读取android手机流量信息

参考: http://www.2cto.com/kf/201109/102970.html

android手机流量信息系统是LINUX内核记录在/proc/self/net/dev文件里面

我们可以看看dev文件的格式

写道 C:\>adb shell cat /proc/net/dev
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
lo: 2268 34 0 0 0 0 0 0 2268 34 0 0 0 0 0 0
eth0: 1556548 19773 0 0 0 0 0 0 2620154 17233 0 0 0 0 0 0
tunl0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
gre0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

C:\>

我们要获取流量可以通过这个文件进行读取
读取的源代码如下

代码写道 package com.aking86.test;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.Calendar;

import org.apache.http.util.EncodingUtils;

import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.widget.Toast;

public class mService1 extends Service {

private Handler objHandler = new Handler();
private int intCounter = 0;
private int mHour;
private int mMinute;
private int mYear;
private int mMonth;
private int mDay;
private String mdate;
final public String DEV_FILE = "/proc/self/net/dev";// 系统流量文件
String[] ethdata = { "0", "0", "0", "0", "0", "0", "0", "0", "0", "0", "0",
"0", "0", "0", "0", "0" };
String[] gprsdata = { "0", "0", "0", "0", "0", "0", "0", "0", "0", "0",
"0", "0", "0", "0", "0", "0" };
String[] wifidata = { "0", "0", "0", "0", "0", "0", "0", "0", "0", "0",
"0", "0", "0", "0", "0", "0" };
String data = "0,0,0,0,0,0,0,0,0,0,0,0";// 对应on.txt里面的格式
final String ETHLINE = " eth0";// eth是以太网信息 tiwlan0 是 Wifi rmnet0 是 GPRS
final String GPRSLINE = "rmnet0";
final String WIFILINE = "tiwlan0";
final String TEXT_ENCODING = "UTF-8";

final public String ONPATH = "/data/data/zy.dnh/on.txt";
final public String LOGPATH = "/data/data/zy.dnh/log.txt";
private Runnable mTasks = new Runnable() {

public void run()// 运行该服务执行此函数
{
refresh();

intCounter++;
// DisplayToast("Counter:"+Integer.toString(intCounter));
objHandler.postDelayed(mTasks, 3000);// 每3000毫秒执行一次
}
};

@Override
public void onStart(Intent intent, int startId) {
objHandler.postDelayed(mTasks, 0);
super.onStart(intent, startId);
}

@Override
public void onCreate() {
super.onCreate();
}

@Override
public IBinder onBind(Intent intent) {
return null;
}

@Override
public void onDestroy() {
/* */
objHandler.removeCallbacks(mTasks);
super.onDestroy();
}

public void DisplayToast(String str) {
Toast.makeText(this, str, Toast.LENGTH_SHORT).show();
}

public void readdev() {
FileReader fstream = null;
try {
fstream = new FileReader(DEV_FILE);

} catch (FileNotFoundException e) {
DisplayToast("Could not read " + DEV_FILE);

}
BufferedReader in = new BufferedReader(fstream, 500);
String line;
String[] segs;
String[] netdata;

int count = 0;
int k;
int j;
try {
while ((line = in.readLine()) != null) {
segs = line.trim().split(":");
if (line.startsWith(ETHLINE)) {

netdata = segs[1].trim().split(" ");
for (k = 0, j = 0; k < netdata.length; k++) {
if (netdata[k].length() > 0) {

ethdata[j] = netdata[k];
j++;
}
}
} else if (line.startsWith(GPRSLINE)) {

netdata = segs[1].trim().split(" ");
for (k = 0, j = 0; k < netdata.length; k++) {
if (netdata[k].length() > 0) {

gprsdata[j] = netdata[k];
j++;
}
}
} else if (line.startsWith(WIFILINE)) {

netdata = segs[1].trim().split(" ");
for (k = 0, j = 0; k < netdata.length; k++) {
if (netdata[k].length() > 0) {

wifidata[j] = netdata[k];
j++;
}
}
}

count++;
}
fstream.close();

} catch (IOException e) {
DisplayToast(e.toString());
}
}

public String getinfo(String path) {
File file;
String str = "";
FileInputStream in;
try {
// 打开文件file的InputStream
file = new File(path);
in = new FileInputStream(file);
// 将文件内容全部读入到byte数组
int length = (int) file.length();
byte[] temp = new byte[length];
in.read(temp, 0, length);
// 将byte数组用UTF-8编码并存入display字符串中
str = EncodingUtils.getString(temp, TEXT_ENCODING);
// 关闭文件file的InputStream

in.close();
} catch (IOException e) {

DisplayToast(e.toString());

