package com.example.mycharttest;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Date;
import java.util.Random;
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.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
public class RtChartsActivity extends Activity {
private int b ;
private DatagramSocket socket;
private DatagramPacket packet;
private Timer timer = new Timer();
private GraphicalView chart;
private TextView textview;
private TimerTask task;
private int addY = -1;
private long addX;
/** 曲线数量 */
private static final int SERIES_NR = 1;
private static final String TAG = "message";
private TimeSeries series1;
private XYMultipleSeriesDataset dataset1;
private Handler handler;
private Random random = new Random();
/** 时间数据 */
Date[] xcache = new Date[20];
/** 数据 */
int[] ycache = new int[20];
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.rtchart);
LinearLayout layout = (LinearLayout) findViewById(R.id.linearlayout);
// 生成图表
chart = ChartFactory.getTimeChartView(this, getDateDemoDataset(),
getDemoRenderer(), "hh:mm:ss");
layout.addView(chart, new LayoutParams(LayoutParams.WRAP_CONTENT, 380));
// 为TextView添加事件
textview = (TextView) findViewById(R.id.myview);
textview.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(RtChartsActivity.this, "ceshiview", 1).show();
Intent intent = new Intent();
intent.setClass(RtChartsActivity.this, MainActivity.class);
startActivity(intent);
}
});
handler = new Handler() {
@Override
public void handleMessage(Message msg) {
// 刷新图表
updateChart();
super.handleMessage(msg);
}
};
task = new TimerTask() {
@Override
public void run() {
Message message = new Message();
message.what = 200;
handler.sendMessage(message);
}
};
timer.schedule(task, 2 * 1000, 1000);
}
private void updateChart() {
// 设定长度为20
int length = series1.getItemCount();
if (length >= 20)
length = 20;
receive();
addY = random.nextInt()%10;
addX = b;
// 将前面的点放入缓存
for (int i = 0; i < length; i++) {
xcache[i] = new Date((long) series1.getX(i));
ycache[i] = (int) series1.getY(i);
}
series1.clear();
// 将新产生的点首先加入到点集中，然后在循环体中将坐标变换后的一系列点都重新加入到点集中
series1.add(new Date(addX), addY);
for (int k = 0; k < length; k++) {
series1.add(xcache[k], ycache[k]);
}
// 在数据集中添加新的点集
dataset1.removeSeries(series1);
dataset1.addSeries(series1);
// 曲线更新
chart.invalidate();
}
public void receive() {
try {
socket = new DatagramSocket(4444);
byte data[] = new byte[1024];
packet = new DatagramPacket(data, data.length);
socket.receive(packet);
String result = new String(packet.getData(),packet.getOffset(),packet.getLength());
b=Integer.parseInt(result);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 设定如表样式
*
* @return
*/
private XYMultipleSeriesRenderer getDemoRenderer() {
XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
renderer.setChartTitle("实时曲线");// 标题
renderer.setChartTitleTextSize(20);
renderer.setXTitle("时间"); // x轴说明
renderer.setAxisTitleTextSize(16);
renderer.setAxesColor(Color.BLACK);
renderer.setLabelsTextSize(15); // 数轴刻度字体大小
renderer.setLabelsColor(Color.BLACK);
renderer.setLegendTextSize(15); // 曲线说明
renderer.setXLabelsColor(Color.BLACK);
renderer.setYLabelsColor(0, Color.BLACK);
renderer.setShowLegend(false);
renderer.setMargins(new int[] { 20, 30, 100, 0 });
XYSeriesRenderer r = new XYSeriesRenderer();
r.setColor(Color.BLUE);
r.setChartValuesTextSize(15);
r.setChartValuesSpacing(3);
r.setPointStyle(PointStyle.CIRCLE);
r.setFillBelowLine(true);
r.setFillBelowLineColor(Color.WHITE);
r.setFillPoints(true);
renderer.addSeriesRenderer(r);
renderer.setMarginsColor(Color.WHITE);
renderer.setPanEnabled(false, false);
renderer.setShowGrid(true);
renderer.setYAxisMax(50);
renderer.setYAxisMin(-30);
renderer.setInScroll(true); // 调整大小
return renderer;
}
/**
* 数据对象
*
* @return
*/
private XYMultipleSeriesDataset getDateDemoDataset() {
dataset1 = new XYMultipleSeriesDataset();
final int nr = 1;
long value = new Date().getTime();
Random r = new Random();
for (int i = 0; i < SERIES_NR; i++) {
series1 = new TimeSeries("Demo series " + (i + 1));
for (int k = 0; k < nr; k++) {
series1.add(new Date(value + k * 1000), 0);
}
dataset1.addSeries(series1);
}
Log.i(TAG, dataset1.toString());
return dataset1;
}
@Override
public void onDestroy() {
// 当结束程序时关掉Timer
timer.cancel();
super.onDestroy();
};
}
