这个方法是画出来的，没有使用那个图表包achartengine-1.0.0.jar
ChartView.java
package com.example.chardemo_31;import android.content.Context;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.view.View;public class ChartView extends View{ public int XPoint = 50; // 原点的X坐标 public int YPoint = 460; // 原点的Y坐标 public int XScale = 55; // X的刻度长度 public int YScale = 40; // Y的刻度长度 public int XLength = 380; // X轴的长度 public int YLength = 240; // Y轴的长度 public String[] XLabel; // X的刻度 public String[] YLabel; // Y的刻度 public String[] Data; // 数据 public String Title; // 显示的标题 public ChartView(Context context)//必须建立的构造器 { super(context); } //建立一个方法 可以传入X轴的刻度数组 Y轴的刻度数组 所有数据 标题名称 public void setInfo(String[] XLabels, String[] YLabels, String[] AllData,String strTitle){ XLabel = XLabels; YLabel = YLabels; Data = AllData; Title = strTitle; } //覆写绘制方法 @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas);//重写onDraw方法 Paint paint = new Paint();//建立画笔 canvas是画布 paint.setStyle(Paint.Style.STROKE);//风格空心 paint.setAntiAlias(true);//去锯齿 paint.setColor(Color.BLACK);// 颜色 Paint paint1 = new Paint(); paint1.setStyle(Paint.Style.STROKE); paint1.setAntiAlias(true);// 去锯齿 paint1.setColor(Color.DKGRAY); paint.setTextSize(12); // 设置轴文字大小 // 设置Y轴 //canvas.drawLine(startX, startY, stopX, stopY, paint1) canvas.drawLine(XPoint, YPoint - YLength, XPoint, YPoint, paint); // Y轴线 for (int i = 0; i * YScale < YLength; i++) { canvas.drawLine(XPoint, YPoint - i * YScale, XPoint + 5, YPoint - i * YScale, paint); // 刻度 try {// canvas.drawText(text, x, y, paint1) canvas.drawText(YLabel[i], XPoint - 22,YPoint - i * YScale + 5, paint); // 文字 } catch (Exception e) { } } canvas.drawLine(XPoint, YPoint - YLength, XPoint - 3, YPoint - YLength+ 6, paint); // 箭头 canvas.drawLine(XPoint, YPoint - YLength, XPoint + 3, YPoint - YLength+ 6, paint); // 设置X轴 canvas.drawLine(XPoint, YPoint, XPoint + XLength, YPoint, paint); // 轴线 for (int i = 0; i * XScale < XLength; i++) { canvas.drawLine(XPoint + i * XScale, YPoint, XPoint + i * XScale,YPoint - 5, paint); // 刻度 try { canvas.drawText(XLabel[i], XPoint + i * XScale - 10,YPoint + 20, paint); // 文字 // 数据值 if (i > 0 && YCoord(Data[i - 1]) != -999 && YCoord(Data[i]) != -999) // 保证有效数据 canvas.drawLine(XPoint + (i - 1) * XScale,YCoord(Data[i - 1]), XPoint + i * XScale,YCoord(Data[i]), paint); canvas.drawCircle(XPoint + i * XScale, YCoord(Data[i]), 2,paint); } catch (Exception e) { } } canvas.drawLine(XPoint + XLength, YPoint, XPoint + XLength - 6,YPoint - 3, paint); // 箭头 canvas.drawLine(XPoint + XLength, YPoint, XPoint + XLength - 6,YPoint + 3, paint); paint.setTextSize(16); canvas.drawText(Title, 200, 160, paint); } private int YCoord(String y0) // 计算绘制时的Y坐标，无数据时返回-999 { int y; try { y = Integer.parseInt(y0); } catch (Exception e) { return -999; // 出错则返回-999 } try { return YPoint - y * YScale / Integer.parseInt(YLabel[1]); } catch (Exception e) { } return y; } } MainActivity.java
package com.example.chardemo_31;import android.os.Bundle;import android.app.Activity;import android.view.Menu;public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ChartView chartView = new ChartView(this); chartView.setInfo(new String[]{"5-10", "5-11","5-12","5-13","5-14","5-15"}, new String[] { "", "50", "100", "150", "200", "250" }, // Y轴刻度, new String[] { "15", "23", "120", "16", "145", "40", "12" }, // 数据 "Test"); setContentView(chartView); } } 
这是在低分辨率下的情况，暂时不知道怎么该怎么办，同时任务需要生成日期，画2条线，也没有头绪