如何使用TrafficStats类在Android中获取Wifi数据计数器

我使用下面的代码在Android中使用“TrafficStats”类获取流量数据

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">

<TextView  
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/traffic_info"
android:padding="10dip"/>

---

它返回的价值是移动的（我相信这是所有网络的组合）。有没有办法分别获得Wi-Fi和3G价值？我还注意到在辨别的准确性上有很多问题

如果你放一些文字来更好地解释正在发生的事情，那就太好了。如果你放一些文字来更好地解释正在发生的事情，那就太好了。

        TextView totData = (TextView)findViewById(R.id.totData);

        TextView wifiTot = (TextView)findViewById(R.id.wifitotData);
        TextView wifiTX = (TextView)findViewById(R.id.wifiUpData);
        TextView wifiRX = (TextView)findViewById(R.id.wifiDownData);

        TextView mobileTot = (TextView)findViewById(R.id.mobtotData);
        TextView mobTX = (TextView)findViewById(R.id.mobUpData);
        TextView mobRX = (TextView)findViewById(R.id.mobDownData);

        /*
         * Converting bytes to MB
         */
        long rxBytes = TrafficStats.getTotalRxBytes()/1048576;
        long txBytes = TrafficStats.getTotalTxBytes()/1048576;

        long mobUpload = TrafficStats.getMobileTxBytes()/1048576;
        long mobDown = TrafficStats.getMobileRxBytes()/1048576;

        long wifiUpload = txBytes-(mobUpload);
        long wifiDown = rxBytes-(mobDown);

        wifiRX.setText(Long.toString(wifiDown));
        wifiTX.setText(Long.toString(wifiUpload));
        long wifitot = wifiUpload+wifiDown;
        wifiTot.setText(Long.toString(wifitot));

        mobTX.setText(Long.toString(mobUpload));
        mobRX.setText(Long.toString(mobDown));
        long mobTot = mobUpload+mobDown;
        mobileTot.setText(Long.toString(mobTot));

        totData.setText(Long.toString(wifitot+mobTot));

        TextView totData = (TextView)findViewById(R.id.totData);

        TextView wifiTot = (TextView)findViewById(R.id.wifitotData);
        TextView wifiTX = (TextView)findViewById(R.id.wifiUpData);
        TextView wifiRX = (TextView)findViewById(R.id.wifiDownData);

        TextView mobileTot = (TextView)findViewById(R.id.mobtotData);
        TextView mobTX = (TextView)findViewById(R.id.mobUpData);
        TextView mobRX = (TextView)findViewById(R.id.mobDownData);

        /*
         * Converting bytes to MB
         */
        long rxBytes = TrafficStats.getTotalRxBytes()/1048576;
        long txBytes = TrafficStats.getTotalTxBytes()/1048576;

        long mobUpload = TrafficStats.getMobileTxBytes()/1048576;
        long mobDown = TrafficStats.getMobileRxBytes()/1048576;

        long wifiUpload = txBytes-(mobUpload);
        long wifiDown = rxBytes-(mobDown);

        wifiRX.setText(Long.toString(wifiDown));
        wifiTX.setText(Long.toString(wifiUpload));
        long wifitot = wifiUpload+wifiDown;
        wifiTot.setText(Long.toString(wifitot));

        mobTX.setText(Long.toString(mobUpload));
        mobRX.setText(Long.toString(mobDown));
        long mobTot = mobUpload+mobDown;
        mobileTot.setText(Long.toString(mobTot));

        totData.setText(Long.toString(wifitot+mobTot));