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TrafficStats——流量统计类的范例,获取实时网速

 

 

2.3开始android就提供来这个类的API,这样我们就可以方便的用他来实现统计手机流量来。这个类其实也很简单,我贴上他的几个方法,大家一看就知道怎么用了。

static long getMobileRxBytes() //获取通过Mobile连接收到的字节总数,不包含WiFi
static long getMobileRxPackets() //获取Mobile连接收到的数据包总数
static long getMobileTxBytes() //Mobile发送的总字节数
static long getMobileTxPackets() //Mobile发送的总数据包数
static long getTotalRxBytes() //获取总的接受字节数,包含Mobile和WiFi等
static long getTotalRxPackets() //总的接受数据包数,包含Mobile和WiFi等
static long getTotalTxBytes() //总的发送字节数,包含Mobile和WiFi等
static long getTotalTxPackets() //发送的总数据包数,包含Mobile和WiFi等
static long getUidRxBytes(int uid) //获取某个网络UID的接受字节数,某一个进程的总接收量
static long getUidTxBytes(int uid) //获取某个网络UID的发送字节数,某一个进程的总发送量

 

下面说我做实时网速的思路:

1.获得当前的总接受数据,getTotalRxPackets()

2.每隔几秒再获取一次总接收的数据

3.讲最新获取的数据减去之前获取的数据并且除以间隔的秒数,就得到了每秒平均的网速b/s,最后进行单位转换为kb、Mb等等

 

实现:

1.得到当前网速的方法

初始时给total_data一个值:

private long total_data = http://www.mamicode.com/TrafficStats.getTotalRxBytes();

之后每次获取的数值要减去total_data再除以间隔秒数,并且将total重新赋值为最新的。

    /**     * 核心方法,得到当前网速     * @return     */    private int getNetSpeed() {          long traffic_data = http://www.mamicode.com/TrafficStats.getTotalRxBytes() - total_data;        total_data = TrafficStats.getTotalRxBytes();        return (int)traffic_data /count ;    }

 

2.周期性的获取网速

/**     * 定义线程周期性地获取网速     */    private Runnable mRunnable = new Runnable() {        @Override        public void run() {            //定时器            mHandler.postDelayed(mRunnable, count * 1000);            Message msg = mHandler.obtainMessage();            msg.what = 1;            msg.arg1 = getNetSpeed();            mHandler.sendMessage(msg);        }    };

 

3.单位转换

@Override    public void onCreate() {        super.onCreate();                mHandler = new Handler(){            @Override            public void handleMessage(Message msg) {                super.handleMessage(msg);                if (msg.what == 1) {                    //float real_data = http://www.mamicode.com/(float)msg.arg1;                    if(msg.arg1  > 1024 ){                        System.out.println(msg.arg1 / 1024 + "kb/s");                                        }                    else{                        System.out.println(msg.arg1 + "b/s");                        }                }            }        };    }

 

4.启动handler和停止handler

PS:服务开始就执行runnable中的方法,并且runnable中设置handler循环执行。执行runnable中run()方法时,将网速包装到message中,交给handler进行单位转换并显示(这里在handler中进行单位转换是为了方便显示到ui中)

/**     * 启动服务时就开始启动线程获取网速     */    @Override    public void onStart(Intent intent, int startId) {        mHandler.postDelayed(mRunnable, 0);    };    /**     * 在服务结束时删除消息队列     */    @Override    public void onDestroy() {        mHandler.removeCallbacks(mRunnable);        super.onDestroy();    };

 

@Override    public void onCreate() {        super.onCreate();                mHandler = new Handler(){            @Override            public void handleMessage(Message msg) {                super.handleMessage(msg);                if (msg.what == 1) {                    //float real_data = http://www.mamicode.com/(float)msg.arg1;                    if(msg.arg1  > 1024 ){                        System.out.println(msg.arg1 / 1024 + "kb/s");                                        }                    else{                        System.out.println(msg.arg1 + "b/s");                        }                }            }        };

 

最后,全部代码

Service:

package com.kale.netspeed;import android.app.Service;import android.content.Intent;import android.net.TrafficStats;import android.os.Handler;import android.os.IBinder;import android.os.Message;/** * @author:Jack Tony * @tips  :实时获取当前网速的service * @date  :2014-9-24 */public class Net_Service extends Service {    private long total_data =http://www.mamicode.com/ TrafficStats.getTotalRxBytes();    private Handler mHandler;    //几秒刷新一次    private final int count = 5;    /**     * 定义线程周期性地获取网速     */    private Runnable mRunnable = new Runnable() {        @Override        public void run() {            //定时器            mHandler.postDelayed(mRunnable, count * 1000);            Message msg = mHandler.obtainMessage();            msg.what = 1;            msg.arg1 = getNetSpeed();            mHandler.sendMessage(msg);        }    };        @Override    public void onCreate() {        super.onCreate();                mHandler = new Handler(){            @Override            public void handleMessage(Message msg) {                super.handleMessage(msg);                if (msg.what == 1) {                    //float real_data = http://www.mamicode.com/(float)msg.arg1;                    if(msg.arg1  > 1024 ){                        System.out.println(msg.arg1 / 1024 + "kb/s");                                        }                    else{                        System.out.println(msg.arg1 + "b/s");                        }                }            }        };                    }        /**     * 核心方法,得到当前网速     * @return     */    private int getNetSpeed() {          long traffic_data = http://www.mamicode.com/TrafficStats.getTotalRxBytes() - total_data;        total_data = TrafficStats.getTotalRxBytes();        return (int)traffic_data /count ;    }    /**     * 启动服务时就开始启动线程获取网速     */    @Override    public void onStart(Intent intent, int startId) {        mHandler.postDelayed(mRunnable, 0);    };    /**     * 在服务结束时删除消息队列     */    @Override    public void onDestroy() {        mHandler.removeCallbacks(mRunnable);        super.onDestroy();    };    @Override    public IBinder onBind(Intent intent) {        return null;    }}

 

<service android:name="com.kale.netspeed.Net_Service"/>

 

Activity:

package com.kale.netspeed;import android.app.Activity;import android.content.Intent;import android.os.Bundle;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                startService(new Intent(MainActivity.this,Net_Service.class));    }}

 

参考自:http://gundumw100.iteye.com/blog/1294167

 

TrafficStats——流量统计类的范例,获取实时网速