Capture data in a file.
package com.hong.network.monitor;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.TimeZone;
import android.net.TrafficStats;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
/* Network Monitor
* 26-10-2012 Initial Create
*
* Know issue:
* - WiFi Turn off will reset the counter
* - No Function for monitor WiFi only => WiFi = Total - Mobile may include other information
*
*
*/
public class MainActivity extends Activity {
private Handler mHandler = new Handler();
private long mStartRX = 0;
private long mStartTX = 0;
private long systemMs;
private long mStartMobileRX = 0;
private long mStartMobileTX = 0;
private TextView RX,TX;
private Button Start;
private boolean start=false;
File fOut = null;
OutputStreamWriter osw = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.i("Network Mon","onCreate " + start);
mStartRX = TrafficStats.getTotalRxBytes();
mStartTX = TrafficStats.getTotalTxBytes();
mStartMobileRX = TrafficStats.getMobileRxBytes();
mStartMobileTX = TrafficStats.getMobileTxBytes();
RX = (TextView)findViewById(R.id.RX);
TX = (TextView)findViewById(R.id.TX);
Start = (Button)findViewById(R.id.start);
Start.setOnClickListener(capture);
if (mStartRX == TrafficStats.UNSUPPORTED || mStartTX == TrafficStats.UNSUPPORTED) {
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Uh Oh!");
alert.setMessage("Your device does not support traffic stat monitoring.");
alert.show();
}
else {
mHandler.postDelayed(mRunnable, 1000);
}
}
@Override
public void onPause() {
super.onPause();
Log.i("Network Mon","onPause " + start);
}
@Override
public void onResume() {
super.onResume();
Log.i("Network Mon","onResume " + start);
}
@Override
public void onStop() {
super.onStop();
Log.i("Network Mon","onStop " + start);
}
@Override
public void onStart() {
super.onStart();
Log.i("Network Mon","onStart" + start);
}
@Override
public void onDestroy() {
super.onDestroy();
Log.i("Network Mon","onDestory " + start);
mHandler.removeCallbacks(mRunnable);
start = false;
Start.setText("start");
if(osw != null) {
try {
osw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
osw = null;
}
}
public OnClickListener capture = new OnClickListener(){
public void onClick(View v) {
if(start) {
if(osw != null) {
try {
osw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
osw=null;
}
Start.setText("start");
start = false;
}
else {
try{
systemMs = System.currentTimeMillis();
Calendar localCalendar = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
fOut = new File(Environment.getExternalStorageDirectory() + "/" + sdf.format(localCalendar.getTime()) + ".txt");
osw = new FileWriter(fOut);
osw.write("Time(s), Rx Mobile (Bytes), Rx Total (Bytes), Tx Mobile (Bytes), Tx Total (Bytes)");
} catch (Exception e) {
Toast.makeText(getBaseContext(), e.getMessage(),Toast.LENGTH_SHORT).show();
}
Start.setText("stop");
start = true;
}
}
};
private final Runnable mRunnable = new Runnable() {
public void run() {
long rxBytes = TrafficStats.getTotalRxBytes();
long rxMobilesBytes = TrafficStats.getMobileRxBytes();
long txBytes = TrafficStats.getTotalTxBytes();
long txMobilesBytes = TrafficStats.getMobileTxBytes();
// Mobile, Total
Log.i("Network Stats","Traffic RX:" + Long.toString(mStartMobileRX) + ", " + Long.toString(rxMobilesBytes) + ", " + Long.toString(mStartRX) + ", " + Long.toString(rxBytes));
Log.i("Network Stats","Traffic TX:" + Long.toString(mStartMobileTX) + ", " + Long.toString(txMobilesBytes) + ", " + Long.toString(mStartTX) + ", " + Long.toString(txBytes));
RX.setText("" + Long.toString(rxMobilesBytes - mStartMobileRX) + ", " + Long.toString(rxBytes - mStartRX));
TX.setText("" + Long.toString(txMobilesBytes - mStartMobileTX) + ", " + Long.toString(txBytes -mStartTX));
if(start) {
try {
osw.write(String.format("%06d ", (System.currentTimeMillis() - systemMs)/1000) + RX.getText() + ", " + TX.getText() + "\n");
Log.i("Network Saved",RX.getText() + ", " + TX.getText());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(rxBytes - mStartRX < 0) {
mStartRX = 0;
Log.i("Network Stats", "Traffic Rx WiFi Reset");
}
else {
mStartRX = rxBytes;
}
if(txBytes - mStartTX < 0) {
mStartTX = 0;
Log.i("Network Stats", "Traffic Tx WiFi Reset");
}
else {
mStartTX = txBytes;
}
mStartMobileRX = rxMobilesBytes;
mStartMobileTX = txMobilesBytes;
mHandler.postDelayed(mRunnable, 1000);
}
};
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
