendererAt(DefaultRenderer.java:189)

at org.achartengine.chart.XYChart.draw(XYChart.java:240)

at org.achartengine.GraphicalView.onDraw(GraphicalView.java:168)

***在stackoverflow找到了答案：1個數據就要用一個XYSeriesRenderer 所以兩條平行線就要用2個XYSeriesRenderer

***效果圖:

 1 package com.example.achartparallel;   2    3    4 import com.example.achartparallel.XYRenderer;   5    6    7 import java.math.BigDecimal;   8 import java.text.DecimalFormat;   9   10 import org.achartengine.ChartFactory;  11 import org.achartengine.GraphicalView;  12 import org.achartengine.chart.PointStyle;  13 import org.achartengine.model.XYMultipleSeriesDataset;  14 import org.achartengine.model.XYSeries;  15 import org.achartengine.renderer.XYMultipleSeriesRenderer;  16 import org.achartengine.renderer.XYSeriesRenderer;  17   18   19 import android.app.Activity;  20 import android.app.AlertDialog;  21 import android.content.Context;  22 import android.content.DialogInterface;  23 import android.content.Intent;  24 import android.graphics.Color;  25 import android.os.Bundle;  26 import android.os.Handler;  27 import android.os.Message;  28 import android.view.LayoutInflater;  29 import android.view.Menu;  30 import android.view.MenuItem;  31 import android.view.View;  32 import android.view.View.OnClickListener;  33 import android.view.ViewGroup.LayoutParams;  34 import android.view.Window;  35 import android.view.WindowManager;  36 import android.widget.Button;  37 import android.widget.EditText;  38 import android.widget.LinearLayout;  39 import android.widget.TextView;  40 import android.widget.Toast;  41   42 public class MainActivity extends Activity {  43   44       45     private XYSeries xyseries;//數據  46     private XYSeries xyseries_up;//上平行線  47     private XYSeries xyseries_down;//下平行線  48     private XYMultipleSeriesDataset dataset;  49     private GraphicalView chartview;  50     private XYMultipleSeriesRenderer renderer;  51     private XYSeriesRenderer datarenderer;  52     private XYSeriesRenderer datarenderer_up;  53     private XYSeriesRenderer datarenderer_down;  54     private Context context;  55      56     int i=0;  57     Thread t;  58     private int addX ;  59     private double addY ;  60     int X_MAX=10;//x軸***值  61       62     //標準和閾值  63     double value=10 ;//平行線中間值  64     double bound=0.5;//上下限 可以自己隨意設定  65     protected void onCreate(Bundle savedInstanceState) {  66         super.onCreate(savedInstanceState);  67         requestWindowFeature(Window.FEATURE_NO_TITLE); //無title  68         setContentView(R.layout.activity_main);  69         LinearLayout chart_layout1 = (LinearLayout)findViewById(R.id.chart_layout1);  70         chart_layout1.setBackgroundColor(Color.BLACK);  71           72           73          //No.1 設定大渲染器的屬性 太多了 所以寫了個類  74         renderer=new XYRenderer("零件", "X軸(單位:id)", "Y軸(mm)",  75                 0,X_MAX, -1, 1, Color.GRAY, Color.LTGRAY,  76                 16,16,10,15,20,10,true);  77         dataset=new XYMultipleSeriesDataset();  78         datarenderer=new XYSeriesRenderer();  79         datarenderer.setDisplayChartValues(true);  80         xyseries=new XYSeries("零件");  81         //2  82         xyseries.add(0, 0);//先輸入一個數據讓它繪出renderer  83         //3  84         dataset.addSeries(0,xyseries);  85         datarenderer.setColor(Color.GREEN);  86         datarenderer.setPointStyle(PointStyle.POINT);  87         //4  88         renderer.addSeriesRenderer(datarenderer);  89           90         //5  91         context = getApplicationContext();  92         chartview = ChartFactory.getLineChartView(context, dataset, renderer);  93         chart_layout1.addView(chartview, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));  94           95         //設置按鈕 用來記錄尺寸的標準(value)和閾值(bound),然后再主界面顯示出紅線  96           97                         //繪出兩條紅線 分別用新的XYSeriesRenderer要不然會報錯  98                         xyseries_up=new XYSeries("閾值1");  99                         xyseries_down=new XYSeries("閾值2"); 100                         xyseries_up.add(0 , value+bound); 101                         xyseries_up.add(X_MAX*2, value+bound); 102                         xyseries_down.add(0, value-bound); 103                         xyseries_down.add(X_MAX*2,value-bound); 104                         dataset.addSeries(1,xyseries_up); 105                         dataset.addSeries(2,xyseries_down); 106                         datarenderer_up = new XYSeriesRenderer(); 107                         datarenderer_down = new XYSeriesRenderer(); 108                         datarenderer_up.setColor(Color.RED); 109                         datarenderer_down=datarenderer_up; 110                         renderer.addSeriesRenderer(datarenderer_up); 111                         renderer.addSeriesRenderer(datarenderer_down); 112                         renderer.setYAxisMin(value-(4*bound));// Y最小值 113                         renderer.setYAxisMax(value+(4*bound));// Y最小值 114                         //設置chart的視圖范圍  參數//1x->start 2max 3y->start 4max  115                         renderer.setRange(new double[]{0d, (double)X_MAX, value-(4*bound), value+(4*bound)}); 116                       //  chartview.repaint(); 117                118                         119  120  121          122         123          124      125          t=new Thread (r1);  126              t.start();  127          128     }//oncreate end 129  130     //handler處理UI更新 131     Handler myhandler=new Handler() 132     { 133  134         @Override 135         public void handleMessage(Message msg) { 136             super.handleMessage(msg); 135//可以處理些數據 142              chartview.repaint(); 143         } 144  145          146     }; 147      148  149         Runnable r1=new Runnable() { 150             BigDecimal b; 151  152         public void run(){ 153             try { 154                 while(true) 155                 { 156                 i++; 157                 Thread.sleep(500); 158                 addX = i; 159                  //設置好下一個需要增加的節點 隨機產生 在value+-bound左右 160                 b =new BigDecimal(((Math.random())*bound*4)-(2*bound));  //轉換 161                 addY=b.setScale(3, BigDecimal.ROUND_HALF_UP).doubleValue(); 162                 //double+double再轉一次 163                 b =new BigDecimal(addY+value); //保留三位小數 四舍五入 164                 addY=b.setScale(3, BigDecimal.ROUND_HALF_UP).doubleValue(); 165                      166                 //傳給hanlder 167                  Message message=new Message();   168                  Bundle bundle=new Bundle();   169                  bundle.putString("part_id1", "編號:"+addX);   170                  bundle.putString("part_size1", "尺寸:"+addY);  171                  message.setData(bundle);//bundle傳值，耗時，效率低   172                  myhandler.sendMessage(message);//發送message信息   173                  message.what=1;//標志是哪個線程傳數據   174                   175                   176                  //步驟不能變 1先清除數據 2添加源數據 3添加數據 177                  dataset.removeSeries(xyseries); 178                  xyseries.add(addX, addY); 179                  dataset.addSeries(0,xyseries); 180                  //chartview.repaint(); 181                  chartview.postInvalidate(); 182                   183                   184                  if(i*2>X_MAX)//延長X_MAX造成右移效果 185                  { 186                      X_MAX*=2;//按2倍速度延長 可以設置成speed 187                      renderer.setXAxisMax(X_MAX);// 設置X***值 188                      dataset.removeSeries(xyseries_up); 189                      dataset.removeSeries(xyseries_down); 190                      xyseries_up.add(X_MAX/2 , value+bound); 191                      xyseries_up.add(X_MAX, value+bound); 192                      xyseries_down.add(X_MAX/2, value-bound); 193                      xyseries_down.add(X_MAX,value-bound); 194                      dataset.addSeries(1,xyseries_up); 195                      dataset.addSeries(2,xyseries_down); 196 //                     datarenderer_up = new XYSeriesRenderer(); 197 //                     datarenderer_down = new XYSeriesRenderer(); 198 //                     datarenderer_up.setColor(Color.RED); 199 //                     datarenderer_down=datarenderer_up; 200                      renderer.addSeriesRenderer(datarenderer_up); 201                      renderer.addSeriesRenderer(datarenderer_down); 202                  } 203                   204                   205                 } 206             } catch (InterruptedException e) { 207                 e.printStackTrace(); 208             } 209            210          } 211         }; 212         @Override 213         protected void onDestroy() { 214             t.interrupt(); 215             System.out.println("destory"); 216             super.onDestroy(); 217         } 218       219      220 }

