package com.hmkcode.android;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import java.util.concurrent.atomic.AtomicBoolean;
import org.achartengine.ChartFactory;
import org.achartengine.GraphicalView;
import org.achartengine.chart.PointStyle;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.model.XYSeries;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import com.hmkcode.android.vo.Device;
import com.hmkcode.android.vo.ImageProcessing;
import com.hmkcode.android.vo.REST;
import com.hmkcode.android.TestHTTP;
import com.hmkcode.android.MonitorFrequencia.TYPE;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.graphics.Color;
import android.graphics.Paint.Align;
import android.hardware.Camera;
import android.hardware.Camera.PreviewCallback;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
public class MonitorFrequencia extends Activity{
private Timer timer = new Timer();
private TimerTask task;
private static int gx;
private static int j;
private static double flag = 1;
private Handler handler;
private String title = "pulse";
private XYSeries series;
private XYMultipleSeriesDataset mDataset;
private GraphicalView chart;
private XYMultipleSeriesRenderer renderer;
private Context context;
private int addX = -1;
double addY;
int[] xv = new int[300];
int[] yv = new int[300];
int[] hua=new int[]{9,10,11,12,13,14,13,12,11,10,9,8,7,6,7,8,9,10,11,10,10};
private static final AtomicBoolean processing = new AtomicBoolean(false);
private static SurfaceView preview = null;
private static SurfaceHolder previewHolder = null;
//Android�ֻ�������
private static Camera camera = null;
//private static View image = null;
private static TextView mTV_Heart_Rate = null;
private static TextView mTV_Avg_Pixel_Values = null;
private static TextView mTV_pulse = null;
private static WakeLock wakeLock = null;
private static int averageIndex = 0;
private static final int averageArraySize = 4;
private static final int[] averageArray = new int[averageArraySize];
private static int beatsAvg = 0;
private REST rest = new REST();
private Device device = new Device();
private static Boolean update = false;
public static enum TYPE {
GREEN, RED
};
private static TYPE currentType = TYPE.GREEN;
public static TYPE getCurrent() {
return currentType;
}
private static int beatsIndex = 0;
private static final int beatsArraySize = 3;
private static final int[] beatsArray = new int[beatsArraySize];
private static double beats = 0;
private static long startTime = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_monitor);
initConfig();
}
@SuppressWarnings("deprecation")
private void initConfig() {
context = getApplicationContext();
LinearLayout layout = (LinearLayout)findViewById(R.id.id_linearLayout_graph);
series = new XYSeries(title);
mDataset = new XYMultipleSeriesDataset();
mDataset.addSeries(series);
int color = Color.GREEN;
PointStyle style = PointStyle.CIRCLE;
renderer = buildRenderer(color, style, true);
setChartSettings(renderer, "X", "Y", 0, 300, 4, 16, Color.WHITE, Color.WHITE);
chart = ChartFactory.getLineChartView(context, mDataset, renderer);
layout.addView(chart, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
handler = new Handler() {
@Override
public void handleMessage(Message msg) {
updateChart();
super.handleMessage(msg);
}
};
task = new TimerTask() {
@Override
public void run() {
Message message = new Message();
message.what = 1;
handler.sendMessage(message);
}
};
timer.schedule(task, 1,20); //����
preview = (SurfaceView) findViewById(R.id.id_preview);
previewHolder = preview.getHolder();
previewHolder.addCallback(surfaceCallback);
previewHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mTV_Heart_Rate = (TextView) findViewById(R.id.id_tv_heart_rate);
mTV_Avg_Pixel_Values = (TextView) findViewById(R.id.id_tv_Avg_Pixel_Values);
mTV_pulse = (TextView) findViewById(R.id.id_tv_pulse);
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "DoNotDimScreen");
}
@Override
public void onDestroy() {
timer.cancel();
super.onDestroy();
};
protected XYMultipleSeriesRenderer buildRenderer(int color, PointStyle style, boolean fill) {
XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
XYSeriesRenderer r = new XYSeriesRenderer();
r.setColor(Color.RED);
r.setLineWidth(1);
renderer.addSeriesRenderer(r);
return renderer;
}
/**
* @param renderer
* @param xTitle��x����
* @param yTitle��y����
* @param xMin��x������
* @param xMax��x���
* @param yMin:y������
* @param yMax��y���
* @param axesColor����ɫ
* @param labelsColor����ǩ
*/
protected void setChartSettings(XYMultipleSeriesRenderer renderer, String xTitle, String yTitle,
double xMin, double xMax, double yMin, double yMax, int axesColor, int labelsColor) {
renderer.setChartTitle(title);
renderer.setXTitle(xTitle);
renderer.setYTitle(yTitle);
renderer.setXAxisMin(xMin);
renderer.setXAxisMax(xMax);
renderer.setYAxisMin(yMin);
renderer.setYAxisMax(yMax);
renderer.setAxesColor(axesColor);
renderer.setLabelsColor(labelsColor);
renderer.setShowGrid(true);
renderer.setGridColor(Color.GREEN);
