工具类
public class NetWorkSpeedUtils {
private Context context;
private Handler mHandler;
private long lastTotalRxBytes = 0;
private long lastTimeStamp = 0;
public NetWorkSpeedUtils(Context context, Handler mHandler){
this.context = context;
this.mHandler = mHandler;
}
TimerTask task = new TimerTask() {
@Override
public void run() {
showNetSpeed();
}
};
public void startShowNetSpeed(){
lastTotalRxBytes = getTotalRxBytes();
lastTimeStamp = System.currentTimeMillis();
new Timer().schedule(task, 1000, 1000); // 1s后启动任务,每2s执行一次
}
private long getTotalRxBytes() {
return TrafficStats.getUidRxBytes(context.getApplicationInfo().uid) == TrafficStats.UNSUPPORTED ? 0 :(TrafficStats.getTotalRxBytes()/1024);//转为KB
}
private void showNetSpeed() {
long nowTotalRxBytes = getTotalRxBytes();
long nowTimeStamp = System.currentTimeMillis();
long speed = ((nowTotalRxBytes - lastTotalRxBytes) * 1000 / (nowTimeStamp - lastTimeStamp));//毫秒转换
long speed2 = ((nowTotalRxBytes - lastTotalRxBytes) * 1000 % (nowTimeStamp - lastTimeStamp));//毫秒转换
lastTimeStamp = nowTimeStamp;
lastTotalRxBytes = nowTotalRxBytes;
Message msg = mHandler.obtainMessage();
msg.what = 100;
msg.obj = String.valueOf(speed) + "." + String.valueOf(speed2) + " kb/s";
mHandler.sendMessage(msg);//更新界面
}
}
使用
new NetWorkSpeedUtils(this, mNetHnadler).startShowNetSpeed();
private Handler mNetHnadler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case 100:
netSpeedTV.setText(msg.obj.toString());
break;
}
super.handleMessage(msg);
}
};
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