 1 package com.example.achartparallel; 
 2  
 3 import org.achartengine.renderer.XYMultipleSeriesRenderer; 
 4  
 5 public class XYRenderer extends XYMultipleSeriesRenderer  
 6 { 
 7     //圖表樣式構造器 
 8     public XYRenderer() 
 9     { 
10          
11     } 
12     public XYRenderer( 
13             String title, String xTitle, String yTitle, double xMin, 
14             double xMax, double yMin, double yMax, int axesColor, 
15             int labelsColor,int XTitleTextSize,int ChartTitleTextSize, 
16             int LabelsTextSize,int LegendTextSize,int Xshow,int Yshow, 
17             boolean ShowGrid)  
18     { 
19         this.setChartTitle(title); 
20         this.setXTitle(xTitle);// X軸標題 
21         this.setYTitle(yTitle);// Y軸標題 
22         this.setXAxisMin(xMin);// X最小值 
23         this.setXAxisMax(xMax);// X***值 
24         this.setYAxisMin(yMin);// Y最小值 
25         this.setYAxisMax(yMax);// Y最小值 
26         this.setAxesColor(axesColor);// X軸顏色 
27         this.setLabelsColor(labelsColor);// Y軸顏色 
28         this.setAxisTitleTextSize(XTitleTextSize); // 坐標軸標題字體大小：16 
29         this.setChartTitleTextSize(ChartTitleTextSize); // 圖表標題字體大小：20 
30         this.setLabelsTextSize(LabelsTextSize); // 軸標簽字體大小：10 
31         this.setLegendTextSize(LegendTextSize); // 圖例字體大小：15 
32         this.setXLabels(Xshow);//設置X軸顯示的刻度標簽的個數 
33         this.setYLabels(Yshow);//設置Y軸顯示的刻度標簽的個數 
34         this.setShowGrid(ShowGrid); // 設置網格顯示 
35      
36          
37     } 
38  
39 } 

 1  <LinearLayout 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     android:paddingBottom="@dimen/activity_vertical_margin"  6     android:paddingLeft="@dimen/activity_horizontal_margin"  7     android:paddingRight="@dimen/activity_horizontal_margin"  8     android:paddingTop="@dimen/activity_vertical_margin"  9     tools:context="com.example.achartparallel.MainActivity" 10      android:id="@+id/chart_layout1" > 11  12      13  14 </LinearLayout>

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