renderer.setXLabels(20);
renderer.setYLabels(10);
renderer.setXTitle("Time");
renderer.setYTitle("mmHg");
renderer.setYLabelsAlign(Align.RIGHT);
renderer.setPointSize((float) 3 );
renderer.setShowLegend(false);
}
/**
* ����ͼ����Ϣ
*/
private void updateChart() {
if(flag == 1) {
addY = 10;
}
else {
flag = 1;
if(gx < 200){
if(hua[20] > 1){
//Toast.makeText(MonitorFrequencia.this, "Identificando altera��o!", Toast.LENGTH_SHORT).show();
hua[20] = 0;
if(update == true){
device.setDevice("AndroidFrequenciaCardiaca");
device.setValor(String.valueOf(beatsAvg));
device.setUnidade("BPS");
rest.PostService(device);
update = false;
}
}
hua[20]++;
return;
}
else {
hua[20] = 10;
}
j = 0;
}
if(j < 20){
addY=hua[j];
j++;
}
mDataset.removeSeries(series);
int length = series.getItemCount();
int bz = 0;
//addX = length;
if (length > 300) {
length = 300;
bz=1;
}
addX = length;
for (int i = 0; i < length; i++) {
xv[i] = (int) series.getX(i) - bz;
yv[i] = (int) series.getY(i);
}
series.clear();
mDataset.addSeries(series);
series.add(addX, addY);
for (int k = 0; k < length; k++) {
series.add(xv[k], yv[k]);
}
chart.invalidate();
} //����
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
}
@Override
public void onResume() {
super.onResume();
wakeLock.acquire();
camera = Camera.open();
startTime = System.currentTimeMillis();
}
@Override
public void onPause() {
super.onPause();
wakeLock.release();
camera.setPreviewCallback(null);
camera.stopPreview();
camera.release();
camera = null;
}
private static PreviewCallback previewCallback = new PreviewCallback() {
public void onPreviewFrame(byte[] data, Camera cam) {
if (data == null) {
throw new NullPointerException();
}
Camera.Size size = cam.getParameters().getPreviewSize();
if (size == null) {
throw new NullPointerException();
}
if (!processing.compareAndSet(false, true)) {
return;
}
int width = size.width;
int height = size.height;
int imgAvg = ImageProcessing.decodeYUV420SPtoRedAvg(data.clone(),height,width);
gx = imgAvg;
//mTV_Avg_Pixel_Values.setText("ƽ������ֵ��" + String.valueOf(imgAvg));
if (imgAvg == 0 || imgAvg == 255) {
processing.set(false);
return;
}
int averageArrayAvg = 0;
int averageArrayCnt = 0;
for (int i = 0; i < averageArray.length; i++) {
if (averageArray[i] > 0) {
averageArrayAvg += averageArray[i];
averageArrayCnt++;
}
}
int rollingAverage = (averageArrayCnt > 0)?(averageArrayAvg/averageArrayCnt):0;
TYPE newType = currentType;
if (imgAvg < rollingAverage) {
newType = TYPE.RED;
if (newType != currentType) {
beats++;
flag=0;
// mTV_pulse.setText("��������" + String.valueOf(beats));
}
} else if (imgAvg > rollingAverage) {
newType = TYPE.GREEN;
}
if(averageIndex == averageArraySize) {
averageIndex = 0;
}
averageArray[averageIndex] = imgAvg;
averageIndex++;
if (newType != currentType) {
currentType = newType;
}
long endTime = System.currentTimeMillis();
double totalTimeInSecs = (endTime - startTime) / 1000d;
if (totalTimeInSecs >= 2) {
double bps = (beats / totalTimeInSecs);
int dpm = (int) (bps * 60d);
if (dpm < 30 || dpm > 180|| imgAvg < 200) {
startTime = System.currentTimeMillis();
beats = 0;
processing.set(false);
return;
}
if(beatsIndex == beatsArraySize) {
beatsIndex = 0;
}
beatsArray[beatsIndex] = dpm;
beatsIndex++;
int beatsArrayAvg = 0;
int beatsArrayCnt = 0;
for (int i = 0; i < beatsArray.length; i++) {
if (beatsArray[i] > 0) {
beatsArrayAvg += beatsArray[i];
beatsArrayCnt++;
}
}
beatsAvg = (beatsArrayAvg / beatsArrayCnt);
mTV_Heart_Rate.setText("Batimentos: "+String.valueOf(beatsAvg));
//" ֵ:" + String.valueOf(beatsArray.length) +
// " " + String.valueOf(beatsIndex) +
//" " + String.valueOf(beatsArrayAvg) +
//" " + String.valueOf(beatsArrayCnt));
startTime = System.currentTimeMillis();
beats = 0;
update = true;
}
processing.set(false);
}
};
private static SurfaceHolder.Callback surfaceCallback = new SurfaceHolder.Callback() {
@Override
public void surfaceCreated(SurfaceHolder holder) {
try {
camera.setPreviewDisplay(previewHolder);
camera.setPreviewCallback(previewCallback);
} catch (Throwable t) {
Log.e("PreviewDemo-surfaceCallback","Exception in setPreviewDisplay()", t);
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) {
Camera.Parameters parameters = camera.getParameters();
parameters.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);
Camera.Size size = getSmallestPreviewSize(width, height, parameters);
if (size != null) {
parameters.setPreviewSize(size.width, size.height);
}
camera.setParameters(parameters);
camera.startPreview();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
}
};
private static Camera.Size getSmallestPreviewSize(int width, int height, Camera.Parameters parameters) {
Camera.Size result = null;
for (Camera.Size size : parameters.getSupportedPreviewSizes()) {
if (size.width <= width && size.height <= height) {
if (result == null) {
result = size;
}
else {
int resultArea = result.width * result.height;
int newArea = size.width * size.height;
if (newArea < resultArea) {
result = size;
}
}
}
}
return result;
}
}