}
return str;
}

public void writefile(String str, String path) {
File file;
FileOutputStream out;
try {
// 创建文件
file = new File(path);
file.createNewFile();
// 打开文件file的OutputStream
out = new FileOutputStream(file);
String infoToWrite = str;
// 将字符串转换成byte数组写入文件
out.write(infoToWrite.getBytes());
// 关闭文件file的OutputStream
out.close();
} catch (IOException e) {
// 将出错信息打印到Logcat
DisplayToast(e.toString());
}

}

public void refresh() {

readdev();// 读取本次开机之后直到当前系统的总流量

data = ethdata[0] + "," + ethdata[1] + "," + ethdata[8] + ","
+ ethdata[9] + "," + gprsdata[0] + "," + gprsdata[1] + ","
+ gprsdata[8] + "," + gprsdata[9] + "," + wifidata[0] + ","
+ wifidata[1] + "," + wifidata[8] + "," + wifidata[9];
String onstr = getinfo(ONPATH);// 读取on.txt记录到onstr里
String ondata[] = onstr.split(",");// 将onstr各项分离放到ondata里
// 计算增量
int[] delta = new int[12];

delta[0] = Integer.parseInt(ethdata[0]) - Integer.parseInt(ondata[0]);
delta[1] = Integer.parseInt(ethdata[1]) - Integer.parseInt(ondata[1]);
delta[2] = Integer.parseInt(ethdata[8]) - Integer.parseInt(ondata[2]);
delta[3] = Integer.parseInt(ethdata[9]) - Integer.parseInt(ondata[3]);
delta[4] = Integer.parseInt(gprsdata[0]) - Integer.parseInt(ondata[4]);
delta[5] = Integer.parseInt(gprsdata[1]) - Integer.parseInt(ondata[5]);
delta[6] = Integer.parseInt(gprsdata[8]) - Integer.parseInt(ondata[6]);
delta[7] = Integer.parseInt(gprsdata[9]) - Integer.parseInt(ondata[7]);
delta[8] = Integer.parseInt(wifidata[0]) - Integer.parseInt(ondata[8]);
delta[9] = Integer.parseInt(wifidata[1]) - Integer.parseInt(ondata[9]);
delta[10] = Integer.parseInt(wifidata[8])
- Integer.parseInt(ondata[10]);
delta[11] = Integer.parseInt(wifidata[9])
- Integer.parseInt(ondata[11]);

// 读取log.txt
// 获取当前时间
final Calendar c = Calendar.getInstance();
mYear = c.get(Calendar.YEAR); // 获取当前年份
mMonth = c.get(Calendar.MONTH) + 1;// 获取当前月份
mDay = c.get(Calendar.DAY_OF_MONTH);// 获取当前月份的日期号码
mHour = c.get(Calendar.HOUR_OF_DAY);// 获取当前的小时数
mMinute = c.get(Calendar.MINUTE);// 获取当前的分钟数
mdate = mYear + "-" + mMonth + "-" + mDay;

String text = getinfo(LOGPATH);// 将log.txt的内容读到text字符串中
String[] line = text.split("/n");

String today = line[line.length - 1];// 获得今日已记录流量
String[] beToday = today.split(",");
// 检查文件最后一行是否为今天的流量记录信息
if (!beToday[0].equals(mdate))// 如果文件只有一行，表明目前日志为空，将当前日期加入
// 判断今日流量是否已经记录,如果今日流量没有记录
{
text = text + mdate + ",0,0,0,0,0,0,0,0,0,0,0,0/n";
writefile(text, LOGPATH);

line = text.split("/n");
today = line[line.length - 1];// 获得今日已记录流量

beToday = today.split(",");
}

int i;

// 处理今日流量
int[] newTodaydata = new int[12];// 表示今日流量
String newtoday = mdate;
for (i = 0; i <= 11; i++) {
newTodaydata[i] = Integer.parseInt(beToday[i + 1]) + delta[i];
newtoday = newtoday + "," + newTodaydata[i];
}
newtoday = newtoday + "/n";

String[] beTotal = line[0].split(",");
int[] newTotaldata = new int[12];// 表示总流量数值
// 更新第一行
String newtotal = "total";
for (i = 0; i <= 11; i++) {
newTotaldata[i] = Integer.parseInt(beTotal[i + 1]) + delta[i];// 总流量数值+delta[i]更新
newtotal = newtotal + "," + newTotaldata[i];
}
newtotal = newtotal + "/n";
// 处理中间不变的部分
String before = "";// before为之前的从第1行到昨天的流量记录

for (i = 1; i <= line.length - 2; i++)
before = before + line[i] + "/n";// 代表中间不变的部分

String newlog = newtotal + before + newtoday;

writefile(data, ONPATH);// 更新流量记录
writefile(newlog, LOGPATH);// 更新log*/

}

}

更多相关文章

随机推荐