achartengine一个布局中多条动态折线图实时更新效果

package com.example.chenwifi;

import java.util.Date;

import java.util.Timer;

import java.util.TimerTask;

import org.achartengine.ChartFactory;

import org.achartengine.GraphicalView;

import org.achartengine.chart.PointStyle;

import org.achartengine.model.TimeSeries;

import org.achartengine.model.XYMultipleSeriesDataset;

import org.achartengine.renderer.XYMultipleSeriesRenderer;

import org.achartengine.renderer.XYSeriesRenderer;

import android.view.ViewGroup.LayoutParams;

import android.annotation.SuppressLint;

import android.app.Activity;

import android.content.Context;

import android.graphics.Color;

import android.graphics.Paint.Align;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.widget.LinearLayout;

import android.widget.TextView;

@SuppressLint("HandlerLeak")

public class Jiasudu extends Activity {

private long addx;

private float addy1,addy2,addy3;

Date[] x1= new Date[5];

Float[]  y1 =new  Float[5];

Date[] x2= new Date[5];

Float[]  y2 =new  Float[5];

Date[] x3= new Date[5];

Float[]  y3 =new  Float[5];

TextView jiax,jiay,jiaz;

Handler handler,handler2;

LinearLayout layout ;

GraphicalView chart ;

private Context context;

private XYMultipleSeriesDataset dataset1;

TimeSeries series1,series2,series3;

Timer time = new Timer();

TimerTask task;

private String title[]={"X方向加速度","Y方向加速度","Z方向加速度"};

protected void onCreate(Bundle savedInstanceState){

 super.onCreate(savedInstanceState);